IBM 8837 User Guide - Page 30

Advanced, Setup, Important, System, Partition, Visibility, Memory, Settings, Enable, Options,

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This choice is on the full Configuration/Setup Utility menu only. v Advanced Setup Select this choice to change settings for advanced hardware features. Important: The server might malfunction if these options are incorrectly configured. Follow the instructions on the screen carefully. This choice is on the full Configuration/Setup Utility menu only. - System Partition Visibility Select this choice to specify whether the System Partition is to be visible or hidden. - Memory Settings Select this choice to manually enable a pair of memory connectors. If a memory error is detected during POST or memory configuration, the server automatically disables the failing pair of memory connectors and continues operating with reduced memory. After the problem is corrected, you must manually enable the memory connectors. Use the arrow keys to highlight the pair of memory connectors that you want to enable, and use the arrow keys to select Enable. You can select any of the following memory configurations: - The flat (default) configuration uses memory without any redundancy. - In mirroring mode, memory pairs act as a RAID level 1 memory array. This option reduces the amount of memory usable by the system by half. - Sparing mode sets aside memory to dynamically replace a section of failing memory during system operation. This mode also reduces the amount of memory available to the system. The mirroring and sparing configuration requires that the memory be placed in multiple memory sockets. - CPU Options Select this choice to disable the microprocessor cache or to set it to use the write-back or write-through method. Write-back caching generally provides better system performance. Hyper-Threading technology enables a server with one microprocessor to operate as if it were two microprocessors. Utilizing the CPU option allows better system performance, and will appear to the Operating System that twice the number of microprocessors are present. You can enable the Prefetch Queue option from the CPU options menu. The Prefetch Queue option along with 64-bit addressing, in EM64T, can boost the software performance of the server. - PCI Bus Control Select this choice to view and set interrupts for PCI devices and to configure the master-latency-timer (MLT) value for the server. - Baseboard management controller Settings This option provides you with the following choices: - View the BMC firmware version - Enable and set timeout values for the following items: v BMC post watchdog v BMC OS loader watchdog - Enable the Reboot on NMI option If you enable this option, the server will automatically restart 60 seconds after the BMC issues a nonmaskable interrupt (NMI) to the server. If you 18 IBM xSeries 336 Type 8837: User's Guide

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This
choice
is
on
the
full
Configuration/Setup
Utility
menu
only.
v
Advanced
Setup
Select
this
choice
to
change
settings
for
advanced
hardware
features.
Important:
The
server
might
malfunction
if
these
options
are
incorrectly
configured.
Follow
the
instructions
on
the
screen
carefully.
This
choice
is
on
the
full
Configuration/Setup
Utility
menu
only.
–
System
Partition
Visibility
Select
this
choice
to
specify
whether
the
System
Partition
is
to
be
visible
or
hidden.
–
Memory
Settings
Select
this
choice
to
manually
enable
a
pair
of
memory
connectors.
If
a
memory
error
is
detected
during
POST
or
memory
configuration,
the
server
automatically
disables
the
failing
pair
of
memory
connectors
and
continues
operating
with
reduced
memory.
After
the
problem
is
corrected,
you
must
manually
enable
the
memory
connectors.
Use
the
arrow
keys
to
highlight
the
pair
of
memory
connectors
that
you
want
to
enable,
and
use
the
arrow
keys
to
select
Enable
.
You
can
select
any
of
the
following
memory
configurations:
-
The
flat
(default)
configuration
uses
memory
without
any
redundancy.
-
In
mirroring
mode,
memory
pairs
act
as
a
RAID
level
1
memory
array.
This
option
reduces
the
amount
of
memory
usable
by
the
system
by
half.
-
Sparing
mode
sets
aside
memory
to
dynamically
replace
a
section
of
failing
memory
during
system
operation.
This
mode
also
reduces
the
amount
of
memory
available
to
the
system.
The
mirroring
and
sparing
configuration
requires
that
the
memory
be
placed
in
multiple
memory
sockets.
–
CPU
Options
Select
this
choice
to
disable
the
microprocessor
cache
or
to
set
it
to
use
the
write-back
or
write-through
method.
Write-back
caching
generally
provides
better
system
performance.
Hyper-Threading
technology
enables
a
server
with
one
microprocessor
to
operate
as
if
it
were
two
microprocessors.
Utilizing
the
CPU
option
allows
better
system
performance,
and
will
appear
to
the
Operating
System
that
twice
the
number
of
microprocessors
are
present.
You
can
enable
the
Prefetch
Queue
option
from
the
CPU
options
menu.
The
Prefetch
Queue
option
along
with
64-bit
addressing,
in
EM64T,
can
boost
the
software
performance
of
the
server.
–
PCI
Bus
Control
Select
this
choice
to
view
and
set
interrupts
for
PCI
devices
and
to
configure
the
master-latency-timer
(MLT)
value
for
the
server.
–
Baseboard
management
controller
Settings
This
option
provides
you
with
the
following
choices:
-
View
the
BMC
firmware
version
-
Enable
and
set
timeout
values
for
the
following
items:
v
BMC
post
watchdog
v
BMC
OS
loader
watchdog
-
Enable
the
Reboot
on
NMI
option
If
you
enable
this
option,
the
server
will
automatically
restart
60
seconds
after
the
BMC
issues
a
nonmaskable
interrupt
(NMI)
to
the
server.
If
you
18
IBM
xSeries
336
Type
8837:
User’s
Guide