Computer will not show BIOS

[matt_to_the_max]

Hello,
I am working on a Dell Optiplex GX240. When I power on the pc, the dell logo doesn't display, the display is blank for a minute or two then it shows Windows XP with the status bar and then goes to a BSOD. So, I would like to reformat the computer but I can't since I can't see the BIOS, I pressed f2 to get to it and it doesn't do anything. I reset the BIOS that didn't help. I pressed f8 and the advanced windows menu didn't show, so I can't boot into safe mode either. I tested the motherboard by pulling out the ram and it produced error codes so I know the motherboard works, but for some reason the Dell screen will not show on start up and I can't get to the BIOS. What else should I try?

Thanks,
Matt

 

[lowteckh]

DEL

 

[Version_3]

Clear the CMOS, but you already tried that it seems.

Try other key combo's, Del, F12, etc. Also try without a KB or mouse connected.

 

[daytripper67mi]

well my old dell if you unplug the cpu fan (i use an aftermarket fan that plugs into regular molex)i get a warning about fan failure,then it says f1 to continue or f2 to enter setup.