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e5400's core temps never below 38c

post #1 of 25
Thread Starter 
Well... The title says it all..

The core temps on my e5400 does not go below 38c (these are also my idle temps btw). Is there something wrong? Or is this just how the e5400 was made.


On my stock cooler. The temps never went below 38c on idle. Even on my Hyper 212+ the idle temps on my cores never go below 38c.

I was thinking that something might have gone wrong with my mounting but I guess this didn't bother me cause my load temps were reduced drastically.

any input?



PS: I use coretemp, realtemp, and Everest Ultimate

and my CPU temp can go to as low as 25c on idle.
Edited by tryagainplss - 1/20/11 at 9:06pm
    
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post #2 of 25
This is actually normal. You just have a CPU with stuck sensors. I actually have the same stuck position with my E8400's sensors.

Fortunately, all that matters are the load temps. However, Intel didn't design these sensors for us to use as veritable thermometers. But they left us with no choice. The intention of these sensors is to sense if/when the temperatures get too hot (too close to the Tj. Max). If they were to get that hot (100°C for our CPUs), then the CPU would either throttle itself down or turn itself off. Additionally, this is where the sensors become 100% accurate. So, the sensors actually don't start becoming accurate until somewhere above 50°C. This means that any temperature below 50°C is just that: it's "below 50°C". :/

So if your idle temps were causing the sensors to move (that is, to go higher than 38°C), then we would be able to say that your idle temps are higher than ~38°C.

Unfortunately, there's nothing that can be done about this because these sensors only care about high temps.
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post #3 of 25
Thread Starter 
wow... that really taught me a lot. Thank you very very much.
+rep

Good thing my load temps don't go over 60c on ITB.

But I still think I did something wrong on my mounting. Im using the TIM that came with the HSF. And.. I only have enough for one more reseating.
    
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post #4 of 25
Quote:
Originally Posted by tryagainplss View Post
wow... that really taught me a lot. Thank you very very much.
+rep

Good thing my load temps don't go over 60c on ITB.

But I still think I did something wrong on my mounting. Im using the TIM that came with the HSF. And.. I only have enough for one more reseating.
You're quite welcome!

What does CPU-Z say your core voltage is during a test in IBT?
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Hard DriveHard DriveHard DriveOptical Drive
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post #5 of 25
You are good as long as your load temps dropped then you are doing okay, idle temps mean nothing. Stuck sensors happened a lot with wolfdale chips idle temp readings. Give the TIM a little while to set and you should notice a little more decrease in the load temps as well. If you still feel that you mounted it wrong then by all means reseat it until you feel comfortable. I reccomend that you use some good quality TIM though like MX3 or 4 or Shin Etsu
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post #6 of 25
Thread Starter 
This is the first time I've noticed this but I think I have a battle with vdroop here

take note that I don't have voltage control, so all these voltages are not in my control. And I'm also running at 3516Mhz (319x11)

on Idle and just simply browsing the internet watching videos or just doing any other simple task my Core Voltage is 1.280v

But when I run ITB my Core Voltage keeps fluctuating. Getting mostly 1.272/1.264.
    
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post #7 of 25
Quote:
Originally Posted by tryagainplss View Post
This is the first time I've noticed this but I think I have a battle with vdroop here

take note that I don't have voltage control, so all these voltages are not in my control. And I'm also running at 3516Mhz (319x11)

on Idle and just simply browsing the internet watching videos or just doing any other simple task my Core Voltage is 1.280v

But when I run ITB my Core Voltage keeps fluctuating. Getting mostly 1.272/1.264.
If it's between 1.264V and 1.272V, then I think 60°C is a little higher than I would expect for a linpack test.

Where do you keep your system? I mean, is it out in the open, or is it in an enclosed area like a desk hole?
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It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
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post #8 of 25
Thread Starter 
Quote:
Originally Posted by TwoCables View Post
If it's between 1.264V and 1.272V, then I think 60°C is a little higher than I would expect for a linpack test.

Where do you keep your system? I mean, is it out in the open, or is it in an enclosed area like a desk hole?
ahaha

Nevermind. I've always known bad airflow coupled with warm weather and a warm room was my problem and still is xD
    
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post #9 of 25
Quote:
Originally Posted by tryagainplss View Post
ahaha

Nevermind. I've always known bad airflow coupled with warm weather and a warm room was my problem and still is xD
Oh. So then where do you keep your system?

Also, what's the approximate temperature in your room?
It's a computer!
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(19 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveHard DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #10 of 25
Thread Starter 
im drawing stuff on MS paint right now >.<
    
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Intel Pentium E5400 G31TM-P31 (MS-7529) NVIDIA GeForce GTS 250 Kingston (generic 6-6-6-18 @ 400mhz) 
Hard DriveOptical DriveCoolingOS
Seagate 250GB (ST3250318AS) Liteon CD/DVD-RW x22 Cooler Master Hyper 212 Plus Ubuntu 10.10 x86 / Windows 7 Ultimate x86 Dual-... 
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Acer X193HQ Genius KB 110 Corsair HX450 Something Generic 
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