CPU Fan Failed

[Clayton]

I have a HP Pavilion 8805 and when I start up the computer it says CPU Fan
failed system will shut down in 5 seconds, so I opened the case and the cpu
fan was not working which is a small 6cm by 6cm and 1cm thick. So I take out
the fan and tried in on another header in another computer's motherboard and
the fan is working ok, what would be the problem?

cheers

 

[Richard Urban]

The copper traces that supply the header could be burned through, creating
an open connection = no power.

--
Regards,

Richard Urban

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

I plugged the fan back in and it started running but only for a few seconds
and stopped, turned the pc on again and same thing! so it's a motherboard
problem?

 

[Richard Urban]

You could try plugging the fan into a different fan header. Please note
though that if the fan is drawing excessive current (defective) it could
burn out additional fan headers. Fans are cheaper than M/B's. Try a new fan
first.

--
Regards,

Richard Urban

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

Unfortunally I only have 2 fan headers on the M/B, 1 is the cpu fan and the
other is p/s fan

 

[Clayton]

Do you really think it could be the cpu fan? it appears to be working ok on
another computer

 

[Richard Urban]

Time to call HP and talk to India.

--
Regards,

Richard Urban

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

Thanks for that

Time to call HP and talk to India.

--
Regards,

Richard Urban

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

I brought a new fan today and everything is working fine now, strange how
this old fan worked ok in another computer.
Just one more thing, I noticed there is a cable with a 3 pin plug amongst
the power supply cabling, does this cable plug into the p/s fan header on
the motherboard? as it wasn't plugged into anything, or is it there for
monitoring?

 

[Richard Urban]

On my Antec power supply that cable is for monitoring the power supply fan
speed. You need the requisite connector on the M/B. Not all have it, I
imagine.

--
Regards,

Richard Urban

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

I do have two free 3 pin header on the mb that says P/S_FAN and SYS_FAN

 

[Richard Urban [MVP]]

Use the P/S_FAN header.

--
Regards,

Richard Urban
Microsoft MVP Windows Shell/User

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"

 

[Clayton]

done

Use the P/S_FAN header.

--
Regards,

Richard Urban
Microsoft MVP Windows Shell/User

Quote from: George Ankner
"If you knew as much as you thought you know,
You would realize that you don't know what you thought you knew!"