Stable speed for NB fan

[techies05]

Hi all,
Currently the NorthBridge fan on my MSI Neo4 Platinum is running at 7670-8000 rpm is that too fast? If so how can I lower it? What is a good speed for the fan?
Thank you for all of your replies
System Spec:
3200+ Venice
MSI Neo4 Platinum
Gigabyte 6600 Gt
250 Gb Baracuda
1 gb Dual Channel Kingston Hyper X

 

[rise]

i find that with my dfi i can run it at 2000rpm and it really doen't make a difference. the case air flow is much more imortant. you can run like an instance of prime large with rthdribl and watch the temps. i usually set it around 5,000 rpm and then lower it until i see the temps rising. then leave it there for about another 30 mins and see if it rises or not.

since putting in my 7800gtx however i need to run it at 4000 rpm when under load. the card sits right on top of it.

 

[techies05]

Woaa then my fan must be running too fast can someone tell me how to lower it?