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Not sure about stock E6400 temps

Last response: in Overclocking
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March 26, 2007 7:01:00 PM

I have just built a new computer and am trying to determine if it is running OK. I don't know if I will Overclock it or not, but want to make sure that I am starting off OK. I have looked at the Core2 Duo Temp guide, but don't think that I understand a bunch of that stuff 8O

Below are my system specs and the results of testing, if someone (hopefully Computronix at least) would review and give suggestions.

My computer:
Case: Antec Nine Hundred case (4 fans)
PSU: Antec True Power Trio TP3-650 ATX12V 650W
MB: Asus P5b
CPU: Intel E6400
Mem: CORSAIR ValueSelect(2 x 1GB)DDR2 667
HD1: WD 74G Raptor
HD2: WD 320G Caviar
Video: EVGA GeForce 7600GT 256MB PCI Express x16
OS: WinXP Pro SP2

Variables:
Ambient: 24C
Chipset: P965
C2D: E6400
CPU Cooler: Stock
Freq.: 2.13Ghz
Load: TAT @ 100% for 2 1/2 minutes (I got scared when I saw 70C 8O )
MB: Asus P5B
Vcore: 1.17 idle

Results:
@idle SpeedFan:
System: 30C
CPU: 45C
Core 0: 28C
Core 1: 31C

@idle TAT:
CPU 0: 29C
CPU 1: 32C

@idle PC Probe II (Asus utility):
MB: 30C
CPU 44C


@load SpeedFan:
System: 30C
CPU: 70C
Core 0: 53C
Core 1: 53C

@load TAT:
CPU 0: 52C
CPU 1: 52C

@load PC Probe II (Asus utility):
MB: 30C
CPU 69C

Thanks,
Rodney

More about : stock e6400 temps

March 27, 2007 2:12:22 AM

So, how high can the Core 0/1 values safely go on the E6400?

When I ran TAT @ 100% and saw 70C, I started to panic and shut it down after 2 1/2 minutes. Was that premature?

In SpeedFan, what offsets, if any, do I need to set to make the CPU temp appear correct?

Thanks,
Rodney
a b à CPUs
a b K Overclocking
March 27, 2007 6:09:05 AM

Quote:
Variables:

Ambient: 24C
Chipset: P965
C2D: E6400
CPU Cooler: Stock
Freq.: 2.13Ghz
Load: TAT @ 100% for 2 1/2 minutes (I got scared when I saw 70C)
MB: Asus P5B
Vcore: 1.17 idle

Results:

Idle: SpeedFan CPU 45, Core 31 TAT 32
Load: SpeedFan CPU 70, Core 53 TAT 52


prozac26, RRandal's temps are no more correct than your comments. Read the Core 2 Duo Temperature Guide.

RobsX2, RRandal already gave clock info.

RRandal:

(1) Tcase can not Idle 21 degrees above ambient. Re-read the Guide.

(2) Tcase can not be higher than Tjunction. Re-read the Guide.

(3) Tcase (CPU) is offset by +15.

(4) Tjunction (Hottest Core) is offset by -15.

(5) TAT is also offset by -15, so it's temps should be disregarded.

Corrected Results:

Idle: SpeedFan CPU 30, Hottest Core 46
Load: SpeedFan CPU 55, Hottest Core 68

(1) Use the "Offsets" section of the Guide to configure -15 CPU and +15 Core corrections.

(2) Corrected temps are borderline warm at low Vcore with stock cooler and 24 ambient, and your Delta is at the limit of the 25 degree spec, which typically indicates an improperly seated stcok cooler. Check your cooler and make triple damned sure that all 4 fasteners are securely attached completely through the motherboard. Re-read the Guide and refer to the colored temp scale.

