ChipsetFan failed, confounded!

[DefragMyHead]

Hey guys (and gals). I am hoping yous can help me out with a problem Ive been having...my northbridge chipset fan failed not too long ago and Im at a loss what to do. I ordered a cooler master replacement fan hoping I could just dish the heatsink that came with it and tack the fan on to the stock heatsink, but the screws dont fit. So as of now I just stuck the coolermaster fan and heatsink(glue included) right onto my stock heatsink, eh it runs. But I know this isnt a permanent solution. I was wondering if anyone can recommend a permanent solution...I've seen super-big Zalman heatsinks (no fans included) but dont know if theyre the best option. And Im reluctant to take out my whole motherboard (AMD cpu) to put a replacement on. More seriously, I've downloaded SpeedFan to monitor my temps in the interim and there are two readings for something called LM75, which is rating at like 127 degrees celsius. But I have not been able to find out what exactly the LM 75 correlates to. I want to get my temps under control, and any help--as always--is whole heartedly appreciated.
-

 

[sPlAtOiD]

http://www.hmonitor.net/hmonfaq.html
This will tell you what you need to know about the Lm75.

 

[Nitestick]

seriously TAKE THE DANG BOARD OUT AND REPLACE THE HSF!!!!! its better to have a functioning motherboard and waste an hour or so on the installation than to fry a motherboard because you couldn't be bothered.

 

[DefragMyHead]

well spoken nitestick! but Im still unsure of the best avenue to take, specifically what cooling method to apply.

 

[Nitestick]

list your motherboard and someone will help you out with choosing an appropriate replacement of this one won't do the trick

 

[DefragMyHead]

I have an Asus A8N SLI Deluxe NVIDIA nForce4 SLI MCP, PCI Express with DDR

 

[Nitestick]

i think they have the standard plastic pushpins right? the ones with the springs? just look for a "replacement nf4 fan"

 

[DefragMyHead]

Due the fact that I have a 64 bit AMD, I think the whole mother board needs to be removed to put a new heatsink on for my northbridge...unfortunately I have not found a fan compatible with the stock heatsink

 

[Nitestick]

it does. its like that with almost all motherboards. the attachment for the HSF is similar to those used on some GFX cards