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Dell E521 cannot get to bios with usb keyboard.
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\015 I have a Dell E521 which was working fine. Running Windows Vista.I want to install Windows 7.It has usb keyboard.I cannot get into bios to change boot options to cd.PC wont recognize my usb keyboard.No plug in motherboard for a ps2 keyboard.I tried 4 different keyboards, I cannot get to bios, because I press F2 to go to setup, but nothing happens. Num lock light in kyb does not turn on. I tried all 4 back usb ports and 2 front ones. If I plug my usb optical mouse, I do get the optical red light in the mouse.\015
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