How to shutdown Computer with Timer?

Here is another trick to shutdown computer at a specific time, for example if you wish to shutdown at 1:45am. Type this in

start=>Run

Type : at 1:45 shutdown -s

TO ABORT:
Code:shutdown -a

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Hosa 6' Firewire 800 9 Pin to 4 Pin Computer DV Cable

Hosa 6' Firewire 800 9 Pin to 4 Pin Computer DV Cable # Best Cheap Sale

A Hot-swappable Firewire 800 (Apple IEEE-1394 or Sony iLink): 9-Pin to 6-Pin, with a supported transfer speed up to 400 Mbps. that allows simultaneous connection of up to 63 devices, and features like real-time digital audio and video. With lightning-fast digital audio and video transfer rivaling SCSI and a Hosa lifetime warranty, this DV Cable with PVC overmolding shielding is excellent for quick, easy installation Plug-and-Play data transfer from devices such as digital camcorders, CD burners, scanners and more. This FireWire 800 cable is also backward-compatible with previous FireWire technology, which allows you continued usage with printers, video conferencing cameras, scanners, and fixed-disk drives. Complies with IEEE 1394b standards for radio frequency and electromagnetic interference reduction. Hosa Style, quality, performance and value with the best in cable technology.

#You can get best price for this brand Hosa cheap Sale this blog#

Feature Review

• With a supported transfer speed up to 400 Mbps
• Allows simultaneous connection of up to 63 devices
• Overmolding shielding is excellent for quick
• Features like real-time digital audio and video
• With lightning-fast digital audio and video transfer

READ CUSTOMER REVIWES CLICK HERE

If you are the one who love the this brand Hosa you must not miss this review of Hosa 6' Firewire 800 9 Pin to 4 Pin Computer DV Cable. You can read all the reviews or compare special prices sale from

*** Product Information and Prices Stored: May 29, 2011 21:48:09

Steering Wheels For Sale

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iBypower Gamer 922SLCK Gaming Computer reviews

If you are seeking for a new gaming computer, thenmake a detailed examin the iBUYPOWER Gamer Supreme 922SLCK. Equipped with a 3.34GHz Intel Core i7 2600K processor, this gaming rig features an nVidia GTX 580 graphics card with a 1.5GB GDDR5 memory.

An 8GB DDR3 memory, a 1TB of hard disk drive, a DVD-RW drive and the Microsoft Windows 7 Home Premium 64-bit OS. Other specs include 6x USB 2.0, 2x USB 3.0, a 12-in-1 card reader, 8-channel audio and 10/100/1000Mbps LAN. If you are interested, you can buy the iBUYPOWER Gamer Supreme 922SLCK for $1,599.99.

you will be be capable of overclock in th time come to give your system a new life. We outfitted the iBUYPOWER Gamer Supreme 922SLCK Gaming PC with the amazing Intel quad core processor clocked at 3.4GHz and the powerful NVIDIA GTX 580 graphics card which has a dedicated 1.5GB vram.

• Intel Core i7 2600K 3.34GHz
• NVIDIA GTX 580 1.5GB Video Memory
• 8GB 1333MHz DDR3 Memory
• 1TB SATA Hard Drive
• DVD±RW DL Optical Drive
• 2x USB 3.0 ports and 6x USB 2.0 ports
• 8-channel audio
• 12-in-1 Media Card Reader
• 800 Watt Power Supply
• Liquid Cooling
• Microsoft Windows 7 Home Premium 64bit

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Toshiba introduced Satellite C655-S5119 Laptop computer

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Toshiba belongs to the most well-known computer manufacturers, that is famous for a ton of users. With that said, the Toshiba has introduced release a new laptop computer in the market. Extra particularly, it is within the line of Toshiba Satellite series netbook and called Toshiba Satellite C655-S5119.

Toshiba Satellite C655-S5119 notebook computer have lot of excellent features

as it's additional notebooks. If, you don't know about the latest Toshiba notebook, we will also present their aspects to you within the following article.

Toshiba Satellite C655-S5119 laptop computer has a 15.6 inch of TruBrite screen with a 1366 x 768 pixel of resolution, in addition to driven with 2.0 GHz Intel Pentium P6100 double core processor chip, and operates on Microsoft Windows 7 House Premium OS. Additional detail features of Toshiba Satellite C655-S5119 laptop computer are shown within the following.

 

The primary features of Toshiba Satellite C655-S5119:

• a 15.6 '' of TruBrite screen with1366 x 768 pixels resolution with16: 9 ratio.
• Operating System: Microsoft Windows 7 House Premium OS.
• Processor: 2.0 GHz Intel Pentium P6100 double core CPU.
• 2 overall USB slots. Intel HIGH DEFINITION graphics, VGA movie output, 3 MB L3 cache.
• 8x super multi DVD drive which handle dual layer.
• Toshiba Multimedia Controller, Multi format memory card card reader.
• The 6 cell 48 Working hours battery delivers around 4. 5 hours of battery lifetime.
• 3 GigaByte of installed DDR3 RAM MEMORY at 1066 MHz.
• 320 GB with 5400 RPM SATA hard disk.
• Quick Ethernet 10/100, Wi-Fi networking.

