Question about HP Pavilion a1730n PC Desktop

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I have an HP Pavilion a1730n. For the past 5 times I turned it on, I received an error message Error: The System Fan Has Failed!Service PC to prevent damage to the system.PressF2 to Continue I ran HW Monitor, but do not know how to interpret the results. What should fan speeds and temperatures be? I Gene

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This is caused due to wire signals that are sent from the fan to the motherboard.

Open your system case and make sure the fan is running. If it is running then make sure the cable terminating on the motherboard is properly inserted. You can take it out and re-insert.

If issue persists, then you may have to change the whole fan or disable the warning option in BIOS which can be dangerous.

Posted on Mar 14, 2011

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The maximum temperature for most CPU's is usually around 65-75 degrees Celsius. I would also recommend to just replace the CPU heatsink and fan assembly just to be safe. You can buy this in PC parts retailers and it's not that difficult to install it yourself. This is an easy and cheap fix.

Posted on Mar 14, 2011

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Fan temperature and speed? Good question,. relevance is more towards the likelyhood that you've stored your pc on the floor and have dust/ debris which have gathered - a good cleaning of the fan may work, otherwise replacement is like 5 bucks... the can of spray air should be readily available at staples, unplug the power source and remove the cables, cover etc,. get into the unit and give it a good blast to see if that will suffice,. otherwise a cheap fan would do.
As far as the temperature of the processor which the fan cools - it goes to like 350 degrees as soon as it is powered up.. so it is best to be sure you have good airflow in and around the unit.
Best regards
Ck

Posted on Mar 14, 2011

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1 Answer

New case fan running but still getting error message system fan failed.


Did you try;

Power off, power unplugged to computer.
Press the Power On button, and hold it in. Hold for a count of 10 seconds.
Let go.

Do this procedure two more times.

Plug the computer back into power. WAIT 1 minute, turn the computer on.

This method clears CMOS Error Codes, and sets BIOS Setup back to the factory default settings.

http://h10025.www1.hp.com/ewfrf/wc/document?docname=c00864946&tmp_task=prodinfoCategory&cc=us&dlc=en&lang=en&lc=en&product=3340228#N436

CPU fan spinning at required minimum RPM's?

Not talking about the SYS_FAN (Case fan)



Regards,
joecoolvette

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1 Answer

I have an HP Pavilion a1730n. For the past 5 times I turned it on, I received an error message Error: The System Fan Has Failed!Service PC to prevent damage to the system.PressF2 to Continue I ran HW...


1. Check if fan is spinning. If not, replace with new one or check cables.
2. Check if there are no swapped fan connectors when reconnecting mb cables.
3. Check BIOS update on HP website. Choose your OS here: http://h10025.www1.hp.com/ewfrf/wc/softwareCategory?lc=en&dlc=en&cc=us&lang=en&product=3339287&
4. Check for a BIOS setting for disabling the fan monitoring.
5. Install a monitoring app which reports fan speeds and temps. See http://www.cpuid.com/softwares/hwmonitor.html
6. Check if CPU fan works.

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