chipset fan not spinning

[papaschtroumpf]

I have an older computer with a KT3 ULTRA MSI motherboards (Via KT333 based) and the fan cooling the chipset has stopped spinning some of the time, causing lockups.

when I start the mobo sometimes it spins just fine, other time I can see it move a little bit (1/8th of a turn or less) then stop. it seems that if I "launch" it with a pair of tweasers, it starts spinning normally most of the time.

As far as I can tell it's not a bearing issue, the fan appears to be spinning pretty freelye, so I'm guessing it's either a supply issue or a "motor" issue in the fan.

what are my replacement options? can I easily find a new fan? it there a resik that even a new fan might not spin right? would powering the fan from a separate supply (it's plugged in the mobo connector) be an option?

Thansk

 

[papaschtroumpf]

lol, isn;t it funny? the only answers I get are from people trying to sell me their mobo as a replacement in the "for sale" section.

 

[chucky2]

RadioShack may have a cheap little fan you could use...I did that for the 3DFx Voodoo3 2000's I had when I flashed their BIOS up to 3000 level.

Chuck

 

[keldog7]

See if a Zalman NB-47J heatsink will fit onto that board. If so, clip the old fan off it, clean the underlying chip, apply some NON-CONDUCTIVE thermal interface (such as Arctic Silver CERAMIQUE), and bolt the heatsink onto it. I did this mod intentionally on one of my 939 boards. If the NB47J doesn't fit, I'd bet that Zalman sells another HS which WILL fit.
-A

 

[imported_Truenofan]

there's always the thermalright northbridge cooler as well. that works quite nice, its basicly a block of aluminum with fins drilled out of it and a fan on top, looks kinda like the regular heatsinks by them.