Toshiba Satellite C655-S5119 laptop computer can be obtained to buy at the cost of about $478. 99.

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HP ProBook 5320m computer Laptop Price, Specs and Reviews

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HP ProBook 5320m computer Laptop is a stylish and well-favoured laptop that has magnificent features like 13.3 inch diagonal LED backlit HIGH DEFINITION screen, a Full sized spill resistant keyboard along with HP DuraKeys, Built in 2 MP web cam with fixed focused lens, etc. It's got nearly 4 GB 1333MHz DDR3 SDRAM, 500 GB SATAII (7200 rpm) hard disk drive, and 128 GB SSD. The LED backlit screen laptop computer of HP can be connecte along with any exterior display by using VGA or Display port.

Specifications:

• Chipset: Mobile Intel HM57 Express.
• Product weight: Beginning at 1. 72 kg.
• Product measurements (W x D x H): 32. 80 x 22. 10 x 2. 35 cm.
• Memory: 4 GB 1333MHz DDR3 SDRAM.
• Hard Disk: 500 GB SATAII (7200 rpm).
• Solid State Drive 128 GB.
• Optical drives: HP Exterior USB 2. 0 CD/DVD R/RW (select models).
• Display: 13. 3″ diagonal LED backlit HD.
• Graphics: Intel High Definition Graphics.
• Ports.
• 3 USB 2. 0.
• 1 external VGA monitor.
• 1 DisplayPort.
• 1 stereo system headphone/mic jack.
• 1 AC power.
• 1 RJ-45.
• Slots: 1 secure digital.
• Audio: Stereo speakers; Built-in dual-microphone array; stereo headphone/mic jack.
• Incorporated 2 MP web cam with fixed focused lens.
• Keyboard: Full sized spill resistant keyboard along with HP DuraKeys.
• Integrated Realtek Ethernet (10/100/1000 NIC).
• Wireless technology WiFi 802. 11a/b/g/n.

Price in Dollar: $603 – $662

Price in Euro: 445 – 489 (Euro).

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Sony VPCZ133GX/B VAIO Ultraportable notebook computer Characteristics with Integrated card reader

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Sony VPCZ133GX/B Vaio is arriving below Sony’s Z series laptop computer that is available pre-installed with Genuine Home windows 7 Professional 64 bit operating-system. It includes full of superior functions like 13. 1 inch BROUGHT backlight display with quality of 1600×900 pixels, DVD Double Layer Burner, Energetic Hybrid Graphics and so on. This Z series laptop computer of Sony is actually powered by 2. 53 GHz Intel i5-460M Core processor chip as well as designed with NVIDIA 330M GeForce Images with 1GB VRAM, 128GB strong state drive etc.

Sony VPCZ133GX/B VAIO Ultraportable laptop Specifications:

• 13. 1 inch BROUGHT backlight display with quality of 1600×900 pixels.
• 2. 53 GHz i5-460M Intel Core processor chip.
• Pre-installed Great Windows 7 Professional 64-bit Operating System.
• NVIDIA 330M GeForce Images with 1GB VRAM.
• 128 GB strong drive.
• 802. 11n Wi-fi compatibility and Bluetooth connectivity methods.
• Intel Turbo Elevate up to 2. 80 GHz.
• 4GB associated with DDR3 RAM.
• Powerful Graphics.
• DVD AND BLU-RAY Dual Layer Burner.
• HDMI output.
• Incorporated card reader.
• Involves 6 cell li-ion battery.

The Sony VPCZ133GX/B VAIO Laptop features a 6 cell li-ion battery and Bluetooth, in addition to Wi-Fi connectivity options. It may be connected with outer display via its HDMI slot. 

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HP ProBook 6555b Laptop computer

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Right after informing HP ProBook 4525s having a 14 inch diagonal LED-backlit screen in addition to a 2 megapixel internet digital camera this laptop is also availabe.

Based on the specs, HP ProBook 6555b includes a 15.6 inch HD diagonal LED backlit anti glare monitor screen which gives a high resolution. Furthermore, this notebook works with Authentic Windows 7 OS too. And also the 2 megapixel net digital camera supplies an opportunity so you might produce several records.  The graphics card will be powered by ATI Mobility Radeon HD 4250.

There's ability storage offered with a DDR3 up for 8GB, in addition to a 160GB hard drive up for 500GB. Also SATAII can be modified from 160GB to 500GB.

There are additional characteristics including HP Premier Sound,  3 USB 2.0, Screen Port, VGA, express Card port, media Card Reader, in addition to built-in stereo speakers and mic.

