Installation guide

(behind the PPB) slots.
All ETMAB-xx backplanes are PCI Version 2.1 compliant.
Only the ETMXB-AA contains an onboard SCSI controller. The other
ETMXB-xx/ETMAB-xx backplanes require a SCSI option card.
The option cards shown in Table 3-1 work behind (as well as in front of) the
bridge. You can plug these cards in to any available slot.
Table 3-1: Supported Options Behind the Bridge
Option Type Part Number Description
Graphics SN-PBXGB-AA
a
TGA2 2MB PowerStorm 3D30
SCSI KZPAA-AA PCI-SCSI host bus adapter
SCSI SN-KZPBA-CA PCI-SCSI Ultra Wide adapter
Network DE450-CA PCI NIC (TP, TW, AUI)
Network DE500-BA PCI NIC (TP)
Table note:
a. The SN-PBXGB-AA (TGA2 PowerStorm 3D30) video card will work
behind a bridge in multiple configurations if the first card is within the
primary bus. For restrictions on jumper settings and X Server DMA for
the PowerStorm 3D30 card, see Section 3.6.3.2.
When used with DMCC EBM2n SBCs (only), the SN-KZPBA-CA (PCI-
SCSI Ultra Wide adapter) requires the following console parameter to be set:
>>> set pci_prefetch SMS
3.6.3.2 PBXGB-AA (TGA2 PowerStorm 3D30) Video Card Restrictions
The following restrictions apply to the PBXGB-AA (TGA2 PowerStorm
3D30) video card that is listed in Table 3-1:
• EV5 Alias jumper setting (EBM2n only)
For EBM2n SBCs only, you must set the EV5 Alias jumper on the
PowerStorm 3D30 card to On.
• VGAEN jumper settings
Only one PowerStorm 3D30 card can have its VGAEN jumper set to On.
This card must be positioned in a primary PCI slot for the SRM Console
to be displayed. All other PowerStorm 3D30 cards must have their
VGAEN jumpers set to Off but may be positioned in any PCI slot.
3–10 Processor-Specific Notes