My Mac Pro loud GPU fan?

Amethyst

macrumors 6502a
Original poster
Aug 8, 2006
517
18
After my Mac Pro boot my GPU fan will loud up.
I can stop it loud by sleep my mac pro and it will be back normally.

My Mac Pro is 2009 DP and 7950 PC flash GPU.
Have try another GPU such ass GTX 680 Flash and GT120 original.
and this problem still here. Do your guys can fix it?
 

m4v3r1ck

macrumors 68020
Nov 2, 2011
2,341
347
The Netherlands
I believe it's normal when (re) booting your MP, the fan(s) of the GPU spins to a max and then turn to idle mode. With the 8800GT it's just the same.

GL & Cheers
 

deppest

macrumors member
Oct 6, 2009
67
8
I have the same issue, i.e. loud GPU fan noise and high PCIe-RPM directly after boot-up. While it does quiet down after a while it helps to briefly tax the GPU (i.e. with some GPU benchmark tool such as OpenGL viewer, furmark) after which the fans come down very quickly. I think this has been reported before.
 

ActionableMango

macrumors G3
Sep 21, 2010
9,348
6,367
Try slot 2.

If that doesn't fix it, you'll either have to use your sleep trick or tax the GPU trick.
 

TzunamiOSX

macrumors 6502
Oct 4, 2009
310
51
Germany
Same Problem since 10.9.2. (PCI-Fan spinnig high)

Macs Fan Control help me to bring down the PCI-Fan and run it at normal speed of 900 RPM.

----------

I have the same issue, i.e. loud GPU fan noise and high PCIe-RPM directly after boot-up. While it does quiet down after a while it helps to briefly tax the GPU (i.e. with some GPU benchmark tool such as OpenGL viewer, furmark) after which the fans come down very quickly. I think this has been reported before.
CUDA-Z works also and you must only start the Programm. But you must have the CUDA Driver installed.

Macs Fan Control was a better choice for me.