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Pump Speed (90b)

HP Recommended
Omen HP Desktop PC - 880-072na
Microsoft Windows 10 (64-bit)

I woke up this morning, powered up my pc. When I was trying to load things it felt slower and more laggy than usual.

I was told to restart as soon as possible for a BIOS update, so I complied. After that BIOS update the PC began its usual restart after updating but now I am met with a message about on of the fans not operating correctly. The pc then shuts down after 15 seconds.


After a few hours I tried to power on the pc again and it turned on normally. Though I was unsure if it was safe to use. I then powered off the computer. I came back to it around an hour later and now the problem has returned again with the same warning. Something about Pump speed 90b. I not really good with this kind of hardware and/or software problems.

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Message 2 of 2
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HP Recommended



Normally error 90B means faulty fan(s). In many cases, this is can be fixed using the following guide




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