I have a Packard Bell iPower 6800sli PC. It recently powered itself off after 5 minutes. I opened the case and removed the heatsink and fan and cleaned the dust away as it. Looked semi clogged.. On re-installing the PC worked normally. The next day the same thing happened. On checking the heatsink fan it was not working. I bought a replacement fan and fitted it but the new fan does not work either. All other parts of the machie work and it powers up with no problems but the heatsink soon gets hot, so power it down to prevent damage. Why would the fan not work? What else could or should I check? They cabling is fitted correctly and I see no damage etc on the MoBo. Many thanks for any guidance.
Thanks for the replies. Yes I did put paste on, but as you said should not affect the fan. Blades turn freely on the old and new unit. Never entered the BIOS before but will try though only have around 5 mins before the PC powers itself down. How can I do a direct fan test? Again many many thanks for help. Hope it is not a case of my Bank Holiday looking for a new machine!!!
You could try a direct test using any battery and a little piece of wire. If you do it for a few seconds it should do no harm but at least you will find out if it or even they are working OK which should at least point you in another direction.
I have plugged the fan into a 3 pin socket located elsewhere on the MoBo, but cannot say what the pins are for as area around covered, and the fan works! Is it ok to leave left in to this point? So many thanks for all your help and advice so far. Have a feeling my PC has seen better days n maybe this is a warning to start looking for a new machine!