I recently replaced the Power supply for my HP Compaq D220 Micotower. Windows XP P4. Actually I sent it to get it replaced but now none of my USB ports are working at all. I tried connecting my removable disks but none of the ports are responding. thanks for your help guys.

1. Do you have your motherboard cd?. if so, you may need to run it.
2. Do you see your ports listed in the Device Manager?

Also, in case others may need some info from you about your computer, download this FREE program:

EVEREST Home Edition
http://www.softpedia.com/get/System/System...e-Edition.shtml
EVEREST Home Edition is a free system diagnostics, system information and benchmarking solution for home PC users, based on the award-winning EVEREST Technology. If you don't know what type of video card you have, or anything else about your computer, then you'll need this.

thanks

When you download Everest, download version 1.51. For some reason they reduced the number of features in version 2.02 and version 2.2

Can you peek inside the case and see if the cables from the USB ports are hooked to the motherboard?