Hope this helps,

Comp 8)
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March 27, 2007 2:23:21 PM

Hmm.......... You also Have P5B-E mainboard with E6400 like me .I also very confused about my Processor temps Becouse I'm running my E6400 at 2670Mhz(333 x 8).
TAT show Idle Core 0/1 temp 50/49c .Load is 74/76c.CoreTemp 0.95 show the same.But I'm really upset wit this results (bcoz I'm using ASUS silentsqure cooler.Its pretty good cooler ,works well with my PD 945 @ 4Ghz.)

PECI Function disabled by BIOS .In BIOS & SpeedFAN 4.32 shows CPU TEMP as 50C & Core0/1 temp lover than the CPU.According to C2D temp guide it cannot be happen.So I have to offset -15 for Speedfan & +15 for core0/1 temp.I re check my CPU cooler & reinstall it with ASUS thermal paste.Results are same..........

I don't know which program to trust with temp....................
a b à CPUs
a b K Overclocking
March 27, 2007 2:29:04 PM

Read, read, read, read, then read again. All the information you need is in the Guide, and it works. I can't help anyone who doesn't post complete Results and Variables. This is shown in the Guide twice.

Comp 8)
March 27, 2007 3:07:47 PM

Thanks CompuTronix!

So, I changed the offsets in SpeedFan, and now my idle temps are:
CPU 26-30C
Core 0 40C
Core 1 44C

I will try to re-seat the heat sink and see if there are any differences.

A few more questions:
1) Should I see a drop in the CPU temp, the Core temps, or both if the heat sink gets seated properly? I am assuming both.

2) Since there seems to be no way to offset the values in the Asus supplied PC Probe II, should I ignore this program?

2a) By the way, this program(PC Probe II) has several times shown warnings that the Vcore, +3.3, and +5 voltage sensors have been low (anywhere from 0 to a few tenths low). Should I worry about this? Is this an indication of a power supply problem?

3) Do you run SpeedFan ALL THE TIME, or just when you are testing?

4) What is the "AUX" temp display in SpeedFan? It shows 61-64C.

Thanks again,
Rodney
a b à CPUs
a b K Overclocking
March 27, 2007 3:35:43 PM

Quote:
1) Should I see a drop in the CPU temp, the Core temps, or both if the heat sink gets seated properly? I am assuming both.


Both

Quote:
2) Since there seems to be no way to offset the values in the Asus supplied PC Probe II, should I ignore this program?


Yes

Quote:
2a) By the way, this program(PC Probe II) has several times shown warnings that the Vcore, +3.3, and +5 voltage sensors have been low (anywhere from 0 to a few tenths low). Should I worry about this? Is this an indication of a power supply problem?


Depending upon the alarm set points, a PSU problem is possible. Run TAT at 100% Load while observing voltages using SpeedFan's "Charts" and watch for unusual negative spikes. If you suspect a problem, check with mpilchfamily in Power Supplies, PC Cases & Case Mods. He can point you in the right direction.

Quote:
3) Do you run SpeedFan ALL THE TIME, or just when you are testing?


SpeedFan 4.32 is the only monitoring program I run.

Quote:
4) What is the "AUX" temp display in SpeedFan? It shows 61-64C.


On some motherboards, Aux will typically be an unasigned spare input which may display random values, is a known issue, and is not a problem.

Hope this helps,

Comp 8)
March 27, 2007 3:40:57 PM

Quote:
Thanks CompuTronix!

So, I changed the offsets in SpeedFan, and now my idle temps are:
CPU 26-30C
Core 0 40C
Core 1 44C



That is still hotter than it should be for stock idle temps. Back when I was stock my E6400 would only idle at 31c on core 0 and 32c on core 1.

It appears that I may not have a properly seated heat sink. This is something that I am going to investigate...

Rodney
March 27, 2007 3:45:31 PM

Thanks! It is SOO cool when you find someone who knows their "stuff" and is so willing to help those that are new to this :D 

Rodney
a b à CPUs
a b K Overclocking
March 27, 2007 3:50:16 PM

You're very welcome, and good luck! :D 

Comp 8)
!