Primary characteristics listed in HP ProBook 6555b laptop:

 

• 15.6 inch HD diagonal LED backlit anti glare display screen..
• 2 megapixel internet digital camera.
• Authentic Windows 7 OS.
• Rraphics card driven by ATI Mobility Radeon HD 4250.
• DDR3 up to 8GB.
• 160GB hard drive up to 500GB.

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HP Pavilion dv4-2173nr Laptop computer Review

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HP Pavilion DV4-2173nr is Driven by 2.26GHz Intel Core i5-430M processor chip with Turbo Boost Technology around 2.53 GHz, 4GB DDR3 RAM MEMORY and Intel HIGH DEFINITION cartoon around 1696MB complete cartoon anamnesis provides ideal adaptable accomplishment to abutment yourself.

The HP Pavilion DV4-2173nr is all-in-one accomplishment with numerous ball features, you are able to adapt pictures and videos simply, make data files to CDs and DVDs, other make labels on CDs DVDs with LightScribe technology. You are able to aswell light your HP Pavilion DV4-2173nr by the removal of the optical drive from your HP Smart Bay. If you'r an beginner and want to have a lot of music, play videos, games, appointment and projects, this is a numerous pc.

HP Pavilion dv4-2173nr Laptop Picture

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Pavilion HP dv6-3140us 15.6 Inch Laptop computer, Approximately 5 Hours Battery Lifetime

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• AMD PhenomII Triple Core Cellular Processor chip P840 (1.90GHz, 1.5MB Cache); 4GB DDR3 SDRAM memory space (2 x 2GB) expandable upto 8GB; 500GB (5400 RPM) SATA hard disk drive; Authentic Windows 7 Home Premium 64 bit.

• 15.6 " diagonal Substantial Definition HP Bright View LED Display (1366 x 768), ATI Radeon Mobility High Definition 4250 Graphics having 128MB DDR3 Screen Cache Memory space along with about 2045MB entire graphics memory space.

• External Ports: 5 in one memory card reader; 4 USB 2. (4th slot shared with eSATA); one HDMI; 1 VGA (15 pin); 1 RJ 45 (LAN); one Headphone out; 1 Microphone in.

• LightScribe Technology Blu ray / SuperMulti DVD Burner; Dolby Superior Audio along with Altec Lansing loudspeakers; Incorporated 10/100/1000 Ethernet LAN Gigabit; Wireless LAN 802.11 b/g/n WLAN.

• Covered aluminum end; 101 key appropriate along with island-fashion complete dimension keyboard; HP Clickpad along with On/Off key; HP TrueVision Web cam along with built in digital mic; HP SimplePass along with built in fingerprint reader.

• There is a laptop PERSONAL COMPUTER designed for the way you play. In fact, the HP Pavilion dv6 includes software which enables you to begin playing suitable out of the box. Along with amazing graphics, audio, and video clip, along with a vast variety of options, the HP Pavilion dv6 Entertainment sequence laptop provides energy as well as effectiveness to match your quickly paced life style.

Pavilion  HP dv6-3140us picture

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ASUS type Eee computer 1015PEM and Eee computer 1215T released in India

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Asus introduced to produce it's two Eee COMPUTER versions for the Indian sub continent, the versions are named Eee COMPUTER 1215T and Eee COMPUTER 1015PEM. Asus company goals those consumers who search for laptop with reduced power, reduced price tag in addition to good functionality. These versions include various display dimensions. The netbooks follow the look of Asus Seashell. Both of these new laptops will be obtainable in varies of colors which includes Black, Red, White, and Silver. The Asus the Ee  computer 1215T laptop with DOS while Eee COMPUTER 1015PEM netbook includes Windows 7.

Asus Eee computer 1015PEM laptop includes a 10 " screen and this facilitates the 1024 x 600 pixels resolution. This new netbook provides a chiclet design key-board having a big track pad. The netbook driven by a 1.5 GHz Intel Atom N550 dual core processor chip with 1GB DDR3 1333 GHz Ram Memory. With regards to storage, it includes a 320 GB 5400 RPM Hard disk drive that's enough for a computer. This laptop also combines the Intel GMA 3150 graphics for films and light-weight gaming. The company says that a device gives around 13 hrs of battery lifetime.

Alternatively Asus Eee computer 1215T netbook includes 12 Hd Glare display with ATI Mobility Radeon High Definition 4250 graphics. The laptop is driven by a 1.7 GHz K125 NEO platform processor chip AMD Athlon II and it has 2 GB DDR3 800 RAM MEMORY. But it also provides a 320 GB Hard Disk Drive 5400 RPM  for storage. The company guarantees for a battery lifetime of 6 hrs.

These both laptops built with 3.0 Wireless bluetooth, 0.3 megapixel cam, 802.11 b/g/n Wi-Fi, 500 GB internet storage and also 6 cell battery pack. Asus also gives 1 year global guarantee for both the the netbooks.

