Hard drive not installed, Primary Drive Unknown device. As I told earlier, that I have a Dell optiplex gx. I turn on the pc it shows strike f. I press f. 1 it shows the same word, when I press f. I set bios to defaults, but the same. I tried to format with Cd,xp,but there it show there is not hard disk to install. I chechked all the connection cable, i take them off, and set them on again, but the same f. I changed the battery nothing. Thanks OSPREY4. please reply. I/71cw883-ISL._SY450_.jpg' alt='Gx270 Usb Drivers' title='Gx270 Usb Drivers' />DELL. Fundamentals Of Signals And Systems Third Edition Solutions. COM Community Support Forums Disk Drives Disk Drives HDD, CDDVD, Bluray Forum dellharddisk Hard drive not installed, Primary Drive Unknown device. A black screen on your computer can mean several things. A black screen is most commonly a screen saver, but there are other possibilities. Dell Video Graphics Free Driver Download Free Download Dell, Inc. Video Graphics drivers. Worlds most popular driver download site. Gx270 Usb Drivers' title='Gx270 Usb Drivers' />Installing Windows XP on the Asus EEE pc using a single USB flash drive. Please note this tutorial works on all computers not just the Asus EEE PC. Dell Sound Audio Free Driver Download Free Download Dell, Inc. Download Buku Filsafat Pendidikan Islam there. Sound Audio drivers. Worlds most popular driver download site.