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Replace PSU fan, Please help.

post #1 of 10
Thread Starter 
Hi, I have a PSU make noise since new, made by OCZ, it has three years warranty, send them a Email, was told have to send it overseas myself ( be careful when you buy a product), cost more than the PSU itself.
So I decide to replace the fan myself.
I have a case fan in same size not in use, the fans on PSU is 12V 0.45A and the one I want put on is 12V 0.16A, can I use it? Thank you.
Edited by alexgt - 1/14/11 at 5:55pm
post #2 of 10
I would try to match the specs of the fan as close as possible. With only the amperage draw we can only assume the replacement fan will provide less airflow. Why not post up the model numbers of both the fan in the unit (that is broken) and the fan you want to use as a replacement?
 
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post #3 of 10
Thread Starter 
Thank you, that's very fast.
Sorry, the PSU is OCZGXS600, 600W, the info I can find on original fans said 12V 0.45A, nothing else useful, and the one I want use is a Coolermaster A12025-12CB-3BN-F1, DV12V 0.16A.
I want math them but dont know where to buy in Australia , if it does not fit, I may try to order one form EBAY.
post #4 of 10
Original OEM FAN




Protechnic Electric MGA12012HB-O25 120 x 25mm fan

The slope is set at ~1300rpm (min load) and goes up to 2200RPM at max.

I would go with a no less than a 1800RPM Ball Bearing Fan.

Or, whatever you can get locally thats close to the original fan specs.

Again, the slope is set based on the original OEM fan, so anything less than that
and the PSU may overheat. And be careful when working inside a PSU!
post #5 of 10
Thread Starter 
Thank you , the coolermaster only make 1200rpm, seem the OCZ makes it work on fixed RPM, never heard it change speed, it make more noise than than my old HD4850... do you think the 0.45A current will damage the 0.16A fan?
I will try to find similar one first.
post #6 of 10
Fan draws current, MoBo does not force it.

Fan will pull Amps that it wants.

Match the CFM and you will be good.
    
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post #7 of 10
Quote:
Originally Posted by Baskt_Case View Post
Fan draws current, MoBo does not force it.

Fan will pull Amps that it wants.

Match the CFM and you will be good.
this, thats like saying a 1000w PSU will constantly draw 1000w, it only uses what it needs to.
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post #8 of 10
Thread Starter 
Thank you guys, I just put it on to give it a try, it works so far, and the RPM seems lower than it was on case, the air still cool, I only use Q9600 + 4G + HD5770, I guess top load up to 300w? so the PSU may produce lower heat that the coolermaster fan could just handle. I will try to contact OCZ, see if they can just send e a fan, or at least tell me where can I find one in Australia.
Thank you
post #9 of 10
Yeah the PSU probably isnt being that stressed with a modest system. I dont know if OCZ would send a fan though, as I doubt anything inside the PSU is deemed 'user serviceable.' Its probably not a good idea to let them know you already opened the PSU too- unless you dont mind losing your warranty.

Just stick to finding a fan that matches the specs and monitor the temps the fan you use now produces.
 
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post #10 of 10
Quote:
Originally Posted by alexgt View Post
Thank you guys, I just put it on to give it a try, it works so far, and the RPM seems lower than it was on case, the air still cool, I only use Q9600 + 4G + HD5770, I guess top load up to 300w? so the PSU may produce lower heat that the coolermaster fan could just handle. I will try to contact OCZ, see if they can just send e a fan, or at least tell me where can I find one in Australia.
Thank you
Just forget about it man.

Unless you have THAT MUCH spare time.

The PSU is not going to overheat.

Worst case scenario, the fan is going to go MAX speed when the PSU hits MAX TEMP threshold.

If your pushing PSU that hard, you need new PSU.

You fixed it. Yay for self repair.
    
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