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Top Student
juliamccormac
Posts: 3
Member Since: ‎12-18-2011
Message 1 of 6 (5,179 Views)

the 90B system fan isn't working properly. What can I do to solve this problem?

HP Pavillion dv7 Product no A1T85UA#ABA   windows 7 operating system,  system fan 90B is not running properly and computer can overheat and damage the computer.  If I don't hit enter immediately, the computer shuts off.

Associate Professor
Sanchertx
Posts: 882
Member Since: ‎11-17-2008
Message 2 of 6 (5,173 Views)

Re: the 90B system fan isn't working properly. What can I do to solve this problem?

You can try to do a Hard Reset to see if the issue will go away.

( see below )

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01684768&cc=us&dlc=en&lc=en

 

If your Fan is truly failed as indicated by the BOOT hardware tests. I would recommend calling HP support @  1800 hp support to schedule a service.

 

 

If the computer display remains blank and does not boot into Windows, or some device stops working, or the computer freezes, it may be helpful to perform a hard reset. A hard reset will erase all of the information in the computer's temporary memory and restore functionality. Many times, peripheral devices like USB drives, firewire devices, USB memory sticks, and even SD cards can interfere with the normal boot process. Doing a hard reset will force the system to clear and then reestablish the software connections between the BIOS and the hardware. Other problems that can be resolved by performing a hard reset include the keyboard not responding, or the PC not coming out of hibernation or sleep mode, or the PC freezing during normal operation.
When performing a hard reset, you must disconnect or remove all devices. You should start and test the computer by itself, and then reconnect one peripheral device at a time. To resolve the start up or operational problem, you should run the HP Support Assistant, or manually install all updated drivers from Microsoft and HP.

 

Performing a hard reset
To perform a hard reset, follow the steps below.
  1. Unplug the AC adapter from the notebook PC.
  2. Remove the battery from the notebook battery compartment.
  3. Remove the computer from any port replicator or docking station, disconnect cables to printers or devices such as external monitors, USB memory sticks or SD cards, headset or external speakers, mouse or auxiliary keyboard, turn off WIFI and Bluetooth wireless devices.
  4. Press and hold down the power button for about 15 seconds to drain any residual electrical charge from the capacitors that protect the memory.
  5. Insert the battery and plug the AC adapter back into the notebook PC; but do not connect any of the peripheral devices.
  6. Press the power button to turn the notebook PC back on.
  7. If prompted to boot into Safe Mode or select a special type of start up, use the arrow keys to highlight Start Windows Normally , and then press the enter key.
I am an HP employee.

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PhD Student
Bookworm
Posts: 945
Member Since: ‎06-12-2009
Message 3 of 6 (5,173 Views)

Re: the 90B system fan isn't working properly. What can I do to solve this problem?

Hello, I'm going to ask a couple of questions to see if we can help you.

When did this issue first start?

Can you get the PC to boot to Windows?

if so please tell me the BIOS version, you can see it by holding down the "fn" key and pressing the "esc" key

 

There are other good tips in this link but we should start with the BIOS.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01657439&cc=us&dlc=en&lang=en&lc=en&product=518...

 

Thank you

I am an HP employee
Knowledge is power...Power to the people
Top Student
juliamccormac
Posts: 3
Member Since: ‎12-18-2011
Message 4 of 6 (5,170 Views)

Re: the 90B system fan isn't working properly. What can I do to solve this problem?

It started just after I started installing.  I received it about a month ago.  The version is HP F.12

Top Student
juliamccormac
Posts: 3
Member Since: ‎12-18-2011
Message 5 of 6 (5,164 Views)

Re: the 90B system fan isn't working properly. What can I do to solve this problem?

Sorry but your solution didn't work.

Student
kavi_prakash
Posts: 1
Member Since: ‎08-13-2013
Message 6 of 6 (1,658 Views)

Re: the 90B system fan isn't working properly. What can I do to solve this problem?

It's Working.................................

 

If u got this "the 90B system fan isn't working properly".

 

Just remove the battery and use with power connection for some hours.

 

try this once.

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