Key Digital 8400 - Manual (Page 6)

AlphaServer 8400
Alpha Servers 3.211
Step 3a—Memory Upgrades


Memory upgrades are field installed only (not configured in Manufacturing).
MS7CC-UA 128 MB memory upgrade (8 MB SIMMs); upgrades 128 MB (-BA) module to
256 MB (-CA) module
MS7CC-UB 512 MB memory upgrade (32 MB SIMMs); upgrades 512 MB (-DA) module to
1 GB (-EA) module
Step 3b—Prestoserve Non-Volatile Random Access Memory (NVRAM)


Supported on DIGITAL UNIX systems only.



Maximum one Prestoserve I/O performance enhancement option per system.


Includes Prestoserve license and documentation kit.
DJ-ML200-BA 4 MB Prestoserve; PCI option—requires DWLPB-AA/BA
DJ-ML200-CA 8 MB Prestoserve; PCI option—requires DWLPB-AA/BA
DJ-ML300-BA 4 MB Prestoserve; KFTIA-AA daughter card mounting, requires KFTIA-AA
Step 4—I/O Expansion Buses
PCI and XMI I/O expansion buses are available on AlphaServer 8400 systems. Application and system configuration
determines maximum I/O configuration. Configuration limits exist at I/O bus level and controller level. With different I/O
buses present in the system, verify maximum number of allowed controllers listed in the Controller Configuration Table.


Each DWLPB-AA/AB (PCI plug-in unit) includes a
12-slot PCI bus and uses one rear expansion bay. SCSI
disks in BA660-AB plug-in units can occupy the
corresponding front expansion bay.


Each DWLPB-AA/AB (PCI plug-in unit) has one open
space for addition of DWLPB-BA/BB (second PCI
expansion box) or BA661-AA (Wide SCSI StorageWorks
shelf)


Each DWLMA-AA/BA (XMI plug-in unit) includes one
12-slot XMI channel—uses two expansion bays, front
and back.


Each PCI and XMI plug-in unit requires one I/O channel
connection to either KFTHA-AA or KFTIA-AA, see Step
6.



Maximum of twelve I/O channels supported (three
KFTHAs).
DWLPB-AA PCI plug-in unit with one PCI box for AlphaServer 8400 system cabinet only, maximum two per
system cabinet, two per system. Requires one I/O channel connection on either KFTIA-AA or
KFTHA-AA.
DWLPB-AB PCI plug-in unit with one PCI box for AlphaServer 8400 expansion cabinet only, maximum two
per expansion cabinet, four per system. Maximum of six DWLPB-AA and DWLPB-AB (PCI plug-in
units) per system. Requires one I/O channel connection on either KFTIA-AA or KFTHA-AA.
DWLPB-BA Second PCI expansion box for mounting in DWLPB-AA—maximum one per DWLPB-AA.
Requires one I/O channel connection on either KFTIA-AA or KFTHA-AA.
DWLPB-BB Second PCI expansion box for mounting in DWLPB-AB—maximum one per DWLPB-AB.
Requires one I/O channel connection on either KFTIA-AA or KFTHA-AA.
BA661-AA Wide SCSI StorageWorks Shelf (BA356-LB) can be added to DWLPB-AA/AB in place of second
PCI expansion box (DWLPB-BA/BB). Maximum one BA661-AA per DWLPB-AA/AB, and
maximum of six BA661-AA per system. Supports 16-bit (Wide) SCSI and some 8-bit (Narrow) SCSI
devices.
KFE70-AA EISA Bridge option—PCI to EISA bridge module set—must reside in first DWLPB-AA in system
cabinet only. Converts PCI bus from 12-slot bus to 2 EISA, 6 PCI/EISA, and 2 PCI slots. Includes
RX26 floppy drive, mounting hardware, and cables to mount RX26 below CD-ROM in the system
cabinet. Maximum of one EISA Bridge option per system. This option is required to support KZPSC
SCSI RAID controllers. It includes the floppy disk drive required to run the RAID Configuration
Utility (RCU).
DWLMA-AA XMI plug-in unit for system cabinet—maximum two per system. Requires one I/O channel
connection on either KFTIA-AA or KFTHA-AA.
DWLMA-BA XMI plug-in unit for I/O expansion cabinet—maximum two per cabinet, four per system. Total
maximum six DWLMA-AA and DWLMA-BA (XMI plug-in units) per system. Requires one I/O
channel connection on either KFTIA-AA or KFTHA-AA.