Loud CPU fan - caused by vibrations?

[sg5084]

Hello, I've scoured the internet for answers to this question, and I've found some helpful things on this site - so I guess I'm in the right place.

My problem is that since I have installed a new graphics card (hd 5770) (and subsequently upgraded my power supply), my cpu fan has been really loud. At the moment, where all I'm doing is typing online the cpu fan is spinning at 3750 rpm (I don't know whether that's fast, but it sounds it!). After playing games this exceeds 6500 rpm and causes a lot of vibration, which I think is making the noise.

I only have the oem fan, but I'd never noticed any noise trouble before installing the new components, is it a case that the fan is not powerful enough to keep up?

The temperatures I have are fine (I think), at the moment the MB is 44 degrees and the CPU is 40 degrees, after playing games this goes up to approximately 51 and 49, respectively.

In short, should I upgrade the CPU fan (if so, what would you recommend)? Or could there be another problem that I haven't thought of?

Specs:
Phenom II X6 1055T
6gb RAM
ASUS M4A78LT-M motherboard
Radeon HD 5770


Thanks in advance

 

[joedastudd]

What graphics card did you go from?

If it was integrated or something low end then the 5770 will be increasing the ambient temperature in the case.

Add some case fans to help with the air flow, you should be able to get some low speed (1200rpm area) and low noise fans for about $10 or so.

 

[sg5084]

It was an HD 4350, I've got a case fan that runs at about that speed.

I've opened the case up when the noise has been at its loudest, and when it's at its quietest and the noise seems to be coming from the CPU fan - The noise from the graphics card isn't too bad.

 

[davidgermain]

It easy to knock the CPU when installing new cards.
As fans get old the bearings wear out, and they get settled into running in the same orientation and place on the bearings. could be time to simply replace the fan.

Measure the fan and look for an arrow on the side of the fan. look at how many wires it has (probably 3) and replace like for like or as close as possible.

For a few pounds it will be quiter and have less risk of over heating you CPU if it fails totally.

hope this helps.

 

[sg5084]

It easy to knock the CPU when installing new cards.
As fans get old the bearings wear out, and they get settled into running in the same orientation and place on the bearings. could be time to simply replace the fan.

Measure the fan and look for an arrow on the side of the fan. look at how many wires it has (probably 3) and replace like for like or as close as possible.

For a few pounds it will be quiter and have less risk of over heating you CPU if it fails totally.

hope this helps.

Do you mean replace just the fan? Or the fan and the heatsink?

 

[davcon]

What case do you have?

 

[sg5084]

What case do you have?

It's just a basic case, an own brand of pcspecialist.co.uk - 406mm x 180mm x 420mm (Approx H x W x D) that's the dimensions