This is the first computer that I have put together and I can't figure it out. Everything is connected together correctly but it restarts randomly. The cpu fan and psu fan stay on during the restart. The components are:
Check in the bios the CPU temp. If t hitting 50 c or higher the CPU cooler not on right. In the bios check that the mb bios file is the newest one. Look on mb vendor web page under bios and see if the number in the bios is he same on there web page. The bios file going have updated CPU and ram code. The last is a doggy power supply.
I've run memtest86 and the ram checks out okay. When I try to get into the BIOS it just restarts, it won't even let me see anything. It pops up for a couple frames and then the comp just restarts again.
EDIT. To elaborate on the BIOS problem, when I enter the BIOS I can see the first page but as soon as I make a keystroke or mouse the mouse the screen stops receiving input from the computer.
Might try a CMOS reset to take everything to defaults and see if that will let you in and/or clear things up, might have had a power spike that screwed things up, can do the reset with the CMOS jumper or quicker, just unplug, pull the mobo battery out for about 15-20 seconds and reinstall, plug in and boot.
Look on the CMOS chip on the mb. For the bios rev of the mb. Check it with the mb vendor to see if it post your CPU. Try another power supply and check that the CPU heat sink on right. You have a power or heat issue.
No problem, these things happen...and when they do many lose their cool a bit, next time (hopefully never) something like this happens you'll be better prepared...Used to do 100+ builds a year and things like this drive you crazy, have cut back to 1 a week or so on average and try and spend more time on other things like networking and my other business