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CPU fan 4k+ rpm...

post #1 of 11
Thread Starter 
I just build my first computer with a phenom 965 x4 BE. Everything installed fine, but the CPU fan has been running at 4200-4600 RPM constantly, temps have been 39 and 40 C.

This RPM is pretty loud, I'd like to get it lower. I looked around in the BIOS for a way to control CPU fan speed but I didn't see anything obvious (I'm pretty new to this stuff; this is the first time in my life I've seen a BIOS). FYI the specifications for the BIOS says: AMI 8mb DIP flash ROM BIOS.

Is it a bad idea to lower the CPU fan speed? Will it get too hot/damage the cpu or MB in any way? Should I underclock it instead to reduce the heat produced? The most I will do is run wow and a few tabs in firefox at the same time so I don't really think I need all the speed that this CPU can deliver.

Also I was just reading the motherboard book a little more after getting everything up and running, turns out this mobo:
http://www.newegg.ca/Product/Product...82E16813153155
is only made to support CPUs rated at 95W and under. If I had known any such restrictions applied to motherboards I wouldn't have bought one that can't support the 125W AMD CPU. So far however everything has seemed fine (aside from the fan noise). Will this cause problems in the future? Or do I really need to push the CPU to it's limits to actually draw out the 125W it's rated at?

Would underclocking get rid of any risks? I don't really want to dissasemble, return, buy, and install a new more expensive motherboard.

edit: Also FWIW, I'm using a 650W corsair PSU, Radeon 4650, 4GB ram, and a 200GB HD

thanks.
post #2 of 11
If you want a more quiet computer then buy an after market cpu cooler for it.
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post #3 of 11
Change the fan out for something with lower rpm. Is it a stock heatsink or aftermarket?
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post #4 of 11
The Phenom II 965 cooler is REALLY loud.
It spins that fast because the CPU will get pretty hot if it doesnt.
Buy an aftermarket cooler if you want a quieter computer.

And you may do damage to the Mobo, CPU or both by having a 125W cpu in a 95W socket.
You could underclock and undervolt but It would not do much, if anything, to alleviate the fact that your CPU is out of spec for your motherboard.
I would HIGHLY recommend buying a new mobo or CPU.
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post #5 of 11
Thread Starter 
Quote:
Originally Posted by ShadowGun View Post
Change the fan out for something with lower rpm. Is it a stock heatsink or aftermarket?
Yes it's stock.
post #6 of 11
O.o Well there is a point when your just blowing instead of cooling your processor but I don't study thermodynamics. I just stick a fast fan in the back and a fan on the cooler to channel the air through. It helps touch as much cooler surface as possible.
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post #7 of 11
What I would do is pick up a good heatsink and put a silent fan or two on it so that way it'll give you good temps yet be pretty well silent. We can help you with this if you gave a budget
post #8 of 11
ooh steam player must add
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post #9 of 11
Quote:
Originally Posted by PhilWrir View Post
And you may do damage to the Mobo, CPU or both by having a 125W cpu in a 95W socket.
You could underclock and undervolt but It would not do much, if anything, to alleviate the fact that your CPU is out of spec for your motherboard.
I would HIGHLY recommend buying a new mobo or CPU.
That mobo can easily handle that cpu at stock speed. Most to all AM2/AM2+/AM3 mobo can handle more than 125w.
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SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
MonitorPowerCase
LG M2762D-PM Glossy Black 27" 5ms (1920x1080) Antec HG 900 Gerenic ATX Case 
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Hard DriveOptical DriveCoolingOS
SAMSUNG EcoGreen F4 2TB Plextor Black Blu-ray Burner Phenom II X4 stock Cooler Windows 10 
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post #10 of 11
Thread Starter 
Quote:
Originally Posted by dixson01974 View Post
That mobo can easily handle that cpu at stock speed. Most to all AM2/AM2+/AM3 mobo can handle more than 125w.
I don't understand. Why is it rated at 95W maximum if what you're saying is true?
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