Hardware/software: 400w power supply, asus p4s533, crucial 512 mb ddr 2100 ram, intel p4 2.0a , nvidia 128mb ti4200, soundblaster audigy, western digital 80 gb hdd, liteon cdr, xp pro.

Computer previously worked. On boot, monitor appears to receive no signal, and the asus talkback/speach report feature loops the phrase "system failed memory test". What are possible sources for this problem?

I havent had a chance to troubleshoot it yet, but find it suprising i received that error because I've ran and passed memtest many times in the last few m onths, although i guess its posssible it somehow croaked last 2 or 3 weeks sometime? Last time it was on Comp was acting weird. IE Explorer windows would keep hanging, and when i minimized programs the image stayed up on screen even after ctrl alt del to end them. I updated anti virus and full scan that passed fine so i turned off computer, and woke up to this, ironicly also friday the 13th lol.
-Dan

I would start with the following:
[NOTE:] When clearing CMOS, remove power, and press power button to discharge motherboard.

1) Clear CMOS. If it boots, then go into CMOS and load setup defaults
2) Remove all cables and extra PCI cards. Only run Power Sup., Vid card, Proc., Memory, MoBo. Clear CMOS. If powers, add one card/cable at a time and see where it stops. If it doesn't power, proceed to step 3.
3) Place the mem. chip in another slot. Test. If more than one stick, try one at a time in different slots.
4) Try different Vid card.
5) Try separate power supply
6) Check Proc. (Too much thermal grease, smoke smell, cracked edges)
7) Remove MoBo from case. Look for burn marks. If you know what you are doing, try running step 2 without the case to see if it posts.

Did I miss anything? Please add if you think of anything.

Bug

How about, instead of going through such a hassle as all that Bug said, just try reseating your memory?

Sorry. Guess I should have stated: Try one step at a time and test to see if it posts. The steps do not have to go in any order and step 3 could be tried first. I placed them in order I would complete them, which certaintly may not be the most logical.

Bug

Thanks. I think I fixed it. I've tested the ram in the past with mem test, but did it a few times again to make sure, it passed the first few tests, but on the 3rd time around it finally failed. i put new ram in, problem persisted, cleared cmos, bingo. Thanks.