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Swiftech MCX159 Chipset cooler experience

C

c1001

Gawd
Joined
Oct 24, 2004
Messages
943
I put a Swiftech MCX159-CU on my Asus A8N-SLI Deluxe after reading some recommendations here.

I found the Sunon maglev fan that came with it to have a noticeable zip-like sound and replaced it with a 40mm SilenX fan that I had laying around. It puts out noticeably less air than the thicker Sunon, but it is quieter and seems to cool the copper pins just fine.


Last night I took off the fan to test it in passive mode. I know of the Zalman blue colored aluminum heatsink that is passive, and I figure that copper would be more effective than aluminum at transferring heat. I found the heatsink to get uncomfortably hot to the touch after no more than ten minutes of running, and since it touches my 7800gtx, I started getting concerned. The motherboard didn't start freaking out, but the A8N-SLI Deluxe doesn't have a chipset temperature reader.

Does anyone run this heatsink in a passive only mode?
How hot should it get and be considered to be normal?
 
I wouldn't run it in full-passive mode, seeing how the heatsink fins are pretty densely packed. You need good spacing between all the fins for air to flow through, and with the MCX159-Cu, that's where the fan comes in.
 
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