View Full Version : Backside mobo cooling
heavenly4you2
10-03-01, 04:58 PM
Hi all , Just wanted to share the affect of cooling the backside of the motherboard , it give's me a drop down of 4\5 degrees celsius
Just used a 80 mm Panaflow ( nice thin fan) so it can be mounted on the inside of the sidepanel, this is a fan well worth the effort of cutting the hole !
heavenly4you2
10-03-01, 07:47 PM
Blow
Warlord2
10-03-01, 07:51 PM
I use to 80mm fans right now back there
makes thing nice and cool
outhouse
10-03-01, 08:08 PM
Hate to be the person with bad news but if your talking about your CPU running cooler well the bad news is your cooling the in socket thermistor which reads cooler but the CPU itself may not be affected much maybe one half centigrade, there was a big article on backside MB cooling and i jumped on the bandwagon did the mod and yep I had 5C cooler CPU temps and then the next day another article came out explaining that the temp readings were wrong and that the mod did not help that much except to give you bad temp readings because your cooling the thermistor more so then the CPU :( well since mine was already done I put a super small fan so that it does not stick outside my sidecase cover and mouted a screen over the 80mm hole and mounted the fan on the inside of the screen, this still gives me enough cooling to keep the warm spot cool and my temp readings for my CPU are very close to normal. but hey if your happy and its brought you stability where you had none before then i'm glad its working for you, for me when i did it i did not gain 1 point in FSB.
Warlord2
10-03-01, 08:16 PM
I can turn my fans off and on and they only make a 2-3 degree defference
Im also using water cooling and watercooling temps are normaly higher thin aircooling 2-3 degress
so I figure Im right where I need to be=]
WyrmMaster
10-03-01, 08:36 PM
I too have tried this and i have to say that id DOES work, i got a drop of about 2c, measured by a compunurse at the edge of the CPU core.
Huh, I'm one of those who tried it and got nothing at all. On a P3 no less, those have a built in thermistor so no false in-socket air readings. I'd imagine that in a case that already has good airflow-like mine- it would do little or nothing, but in a more stuffy case it would certainly help.
But if it works for you, do it! It also looks way cool to have matched grilled fans on either side of the case, all symmetrical- like!
Are you sure its cooling your CPU or just the thermomiter..."excuse the spelling"
cuz if you think about it your cpu is not connected directly on your board.
heavenly4you2
10-04-01, 07:41 AM
Well i guess it helps cooling overall at least , if you feel tha mobo around the socket than you'll notice it's getting pretty hot too , with the backside cooling it feels cool when i touch it.
I've read some stuff about it now and one say's it does cool the cpu a bit and another said it doesn't , anyway , like i said it cools at least the mobo round the socket and who now's what affect that might have on O\C performance?
Thank's for the reply's !!
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