Psu Dimensions and Help

[Onlineisoffline]

Im upgrading my PSU because my old one doesn't have enough power and stopped working today. My pc shut off and no power goes anywhere. But im worried about the Size of it.

My old Psu: Bestec ATX-300-12Z Rev. CD
149mm(W)x86mm(H)x139mm(L)

And the new Psu i want is: 150mm(W)x86mm(H)x160mm(L)

My motherboard: MicroATX F2A55M-DS2 microATX

Could I get suggestions on what to get or size or any help?

 

[Onlineisoffline]

The new psu is http://www.amazon.com/Corsair-Series-Modular-Bronze-ATX12V/dp/B00ALK3KEM

 

[tech-wreck]

have you taken the old psu out yet? if not, is there more than 30mm of free space forward of the psu? if so it should fit.
if it's already out, measure the space from the inside rear of your case going forward, and allow 10mm or so to get it in place.