Identical AMD athlon PCs lock up

February 9, 2009 at 15:18:31
Specs: Windows XP Home, AMD Athlon 2.5 1 GB ram

I have 2 AMD Athlon computers that were bought at the same time for the same vendor at a computer show. Both systems have identical components when assmebled. Both had PNY 64 Video card, on board sound with asus motherboard. Both had 40m Maxtor hard drive. Both were loaded with OEM windows XP home addition. These systems were built in 2005. In the last year both systems have been freezing up. I have one PC my daughter has the other. I have replaced the hard drive, video card, updateed bios, replaced ram chip. THe power supply is new, its a 420Watt unit. I have completely loaded new hard drive with the original windows XP home addition. Ther are multiple fans in the system. The core temp of the processor is 42c. You turn on the computer and it opearates fine. Mine with the updated hardware and the clone with original configuration. You can operate the system for a long period of time but it will freeze. Does not mater what your doing. Using excel. doing email. on the internet. playing solitair. If you let the Pc run and the screen saver comes on it will work fine but sometimes freezex. MY PC has all the XP updates. My daughters doesnt. THe ony thing that the 2 PCs have in common is the motherboard, Ram, and AMD processor. I am stumped as to why both systems have the same exact problem. I have done all of the recomended test like ram check. disabling L1 or L2 cash to see if its mother board or processor on my PC. I somehow think its someting to do with the XP home additon and mabe an earlier update that both PCs received. I hope this is enough info. I really do not want to invest in vista and have the same issues. Any sugestions other the trashing the PC will be appriciated.

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February 9, 2009 at 16:15:21
Look at the capacitors on the motherboard(s), if there is brown stuff instead of silver on top of any of the capacitors, they are leaking.

Was (is?) quite common for quite a while back when those systems were assembled.

I had to have my motherboard replaced shortly after I bought my pc, luckily it was under warranty when I noticed the leaky capacitor.

Capacitor plague - Wikipedia, the free encyclopedia

"Doin' right ain't got no end." Cap'n Red Legs

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February 9, 2009 at 16:28:11
See event viewer logs and maybe dump files. See also perfmon for memory leaks or other fails.

Run memtest or other diag suite.

I used to do debug for a computer maker for a while some time back. You would be suprised how fragile a system is. Most times major issues would be found on OS changes or OS versions. For example, a motherboard would work for years on a version of an OS. The next OS or even updates would cause the board to fail. Most times a firmware chip or clock change fixed the issue. Sometimes we had to add or delete parts and connections to get it working. This may have affected hundreds or thousands of boards. Sometimes it was a component that may have passed for that OS, just didn't work for the next OS.

"Best Practices", Event viewer, host file, perfmon, antivirus, anti-spyware, Live CD's, backups, are in my top 10

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