Powermac G5 : thermal support
I've got a Powermac G5 (2*2GHz, Powermac 7,3, with Radeon 9600 ; with two
hard drives) and found some oddities with thermal support on this machine.
You might already know that thermal support for G5 is broken on Jessie
from a while now. The last time I tried to boot and upgrade my Jessie
partition, it still wasn't OK and the i2c modules couldn't handle the
fans at all. They ran at full speed. Is this bug corrected ?
But there seems to be a bug in Wheezy too : thermal support works as
expected but I noticed some oddities with the drives temperature.
A year ago, one on my drive died and I began to monitor those temperatures under linux with Conky and hddtemp, and under OSX with iStatsPro. Drives temperatures in Wheezy are always higher than in OSX. Typically, I have the following measurements :
- OSX : 40°C (104 °F) and a drive fan which can run at more than 1000 rpm.
- Linux : 50°C or even 55°C (more than 120°F) and a drive fan stuck at 300 rpm.
It find these temperatures under linux a bit too warm.
Is this a bug ? Can I tweak the fan speed by myself or does it need some kernel debbugging ?
Best regards,
Bertrand Dekoninck
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