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• See Chapter 3 "Parts listing" on page 29 to determine which components are consumable, structural, or CRU
parts.
• If an action step is preceded by "(Trained technician only)," that step must be performed only by a trained
technician.
Description
Error code
201-819-xxx
Aborted the memory self test because the
START-END address ranges are located in the
restricted area of memory.
201-855-xxx
Aborted the memory self test because there is
no RSDT signature key in RSDT structure table
in ACPI tables.
240
BladeCenter HS23 Blade ServerProblem Determination and Service Guide
Action
1. If the blade server has stopped responding, turn
off and restart the blade server; then, rerun the
test. See "Turning off the blade server" on page
7, "Turning on the blade server" on page 6, and
"Diagnostic tools overview" on page 78.
2. Make sure that the DSA Diagnostic code is at
the latest level; then, rerun the test ( "Diagnostic
tools overview" on page 78). The latest code
can be found on the IBM support website at
http://www.ibm.com/ support/entry/portal/
docdisplay? brand=5000008&lndocid=SERV-
DSA.
3. Make sure that the system BIOS firmware is at
the latest level, upgrade if necessary; then, rerun
the test ( "Diagnostic tools overview" on page
78). The BIOS firmware level can be found in the
DSA Diagnostic Event Log within the Firmware/
VPD section for this component. The latest level
firmware for this component can be found on
the IBM support website at http://www-933.ibm.
com/ support/fixcentral/systemx/groupView?
query.productGroup=ibm%2FBladeCenter.
4. Rerun the test. See "Diagnostic tools overview"
on page 78.
5. If the component failure remains, refer to
Chapter 4 "Removing and replacing blade
server components" on page 37 to replace the
failed component.
1. If the blade server has stopped responding, turn
off and restart the blade server; then, rerun the
test. See "Turning off the blade server" on page
7, "Turning on the blade server" on page 6, and
"Diagnostic tools overview" on page 78.
2. Make sure that the system BIOS firmware is at
the latest level, upgrade if necessary; then, rerun
the test ( "Diagnostic tools overview" on page
78). The BIOS firmware level can be found in the
DSA Diagnostic Event Log within the Firmware/
VPD section for this component. The latest level
firmware for this component can be found on
the IBM support website at http://www-933.ibm.
com/ support/fixcentral/systemx/groupView?
query.productGroup=ibm%2FBladeCenter.
3. Rerun the test. See "Diagnostic tools overview"
on page 78.
4. If the component failure remains, refer to
Chapter 4 "Removing and replacing blade
server components" on page 37 to replace the
failed component.
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