Asus eee 1015pem picture

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Review on Pavilion HP dv6-3120u 15.6 inch Laptop computer

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With Pavilion HP dv6-3120us enjoyable Laptop computer, you can view DVDs on the 15.6 inch diagonal high-definition LED, in addition video chat in low light with built-in HP Web cam. Browse the Internet using the built-in WiFi plus the HP laptop computer synchronization to additional digital devices like smartphones or desktop computer, using the built-in Bluetooth. You may also a large number of data files in your hard disk for quick access.

The stylish superior HP Pavilion dv6-3120us Entertainment Laptop computer with HP Imprint finish using the design link in the champagne. Burn custom made labels on CDs and DVDs with LightScribe technology to move pictures from the memory into the HP notebook you're using digital media reader. Obtain powerful multitasking with AMD Turion processor chip and luxuriate in music in high quality audio. With built-in graphics ATI Mobility Radeon HD Video the game appears sharp, too.

HP Pavilion dv6-3120us Specification:

• Processor chip VISION Technology from AMD with AMD Turion™ II Dual Core Mobile Processor chip P540.
• Authentic Windows® 7 Home Quality 64-bit.
• 15.6″ diagonal High-Definition HP BrightView LED Screen (1366 x 768).
• Memory card (RAM) 4GB DDR3.
• 500GB (5400RPM) SATA with HP ProtectSmart Hard disk Protection.
• 5.35 lbs; 14.88″ x 9.65″ x 1.21″/1.37″.
• Battery Lifetime Around 5.25 hours.
• ATI Mobility Radeon™ HD 4250 Graphics with 128MB Screen Cache.
• Memory card with 128MB DDR3 (sideport memory) with around 2045MB overall graphics memory card.

Pavilion HP dv6-3120u picture

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Pavilion HP DV4-2160US 14.1 Inch Laptop computer Review

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Specifications: This is a competent well known laptop from HP. The 14.1-inch HP Pavilion DV4-2160US includes a 2.26Ghz Intel Core i5-430M processor chip. Additionally, it contains the brand new Turbo Boost Technology that will speed up the performance to approximately 2.53Ghz. Besides that, this laptop has 4GB of DDR3 RAM MEMORY (8GB Max), 320GB for storage and an Intel HD Graphics card (1696MB for graphics memory). There are a slew of some other features including a HDMI port, 8X DVD drive, memory card speaker, Altec Lansing speakers, a memory card reader plus a 14.1-inch HD display (1280 x 800). This type has Windows 7 Home Premium (64 bit).

Design: HP has chose to become a little more adventurous using the design of the HP Pavilion DV4-2160US. This laptop has an ‘HP Digital Plaid’ end that provides the laptop a kind of a textile fell to it. The exterior casing includes a high-gloss mocha finish and generally, has a really stylish and modern look. It is a full-size laptop, measuring at 13.15 x 9.45 x 1.34 inches as dimensions.  This weighs 5.2 pounds.

Features & Effectiveness: The HP Pavilion DV4-2160US is made to be a very competent processing platform, regardless of whether you plan to use it for really serious work or entertainment. A lot of the ports and connectors are placed on the side of the laptop and it also comes with a tiny remote control. Because of its beautiful HD screen, excellent set of stereo speakers, remote and excellent specifications, this laptop will make a fantastic choice for individuals who usually watch films or run a lot of media on their laptops. Overall, this laptop performs in addition to it looks and is all lead up with a realistic cost. In the time writing, the HP Pavilion DV4-2160US is selling for about $780 per unit.

Pavilion HP DV4-2160US picture

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The 70-Terabyte Homemade Computer

It may not be the world’s best looking homemade computer, but it could be one with the largest capacities, made by a Russian PC enthusiast it has a massive 70-terabytes of storage.

70-terabytes is enough storage space to to hold 70,000 movies of DVD quality or about 24 million songs, and it has a total of 60 hard drives and a custom cabinet with 40 fans to keep everything nice and cool.

I have no idea how much it cost to make, but I suspect it would be quite a bit, that is some serious storage, and would probably take the average user a lifetime to fill with data.

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Computer Boots Up and brings to the Welcome Screen and Freezes

Date Fixed : 04.10.10

Owner : Ms. Elain Rebutante

Processor : Intel 1.8 GHZ PGA

Motherboard : ECS P4-M800

Memory : 256 GB

Hard Disk Drive : Maxtor IDE 80 GB

Operating System : Win XP Sp 2

Technician : Drokz

URL : http://clhidohsr.blogspot.com

PROBLEM :

Boots up, then freezes at Windows Xp Welcome Screen. No keyboard response. System can only be shutdown by holding the power button for few seconds.

CLIENT REQUESTS:

Data Backup

Antivirus Installation

DVD RAM Installation

INTERVENING FACTORS:

ECS P4m800 Driver lost.

