12 | Marathon 420sl Installation Guide, August 1995 |
damage to disc partitions. Also, before installing any new software, scan the installation diskettes for viruses.
Specific Troubleshooting Procedures
Methods for resolving specific drive installation problems are listed on the following pages. These methods incorporate many of the general troubleshooting techniques described in the pre- vious section.
The screen remains blank when you power up the computer.
∙Make sure the monitor is plugged in and turned on.
∙Check all cards. Make sure the video card is seated in its slot and secured with mounting screws.
∙Check all cables. Make sure the video card cables (if any) are securely attached.
∙Power down the computer and remove the drive host adapter. If the screen comes on after you reboot, the host adapter may be incompatible or defective. If so, see your dealer.
At startup, the computer does not recognize the presence of the drive.
∙Check all cables.
∙Check jumper settings on all drives.
∙Check the power supply.
∙Reboot the computer and make sure the drive spins up. If your drive is very quiet, you may not be able to hear it spin up. In this case, check the drive activity LED if your computer has one. If the drive does not spin up, check the drive cables again.
∙Verify the BIOS drive type.
∙Check for I/O address conflicts.