Seagate 1270SL, 1080SL, 851SL, 540SL manual Basic troubleshooting

Medalist SL Family Installation Guide, November 1995 25

Basic troubleshooting

Warning. Always turn off the computer before changing jumpers or unplugging cables and cards.

Caution. Your drive and computer contain static-sensitive de- vices. Wear a ground strap or use other antistatic precaution while handling your drive.

If you have installed your drive and it does not function properly, perform the following basic checks:

∙Verify compatibility. Verify that the host adapter and the drive are appropriately matched to each other and to your computer. Refer to relevant documentation for details.

∙Check all cards. Verify that all cards are seated in their slots on the motherboard and are secured with mounting screws.

∙Check all cables. Make sure all ribbon and power cables are securely connected. Ribbon cables are easily damaged, es- pecially at the connector. Try a new cable or a known good cable. Make sure no socket pins were bent when the cable was inserted. For each cable, verify that cable-connector pin 1 is aligned with equipment-connector pin 1. The edge-stripe on the ribbon cable is used to denote pin 1.

Caution. Do not reverse-plug connectors. This will damage your drive if the power is applied.

∙Verify equipment configuration. Review the instructions in this guide and the host adapter installation guide and make sure that all appropriate jumpers are installed, or removed, to suit your application.