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Windows 7: i5-750 temp issues

03 Aug 2010   #1
Evilclive

Windows 7 Home Premium 64-bit
 
 
i5-750 temp issues

I was thinking the other day that i wanted to overclock my cpu so i decided to see what my load temps were(i always just looked at the idle temps for it not really bothering to do load temps) and noticed that it was hitting around 80c with a prime95 test after only a couple minutes.

I ran Everest to see what my cpu fan RPM was at and noticed it never went over 2000 RPM(usually stayed at 1600RPM even though 2800RPM is the max). So i went into bios and turned off automatic fan control and it sits at about 2600 rpm.

With automatic fan speed shutoff the idle temps are 32c and load are at 68c sometimes hitting 70c for a brief time. After sometime of doing the prime95 test the cpu fan speed will increase to 2800RPM.

My problem though is the fan is real loud with automatic fan speed turned off but with it on it never speeds up and the cpu starts overheating...why is this? Shouldn't the sensor know that the cpu is getting too hot and increase the fan speed more? Why does it stay at 1600-1800RPM when its at 80c!!!?

P.S. Im using the stock fan that came with it and have it at stock speeds.


My System SpecsSystem Spec
.
03 Aug 2010   #2
Fumz

7 Ultimate x64
 
 

Quote   Quote: Originally Posted by Evilclive View Post
... With automatic fan speed shutoff the idle temps are 32c and load are at 68c sometimes hitting 70c for a brief time. After sometime of doing the prime95 test the cpu fan speed will increase to 2800RPM.

My problem though is the fan is real loud with automatic fan speed turned off but with it on it never speeds up and the cpu starts overheating...why is this? Shouldn't the sensor know that the cpu is getting too hot and increase the fan speed more? Why does it stay at 1600-1800RPM when its at 80c!!!?

P.S. Im using the stock fan that came with it and have it at stock speeds.
With the stock heatsink and fan, load temps of 70C are normal for the i5-750. If you want lower temps and quieter cooling, you should invest in an after market cooler.

I use a Thermalright VenomousX, Shin-Etsu X23 and a Scythe S-Flex 120mm fan (which hovers ~ 1200 rpms). Idle temps are in the high 20's, load temps are 49-52C, and more importantly, the machine is almost silent.
My System SpecsSystem Spec
03 Aug 2010   #3
Evilclive

Windows 7 Home Premium 64-bit
 
 

That will be a problem unfortunately, i haven't done any measuring but i have a micro atx motherboard and my video card and Ram are only a few inches away from the CPU, is there a aftermarket cooler that would fit?
My System SpecsSystem Spec
.

03 Aug 2010   #4
Fumz

7 Ultimate x64
 
 

Don't quote me without any dimensions to work with, but you might want to see if a Thermalright XP 120 would work? It's a low profile heatsink that, turned the right direction, would not get in the way of your card or your RAM... hopefully.

You can also check to see if you can fit a Corsair H50? I know the cpu mount would be fine, but would you have enough room for the radiator... that's the real question?
My System SpecsSystem Spec
03 Aug 2010   #5
Hipster Doofus

Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
 
 

If you want to slow the fan down & have it speed up as the temp goes up try Speed Fan. It's not difficult to set up. Keeps an eye on temp too.
My System SpecsSystem Spec
03 Aug 2010   #6
Evilclive

Windows 7 Home Premium 64-bit
 
 

Quote   Quote: Originally Posted by Hipster Doofus View Post
If you want to slow the fan down & have it speed up as the temp goes up try Speed Fan. It's not difficult to set up. Keeps an eye on temp too.
I have tried using speed fan but i cant seem to get it to work. It shows my fans in my computer but when i adjust percentages the RPM doesnt change. Am i just doing something wrong? The program seemed pretty straight forward but you never know lol
My System SpecsSystem Spec
03 Aug 2010   #7
Hipster Doofus

Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
 
 

Go to 'configure' then 'temp, highlight 'system' then configure the temp. Then go to 'speeds', highlight Speed01 then set the values.

Have a play with it but be careful. As you make changes listen to what is going on & watch your temps.
My System SpecsSystem Spec
03 Aug 2010   #8
Evilclive

Windows 7 Home Premium 64-bit
 
 

Under temp there is

CPU
Local
Remote 2
HD0
core0
core1
core2
core3

Which one do i change?

Edit: On the main page it has speed1 speed 2 and speed 3 showing 100%. Taking down the percentage does nothing it seems.
My System SpecsSystem Spec
03 Aug 2010   #9
Hipster Doofus

Windows 7 Pro x64 -- PCLinuxOS KDE4 FullMonty 2011
 
 

Not sure. Nothing is as simple as it should be.

On the main window see if you can figure out what one is doing what. That's how I sorted mine out. Watch the speed as you lower the fan.
My System SpecsSystem Spec
03 Aug 2010   #10
Evilclive

Windows 7 Home Premium 64-bit
 
 

Is there a BIOS setting that would prevent this program form working? I have automatic fan control turned off in BIOS.
My System SpecsSystem Spec
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 i5-750 temp issues




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