ASUS P5K-E/WIFI-AP showing E8400 as 2.4 on reboot

I've got a ASUS P5K-E/WIFI-AP and every now and then when I reboot the first bios screen shows my E8400 which is stock 3.0 as 2.4 until I shut down my system and restart it usually it'll show it as 3.0 .

Has anyone had this happen? IS there an easy fix, I've got the newest firmware on my motherboard, I haven't overclocked any ram or my cpu. Everything is stable when the system is running at 3.0 as it should.

 

Did you check the motherboard specifications to see if the motherboard was ever designed to run that processor, even with the BIOS flash (you did flash the BIOS right?)

 

I flashed my bios correctly, my mobo is 100% compatable with the processor, upon googling this problem I haven't found anything useful except I've found alot of people that have had great luck using this combination in OCing, and well I just want the normal 3.0 all the time nothing more. The bios flashed worked 100% also.

 

Normally the CPUs clock speed changes according to the multiplier. If you look at CPU-Z for example the clock speed changes from time to time. Only when you run something that stresses the CPU the clock speed is to the max.

I'm not sure but could this be the case in the BIOS screen as well?
Do this: next time it boots showing 2.4GHz, go to Windows and start CPU-Z. Run some heavey programs in the background and observe the clock speed. If it maxes to 3.0GHz, then everything should be ok and it is just a matter of displaying information in different situations.

 

I shall try that, its just really odd that it says 3.0 on boot MOST times and then 2.4 whenever I reboot, I've heard about Intel somethign step but I didn't think it would make the CPU think it was 2.4 in the bios and all the bios cpu info screens.

I'll try that out though next time it happens.

 

I just turned of C1E in bios AND Speedstep in bios and STILL the damn thing wants to be 2.4 sometimes on boot.

Is there a way to test the CPU w/o stressing it too much? Just a simple diagnostic?

 

Try CPU-Z while running some programs and post what happens.

 

CPU-Z shows it as 3017 MHz so why does bios and the system info in windows say otherwise? Which one is the real reading?
I've attached a dump from CPU-Z if you want to have a look at that.

 

It's the multiplier that adjusts the processor speed.
I figured BIOS might show the adjusted rate as well. Not sure though. However it seems to max at 3.0GHz, so everything is alright?

 

I would trust cpu-z, it seems to be reading the current clock speeds.

 

I think so, thank you for your help!