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anthonyjr

macrumors regular
Original poster
Sep 27, 2007
128
219
Ever since I installed my Radeon 3870 HD last week, I've been hearing a random/spontaneous "power" click (it sounds like the "power on" click when the Mac Pro is turned on).

I might hear it every now and then when I'm running 3D games, but there are no signs of computer glitching (or anything of the like) when it occurs. The fan is running constantly at a nice smooth rate, so the click isn't the fan powering up. I'm hoping to call ATI tomorrow... I just can't pinpoint the problem.

I'm running a 2.66 GHz '06 Mac Pro. I was wondering if any other new ATI 3870 users are hearing a click like this?
 
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