quad core shows 2 cores at post ??

Hi all..

I have a 'q6600' cpu and an 'Asus P5E-VM HDMI' mobo,
8gb (4x2gb) Corsair 6400 c5 DHX ddr2 ram,
NVIDIA GeForce 8800 GT 512mb graphocs card.

At stock speeds my post screen shows (2.41ghz count 4)
being 4 cores I believe..

At 1st overclock it shows (3.01ghz count 4 )
At 2nd overclock it shows (3.57ghz count 2 )...!!

Why would it show only '2' instead of '4' ??

The overclock appears stable on air (arctic freezer pro 7),
I ran Prime 95 for 10 hours no problems core temps topped out at 68 deg.

Is this just an anomaly in the post screen OR an I only o/c'ing 2 cores?

Any help or explination would be very helpfull.

Many thanks..:confused

 

oh, I thought it was high but read other sites saying 70 degrees under 100% load is ok???

I am sure your right as I trust the people on major geeks for soild advice.

Many thanks scylla I will look into better cooling..

Any suggestions?

 

Have to agree 68 for prolonged periods may permanently damage something. You obviously just using the OC profiles withn BIOS and unless you have a good understanding of OCing, how to monitor it correctly (temps, volts, etc), DRAM:FSB ratios etc etc you are probably going to damage or fry some hardware.

The Prime95 alone should have indicated how many cores were being tested!

Do some reading.

 

Are you limited to 2 cores in windows? Or does the 2 core bug only happen in the bios?
I agree, you have some pretty serious cooling problems from the sound of it I would hold off on overclocking till you can get your temps under control.

As far as I know prime95 is single threaded only. So it can only see/test one core.

 

Well the last time I used it it would show all 4 cores (or the number of cores) being tested. Personally I use OCCT for my testing as I find it a lot more informative showing all cores, temp, volts etc and let's you see vDroop and ripples (generally good indicators of stability as well as temps).

 

My bad ACE I was using Prime95 x64 bit edition which does show all cores (a.k.a threads). I assume the 32bit doesn't do this?

OCCT will test each core and imho is the best stability tester which picks up issues many other won't in a lot shorter time.

OCCT 3.1.0

Has all the onboard monitoring you could use as well.

 

I didn't know there was a x64 version of prime. I prefer S&M myself. Never heard of OCCT might have to give it a try.

 

if i remember right, there was a similar program but it was called.... CPUBURN.

Loads the cpu's as heavily as it can to heat them up and stress them.