newbie needs help with dead MB/CPU

[skohlmey]

My system has been running fine (24x7) for almost 2 years. Now it won't boot - even into the BIOS? Any suggestions to help or debug this would be appreciated.
MB: Intel D875PBZLK
CPU: P4 3.0E
RAM: 1GB Kingston DDR PC3200
PS: Seasonic S12-500W (about 1 year old)

The Long story:
I brought the system down to replace a bad HD in the MB-builtin SATA raid (mirror). I had it down for about a week while the replacement drive was shipped. I installed the new drive, turned it on and all I got was power, fans, and nothing else. In an attempt to isolate the problem, I removed everything from the MB (1 piece at a time) except the CPU and the video card. The system never seems to enter BIOS. There are no "beep" error messages (even with the memory removed). This is the only system I have ever built. And it is the first time I have had serious problems. It seems to me that it must be an issue with the CPU or MB.

Thanks

 

[sirheck]

just for shits and giggles try reinstalling the o.s.

try that before buying anything

edit; that is if you can get back into bios

 

[aequalsb]

No bios, no beeps huh. How about the keyboard number lock, mouse light (if optical)?

Maybe some dust got moved around on the mb and is shorting something. Did you give it a good blow off?

Perhaps you could try just putting the windows cd in. If everything works good it should try to boot off cd. I wouldn't wipe your system yet tho.

 

[skohlmey]

Keyboard and mouse are also dead. I will try cleaning it. It doesn't look too dirty. But at this point I am ready to do secret incantations.

 

[skohlmey]

Secret incantations didn't work. Neither did cleaning or swapping PSUs or video cards. Since the MB doesn't complain when it tries to start without a CPU or memory, it seems very likely that the MB is fried. I opened a RMA with Intel and they are shipping me a replacement board.

 

[skohlmey]

Update: I installed the replacement MB sent by Intel (fast service!) and it fixed the problem. I had a little trouble getting it to boot from the HD but I eventually got it working. Thanks for all the tips in this thread and many others that helped me dubug the issue.