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‎09-24-2021 03:25 PM

HP Recommended

it's not that hard to pin out using a multimeter...................... the ground pin is easy simply connect one probe to a motherboard ground then touch the other probe to the fan pins one at a time using the continuity mode

 

now test pin 5 to pin 1(should be ground)

 

 the next pin (should be +12 volt)

 

to test,  power on the system  and confirm pins 1-2 are ground /+12v 

 

the remaining two can be found by powering on the system, connecting the gnd/pwr leads from the fan to the fan header

(pins 1-5 and 2)

 

and then connect the last two,  if the fan does not spin up/down on a reboot reverse the two leads (pins 3/4)

 

https://www.tomshardware.com/news/intel-core-i9-10900k-stress-test

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