Where is my secondary Heatsink?
Hey there,
can anyone please tell me, where i can physically find the "Power Secondary Heatsink" Temp Sensor ?
iStat Pro tells me that the Temp sometimes runs up to 90°Celsius (approx 194°F) (with a CPU Load up to 60% )
IDLE the 2nd Heatsink is about 60°C - 75°C (140°F - 165°F)
'''Today i disassembled the iMac completely and i looked for all those Temp. Sensors, but i couldn`t find anyone on a "Heatsink" only near the CPU & the GPU, Ambient, Display, ODD,.
is it maybe on the Power Adaptor?
'''
1,5 Years ago, i upgraded a SSD -CORSAIR Force 3 and to Control the HDD Fan i use SSD-Fan Control,
(it runs Manually 1700Rpm, cause the S.M.A.R.T. stat from the SSD couldn`t be read out by the iMac... don`t know why, maybe a Firmware Bug)
thx for your help!
Questa è una buona domanda?
4 Commenti
I do believe the power supply has a thermo sensor on one of the heat sinks. As far as a firmware bug, no, I suspect you didn't properly connect the HD thermo sensor. Did you not remove it from the HD when you swapped it for the SSD? So it could be mounted onto the SSD.
da Dan
Hello Dan,
no the ThermoSensor HDD is just a Cable with a Connector which is plugged in to the Original Apple Seagate HDD, and plugged in to the Logic-Board.
The Corsair SSD has not the Specific Firmware to Send TempInformations to the SMC. either not the Connector-Input to plug in the Cable.
The Temp Sensor for the HDD is not one like the Temp Sensor ODD or the other ones (Electrician would say: it`s not a NTC (negative temperature Coefficient or PTC (positive temperature Coefficient). Its only a Connection between HDD Firmware and Logic Board.
da Shane54
Apple is consistent with their temp sensor's all of them as far as I've seen are a diode type. How it is used within the circuitry of the system (NTC (negative temperature coefficient or PTC (positive temperature coefficient), is really not needed to be known on the most part (unless you are trying to reverse engineer things here).
da Dan
yeah, you`re maybe right, don't know... anyway... next time, i disassemble the iMac i will take a look at the Power Adaptor, maybe there is a Temp Diode ;)
da Shane54