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Forum Discussion
ReadyNAS Pro: System temp running out of spec
In the last weeks I did have several times where the CPU temp ran out of spec. What's annoying to me is that the cpu fan runs at maximum 1506 rpm?! Shouldn't it rotate much higher to avoid temp runnin...
I did the test and downgraded to 4.2.11 in order to compare it to 4.2.13:
a) Behaviour of the cpu fan is the same. It maxes out at around 1.500 rpm
b) Behaviour of the sys fan is way different: with 4.2.11 it rotates at around 1.900 rpm after calibration in comparison to 1.100 rpm with 4.2.13!
Because of the higher rpm of the sys fan when using 4.2.11 the whole system is about 6-7 degrees cooler and so temps are not running out of specs!
Finaly two things are being curious to me:
a) Why does the cpu fan generally max out at around 1.500 rpm?
b) Why does the sys fan rotate with about 70% more speed unter 4.2.11 in comparison to 4.2.13?
Additional info: 4.2.12 shows the same behaviour as 4.2.13. So there seems to be a change between 4.2.11 and 4.2.13 in the calibration of the sys fan!
So only workaround for me today:
a) downgrade to 4.2.11
b) calibrate sys fan
c) upgrade to 4.2.13
@Chirpa: Hope that helps to fix things?!
a) Behaviour of the cpu fan is the same. It maxes out at around 1.500 rpm
b) Behaviour of the sys fan is way different: with 4.2.11 it rotates at around 1.900 rpm after calibration in comparison to 1.100 rpm with 4.2.13!
Because of the higher rpm of the sys fan when using 4.2.11 the whole system is about 6-7 degrees cooler and so temps are not running out of specs!
Finaly two things are being curious to me:
a) Why does the cpu fan generally max out at around 1.500 rpm?
b) Why does the sys fan rotate with about 70% more speed unter 4.2.11 in comparison to 4.2.13?
Additional info: 4.2.12 shows the same behaviour as 4.2.13. So there seems to be a change between 4.2.11 and 4.2.13 in the calibration of the sys fan!
So only workaround for me today:
a) downgrade to 4.2.11
b) calibrate sys fan
c) upgrade to 4.2.13
@Chirpa: Hope that helps to fix things?!
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