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why my E8400's core temperatures are lower than surface's?

post #1 of 10
Thread Starter 
it's so weird

BTW,my processor is running pretty well at 4.0G(1.248V)
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CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
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WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
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My System
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CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
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Logitech M305 
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post #2 of 10
Different programs, different temps. Go try realtemp and hwmonitor. You'll see what I mean, I've heard that realtemp is the most accurate for intel cpus.
post #3 of 10
Thread Starter 
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
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post #4 of 10
I see no issue?
post #5 of 10
I see no problems with ur temps... I have a suspicious 15 degrees celsius with a athlon II x4 635 stock clocks (2.9 ghz) and stock heatsink....
post #6 of 10
Thread Starter 
Quote:
Originally Posted by Eagle1337 View Post
Different programs, different temps. Go try realtemp and hwmonitor. You'll see what I mean, I've heard that realtemp is the most accurate for intel cpus.
nothing changed
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
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Reply
post #7 of 10
My Gigabyte boards, GA-EP45-UD3 AND GA-EP45-UD3LR, do that same thing. I'd think that there is something wrong with board's temp sensor, it's just not possible that core temp is lower than socket temperature. This is my UD3 running folding, with Prime95 temp difference is even bigger.
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Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
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EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
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Cooler Master Cosmos II 
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Intel Core i7-3770K Asrock Z77 OC Formula XFX Radeon HD 7870 XT Kingston HyperX Predator 2400 MHz 2*4 GB 
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EK Supreme HF EK-VGA Supreme HF Windows 7 Ultimate  Silverstone 1200W Strider Gold Evolution v2.0 
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Cooler Master Cosmos II 
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post #8 of 10
Both of my EP45 boards do the same thing.

I wondered the same thing, and from what I have determined, it is not a temp on the CPU, it is reading from a sensor on the motherboard near the socket.

Someone could prove me wrong I suppose.
Edited by SyveRson - 2/26/11 at 12:34pm
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i7 3770K @ 4.7GHz GA-Z77X-UD3H Sapphire R9 290 4x4 GB Mushkin Stealth 2133MHz 
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Samsung EVO 120GB Crucial M500 480GB WD10EZEX 1TB H100i 
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i5 4590 GA-Z97X-SLI ASUS STRIX RX 480 8GB 2x4GB Samsung 30nm 2000Mhz 
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My Computer
(12 items)
 
Haswell PC
(12 items)
 
HTPC
(12 items)
 
CPUMotherboardGraphicsRAM
i7 3770K @ 4.7GHz GA-Z77X-UD3H Sapphire R9 290 4x4 GB Mushkin Stealth 2133MHz 
Hard DriveHard DriveHard DriveCooling
Samsung EVO 120GB Crucial M500 480GB WD10EZEX 1TB H100i 
OSMonitorPowerCase
Win 10 QNIX QX2710 Rosewill HIVE-650 HAF 912 
CPUMotherboardGraphicsRAM
i5 4590 GA-Z97X-SLI ASUS STRIX RX 480 8GB 2x4GB Samsung 30nm 2000Mhz 
Hard DriveHard DriveHard DriveCooling
Crucial M4 128GB SSD WD Blue 500GB WD Blue 320GB Stock Intel 
OSMonitorPowerCase
Win 10 QNIX QX2710 Corsair TX650 DeepCool Tesseract 
CPUMotherboardGraphicsRAM
i5 3570K 4.4Ghz GA-Z77X-UD5H Sapphire HD7950 3GB 2x4 GB Mushkin Stealth 1600Mhz 
Hard DriveHard DriveOptical DriveCooling
A-Data S599 64GB SSD Assorted HDDs ASUS 24X DVD Burner Hyper 212 EVO 
OSMonitorPowerCase
Win 10 x64 SANYO 50" Silverstone ST50F-ESG NZXT Source 210 Black 
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post #9 of 10
It may be the bios you have. My current bios does the same thing. The previous bios I had reported the cores at the same temperature, but listed the surface temperature a little lower than the cores. .
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Chronos
(14 items)
 
Home Server
(8 items)
 
 
CPUMotherboardGraphicsRAM
i7 2600k Intel DZ68BC Nvidia GTX 970 Samsung MV-3V4G3D/US 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Seagate ST3320620AS LG DVD burner Corsair H105 
OSMonitorKeyboardPower
Microsoft Windows 7 Ultimate Samsung SyncMaster 226BW Logitec Backlit Antec TruePower 750w Blue 
CaseMouse
Corsair 550D Logitech 
CPUMotherboardGraphicsRAM
Xeon E3 1230 Supermicro MBD-X9SCI-LN4-O Onboard Matrox G200eW Kingston KVR1333D3E9S/4G 
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Seagate 500gb  Esxi 5 Corsair CX430 Lian Li PC-A05FNB 
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post #10 of 10
Thread Starter 
thanks for all of your answers.
but I don't think it's the bios or motherboard.
I used E5200 before I got this E8400, and the temp readings were normal at that time.
since I upgraded to E8400, I replaced the cpu cooler incidentally.
I've reinstalled the cooler for several times, but...nothing is gonna change
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
  hide details  
Reply
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
E8400@4.3G Foxconn MARS ATI Radeon HD 5750 Ramaxel DDR2 800 2G*2 
Hard DriveOSMonitorPower
WD Caviar Green 1T Windows 7 Ultimate AOC IF23 HuntKey DH6 400w 
Mouse
Logitech M305 
  hide details  
Reply
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