Upgrade power supply (AX3990)

BingoRingo
BingoRingo Member Posts: 2 New User

I bought a Radeon HD 6570 for my Acer and turns out it needs a much bigger PSU (they say 450W).

 

I looked online for a small form factor PSU but they don't have the same shape as the one in the computer (LiteOn, 220W).

 

I thought it was all standard, but it's not the case. Does anyone know what model or specification I should be looking for?

 

The PSU is a LiteOn PS-5221-06A2, and the power button is not on the PSU unlike all models I saw online.

 

Thanks!

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