v
Minimum
configuration
is
either
one
600
MHz
processor,
which
has
2
MB
of
L2
cache,
or
one
750
MHz
processor,
which
has
8
MB
of
L2
cache.
v
Two
or
four
600
MHz
processors,
each
with
4
MB
of
L2
cache.
v
Two
or
four
750
MHz
processors,
each
with
8
MB
of
L2
cache.
Memory
v
256
MB
(minimum)
to
32
GB
(maximum)
v
One
or
two
memory
riser
cards;
each
riser
card
has
sixteen
sockets.
128
MB,
256
MB,
512
MB,
and
1
GB
dual
inline
memory
modules
(DIMMs)
are
available.
v
Certain
32
MB
DIMMs
from
older
RS/6000
systems
can
also
be
used
when
upgrading
the
system
memory.
Power
is
provided
to
the
system
rack
through
an
ac
power
cord
that
is
connected
to
a
distribution
bus.
Power
is
connected
from
the
distribution
bus
to
each
drawer
independently.
All
drawers
use
200
-
240
V
ac
power
or
-48
V
dc
power.
The
primary
I/O
drawer
has
the
following:
v
14
PCI
slots
v
System
operator
panel
v
SPCN
controller
v
Interrupt
and
system
bus
control
logic
v
Service
processor
v
Optional
boot
DASDs
v
Various
connectors,
including
four
serial
port
connectors,
on
the
back
of
the
drawer
for
the
attachment
of
external
devices.
Note:
Serial
ports
1
and
2
can
only
be
used
to
access
the
service
processor
menus.
No
″
heartbeat
″
-type
devices
or
cables
can
be
used
on
these
ports.
″
Heartbeat
″
-type
devices
or
cables
must
be
installed
on
serial
port
3
or
serial
port
4.
The
PCI
bus
speeds
are
as
follows:
v
Up
to
33
Mhz
for
the
four
32-bit
slots
at
5
V
v
Up
to
66
Mhz
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
remaining
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.
The
system
data
flow
diagrams
are
shown
in
“Data
Flow
with
One-Way
Processor”
on
page
3
and
“Data
Flow
with
Two-
to
Six-Way
Processor”
on
page
4.
2
Service
Guide
Summary of Contents for 6H0
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Page 28: ...R CEC Drawer 5 EIA Units Primary I O Drawer 5 EIA Units 8 Service Guide ...
Page 29: ...CEC Drawer Front View 1 1 Power On LED Chapter 1 Reference Information 9 ...
Page 33: ...5 Fan 4 U0 1 F4 6 Fan 3 U0 1 F3 Chapter 1 Reference Information 13 ...
Page 37: ...5 Fan 4 U0 2 F4 6 Fan 3 U0 2 F3 Chapter 1 Reference Information 17 ...
Page 77: ...DC Power Cable Routings Chapter 1 Reference Information 57 ...
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Page 468: ...Replacement Replace in reverse order 448 Service Guide ...
Page 489: ...Chapter 10 Parts Information This chapter contains parts information for the system 469 ...
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