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HP Motherboard issue

HP Recommended
Microsoft Windows 10 (64-bit)


Can someone please let me know why HP-own-mobo Hamburg’s pump header cannot recognize EVGA CLC 240 liquid cooler pump molex ? Or how to make the mobo recognize it ? (Right it gives me the 90b error even tho my cpu temp stay at 50 -60 degree doing stress test)


And how to ignore/bypass the 90b error if u dont have a cpu fan plug in to the cpu fan header ?





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HP Recommended


Welcome back to the forum.

I am not a HP employee.


This EVGA cooler should have a 4 pin motherboard connector. You have to connect this to the 3 pin or 4 pin motherboard CPU fan header.


I always connect this cable to the MB CPU fan header.


Some AIO LC pumps get power from the CPU fan header. Some systems need a SATA power connection.


I have no idea why you are using a Molex connection.



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