Possibly Defective Hard Disk ( Clicking sound in the hard drive when the system is turned on )

OBSERVATION :

- Upon turning on the system, the clicking sound of the hard disk is clearly audible. With that unusual sound, any technician can directly point out that it might be defective or most probably be causing the problem.

- As the system starts to show the Windows Welcome Screen, the system freezes and locks the keyboard.

TROUBLESHOOTING PROCEDURE

- First, we need to check if the hard disk is the peripheral that is failing. It is quite obvious that the internal clicking sound indicates a mechanical inconsistency. So I removed the hard disk and restarted the system (computer) to see if the error is really related to that of the hard drive or might be the other failing failing peripherals.

- But upon restarting, the system stalled on POST. The hard disk might not be the cause of the problem.

- So I opened the side cover of the system unit and check for blown or leaking capacitors on the motherboard because these capacitors when they malfunction gives the same problem as observed - system stalling or not no booting up at all. But as I have checked on the mobo, there seemed to be no blown or leaky capacitors. So I decided to check the other peripheral that has capacitors in it - the Power Supply Unit.

- I then removed the Power Supply from the system case. And as I opened the Power Supply Unit, I saw 3 blown capacitors! The Power Supply is practically to be replaced. It is not advisable to replace the capacitors in the Power Supply Unit for it might contribute a chain of troubles to the rest of the components of your computer including primarily your motherboard, hard disk, and your precious CPU.

- An hour after, the requested power supply arrived. After installing the new power supply, the system was turned on and it did not stall at all. It continued the Power on Self Test (POST) and seeks for a bootable disk! At last we found the culprit. I then will try to check the Hard Disk if it is still functional.

- The hard disk drive was then installed back and restarted the system unit. Not a surprise to me, there was an error indicating a disk scan or a scheduled check disk. The hard drive needs to be restored, this might be due to the defective power supply, it already affected the hard disk and should not be long enough be replaced immediately.

-So I turned off the system, installed her new DVD RAM and then run the XP SP2 cd to restore the installed XP Operating System of her computer. ( Restoring the XP OS in not yet covered in tis tutorial - you may ask for information thru commenting here and you will get your answers via email - we will discuss your problem in this blog so others may learn also. :-] )

- After the Operating System restoration, the system works just as fine but I recommended Ms. Elain to buy a new hard disk for her computer. The hard disk will fail any sooner.

REPORT:

- Stalling / Freezing on Welcome screen or on Power on Self Test (POST) was contributed by the defective power supply unit - which in the case of Ms. Elain's Computer, it was replaced.

- A defective Power Supply corrupts an Operating System ( Win XP ) , and even worse your Hard Disk Drive.

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An IBM 6790KBM Computer Constantly Restarts on Boot

An IBM 6790KBM computer restarts after showing the Win XP bootscreen and also briefly shows the memory dump error or commonly called the Blue Screen of Death or the BSOD. It was handed to us but the system unit was already been tried to be fixed by another technician. We then asked the computer technician on what problems did he encounter and the fixes he has done. The computer technician said that he was suspecting the following components to be defective and has taken some actions or fixes.

a. RAM or its DIMM Slots

- He checked each of the RAMs in binary method. One RAM after the other tried on each DIMM slot.

b. Video Card

- The Video Card has also been suspected because it shows trashy video sometimes.

c. Motherboard

- The Computer technician said that he checked and tested the RAMs and the Video Card on another system and were just working fine. So he suspected that the motherboard is failing.

d. The Processor???

- Yup, he suspected the processor. That could be quite impossible considering that the computer has display and bios configuration could be accessed. What must he be thinking then.

e. The Power Supply Unit (PSU)

- I asked the technician earlier before I accepted this job that did he check the power supply. He said no, because everything seems fine and working.

Those were the Computer Technician's suspicion and I need to check it myself rather than resting my computer troubleshooting skills on his observations.

Date Fixed : August 27, 2010

Problem : IBM 6790-KBM computer will restart after showing the win xp boot screen and briefly stalls showing the memory dump error or the Blue Screen of Death or BSOD then restarts.

Owner : I dont know. The Computer Technician handed it to me.

Motherboard : IBM 6790KBM 1.5 Ghz Processor

Operating System : Win XP SP 2

Technician : Drokz

URLs: clhidohsr.blogspot.com clhidohardware.blogspot.com

INTERVENING FACTORS

- Computer needs to be fixed in a day

OBSERVATIONS

- Intermittent restarts on boot up attempt

- Has power, has video, shows POST, boot attempts then crashes and restarts.

TROUBLESHOOTING PROCEDURES

***** please turn off the avr and unplugged the power cord if you'll replace and test any peripheral in a system *****

- Since it has display and shows the POST, we should check the RAMs if they are working right. To do this, disconnect all the data cables, the power connectors to the drive and the peripheral cards.

