Are E-machine computers Power supply proprietary?

I enjoy an e-machine that recently comparatively working, and I believe that it is the power supply unit. I bought a replacement, but the computer still does not come on and i believe that it is because the E-machines power supply component is proprietary. Can anyone else in the IT world please confirm this. I surely would appreciate it. Thanks within Advance.

~Robert Anderson

Answer:
no they arent but they have a pullover setting on the case that have a write disable reset the bios by turning it on with the pg dwn push button held in (after setting the jumper)

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