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CPU fan always at max RPM


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#16
happyrock

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because thats what says in the manual...i tried to attach a pic...problem loading it will try again later

Edited by happyrck, 15 October 2006 - 01:30 PM.

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#17
happyrock

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pic...still wont attach photo...look in the connections or connectors section of the manual...you will find it

Edited by happyrck, 15 October 2006 - 01:49 PM.

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#18
tomdrayson

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I've just read the "Connectors" section, it doesn't mention anything about dual core CPUs. Where are you looking?
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#19
happyrock

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in section 2.3.2 I tried at least 8 times to attach a screen captue of it to show you...won't work so you will have to look for yourself

Edited by happyrck, 15 October 2006 - 02:25 PM.

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#20
tomdrayson

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The only relevant part there is "...If you buy a a CPU separately, make sure that you use only an Intel-certified multi-directional heatsink and fan."

Is there a list of Intel-certified multi-directional heatsinks and fans somewhere then?

Can't find anything about dual core CPUs, why does that make a difference anyway?
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#21
happyrock

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Can't find anything about dual core CPUs, why does that make a difference anyway?

look in the manual....in section 2.3.2 ...they require it so my guess is it needs it


"
Is there a list of Intel-certified multi-directional heatsinks and fans somewhere then"

yep...... at intel's site
or when you buy one be sure to get a retail version...it will come with a approved heatsink and fan AND you will get a 3 year warrant on it versus the OEM version that has a 1 year warranty...it will only cost you about $15.00 extra
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#22
SRX660

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Your Mb is setup to run a "Pulse Width Modulated fan on the processor. Heres some info on them.

http://www.performan...roducts_id=3977

You can hook a 3 pin header to a 4 pin connector but you lose the speed control. That is why it is so loud. It runs at full speed all the time. I have used enermax 80mm manual speed controled fans adapted to aftermarket heatsinks to get around this problem.

http://www.directron.com/uc8fab.html

This fan lets you run quieter until you need more cooling. then you can turn up the speed until you dont need it again. I cut the fan control wires and hooked them up to a old fan control rheostat i salvaged out of a scrapped computer so i could control it from the front of the computer.

SRX660
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#23
tomdrayson

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I think we have established that it DOES NOT say anything about dual-core CPU requirements in my motherboard manual.
As far as I am concerned, there can't be a serious problem with using a heatsink/fan which isn't "Intel-certified", as long as it is socket 775 I can't see why it wouldn't work.

Anyway - is the fourth pin on my motherboard for RPM control? Another PC of mine with an older Asus board has a 3 pin fan connected to a 4 pin header and the speed is regulated perfectly - but there is a "target CPU temperature" option in the BIOS, which there isn't on this motherboard (P5B).

Edit: I started typing this before SRX660 posted

Edited by tomdrayson, 18 October 2006 - 01:14 PM.

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