- The computer is installed with two RAMs so we need to check each RAM on every DIMM slot. After swapping each of the RAMs on the DIMM slots, we found out that DIMM slot 1 and the other RAM is defective. How was it determined? On POST. The Computer boots up so slow when the other RAM is inserted. And also if the good RAM is inserted in DIMM slot 1, it stalls the computer on POST. Use the binary method in testing the RAM.

- We already determined that one of the RAMs and DIMM slot 1 are defective and been eliminated (RAM removed, DIMM slot unused), it did not solve the problem at all. So its time to check the disconnected peripheral if which is failing. So we started checking with the hard drive.

- We connected the Hard Disk Drive and tried booting up the system. It looked good at first because the POST was relatively faster. But on XP's boot up screen, it still stalled and briefly show BSOD then restarted. We then assumed that this could be an OS problem but I suggested that the PSU must be checked.

- So we opened the PSU and found no physical evidence of defective components. But our suspicion on the PSU still persisted so we tried another good PSU and the system booted up successfully! We finally got the system running well. The tested good PSU was rated at 400 W, could it be that the older PSU can't fully sustain the power that the IBM consumes? The system is now running fine after some RAM , cable and connector checks.

SUMMARY :

- The IBM 6790KBM computer had a failing DIMM slot 1 and one of the RAMs is found to be defective. But removing the defective RAM and leaving the DIMM slot 1 unused didn't solve the problem but significantly made the computer run better.

- The PSU was then founded out to cause the boot-restart problem. This intermittent and stubborn problem was caused by the Power Supply Unit and has been replaced. The system is now up and running fine.

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Computer Troubleshooting Safety Precautions

There is no such thing as effective troubleshooting if safety has not been met. The effectiveness of the troubleshooting comes only if there are no injuries, tool and equipment failure due to mishandling, peripheral malfunction due to misdiagnoses and mishandling and other things that marks the big 7-letter word - FAILURE . So what should you do to be able to do "Effective Troubleshooting" ? Follow the three most important things below to find out how and what to learn!

#1 What you wear might save you!

Yes you did not read it wrong. What you wear really matters specially if we are dealing with safety. In big companies, overall uniforms, laboratory gowns and technicians' gown are required to be worn in their work areas. As freelance technicians, we don't strictly follow company protocols but at least we must ensure safety through using proper clothing.

What is appropriate for every computer technician to wear are clothings that won't catch fire fast like cotton. Nylon clothes should be avoided. One must also wear clothes with shorter sleeves to keep the connectors and other things in the system unit from clinging to your clothing. Buttoned shirts and clothing with dangling laces or similar should not be worn during computer troubleshooting.

Please don't use very loose clothes like the hip hop crews wear, rings, necklaces, dangling earrings, bracelets, and similar objects as well.

#2 Electro-Static Discharge is not your bestfriend

ESD is a form of electricity that can wreck havoc to your computer peripherals or its components. How do you get ESD's? Just everywhere, upon walking when you rub your shoe against a carpet, or combing your hair or just anything you rub against or touch. To be able to avoid damaging your computer system unit, you must discharge the ESD by using the ESD Wrist Strap while working with your computer.

But what if you don't have any ESD Wrist Strap? Don't worry before opening up your unplugged computer system, touch any unpainted portions of the system unit for a few seconds. This can significantly dissipate the ESD that you have in your body. Also consider using Anti-Static Mat while working your your computer to ensure safety against Static Electricity. But again, grounding yourself to the computer's chassis is enough to drain off the ESD's.

Since ESD's can damage computer peripherals and components, it is best to store your removed components and peripherals in Anti-Static Bags.

#3 Working Safely with Electricity

Whether your home outlet is 110 or 220 volts Alternating Current (AC), it can potentially kill you. But before working safely with the insides of your computer, let us be familiar first with the outsides of the computer.

In powerlines, the electricity that flows through the lines are not perfectly stable. The voltage may rise and fall and this action of the unstable voltage is called a voltage spike. Though most devices can operate even with voltage spikes, your computer cannot endure this spikes. What your computer eats is a stable supply of electrical current. The Automatic Voltage Regulator (AVR) does this job. It regulates or flattens out the AC flow of electricity to be fed to your computer. After the AVR, your computer receives the regulated 110 or 220 V AC electricity into your Power Supply Unit (PSU) and converts it into Direct Current (DC) like 12, 5, and 3.3 V respectively.

Whew! that was quite technical - we're technicians remember ey? Hehehe! So we have in mind that the electricity we get from the outlet is 110 or 220 V unregulated and as it passes though the AVR it is still 110 or 220 V but the spikes are now removed - and still dangerous. As the electricity from the AVR is received by the PSU, it is converted to DC and is now less dangerous. In other words if you are working with your computer, turn off your system unit and unplug the power cord from the AVR. If you might say that the DC current of the motherboard is small and can not cause you harm, consider that the components of your computer are sensitive to electrical shortages.

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Computer Safety Do and No List

Do's

- Wear anti-ESD Wrist Strap and if there is none, drain off the ESD by touching the unpainted part of your system unit. ESD's are known to destroy discrete devices like your RAM, BIOS, Chipsets and other components of your motherboard. So take this precaution seriously.

