Compaq AlphaServer DS20 Bedienungsanleitung PDF herunterladen (Seite 5)

System Board

The interconnect switch is implemented on the system board

by the chipset consisting of one C-chip, two P-chips, and eight

D-chips. This complex chipset provides the data and address

path between the CPUs, memory, and the I/O subsystem.

A flash ROM holds the console code and the NVRAM data.

Switches are located near the CD-ROM connector. One of

these switches must be set when the system is upgraded to

faster processors.

Integrated into the system board are controllers for the floppy

diskette, the CD-ROM, a SCSI tape drive, two serial ports, one

parallel port, and keyboard and mouse.

Connectors are provided for the following:

2 CPU modules

16 DIMM memory modules

6 PCI devices

1 ISA device

1 floppy diskette drive

1 IDE CD-ROM

I/O panel for parallel port, COM1 and COM2 ports, keyboard

and mouse

CPU 0

CPU 1

Chip

PK-0320C-99

PCI 0 Slot 7

PCI 0 Slot 8

PCI 0 Slot 9

PCI 1 Slot 7

PCI 1 Slot 8

PCI 1 Slot 9

ISA Slot

DIMM Slots

SCSI

Speaker

Floppy

Firmware Flash ROM

Parallel Port

COM 1

COM 2

Keyboard & Mouse

CD-ROM

Switches

Component and Connector Locations

1 2 3 4 5 6 7 8 9 10 ... 15 16

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