Dell OptiPlex GX270 - Manual (Page 159)

Drive Problems
Fill out the Diagnostics Checklist as you complete these checks.
Floppy drive problems
For instructions on which cables should be attached to specific connectors on a card, see the card's documentation.
4. Close the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.
Test the video card —
1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer
cover.
2. Remove all cards except the video card.
If your primary hard drive is connected to a drive controller card and not to one of the system board IDE connectors, leave the drive
controller card installed in the computer.
3. Close the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.
4. Run the Dell Diagnostics .
If any of the tests fail, contact Dell.
Test the cards —
1. Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer
cover.
2. Reinstall one of the cards that you removed previously.
3. Close the computer cover, reconnect the computer and devices to electrical outlets, and then turn them on.
4. Run the Dell Diagnostics .
If any of the diagnostics tests fail, the card you just reinstalled is faulty and needs to be replaced.
5. Repeat this process until you have reinstalled all cards.
If you have reinstalled all of the cards and the problem is not resolved, contact Dell.
Test the drive —
l Insert another disk to eliminate the possibility that the original floppy disk is defective.
l Insert a bootable floppy disk and reboot the computer.
Ensure that the disk is not full or write-protected — Ensure that the disk has available space and that it is not write-protected (locked).
See the following figure.
Test the floppy drive light —
MS-DOS®
Insert a floppy disk, type dir a: at the DOS prompt, and then press <Enter>.
Microsoft Windows operating systems
Insert a floppy disk, click the Start button, click My Computer, and then double-click the floppy drive icon.
NOTICE: Do not attempt to clean drive heads with a swab. You may accidentally misalign the heads, which can render the drive inoperable.