System Board Sets
1-10
Server Description
System Board Sets
The “system board set” reflects the type and number of boards available for a particular configuration.
Board Set for a Dual System Board Configuration
The system board set for a dual system board configuration includes the following:
•
Primary and secondary system boards
•
Up to four processor boards
•
One to two memory boards
•
Bus termination board (required in any slot in which processor board is not installed)
Primary System Board Features
The following table summarizes the primary system board features.
Primary System
Board Feature
Description
Multiple processor
support
Two processor board slots. Up to Four Pentium Pro microprocessors (two on
each processor board). Either a processor board or a bus termination board
must be plugged into the system board.
Upgradable memory
One slot for memory board, supporting up to 4 GB memory using 256 MB
DIMMs.
Note: System memory data coherency is maintained using a Line Status Table
(LST) SIMM on the system board. Whenever a memory board is resident, an
LST SIMM module must also be resident.
Add-in board support
Three dedicated EISA bus slots
Six dedicated 32-bit PCI slots; dual (peer) bus architecture
One shared PCI/EISA slot
SCSI controllers
Two onboard SCSI-2 controllers; Ultra SCSI channel support (PCI-based)
BIOS
Flash memory-based BIOS (Basic Input/Output System) and Setup utilities
Intermodule connector
Used to connect the primary and secondary system boards. A 266-pin
receptacle-type connector into which the secondary system board is plugged.
Video
Integrated super VGA controller chip with 1 MB of video memory
External device
connectors
Onboard connectors for two serial ports, parallel port, PS/2-compatible
keyboard and mouse, and VGA monitor
Clock
Real-time clock/calendar (RTC) chip
System hardware
monitoring
Detects chassis intrusion and contains sensors for temperature, voltage, and
fan failure