Intel E8400 Wolfdale Living Review

[supershanks]

I think it helps clarify where the issue is.
It's not like we've seen in the past with windows software just being wrong or mis-calibrated

The TjMax I think is obviously a fixed limit determined by Intel
That really only leaves an issue with the DTS. The questions are :_

1) Is the DTS value understated or poorly calibrated , therefore giving higher absolute temps.
2) Have Intel somehow changed something in the DTS
3) Or is DTS correct, if so we ned to understand what is happening

I've got more clarity but still don't know

[Clunk]

I seem to remember a very similar issue when Conroe was released, and some people (me included) were getting silly high temps on their E6600s, and the problem was first thought to be the boards, and then it was the onboard sensor, then the IHS (mine was flat). My E6600 was the same in every board I used it in, so I never did find out the problem.

[Ace-a-Rue]

Originally Posted by Clunk

But what does it tell you about your CPU?, with regards to the high temps, are they correct?

Whaddayathink?

according to intel tech support, you don't need to be concerned with an overtemp!...he said the board will receive the signal from the cpu and shutdown...it probably only has to touch that upper limit for a milisecond or less and it's done!

[supershanks]

This is interesting Compare the CPU Temp(Tcase) with the core temps here. Cpu temps look somewhere like where we'd expect them. Core temps appear overstated.


There is a term similar to the TjMax for the CPU temp, don't know it offhand. But it reinforces perhaps that

1) Is the DTS value understated or poorly calibrated , therefore giving higher absolute temps.

may be correct.

See also Core 2 Quad and Duo Temperature Guide for temp definition info.

[Ace-a-Rue]

i have a feeling that Abit has adjusted their cpu temp to closely approximate Tcase temp versus absolute max temp, which is really internal temp of the core(s)

[supershanks]

according to intel tech support, you don't need to be concerned with an overtemp!...he said the board will receive the signal from the cpu and shutdown...it probably only has to touch that upper limit for a milisecond or less and it's done!

Yep a bit like a speed cop

I want to check for a concave ihs tommorow.

Tcase temp

that i think is the term i was seeking cheers

i have a feeling that Abit has adjusted their cpu temp

Is that the polite term for fixed the buggers

what's your take on the temps Ace?? the core based ones??

[ArEkMaT]

After getting those bad results and C1 errors on mine E8400 in 12 bios, i downgraded to 11 bios today.
And now i like it. Cpu went to 9x510 with vcore 1.4. No more C1 errors every time
But memory overclock badly. 830 Mhz with 4-4-4-12 and 1050 with 5-5-5-15.
Didnt try to change other timings yet. It was just to see how far it can go.
Anyway, im pretty happy now. Currently have 9x445 (4.0GHz) with 1.35v stable in orthos
Temp is reaching 65 max. Tommorow i will lap my ultra, and maybe cpu too. Tweak timings for ram and try make lower vcore. After that the only thing i will do is wait for a new bios from abit

[Clunk]

The Inquirer are on it

And from ocforums.

Originally Posted by paco572

I e-mailed Intel abut the sensor problems
Heres what intel said about senors problems, talk about a load.

First,
My e-mail, by the way I did copy and paste some info from this thread to get things started.

the temp probs in the E8400 are stuffed. The Coolest (the guy who
makes coretemp) reports that according to Intels spec, his program is
reading the temps correctly. In other words, coretemp is reading what
the cpu is telling it. Case and point, my E8400. According to
coretemp, one core is locked at 43c, the other at 51c. They will not
read any lower than this, ever... Once the temp moves above these
values its starts to rise, but other report completely frozen probs
(sometimes just reading 7c!). My motherboard reports 34c on the cpu
all the time, i have never seen it move off this value (this may be
fixed in future bios though). Nevertheless, there seems to be
problems with the sensors being reported on many websites, can you
confirm this and when will the recall take place?

-------------------------------------------------------------------
Intels response,

The maximum operating temperature of the Intel(R) Core(TM) 2 Duo
processor E8400 is 61.4 degrees Celsius. As long as the processor is
operating under this temperature it is operating within
specifications. We recommend setting any thermal alarms about three
(3) degrees below the maximum recommended temperature for the
processor. We do not have a normal operating temperature for the
processor as this temperature will vary depending on the chassis and
other hardware installed on the system as well as the actual load the
software is placing on the processor.

You do not need to worry about the temperature of each core, you only
need to pay attention to the CPU temperature itself.

Currently we do not have any report on sensor problems with the
Intel(R) Core(TM) 2 Duo processor E8400.

----------------------------------------------------------------------
Well I'll take that with a grain of salt!!!

---------------------------------
****UPDATE*****

That idiot at intel gave the wrong information on the E8400, the true CPU TEMP MAX IS 72.4c and the Tjunction core values remain 105c.

Here's the link to see for yourself
http://processorfinder.intel.com/det...px?sSpec=SLAPL

I have a dilemma now, to send mine back, unopened under the DSR, or open it and murder it with phase.

[Ace-a-Rue]

BOY!...what a can of worms for Intel!

clunk: i bought a 9650 and core #0 was locked at 51C at idle and benching until the workload took the temp above 51C...

i wish i didn't return that 1st 9650...should have kept it since it was a very good overclocker...i returned mine to the reailer...i was at day 29 out of 30 when i asked for the RMA...the online retailer (clubit.com) did not charge me any re-stocking fee even though the package was recycled...i wish i wasn't so "GREEN"!...i was lucky since they said they can charge up to 15% if all the packaging and items are not returned.

my recommendation would return it and wait a couple of months for Intel to sort this out....BUT...if you do not really care about accurate temp reporting, then, go for it!

[dikkiedirk]

Just wondering if this is really is a bug that Intel engineers didn't see. My E8400 is still boxed and it might return it. Or isn't it a big deal? Mine is a Q746A328, pack date 01/09/08.