nothing on screen - need help - URGENT
OK here's a quick recap. I swapped out the stock heatsink/fan that came with my P4, and booted up fine, a few degrees cooler. Rebooted into bios to make sure everything was the same, and noticed my sdram speed was set to 266, instead of 400 like it should be, give the DDR400 and 800 FSB P4. I also set the AGP aperture to 128 MB, since I recently upgraded to a Radeon 9600. Exit saving changes > restarts. No beeps, no errors, just a blank screen and everything spinning away as it should. I tried swapping in my old Radeon 9000 to see if maybe the vid card was fried, and still nothing. I have a feeling if I can get back into the bios and reset everything to how it was, that may help. BUT, without a screen, I'm not able to know if i'm in the bios, and needless to say, work my way around.
On a side note, this happened earlier today and I will able to unhook my dell 24" lcd, and switch to my old crt and i got a visual. now that doesn't even work.
Does anyone have any advice? Thanks in advance. - Richard