When SLEEP is selected manually the fan spins at maximum speed non-stop

Hi,
I have HP Pavilion Elite HPE-180t PC, WIndows 7, Home Premioum, 64 bits.
Occasionally, I put the PC into sleep mode manually if I am finished with my work. Here are the steps I do:
1. Press Start
2. On the Shut down drop down list select Sleep
3. PC turns the fan speed up for a few seconds and then goes to sleep with the power button changing color from blue to yellow.
But once in a while on the third step the fan speed is cranked up to maximum (quite noisy), the button goes from blue to yellow, but the fan keeps running at maximum speed non-stop.
In these situations pressing any key on the keyboard doesn't affect this state i.e. the fan keeps running, and the PC is unresponsive to any keyboard or mouse input.
The only way I found to remedy this case is to press and hold down the power button until the fan stops and the PC shuts down completely.
Any suggestions on how to avoid the freeze up while going to sleep mode manually?

Hi,
I have the same motherboard in my HP e9280t. Open up your PC and use a can of compressed air and blow the dust out of the CPU heat sink, power supply, video card and system fans.
Open up the RUN window and enter: msinfo32
If msinfo32 doesn't show the bios level then you will have to boot into computer setup and find the bios level.
Look for the bios level. Bios version 5.29 is the latest and I have been running that level for a long time without issues.
HP DV9700, t9300, Nvidia 8600, 4GB, Crucial C300 128GB SSD
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Hello ,
let me know , is it normal fan spinning in maximum speed continually when playing games ?
Thanks .

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If that doesn't work, you may need to seek professional help. If you take it to an Apple Store and they recommend a logic board replacement, ask about a "Depot Repair." Instead of replacing the logic board on-site (which will whack you to the tune of US$700-1100), they send the computer to a central Apple refurb facility that fixes whatever they find wrong for a flat fee of about US$315 (last time someone reported using the service here). Turnaround is about one working week, and people who have taken of this service have reported being very pleased with the outcome.
You don't show a geographic location. This service may not be available if you are outside North America.

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When SLEEP is selected manually the fan spins at maximum speed non-stop

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