My pc powers on and the monitor displays fine, but the mouse and keyboard aren't powering on. I tried a different keyboard with the same results. The pc stops at the press enter to boot screen but I can't press enter. I installed a new hdd this morning and it started fine afterwards. Its only after a few hours that the pc crashed and the problems started. I used my cellphone and usb charging cable in every usb port and there is power. Any help would be appreciated. Thank you
Well, your startup params in the BIOS are wrong if you have to intervene with a keyboard press in order to boot. Change the CMOS battery first. Then go into BIOS and verify that your boot order is correct. Then after you verified that, make certain that USB ports are enabled.
How can you verify that the USB works when it hasn't booted yet?