Adaptec 29320LPE User Guide - Page 19

Chapter 4: Understanding SCSI ● 19 If you have two or more SCSI cards, you can choose which SCSI card is found first by your system by physically changing the order of the SCSI cards in the PCIe/PCI/PCI-X slots. Your system scans the PCIe/PCI/PCI-X slots in a set order. Connecting the LED Connector (Optional feature) Most computers have an LED disk activity light on the front panel of the system case. If you choose to disconnect the cable from the LED connector on the motherboard and connect it to the LED connector on the SCSI card as shown in the figure below, the LED on the front panel of the system will light whenever there is activity on the SCSI bus. Note: If you connect the LED cable to the SCSI card, the LED disk activity light will no longer indicate disk activity on the non-SCSI disk drives. LED Cable from Motherboard 2-pin LED Cable LED Connector on SCSI Card 1 1 Pin 1 Overriding SCSI Termination Settings You use SCSISelect to control the termination of the SCSI channel on an Adaptec SCSI Card. The default termination setting for a channel is Automatic. This setting allows the SCSI card to adjust SCSI termination automatically, depending on which connectors have SCSI devices attached to them. Regardless of the SCSISelect termination setting, the SCSI card termination is always disabled when the power is turned off. If you want SCSI card termination to be enabled when the power is turned off, you must terminate the SCSI channel manually. To manually terminate the channel on the Adaptec SCSI 29320LPE, place a shunt on the Termination enable jumper.The next figure shows where the jumper is located on Adaptec SCSI 29320LPE.