- Wear proper clothing. Use cotton and short-sleeved clothes during work. If ever the computer your working on catches fire, cotton most likely better resist burning than nylon clothes.

- Turn off the system unit and unplug the power cord from the AVR everytime you will be working with your computer. Keep in mind that there is a constant 5 volts DC electricity even if your computer is turned off with cords unplugged and AVR not turned off.

- Keep screws together. If some screws unintentionally goes on the motherboard, that will be disastrous! Short circuit will likely be a big possibility if screws or other similar small metallic objects are misplaced. It is best to keep a small canister to contain the screws or just put the screws back where they were taken.

- Clean your tools and equipment before and after use. Take care of your tools because they will also take good care of you. Tools and equipment in good condition lessens accident.

- Clean your system unit before fixing it.

- Fix your computer if it is broken. Yes, don't assume that the computer is broken lest you're sure it really is. You might add up or make the problem yourself rather than to fix it.

- Backup files and drivers before anything else. Files costs millions of dollars to other clients. Our main concern before everything else is our clients' files. Fixing the hardware part of the computer is just next to saving and retrieving the files that the computer may contain. So always prepare a large backup media for your clients.

- Have a documentation on each computer being fixed. A documentation will be your personal troubleshooting database. This will be a handy future troubleshooting reference. Your documentation will also serve as your guide as you go on with your troubleshooting.

- Do make use of the comfort of time in computer troubleshooting. Do not be in a hurry when fixing a computer. If you can't finish the fix on that day, let the day pass and fix it by the morning. Mistakes occur because of distraction and of the lack of concentration. So slow down cowboy and fix that computer slow and accurate.

No's!

- Forgetting everything with the Do's and leaving the brain on the bed while working. Just remember all those Computer Safety Do's and I assure you, you'll never have to remember the No's.

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Passing Computer Hardware Servicing NC II Examination

Do I need to pass TESDA's Computer Hardware Servicing NC II Certification Exam?

Passing TESDA’s Computer Hardware Servicing NC II Assessment Examination is really not necessary. But if you are aspiring to work abroad, consider your computer hardware servicing certification as your main portfolio. Countries abroad are strict regarding the quality of workers they hire and the only way for them to be able to screen the employees effectively is to ask for a certification. Most foreign employers really prefer potential employees to be at least NC II passers.

And if you are planning to have your own computer servicing shop and be your own boss, you are still required to have TESDA’s Computer Hardware Servicing NC II certification before you can be issued with a business permit. So take TESDA’s Computer Hardware Servicing NC II Assessment examination as soon as possible and start building your future with fixing computers.

Is it true that TESDA’s examination is obsolete and mechanical?

Many passers years and months ago said the examination were just similar. This has risen some issues regarding the quality of the recent passers of the computer hardware servicing assessment examinations. But in my experience, I should say they are right but not accurately correct. It maybe because they have the same test package as what we had. But it doesn’t mean that the examinations are really identical, it also differs a lot because each batch of examiness and from the different assessment centers have different Assessors. But anyway, TESDA has announced to update their test package on the first quarter of 2011.

Here are the different areas of the test package that were given to us April 2009 by which is yet the same until December 2010.

Occupational Health and Safety Precautions
- Observe this throughout the examination

System Unit Assembly and Disassembly

NT Commands (not true DOS)
- For Win 98 Installation

WIN XP Installation
- Installation of XP in other partition aside from C:

Dual OS Installation (had Win 98 and XP SP 2)

Partition Sizes and Software Installation

Theoretical Questions both written and oral
- You will be asked about identification and functions of the system unit peripherals and components, troubleshooting techniques and approaches.

Mock Troubleshooting
- You will be given an intentionally defective system then you try to diagnose it

Networking
- You creating a LAN then share a printer.

Documentation
- As the name imply, you will be writing down all the things you did during the assessment.

Report
- Make a summary of the entire assessment.

What does it take to be a Certified Computer Hardware Servicing Technician?

During the examination, safety must be observed. There were also written examinations on computer theory and safety. It is also best if you will be bringing your own safety gears and equipment, tools, installers, and a notebook for documentation. Some troubleshooting in the past may also provide you better chances in passing the assessment.

My expression or thoughts here is not that of TESDA’s and the tips given above is to provide help for students, businessmen, or already established computer hardware servicing technicians wanting to have a TESDA Centification in Computer Hardware Servicing NC II.

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Computer Restart After a Few Minutes of Operation

Computer troubleshooting is sometimes confusing and costs you a lot of time. But with the help of this computer troubleshooting guide; you will be able to learn basic computer repair, troubleshoot computer hardware problems and many other basic computer repair tutorial provided with this blog.

