IBM 7383 Installation And Service Manual page 363

Table 37. UEFI/POST diagnostic codes (continued)
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v If an action step is preceded by "(Trained technician only)", that step must be performed only by a trained
technician.
v Go to the IBM support website at http://www.ibm.com/supportportal to check for technical information, hints,
tips, and new device drivers or to submit a request for information.
Diagnostic
code Message
I.18009 [I.18009] A core
speed mismatch has
been detected for
one or more
processor packages.
I.1800A [I.1800A] A
mismatch has been
detected between
the speed at which
a QPI link has
trained between
two or more
processor packages.
I.1800B [I.1800B] A cache
size mismatch has
been detected for
one or more
processor packages.
Description Action
Processors have
1. Verify that matching processors are installed in the correct
mismatched
processor sockets for the server. Correct any mismatch
Core Speed.
issues found.
2. Make sure that the microprocessor is on the ServerProven
website at http://www.ibm.com/systems/info/x86servers/
serverproven/compat/us.
3. Check the IBM support website for a firmware update and
update the server firmware to the latest level (see Updating
the firmware).
4. (Trained technician only) Remove and replace the affected
microprocessor (error LED is lit) with a supported type (see
Removing a microprocessor and heat sink and Installing a
microprocessor and heat sink). Inspect microprocessor
socket and replace the system board first (see Removing the
system board and Installing the system board) if socket is
damaged.
Processors have
1. Make sure that the microprocessor is on the ServerProven
mismatched
website at http://www.ibm.com/systems/info/x86servers/
Bus Speed.
serverproven/compat/us.
2. Verify that matching processors are installed in the correct
processor sockets for the server. Correct any mismatch
issues found.
3. Check the IBM support website for a firmware update and
update the server firmware to the latest level (see Updating
the firmware).
4. (Trained technician only) Remove and replace the affected
microprocessor (error LED is lit) with a supported type (see
Removing a microprocessor and heat sink and Installing a
microprocessor and heat sink). Inspect microprocessor
socket and replace the system board first (see Removing the
system board and Installing the system board) if socket is
damaged.
Processors have
1. Make sure that the microprocessor is on the ServerProven
one or more
website at http://www.ibm.com/systems/info/x86servers/
cache levels
serverproven/compat/us.
with
2. Verify that matching processors are installed in the correct
mismatched
processor sockets for the server. Correct any mismatch
size.
issues found.
3. Check the IBM support website for a firmware update and
update the server firmware to the latest level (see Updating
the firmware).
4. (Trained technician only) Remove and replace the affected
microprocessor (error LED is lit) with a supported type (see
Removing a microprocessor and heat sink and Installing a
microprocessor and heat sink).
Appendix A. UEFI/POST error codes
345