I have an HP ML150 G6 server that HP made 'End Of Life'. I added a second processor to the system but then was unable to get past POST due to a missing system fan. I found a diagram that showed that the ML150 G6 required a SYSFAN1 (or redundant SYSFAN2) in a two processor configuration. What I needed was a system fan (513927-B21) but this seems to be next to impossible to find for sale anymore.
I tried to use a standard PC cooler with a fan for socket 1366 and rotate the connector to the motherboard 180 degrees. Ok, the connector did not match perfect (bending some connection legs) but it seemed to work. The machine could still not boot because the RPM was not in the valid range though.
Is there an alternative to the 513927-B21 fan that can be used to solve the problem of a missing SYSFAN in a 2 CPU configuration? Or maybe a total bypass of the test?