computer probs

[jdown791]

hey guys i bought computer parts(ram motherboard cpu case+ps and hard drve) i have put 2gether myself(cert 2 in I.t) and i get a screen at startup with options like boot menu and stuff i figured i had to tell it to boot from cd to install windowss but whenever i put n a keyboard itdoesnt work so i cant press F12 and get in2 boot menu. any ideas? usb slot is wired

parts:

4Gb ram ddr3
1TB samsung internal hard drivE
Gigabyte 880GA-UD3H(motherboard)
AMD phenom II

[Geek-9pm]

The keyboard has to be present before you turn on power.

[jdown791]

ik still no dif

[Geek-9pm]

Does the keyboard have lights? Do they flash?
You may need another keyboard.

[Lumpy44]

Try different usb ports. I have this happen to me on occasion too. Try a port, if it doesnt work, restart, move to next port, making sure its plugged in before you turn it back on ^^^^
Trial and error worked for me on this one

[foresthill]

Does this computer only have USB ports for a keyboard, or does it also have the older PS/2 port? Some with a PS/2 ( round port ) have the default in the bios set to only use this port. You need a PS/2 keyboard to be able to get into the bios to tell it to use USB.