IBM HS40 Hardware Maintenance Manual - Page 39

Memory, errors

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The following illustration shows the LEDs on the I/O board. Secondary IDE error LED (DS6H1) Primary IDE error LED (DS2H1) Board error (DS7A2) Processor board error LED (DS8A2) Light path diagnostics button (S8A1) Light path diagnostics LED (green) (DS8A1) BMC error LED (DS7B1) NMI error LED (DS7A3) Temperature error LED (DS7A4) I/O board error LED (DS7A1) For example: A blade server error has occurred and you have noted that the blade server blade-error LED is lit on the blade server control panel. You then: 1. Remove the blade server from the BladeCenter unit. 2. Place the blade server on a flat, non-conductive surface. 3. Remove the cover from the blade server. 4. Press and hold the light path diagnostics button to relight the LEDs that were lit before you removed the blade server from the BladeCenter unit. The LEDs will remain lit for as long as you press the button, to a maximum of 25 seconds. Use the table at "Light path diagnostics" on page 86 to help determine the cause of the error and the action you should take. Memory errors If a memory problem occurs, complete the following steps before replacing a DIMM: 1. Reseat both DIMMs in the bank. 2. Check for a memory type mismatch in the bank. 3. Run the diagnostic programs. For more information about memory, see "Installing memory modules" on page 44. Chapter 3. Diagnostics 29

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The
following
illustration
shows
the
LEDs
on
the
I/O
board.
BMC error LED (DS7B1)
Primary IDE
error LED (DS2H1)
Secondary IDE
error LED (DS6H1)
Processor
board
error LED (DS8A2)
Board error
(DS7A2)
Light path
diagnostics
button (S8A1)
NMI error LED (DS7A3)
Temperature error LED (DS7A4)
I/O board error LED (DS7A1)
Light path
diagnostics LED (green)
(DS8A1)
For
example:
A
blade
server
error
has
occurred
and
you
have
noted
that
the
blade
server
blade-error
LED
is
lit
on
the
blade
server
control
panel.
You
then:
1.
Remove
the
blade
server
from
the
BladeCenter
unit.
2.
Place
the
blade
server
on
a
flat,
non-conductive
surface.
3.
Remove
the
cover
from
the
blade
server.
4.
Press
and
hold
the
light
path
diagnostics
button
to
relight
the
LEDs
that
were
lit
before
you
removed
the
blade
server
from
the
BladeCenter
unit.
The
LEDs
will
remain
lit
for
as
long
as
you
press
the
button,
to
a
maximum
of
25
seconds.
Use
the
table
at
“Light
path
diagnostics”
on
page
86
to
help
determine
the
cause
of
the
error
and
the
action
you
should
take.
Memory
errors
If
a
memory
problem
occurs,
complete
the
following
steps
before
replacing
a
DIMM:
1.
Reseat
both
DIMMs
in
the
bank.
2.
Check
for
a
memory
type
mismatch
in
the
bank.
3.
Run
the
diagnostic
programs.
For
more
information
about
memory,
see
“Installing
memory
modules”
on
page
44.
Chapter
3.
Diagnostics
29