Replaced PSU fan. Need to start manually.
 

I just replaced my PSU fan on my Corsair PSU this weekend. The original fan was buzzing and making a lot of noise.

I installed a fractal R2 Silent fan on it. Size and fitting were perfect, and soldiering the 3wires fan to the 2 wires PSU connector werent' difficult at all.

The original PSU fan was 12V 0.58A
The Fractal R2 Fan I replaced was 12V 0.12A.
I did some research....which suggest as long as the voltage is the same and the new fan doesn't draw more amp, it is usually ok.
When i test the 2 fans, I also feel like the R2 Fan was pushing more air than the original PSU fan, even tho it was much quieter and uses less power.

After I installed everything and power up the system. I notice the fan only "shake" a bit when i turn on the power but doesn't spin. But once i give it a slight nudge (even a very very light push, it will start spinning normally like the other R2 fan I have in the case)

So I am guessing the fan is not getting enough voltage to "start" spinning the fan?
If so..is there anyway I can fix this? I don't think I can tweak the voltage since the fan connector is inside the PSU.
Do you think if I replace a fan with a higher amp rating, it will work fine? (I can't find any 120mm fan that draws 0.58A tho, most seems to be much lower)
But on the other hand, i thought it would be easier for the PSU to supply the right(higher) voltage since the new fan draws less power & current?

It should be the current (A) that has to start the fan not the voltage.

I think the initial draw of the fractal fan requires more current than the oe one thus why it can't start but can spin normally.

The only way to solve your problem is to test more fans, until you find one that works. If you want to be more scientific about it, get a variable power supply to determine the fan starting voltage.

I normally would try oiling the fan before replacing it. This usually fixes a noisy fan. The bearing is usually under the label.