e8400, query

[stroberaver]

Most of the issues seem to involve incorrect readings as opposed the core being ACTUALLY too hot. Now, if thats the case, then its an obvious flaw with the CPU itself and no amount of BIOS updates will resolve that.

I agree with Hicks tbh..........whether the CPU is within Intel tolerances sjhould be neither here nor there.
These CPUs, even if its just a certain batch effected, as being misdescribed and therefore should be accepted back as faulty. This is a case for Scan to deal with Intel and not the customer to go directly to the manufacturer.

I agree, and this has been my experience so far - see my post in the general hardware forum about my E8400. The base of the heatsink is cold to the touch, but the cores are reporting ~43°C at idle. I'll be monitoring the situation with these chips closely, as to whether there is a fault with the temperature reporting diodes in them. A fault in the temperature sensors is still a fault, even if the readings are within Intel's spec.

My other concern is about 14 or 28 day limitations on faults/returns etc with Scan, as obviously sometimes it takes longer to establish whether or not an item has a fault (eg. I can't say for sure about mine because I'm waiting for Abit to provide a final, stable BIOS that can read the Tcase sensor, until then I'm going off the DTS readings which aren't supported or referenced by Intel).

[Hicks12]

cpu was at 46C when it booted, went to 50 C a few mins after and has gone back down to 45C now(idle).

Who should i contact about this? i dont want to phone simply because im busy, never had problems with phoning but prefer to email them or something at this time.

I will update my bios, even though it should do nothing.

[Bhavv]

Hmmm, CPU @ 4050 Mhz.

Idle 43 degrees, while stressing under Orthos it reads 75 degrees.

Funilly enough my PC was running for two hours before and while I updated my bios, with the CPU reading 40 degrees. After I opened the case to install the rest of my ram I touched the Silent Knight II, the top of the fins and the base on top of the CPU. It was completely cold, top and bottom.

15 minutes of stressing with Orthos at 75 degrees, and the air blowing out of my exhaust fan directly behind the CPU cooler is ......

COLD!!!! Colder then my skin, and colder then my room and my room is 23 degrees and my skin is 36 degrees I think.

So just how the heck is it 75 degrees and blowing cold air?

[Hicks12]

I believe the diodes are wrong, under orthos i have 66C and 60C on second core. Been on over an hour, touched heatsink as it is slightly warm, just a bit hotter then room temp i think. That it with the stock cooler too.

I would like to get a replacement as it fails to intels specification, as the temperature readings are false. Updating bios in a few.

[Bhavv]

But intel think theres nothing wrong, and because I'm not using the stock cooler, my temps are not worth considering when I'm using one of these:





And intel think everyone is going to use their stock cooler when you can get one of these oh really? O.o

[Hicks12]

Updated bios to latest, only thing it did was give me a few overclocking options in bios and made windows load 1minute slower. Temps still reading hot.

Any chance this is classed as faulty now? id let my dad's team have a crack at this cpu but they dont deal with 45nm they only do 90nm, they would probably do a much better job of it.

Any1 from scan care to clear this up for me? i know they are within intels specific limits BUT the item itself is recording false and that fails its own specification. Intel should take it back.

Im still waiting from intel, how good?.

BTW: thanks too scan as u guys have been helpful and have done mostly what you can do, but can you push intel more?xD as this is is classed as faulty now according to their own spec's.

[Dreaming]

Could someone get an external temp sense to verify the exact heat under load etc.? Might have to stick a probe between the CPU and heatsink which might increase the actual figure, but it should be roughly correct.

Or better yet, get one of those radar ones and just point the laser and the bottommost part of the heatsink. Should be relatively close in temperature terms.

[Hicks12]

i think i have a thermometer down stairs, ill check and give u a rough temp

edit: nvm dont have one, dad is saying there isnt a way to check the real temperature as the heatsink can be totally different(he works in electronics etc), so some1 care to put a homemade temp reader between heatsink and cpu?xD.

[Bhavv]

It would be nice if one of the hardware reviewers on hexus could do a temperature test on an E8400 and compare the sensor readings to a real thermometer. Then they could sue intel O.o

[wesleyaldred]

Ok Guys,

Please don't think we are just ignoring this, we have been doing a lot of testing behind the scene's and we have even had a certain motherboard manufacturer write a special test BIOS update for us, we are working on this issue, what we need to do now is a test with an Intel board, we have been talking to our channel partners at Intel and they want us to compare our results to those run with an Intel motherboard, unfortunately due to staffing levels we can't do the Intel test until Monday, we will report back more information when we have.

Please don't post any results acheived whilst overclocking the CPU, we are not interested in these readings as they are irrelevent to warranty claims, all figures MUST be achieved whilst running at clock speeds with stock cooler.

Wesley

[Hicks12]

thanks for the info wesley, much helpful.
I look forward to these results.

[Bhavv]

unfortunately due to staffing levels we can't do the Intel test until Monday, we will report back more information when we have.

Getting paid for playing with PC's....

How unfair

Looking forward to te results too, thank you for testing this.

I now have my E8400 maxed at 4275 Mhz on 1.35v, 60 mins orthos stable. it displays temps around the 70 degrees region, but while my X1900 is at 55-63 degrees and blows out much hotter air then the CPU does. Well, the CPU cooler still blows cool air, its not even slighty hot.

My previous 4400+ was also around 60+ degrees and blew out hot enough air to warm my room up. A day of using my PC now and my room is still cold. I need to use my radiator now for heating O.o

Did an hour of orthos + several runs of super PI followed up with 2 runs of 3D mark 01 through to 06, not one single crash. I found my stable max OC XD.

Now to go see if I can download my Age of Conan beta yet.

[wesleyaldred]

Getting paid for playing with PC's....

How unfair

Well yeah, it's a hard job - but someones gotta do it !!!

[Bhavv]

Well yeah, it's a hard job - but someones gotta do it !!!

Well, I guess once you make a job out of it it becomes unfun. For example, I wonder how many PC enthusiasts would want to work for PC world....

Not me.

[stroberaver]

Ok Guys,

Please don't think we are just ignoring this...

Thanks Wesley for the update; it's reassuring to know that this is being looked into. I'm running with a Thermalright Ultra 120 Extreme at the moment, but I tried the stock cooler first (I posted the results somewhere around here two or three days ago). My system is entirely at stock speeds.

Can we just clarify though - as you mention about having a special test BIOS written for yourselves. Are the temperatures you're looking at coming from the DTS diodes as reported directly by CoreTemp et al, or the Tcase sensor that is interpreted by the mobo BIOS and then read by software? If it's the core values, is the BIOS relevant as I was under the impression that these sensors were read directly from the CPU, "bypassing" the BIOS or mobo?

[wesleyaldred]

Yep, we have tried all methods both Bios reporting and Core Temp as well as the Speedfan 4.34 beta 38.