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e8400 temperature problems with a twist - Page 2

post #11 of 12
As a reference, I've just built a system using a new e8400 and have found the following operating temperatures.

Tcore: 44ºC/50ºC (idle/load)
Tcase: 17ºC/21ºC (idle/load)

Note:
-Tcore is the hottest of the two core temperatures and at most there is about 5ºC difference between the two cores at any time.
-and, these temperatures were reported by Everest Ultimate Edition. The Tcase temperature (i.e. the thermocouple reading at the centre of the heat spreader) was consistent with the BIOS, as I would expect if Everest was reporting correctly.

Also, I found this guide useful in understanding what all the different temperature readings mean, and how to relate them to Intel's CPU specifications. As far as I can tell the above temperatures are well within spec.

http://www.overclock.net/intel-cpus/...mputronix.html

Aside from the above, I was planning on overclocking the CPU (not that there is really a need) but the after market Zalman I bought wouldn't fit on the !@#$% motherboard. After having read some reviews discovered they really didn't improve heat dissipation an awful lot anyway.

Edit: Using only stock cooling equipment at present.
3D Aurora 570
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo e8400 ASUS P5K-E WiFi eVGA 8800GT SC edition Corsair XMS2 4GB(2x2GB) PC2-6400 DDR2-800 C5 DHX 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB 7200RPM 16MB SATA II ASUS DRW-1814BLT 18X LightScribe DVD Burner SATA Microsoft Windows XP Pro SP2 BenQ E2200W 22" Widescreen LCD 
KeyboardPowerCaseMouse
Logitech® G15 keyboard Corsair HX-620 620W Gigabyte 3D Aurora 570 Logitech® G5 Laser Mouse 
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3D Aurora 570
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Duo e8400 ASUS P5K-E WiFi eVGA 8800GT SC edition Corsair XMS2 4GB(2x2GB) PC2-6400 DDR2-800 C5 DHX 
Hard DriveOptical DriveOSMonitor
Western Digital 500GB 7200RPM 16MB SATA II ASUS DRW-1814BLT 18X LightScribe DVD Burner SATA Microsoft Windows XP Pro SP2 BenQ E2200W 22" Widescreen LCD 
KeyboardPowerCaseMouse
Logitech® G15 keyboard Corsair HX-620 620W Gigabyte 3D Aurora 570 Logitech® G5 Laser Mouse 
  hide details  
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post #12 of 12
I dont belive this temp problem is with the CPU itself, after all some people are reporting software like CoreTemp etc, to be hitting 100oC whilst priming their 8400's, and of course if the CPU was truley hitting 100oC then it would of crashed and burned or at least throttled right down.

You have to remember these CPU's have only just been released and its gonna take some time before 3rd party software catches up, the way I have monitored mine is to look in the bios under PC health at the CPU temp, which at the time was 30oC idle but overclocked to 4.2ghz @ 1.40v.

Now below I have attached a link to a screen shot and what I have found, is coretemp reports double what my bios reports, however, the monitoring software which was bundled with my mobo (Gigabyte x38-DS4) reads direct from the bios and is reporting much more believable and accurate CPU temps.

I say believable because my Conroe E6600 @ 3.6ghz with 1.5v reports very similar temps within a few degrees, and with the 8400 being 45nm and running lower volts than my E6600, I would expect lower temps, and thats what im seeing.
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