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Heatsink/ Heat Pipe / ThermoSiphon Cooling The cat will only make the mistake of putting its paw by your HSF once. :) Also the place to discuss the new high end heat pipe goodness.

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Unread 06-26-2002, 10:58 PM   #1
babybunny
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Default Ok, the 120mm P4 fan...

I recently got an Alpha 8942, a 80mm to 120mm fan adapter, and the Enermax 120mm fan with adjustable speed. So now my P4 1.8A is being blown on with a crazy huge 120mm fan, a great sight!

Ok, using the Asus P4S533 and its PC Probe software (sorry, too poor for thermistor) with the P4 1.8A @ 2.7 and the voltage at 1.6 with the fan on low (1500RPM, 67.28CFM).

Idle is 35C, load is 47C, ambient is 25C. Are those temps any good? Remember, I'm using the onboard sensor, so it's probably not accurate.
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Unread 06-27-2002, 04:39 AM   #2
Brad
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try increasing the fan rev's and see what temps you get. I think those temps are ok, possibly a little high, remeber the P4 boards don't have a thermistor, they use the P4 onboard one, so the temps will be accurate
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Unread 06-27-2002, 11:33 AM   #3
babybunny
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Whoa, I never knew that about the P4 and their internal thermistors. Thanks for the reply. Increased the RPM to 2300(94.92 CFM) and the temps decreased to 32C idle and 44C load, and the ambient is 26C. Any good?

I'm kinda dissappointed in this. I thought that it would be a lot better with the huge fan and enormous airflow.
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Unread 06-28-2002, 03:28 AM   #4
Brad
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buy an 80mm from kdcomp or someone and just try it out to see how loud it is and how it performs. Maybe the big enermax doesn't have much backpressure. You might want to try a 120mm Panaflo M1A
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2x 2400+ at 2288mhz (16.0 x 143), Iwill MPX2, 2x Kingmax PC-3200 256mb sticks, 4x 20gb 60gxp in Raid 5 on a Promise SX6000. Asus Ti4200 320/630. Cooled by Water
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Unread 07-11-2002, 11:54 AM   #5
Grendel99
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Try reversing the fan so it's sucking, Alpha's are designed so the fan is sucking away from the heatsink...
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Unread 07-13-2002, 04:53 PM   #6
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hmm in that case, my p4 is frying high. on my TH7II-Raid, the winbond software reports a 95C+ temprature.
i shut it off because my computer didnt seem to have any problem, nad pc helath status in bios never gets higher than 46C on it, btw, im using a standard heatsink and fan on it, i never got my Glacialtech Igloo 4300 ( .
cant ever seem to find out why it reports so high temps
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Unread 07-15-2002, 01:58 AM   #7
Brad
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just try remounting the heatsink again, if the temps don't change then you'll just have to accept it
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Unread 07-15-2002, 07:18 AM   #8
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yeah but the weird thing is, that i think its trying to report a sensor that doesnt exist´.. or maybe, i just used TOO MUCH PASTE.
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Unread 10-15-2002, 10:25 PM   #9
Drummahjake
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I am running an AX-7 with an 80-120 adaptor with the same fan. The results are less than stellar, I think that there is a lot of air being blown back and not actually hitting the heatsink. Also, too noisy running at 2300rpm, so I am H2O cooling soon.
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Unread 10-27-2002, 11:53 PM   #10
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With HSF's as big as the recent alpha's and AX-7's it's wise to move the power supply because there usually isn't much space between them and the fans end up working against each other.

Clearing the area around the HSF can lower the cpu temp by at least a few degrees.
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