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Yet another E8400 temperature thread

post #1 of 8
Thread Starter 
I have a few similar issues, although with, unfortunately, bigger numbers. I'm on a stock HSF and "Dynex" thermal paste bought at Best Buy (I forgot to order it with the rig) at present, but that shouldn't be too unreasonable. I already reseated the HSF - that helped but not more than 10 C - so this is still ugly.

Anyone explain this: (?)
Stock speed, at load

Stock Speed, Idle

Underclocked to 1.2 Ghz, Idle


What I can figure out about the above:

1. Temp2 is probably Tcase, since it scales with processor usage. Oddly enough, Temp1 barely changes at all and if anything seemed hotter at idle, so I don't know what that is.
2. The diodes are not stuck or broken. They go up smoothly with increasing load.

Information not above that is interesting:
Idle core temps are always stable but fluctuate (I think with ambient) between 48 and 53 degrees. Vdroop is about .04 at idle, .06 load, so not too substantial. I've undervolted the Vcore at stock for normal use, it runs at the specs in my sig day-to-day.
I initially had the HSF seated incorrectly and temps were 10 C higher. Thanks to LK for the suggestion of reseating.

What I can't figure out:
1. Why does Speedfan get stuck on a 57 core reading?
2. Why do I have a 25 C difference between Tcase and Tcore at idle, undervolted and underclocked? I recognize this is a calibration issue in all probability, but I don't want to underestimate temperatures by adding an offset, I want to understand what's wrong before "fixing" it.
3. Is Temp1 my Northbridge?
4. Is there even a remote possibility that a 45nm processor is running at 27 Tcase and 53 Tcore at idle on 1 volt and 1.2 Ghz?
Suzanne
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Suzanne
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Wolfdale 8400@Stock, 1.1125 Vcore, 1.07 post droop Gigabyte GA-p35-DS3L 8800GT (EVGA) OCZ DDR2 1066 
Hard DriveOptical DriveOSMonitor
Seagate 7200.10 250gb Samsung IDE XP Home SP2B Hanns G 17' 
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post #2 of 8
pictures are a little small are you getting 40c at idle?
HackinTosh
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HackinTosh
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post #3 of 8
Might want to make you pictures bigger. I cant read them
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post #4 of 8
I'm having trouble reading the screenshots! Maybe its a firefox issue...but I cannot zoom in on the images...are they really that tiny?
Jaguar
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Jaguar
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post #5 of 8
Thread Starter 
Oops. I reduced them initially because I thought I would upload them to the forum, and then decided to go the imageshack route... Anyway, here's the skinny:

Underclocked to 1.2 Ghz (200x6), 1 volt after droop, at idle:
57 C core temp in Speedfan, 26 C Tcase
Cores are 53/53 in Coretemp (51 C at boot, 53 after a couple minutes)

Stock speed, undervolted just a little, at idle:
57 C core temp in Speedfan, 27 C Tcase
Cores are 53/53 in Coretemp (51 C at boot, up to 53 after on a few minutes)

As just above, Orthos Load:
57 C Core temp in Speedfan, 40 C Tcase
64/64 in Coretemp (Might have gone higher, this is 1 minute into the Orthos run. I've run it for half an hour and gotten 65-66)
Suzanne
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Wolfdale 8400@Stock, 1.1125 Vcore, 1.07 post droop Gigabyte GA-p35-DS3L 8800GT (EVGA) OCZ DDR2 1066 
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Seagate 7200.10 250gb Samsung IDE XP Home SP2B Hanns G 17' 
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Suzanne
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Hard DriveOptical DriveOSMonitor
Seagate 7200.10 250gb Samsung IDE XP Home SP2B Hanns G 17' 
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post #6 of 8
download speedfan 4.34, beta 40
My System
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My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
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Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
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post #7 of 8
Quote:
Originally Posted by opt33 View Post
download speedfan 4.34, beta 40
I wouldn't recommend speed fan...it isn't very accurate compared to CoreTemp.
Jaguar
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Intel E6850 - 3.6Ghz Gigabyte P45-UD3R 8800GT 512MB OC 4GB OCZ Platinum 6400 
Hard DriveOptical DriveOSMonitor
WD AAKS 640GB + 500GB Storage Pioneer DVD-RW SATA Windows 7 Professional x64 22" Viewsonic VX2255 
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Logitech Cordless Antec EarthWatts 500W Coolermaster Elite 330 Black Logitech Optical Cordless 
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Jaguar
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CPUMotherboardGraphicsRAM
Intel E6850 - 3.6Ghz Gigabyte P45-UD3R 8800GT 512MB OC 4GB OCZ Platinum 6400 
Hard DriveOptical DriveOSMonitor
WD AAKS 640GB + 500GB Storage Pioneer DVD-RW SATA Windows 7 Professional x64 22" Viewsonic VX2255 
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post #8 of 8
Quote:
Originally Posted by jinja_ninja View Post
I wouldn't recommend speed fan...it isn't very accurate compared to CoreTemp.
He was using old version of speedfan, was not reading sensors, thus suggested he get up to date version.

But since you brought it up, all the programs, everest, speedfan, coretemp, harware monitor etc. all read the exact same sensor for core temps, and read directly off the cpu, and all of them read it accurately, providing you are using the most recent version, and thus it supports that sensor. tjmax is set differently in speedfan for E8400 (in this single case making it more accurate than coretemp on my cpu calibrated with IR gun, but neither is correct), but for E6xxx series, its exact same as coretemp. If you read them side by side, there will be one or two degrees between the two, for the sole reason that they are sampling the same sensor at slightly different intervals.
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
My System
(15 items)
 
  
CPUMotherboardGraphicsRAM
6900K 4.4ghz  MSI X99A Krait Titan XP Gskill 32GB 3200 C14 
Hard DriveHard DriveCoolingOS
Samsung 960 Pro 1TB OS Samsung 850 pro 1TB games D5, XT45 280 rad, Nemesis 280 rad,  Windows 10 64bit 
MonitorPowerCase
Acer Predator XB271HU 144hz Seasonic Prime Titanium 850 Fractal Design R5 
  hide details  
Reply
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