CPU/Mobo heating issues

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vishalk

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hi,

on saturday i have assembled my pc, the config of which is as follows.

intel c2d, 2.33ghz, intel DG33FB mobo, 2gb transcend@667mhz, 500gb sata seagate hdd, gigalan plus monitor, microsoft keyboard & mouse.

the issue is that 2 intel desktop utilities is showing me some high temp in 2 components of the board. the ICH, I/O controller hub is showing me 80*c and the MCH, memory controller hub is showing me 67*c.

can someone explain me why is this happening and what can i do in this case. do i need to replace the motherboard?
 
According to Intel specs (http://download.intel.com/products/motherboard/DG33BU/tps.pdf) -

the max temperature allowed for the MCH (i.e. the Northbridge right in the middle of the board) is 97C and for the ICH (the Southbridge in the lower corner of the board) is 92C. So the temps seem within their stated limits. The issue is probably with Intel's monitor having set the thresholds too low.

Also mentioned in the PDF i linked you to is that the MCH will display 66C as the lowest threshold.. i.e. temps below 66C for the MCH will not register.

Someone with a DG33 board can probably confirm this, these are just my assumptions based off reading their PDF :)
 
hi,

thanks mate for replying to my concern. if what the pdf states is correct, then i am at no risk whatsoever. however, my concern si that i am using the DG33FB mobo and the pdf is for DG33BU board.
 
Also use a third party temp tool and check. The CPU temps are the most critical temps to look out for...

Also if you can improve the airflow within the cabinet...
 
hi sahil@aces,

thanks for replying dude but what i am unable to understand why all this is happening with a brand new cabinet. i am using a vip 858 with additional fan on the cabinet. the issue is only with the i/o controller, the ich and the memory controller hub the mch.
 
^^ Lol brand new or old, VIP cabinets are one of the worst.

Btw check temps using another software like everest or speedfan etc.
 
DG33BU ICH high temperature
Even at initial boot ICH temperature is in the region of 60+ degree Celsius. Please suggest what to do?

I am not Overclocking - (DG33BU does not have a provision in BIOS for OCing)

System details
Intel E6750 C2D
DG33BU mobo (in built grafix)
350W PSU
1GB DDR2-667MHz
120GB seagate SATA

It is a self built system. It works except for the high temperatures. Can run apps, even some gaming, but have not allowed the temperature to rise beyond 90s

The power supply voltages are normal (as seen from Intel Desktop utilities). Processor runs cool at 47 deg c, motherboard at 46 deg c. The ICH temperature is in the region of 80+ a few minutes after boot up and goes 90+ after three or four hours of running. The MCH is about 65+ deg c. This happens even with out gaming. Just Firefox, download manager and antivirus are running. This happens even when memory or processor intensive applications are not running.

There are three fans - power supply unit fan, cabinet fan and the processor fan - the processor fan is running at ~1000RPM.

There are no wires obstructing air flow.

Help appreciated.
 
Im pretty sure that you have not attached the heatsink properly.

Your cpu temp @ idle should be around 35.
 
racha, what temp monitoring utilities are you using?

Most of the temp monitoring utilities that you get with the motherboard or the one downloaded from the intel website reports incorrect Processor core temperatures.

For reliable temperatures, please use one or both of the following:
1. CoreTemp
2. SpeedFan

If you are not already using these, please try them and let us know if you still report high temps (which is 65 deg C and above at 100% load) on your cores.

You might want to use testing tools like Prime95 to test the temps.

Also refer to the following guide for ideal core temperatures for your Core 2 Duo/Quad processors and other detailed information: Core 2 Quad and Duo Temperature Guide
 
I use Intel Desktop utilities. The temperatures in BIOS also indicate the same.

I have no problem with CPU temperature - this is about 49 deg C

The mother board temperature shows 66/67 - The motherboard datasheet/manual says even if the temperature is well below 66 the indication (minimum would be 66)

The problem is only with ICH - I/O Controller Hub temperature - shows more than 80 Deg C.

The heat sink is attached properly to the ICH chip.

I am posting now from Ubuntu Linux. Once I switch to Windows, I will check the temperatures with the utilities you have suggested and post.

Thanks for your response.
 
Temps are fine, my DG965WH runs similar temps. Verified by BIOS, utility, and by a temp probe on my multimeter. For a stock heatsink in normally vented cabinet you will get 20 degrees above room temp. This is totally normal - if you want lower temps you've to upgrade the heatsink.

I wouldn't worry, they're well within spec. My ICH goes to 90 degrees and it's perfectly healthy, no freezing or BSODs.
 
racha said:
I use Intel Desktop utilities. The temperatures in BIOS also indicate the same.

I have no problem with CPU temperature - this is about 49 deg C

The mother board temperature shows 66/67 - The motherboard datasheet/manual says even if the temperature is well below 66 the indication (minimum would be 66)

The problem is only with ICH - I/O Controller Hub temperature - shows more than 80 Deg C.

The heat sink is attached properly to the ICH chip.

I am posting now from Ubuntu Linux. Once I switch to Windows, I will check the temperatures with the utilities you have suggested and post.

Thanks for your response.
Click to expand...

Sorry I incorrectly attributed the temperature issues to the CPU whereas it was your motherboard that was facing the problem. Shows how much I know :S

Anyways, for reliable temperature monitoring, please use this tool:
Download Motherboard Monitor 5.3.7.0 - A tool that will display information from the sensor chip on your motherboard - Softpedia

Compare the readings you get here with the Intel utilities.
Also I wouldn't trust the utilities shipped with the motherboard, as most of them are quite unreliable in reporting accurate temperature information.
 
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