Compaq AA-RHGWB-TE - Manual (Page 98)

____________________ Note _____________________
If you are installing SCSI or network adapters, you may wish
to complete all hardware installation before powering up the
systems to run Memory Channel diagnostics.
5.1 Setting the Memory Channel Adapter Jumpers
The meaning of the Memory Channel adapter module jumpers depends upon
the version of the Memory Channel module.
5.1.1 MC1 and MC1.5 Jumpers
The MC1 and MC1.5 modules (CCMAA-AA and CCMAA-AB respectively)
have adapter jumpers that designate whether the configuration is using
standard or virtual hub mode. If virtual hub mode is being used, there can
be only two systems. One system must be virtual hub 0 (VH0) and the other
must be virtual hub 1 (VH1).
The Memory Channel adapter should arrive with the jumpers set for
standard hub mode (pins 1 to 2 jumpered). Confirm that the jumpers are
set properly for your configuration. The jumper configurations are shown
as if you were holding the module with the jumpers facing you, with the
module end plate in your left hand. The jumpers are right next to the
factory/maintenance cable connector, and are described in Table 5–1.
Table 5–1: MC1 and MC1.5 Jumper Configuration
If hub mode is: Jumper: Example:
Standard Pins 1 to 2
1 2 3
Virtual: VH0 Pins 2 to 3
1 2 3
Virtual: VH1 None needed; store the jumper on pin 1 or 3
1 2 3
5–2 Setting Up the Memory Channel Cluster Interconnect