IBM H80 Series manual Chapter, Pci

Chapter

1.

Introducing

the Model

H80

The RS/6000 Enterprise Server Model H80 Series

is

a

multiprocessor,

multibus

system

packaged

in

drawers. The

processors

and

memory

are

packaged

in

a

5

EIA-unit central electronics complex

(CEC

drawer), and the I/O devices are in a 5

EIA-unit I/O drawer. The basic system

consists of one CEC drawer and one I/O

drawer

in

the

same

rack. Connections

between

the

CEC drawer

and

I/O

drawers

are made through a number of cables

which include the V/S COMM cable, RIO

(Remote

Input

Output)

cables,

and

JTAG cable.

The CEC drawer supports one processor

card,

which

can

have

up to

six

processors,

each

having

its

own

L2

cache.

The

processors

share

common

system

memory.

The system

memory

resides

on

one

or

two memory riser cards in the CEC drawer.

Up to 16 GB of

user

memory

can

be

installed.

Power

is

provided

to

the

system

rack

through

an

ac

power

cord

that

is

connecte

a distribution bus. Power is connected from the distribution bus to each drawer independently. All drawers use 200 - 240 V ac power.

The primary I/O drawer has the following:

Ÿ 14 PCI slots

Ÿ System operator panel

ŸSPCN controller

Ÿ Interrupt and system bus control logic

ŸService Processor

ŸOptional boot DASDs

The PCI bus speeds are as follows:

Ÿ Up to 33Mhz for the four 32 bit slots at 5 V

Ÿ Up to 66Mhz for the ten 64 bit slots at 3.3 V

Slots	1-5, 8-10,	13	and 14 support either 32	or	64 bit	PCI	adapters. The	remain
slots	are 32	bit	only.
The	primary I/O drawer has space for up to three media						devices (tape, CD-ROM
and	diskette	drive). Two optional disk drives		can	occupy	PCI	slots 13 and	14.

Chapter 1. Introducing the Model1 H80