Asus P2L-B User Manual - Page 61

VI. ASUS SCSI Cards (Jumpers) VI. ASUS PCI SCSI Cards Terminator Settings for the ASUS PCI-SC860 Many SCSI devices including the ASUS PCI-SC860 use a set of onboard active resistors to terminate the devices at the ends automatically. Automatic termination requires that the SCSI devices be connected in a straight linear connection or "chain." Connect SCSI devices to one or two of the SCSI connectors in a linear "chain" for auto termination of the ASUS PCI-SC860 to be effective. Other formations will cause your SCSI devices to not mount properly. You must use the end of the ribbon cable when using the internal connector(s) to keep a linear path. Additional Note: The Symbios Logic SCSI Configuration Utility is a powerful tool. If, while using it, you somehow disable all your controllers or cannot enter the configuration utility, pressing "Ctrl-A" after memory count during reboot allows you to recover and reconfigure. Terminator Settings for the ASUS PCI-SC200 The ASUS PCI-SC200, on the other hand, has "active" termination that you must set using jumper JP5. There are two settings, "terminated" and "not terminated," as shown below. JP JP 5 5 Terminated (Default) Not Terminated Terminator Setting (Terminated / Not Terminated) Decide whether or not you need to terminate the ASUS PCI-SC200 based on its position in the SCSI chain. Only the devices at each end of the chain need to be terminated. If you have only internal or only external devices connected to the ASUS PCI-SC200, then you must terminate the ASUS PCI-SC200. If you have both internal and external devices connected, you must not terminate the card. See the following example which illustrates this concept. ASUS P2L-B User's Manual 61