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Cpu upgrade

  • CPUs
  • Boot
  • CMOS
Last response: in CPUs
May 12, 2009 4:51:59 AM

I have the p5n-e sli with a 2.33 GHZ core 2 duo cpu.I installed the E8400 3 GHZ and it would not boot, message said something about the cmos.I fallowed the instructions on flashing the cmos and the pc sees 3 GHZ on boot but will not boot. could use help getting the 3gig cpu working on this mobo

More about : cpu upgrade

a b à CPUs
May 12, 2009 6:30:08 AM

It's possible your new processor requires more power than your power supply can provide? What is your current PSU?
a b à CPUs
May 12, 2009 6:45:29 AM

Is your BIOS updated? The e8400 wasn't even around when your motherboard was originally built, if you haven't updated, your motherboard won't properly support the CPU.

Go here and fill in the blanks, select your OS, and then look over the BIOS updates. There's one for that mobo dated 4/28/2009, so odds are you don't have the most up-to-date version on your system.
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May 12, 2009 6:45:40 AM

could be the psu..
a b à CPUs
May 12, 2009 2:49:05 PM

I'd check the BIOS first. I would think it would at least boot to the OS. The PSU tends to crap out on high loads.
May 14, 2009 4:01:18 PM

I hope not the power I had just installed a 750watt for the bios should I use the windows update or the dos as instructed in my manual,I dont have a floppy drive for the dos update
May 14, 2009 4:08:18 PM

you don't need a floppy drive to update your bios. follow the instructions. it is very easy