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Wanted: replacement low-heat CPU for media desktop that runs too hot

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April 19, 2013 8:04:49 AM

Thanks in advance for any help

I have a 4 year old desktop i use as a Win7 media center hooked up to a flatscreen.

http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en...
http://www.newegg.com/Product/Product.aspx?Item=N82E168...

CPU: Intel Core 2 Quad Q6700(2.66GHz)
Motherboard: Intel G33 chipset
Case: mid-size ATX

Can anyone recommend a replacement CPU that will run cool? I'm also willing to replace the motherboard if needed.

The cpu/computer runs very hot, even with cpu/case/power-supply fans. I want to know if there is a new processor, and/or motherboard I can swap in to reduce heat that will fit in the case. I'd like to preserve the mem, video card, tv tuner card and power supply, etc. I understand there are two or maybe three standard mobo sizes. If both need to be replaced then Id also consider AMD.

There is an infra red receiver which connects to the back which then connects to a couple of pins on the motherboard. So the new board (if needed) will need to have the same pins. (not sure if all boards have these inputs)

HH
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April 19, 2013 8:24:55 AM

If you are willing to replace the MB, you can get pretty much any i3 that has 4 numbers in it (like the 3220) and it will run cool and quiet. If you want to stick with just the CPU change you are probably looking for a used one on this list (since they are 65w TDP instead of 105w)

Core 2 Duo E8400
Core 2 Duo E8500
Core 2 Duo E8600
Core 2 Quad Q8400S
Core 2 Quad Q9505S
Core 2 Quad Q9550S
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April 19, 2013 8:42:56 AM

It may prove difficult to find a replacement motherboard that has the same characteristics. Can you install additional quiet fans to keeep the system cooler? Where does the heat come from? The CPU (it has to be quite busy to get really hot) or the PSU? A very efficient PSU would probably help.
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April 19, 2013 10:08:52 AM

+1 for GhislainG

Intel® Core™ 2 Duo and Intel Core 2 Quad Processors that had the "S" for power "S"aving were very popular and after we moved to the 1st generation Intel® Core™ processors we didnt offer these processors at the start with some the supply of them was quickly used by businesses that would see large power savings with their power bill by making the change to them. So due to the time involved (since they were discontinued) and the high demand of the processors in question You will have a hard time finding them or the boards to match up with them.
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April 19, 2013 11:14:18 AM

Isn't quad core a bit over powered for a media center?

You could try down clocking and under volting the CPU, or even turning off 2 cores.

Or move to a low wattage Ivy based Pentium/i3.
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April 19, 2013 12:30:33 PM

I have a Q6600 that runs at 25-30% average CPU utilization 24x7 and all cores normally stay below 50°C using the stock cooler. The air coming out of the rear exhaust fan is just slightly warm, but the air coming out of the PSU (80 Plus Bronze) is much warmer.
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April 20, 2013 9:31:25 AM

Hi,

The problem turned out to be the factory installed video card from HP.
Turns out nvidia geforce 9500gs has had many problems. With a clean fan the card produced a lot of excess heat even when it was not being taxed. I just replaced it with a basic non-fan video card and the heat problem is no more.

Thanks for all the help.

HH
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April 20, 2013 9:41:01 AM

hiccuphell said:
Hi,

The problem turned out to be the factory installed video card from HP.
Turns out nvidia geforce 9500gs has had many problems. With a clean fan the card produced a lot of excess heat even when it was not being taxed. I just replaced it with a basic non-fan video card and the heat problem is no more.

Thanks for all the help.

HH
That matches what I did for my Q6600 system in which I installed a fanless GPU.
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