I just transfered all my parts to a new case ive reset cmos,have taken ram out and did those 1 at a time,tried different graphic cards. My pc will run constant so it cant be a power supply issue. But display or usb ports do not work
if you used the same system board and power supply in the swap. look that the mb is sitting on all of the standoffs and that the metal motherboard shield of the new case is not grounding out the mb.
probably the not connected to motherboard,may help if your provide with pc spec. and if the mothearboard have integrated gpu u can try connect monitor and see if it works.
My specs
Amd a10 5800k quad core
Msi gtx 770 twin frozer
16 gb ddr3 ram
650 watt power supply
A smorzero i checked the standoffs nothing is touching the metal any other suggestions?
try pulling the gpu and use one stick of ram see if the system posts. check the hp case to your new case make sure the usb port front ones are wired the same. a lot of time the hp mb use non standard pin outs so you cant move them to a new case.