installing a new power supply

[govnoman13]

hi i wanna install a new psu. Since i bought a nvidia geforce gtx 560 ti (overclocked). my computer is a hp-elite m9525f. my computer specs are intel core 2 quad, windows vista home premium 64bit, 6 gb of ddr2, and my old graphic card is a nvidia geforce 9300 ge which is ****. anyways lets get to the point, i cant find any power supply since my computer has some sort of lever to hold the psu into place and i cant find that anywhere on these new psu's. and i dont know how to put in these new psu's

 

[MindoverMaster]

Take a picture of your case, with the left side panel open. Likely, you have a non-standard, or low profile, PSU.

 

[patonb]

Theyre usually not "cliped" in, theres 4 screws at the back/outside that release it.