In this troubleshooting example, an ASUS P5PE-VM has having problems with constant restart some few minutes after being turned on. Basing on the past computer troubleshooting experience, this is attributed to the overheating of the CPU or the Video Card. But there was no video card and as I have checked on the BIOS hardware monitor, the system voltage, motherboard temperature, and CPU temperature, everything seems just fine. And to add more problem, the hard drive has farmed with a lot of computer virus through mp3 downloads via torrent. But one thing I have noticed is that if I just leave the machine running without opening any application, the computer doesn't restart. And if I try to open a memory and cpu intensive application like a game or movie maker, the system shuts down. That leaves me to suspect the RAM or CPU to be failing.



Date Fixed : November 11, 2003


Problem : Computer restarts after a few minutes of operation


Owner : Ms. Luna (PESO Office, Dumageuete)
Motherboard : ASUS P5PE-VM
Operating System : Win Xp Sp2


Technician : drokz
Weblog : http://clhidohsr.blogspot.com


INTERVENING FACTORS :

- No motherboard support cd
- HDD is infested with many variants of virus


OBSERVATIONS :

- Boots normally and everything seems fine
- Computer restarts if a RAM or CPU intensive application is being run


TROUBLESHOOTING PROCEDURE :

- Before doing anything, safety must be a primary concern. Be sure to turn off the AVR and unplug the power cord from the system unit before opening or handling it. Be sure not to wear any metallic objects on your body. Drain off ESD by touching the unpainted part of your system unit chassis for a minute before opening the side cover of your computer.

- Based on our previous observation, we know that the computer boots fine but only restarts when we try to open an application that is RAM or CPU intensive. This signifies that either the two peripherals when pushed too hard will cause the whole system to function. And with this type of error, video card or CPU is likely overheating. But again, there was no video card so it is least to be suspected.

- Since I have suspected the CPU to be overheating, we need to check first if the CPU heatsink fan is spinning normally. So open the side cover and flip the open side up, turn on the system unit and try to see and feel if the CPU fan speed is normal. But as I have checked, it seemed just normal so I need to check it in the BIOS to verify that there is a less possibility of an overheating CPU.

- Restarted the computer and pressed "del" (some are to press F2 to access BIOS settings), chose hardware monitor to check for voltage abnormality or motherboard and CPU overheating. But I found the voltage normal and the temperature on both the motherboard and CPU is even below normal. CPU overheating is not the most possible cause of the problem.

- I could not directly point that the RAM is failing because it has handled and passed initial memory test at POST. The operating must be corrupted due to virus infection and it is not out of the possibility. So I tried to backup the files but I always get an error message. This must be due to the effects of the virus infection.

- To copy the files needed, Mini Xp was used to boot up the computer and run unstoppable copier and finally got the files needed for backup. After the successful backup, we are now ready to re-install the operating system.

- As the boot sequence was configured in the BIOS and restarted the computer, Xp installation began. But a few minutes on the process of installation, there was a Blue Screen of Death or a Memory Dump Error. Bang! That's it, it could either be a Hard Disk or a RAM error. Since checking the RAM is easier as to check the Hard Disk, we can easily do so by replacing the peripheral with a known good one.

- The computer was turned off then had the RAM removed, replaced it with a known good RAM then retried installing Win Xp. Not with a big surprise, the installation continued. The RAM must be the one causing the problem. To verify this, all necessary software must be installed and test run every applications.

- Appropriate device drivers using a driver pack, Win Office 2007, VLC, Google Chrome, and other essential programs and utilities where installed. Had some games and RAM or CPU intensive applications opened but the computer just ran fine. The RAM has caused the problem. I reported to the system unit's owner that the RAM is defective and a few days later, she bought and had the RAM installed. Also, the backup files were virus scanned and copied back to her drive.


SUMMARY :

- Troubleshooting intermittent problems are one of the hardest computer problem to troubleshoot. As for our troubleshooting tutorial via example was, a sudden restart is not entirely caused by a video card or CPU failing or overheating. As for this experience, the RAM has caused the problem.

This computer troubleshooting tutorial has been tailored to let readers imagine and think how the actual computer troubleshooting really works. If you think there is a better way for you to learn, then let us know. :-)

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Knowing the drivers on the computer

type="html">On an operating system, hardware can not work without the drivers, for example on a computer that has been installed as a music player and can play music the way but made no sound, the problem here is that it does not sound drivers installed, as well as on other devices sometimes a hardware device can not work with the maximum, because the hardware generally requires an abstraction that is because the device makers are always releasing new models that provide better reliability, so for that we must constantly update its drivers.

If we see the explanation above, perhaps there is a question especially for a novice driver What was it? Driver or device driver is a software component that allows an operating system to communicate with hard, in general, an operating system will not work at all without the driver installed.



Drivers themselves can easily be obtained from the internet from the windows drivers to compter drivers. Internet is helping us in finding a diver for the drivers because the developers made a lot of drivers include those in which they have a website as an example is the site http://www.driveraccess.com

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