Question : Problem: Bad Processor or Memory?

I am working on a system that will not load XP.  The system started freezing at the xp splash screen then the video went crazy.  I started troubleshooting.  I found that the CPU was overheating (AMD Processor).  I resolved the heat issue and then tried to reload XP.  It kept giving me an atapi error when I told it to format, so I installed a new cd drive.  That did not resolve the issue.  I tested the Power supply and it shows ok.  I tried different memory configurations (1 stick , 2 sticks, reverse slots...etc.).  Windows XP finally loaded last night but it took 8 hours.  I do not have enough parts to swap each one.  I ran various diagnostics on the ram and cpu.  The ram would pass some tests, but not all.  I did not know if a bad CPU could make the ram fail tests.  Any suggestions?  I suspect a bad processor or possibly a fluctuating power supply (although it tested ok).  Thanks in advance for any help!

Answer : Problem: Bad Processor or Memory?

If you have CPU problem, the system might not boot. Check the motherboard for bad caps

http://www.badcaps.net/pages.php?vid=5

http://en.wikipedia.org/wiki/Capacitor_plague

And it seems the memory faulty. Use one stick and test see if it pass.