i just Got my computer togeatherand my Z97 wont use any of my USB keyboards

Solution
IF you have external USB drives attached, disconnect them and retry. If you have the front panel USB connections attached to the motherboard, disconnect them and retry. It may be one of those items has an issue. It's not uncommon for a faulty front panel USB circuit to affect the rest of the USB ports.
IF you have external USB drives attached, disconnect them and retry. If you have the front panel USB connections attached to the motherboard, disconnect them and retry. It may be one of those items has an issue. It's not uncommon for a faulty front panel USB circuit to affect the rest of the USB ports.
 
Solution