Posts: 1
Member Since: ‎04-28-2011
Message 1 of 3 (1,445 Views)

HP pavilion dv7 4170ED fan cooling issue



Today i have downloaded the 6 new updates from windows.

I restart the notebook and i have a black screen. With the info Fan cooling error. Error 902 i think...

I restart the notebook 3 time's with this error. after this 3 time's, the error don't come again. I want to know what the problem is and a solution.


Sorry off my bad english, i'm a dutch boy...

Posts: 2,055
Member Since: ‎03-19-2011
Message 2 of 3 (1,436 Views)

Re: HP pavilion dv7 4170ED fan cooling issue

Downloading and installing these drivers may fix the issue...




Chipset Driver


BIOS Update

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Honor Student
Posts: 3
Member Since: ‎06-14-2011
Message 3 of 3 (1,284 Views)

Re: HP pavilion dv7 4170ED fan cooling issue

I bought a DV7 Pavilion in Feb. 2011 and just recently it has started to report Fan error 90B on initial start up.


At first I thought this was due to a software conflict and various upgrades later (including BIOS) I thought I had solved the problem. Now after 3 days of error free start-ups first thing in the morning I powered up only to be greeted with Fan error 90B.


I see the above mentions a chip set update in addition to a BIOS update I did not see anything like this on the PC BIOS support page. Can anyone confirm whether or not restricted air flow might cause this fault i.e.. a blocked vent?


I have on HP support instruction returned the PC to factory state and then carried out a series of OS and BIOS updates downloaded from HP support site relevant to my PC model. I use the machine heavily each day and reluctant to return for what appears to be a system check and reset back to factory state only to find on its return after 2/3 weeks the same problem appears.


Any meaningful help advice would be very much appreciated.

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