E8400 Temps on P5K-Premium

I'm seeing some strange #'s on coretemp on my board (P5K Premium BIOS 0504)

I have this machine overclocked to 4G 9x444 with voltage in the BIOS @ 1.3375

At idle the voltage is 1.312 and temps reported by Coretemp are about 55
Under Load the voltage is 1.288 and temps reported by Coretemp are about 77!

PC Probe is reporting 60 under load

I've been stress testing assuming these temps cant be accurate, but now i'm starting to get worried. The machine is stable at these temps and volts though.

When I was running the machine at stock settings the temps werent much better, probably about 10 degrees difference

Anyone have the same experiences, could it be the BIOS and the new wolfdales or just some wolfdales?

BATCH: Q746A514, friend has a Q746* as well with a P5K-E with the same problems

None have figured this out yet, maybe some bad IHS, or the bios? OR the programs out there are not fineadjusted to handle these new cpu's..

no one actually knows yet, check around and keep a look out, sometime we will get whats up :)

It is a problem with the cpu per the core temp person. Read the link at the end if want more info.

"There can not be any bugs in retreiving the temps because if there was something wrong, it wouldn't have worked at all, on any CPU (as the code is identical for all Yonah, Conroe and Penryn).
Anyway there seems to be a major issue with DTS and 45nm..."

http://www.alcpu.com/forums/viewtopic.php?t=372

i have the same build as yours, 8400 and p5k premium, but i am using the 0404 bios.
with watercooling, apogee gtx block, i have 38c-39c idle when running at 4320mhz at 1.368v. and 58c-59c load.

I had the same problem with my MARS. I guess its due to the BIOS?

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Originally Posted by aoch88

I had the same problem with my MARS. I guess its due to the BIOS?

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Nope, its the chips itself.

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Originally Posted by Bail_w

Nope, its the chips itself.

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Bail do you mean the 8400 Chip or the Chipset (P35)?

It could be the IHS and Core contact was not prefect or it could be something elese related to the CPU.

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Originally Posted by haoster

i have the same build as yours, 8400 and p5k premium, but i am using the 0404 bios.
with watercooling, apogee gtx block, i have 38c-39c idle when running at 4320mhz at 1.368v. and 58c-59c load.

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I didn't think the 0404 bios would run an E8400... if it does... that's great news. Can you confirm its 0404 and not 0504?

Would appreciate a confirmation on this as well :)

(Like what i'm reading about this cpu - don't like what i've read about the 0504 bios..)

I agree it's a problem with the CPUs not the mobo, but I don't think it matters. Intel raised TjMax by 30 degrees compared to 65nm chips for a reason and surely measuring how far away from that you are via CoreTemp is a reliable indication of whether you're running too hot.

I've run chips much hotter than this, the heatsinks generally got too hot to touch and they still ran fine. My old P4's blackened the copper heatsinks because they got so hot, ran at 85 degrees 24/7 and never had a problem. This E8200 can't even warm my IFX-14 up...

With actual 1.44 vCore under load I'm TjMax - 35 (70 / 105) on air, around the same as my 65nm which was TjMax - 32 (47 / 75)? Fine I tell ye!!

At the end of the day: cold heatsink + TjMax-30 = np :)

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Originally Posted by Kilyin

I didn't think the 0404 bios would run an E8400... if it does... that's great news. Can you confirm its 0404 and not 0504?

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the 0404 bios for p5k-premium runs e8400 very well. i have been running it with 0404 for a week now. not a single problem.
actually i think the best bios for 8400 is still the 0404. since 0504 has a lot of memory bandwidth fall back

for the high temp problem, i dont have it at the first day i installed my 8400, everything seemed normal. 4320mhz @ 1.368v underload at 59c. idle at 39c-40c. and both core pretty much have the same temp at the same time.
but now, after i changed my waterblock from gtx to gt. the temp went up. with lower clock and the same volts(cpu degraded i think), 4230mhz @1.368v. underload at 69c (10c difference). idle at 43c. i have mounted the waterblock for about 5 times, and everything else remained the same. so now i dont know if the waterblock really could cause so much temp difference, or its something else.

and i have tried both the 0404 and 0504. both show the same temp.

I reseated the heatsink 3 times with no change in temps. Mine reports 50 idle 70 load, but the heatsink doesn't get warmer than room temp.

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Originally Posted by zizo

I reseated the heatsink 3 times with no change in temps. Mine reports 50 idle 70 load, but the heatsink doesn't get warmer than room temp.

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Hmm that would imply a sensor/program problem and not necessarily a heat problem.


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