Is it my motherboard or my processer that's fucking up shit?

Here's the problem.

I've been having some trouble with my computer:

Athlon XP 1800+
ECS K7S5A Motherboard (ugh)
512MB PC2100 Samsung DDR
GeForce 3 64MB
OEM Sound Blaster Audigy

Basically, very recently, my computer started rebooting itself all the time. A change to Windows sytem settings to allow me to see the bluescreens showed the problem to be ntoskrnl.exe or win32k.sys. After trying all possible driver combinations and formatting twice to no avail, I decided the problem may have been with the memory so I ran Microsoft's memory test on Extended Tests for two hours. No errors.

So, I went into the BIOS and changed the timing modes from 133/133 to 100/100, effectively limiting my processer speed to 1100mHz and my RAM speed to something to match that. That worked for a while and I was running Windows somewhat stable... I only crashed twice in a day. Since the speed changes didn't FIX the problem, I figured I could just change the speeds to 133/133 again and deal with some crashing until I ironed out the problem.

However, after rebooting to change the settings, I noticed that I didn't get a POST message or anything. In fact, my system won't even beep. However, everything that's plugged in does get power or lights up. The CD-ROM drives alternate between being lit up and not being lit up. I tried unplugging everything except the bare essentials but I still can't get a beep on boot, even though it's clear everything is getting power. The heatsink fan, the case fans, the whole shindig. So, like I asked in the topic, is there any way I can tell if the problem is related to my motherboard or to my processer?

There really isn't any way to tell for absolute certain if it's a board or processor problem without adding another board or processor into the mix. If you have an old processor, give that a try.

My money would be on it being the board, though. Check for any problems on the board itself. Leaking capacitors. Discolorations. Melted PCB around the VRM (*coughECS*cough*)

Thanks, if I can't find another processer I guess I can just buy another Mobo/CPU combo.

Couldn't it also be the PSU? Also, do you get a video feed at all? I'm having a similar problem, so now I'm wondering if it's my PSU. It had been making weird noises lately, and noticed my PC had rebooted itself somehow when I came home one day. I believe a constantly rebooting PC typically indicates a bad PSU.

Almost definitely: ECS K7S5A Motherboard (ugh)

Other possibilities: Is the fan failing on any heatsinks.

Less likely: power supply