Digital Equipment DIGITAL Server 7100 1200, Service Maintenance Manual

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SCU Features
3-10
Cache Options Group
Menu Fields Settings Comments
Internal cache Enabled
(1)
Disabled
Enables or disables the server’s processor internal
cache operation.
External cache Disabled
Write through
Write back
(1)
Allows you to select the external cache operation
type.
Cache system
BIOS ROM Enabled
(1)
Disabled
Enables or disables caching request for server BIOS
ROM (F0000h to FFFFFh).
Cache video ROM Enabled
(1)
Disabled
Enables or disables the server to cache the video
BIOS in the C000 to C7FFh segment.
(1)
Factory default setting
Advanced Control Group
Menu Fields Settings Comments
CPU to PCI Write
Posting Disabled
Enabled
(1)
When enabled, allows processor writes to the PCI to
be posted in the compatibility OPB chipset.
OPBC PCI to CPU
Write Posting Disabled
Enabled
(1)
When enabled, allows PCI writes to the processor to
be posted in the compatibility OPB chipset.
OPBC CPU Line
Read Pre-Fetch Disabled
Enabled
(1)
When enabled, allows the compatibility OPB chipset’s
PCI memory read line commands to pre-fetch
additional processor cache lines.
2nd OPB CPU to
PCI Write Posting Disabled
Enabled
(1)
When enabled, allows processor writes to the PCI to
be posted in the 2nd OPB chipset.
2nd OPB PCI to
CPU Write Posting Disabled
Enabled
(1)
When enabled, allows PCI writes to the processor to
be posted in the 2nd OPB chipset.
(1)
Factory default setting
continued