IBM Infoprint 6500-v05 Maintenance Manual page 148

Operator Panel Message
B49 ERROR: SDRAM
# LOGICAL BANKS*
B50 ERROR: SDRAM
LOGIC COMB BANKS*
B51 STATUS: XX%
LOADING
Table 3. Message List
Explanation
Printer boot initialization tests
detect incorrect SDRAM.
Printer boot initialization tests
detect incorrect SDRAM.
Status message: printer boot-up
routines are loading printer
system software into flash
memory and SDRAM.
Corrective Action
Cycle power. If the message appears, replace the controller board
(page 319). Record the message and return it with the defective
board.
1. Cycle power. If the message appears, the controller board or
microcode is suspect. Do the following:
2. Save the printer configuration values. (Refer to the User's
Manual .)
3. Clear NVRAM (page 237).
4. Download and install the latest code from IBM First (page 231).
5. Power on the printer in download mode and load flash memory
(page 238).
a. If you encounter loading problems, go to the appropriate error
code for resolution.
b. If you encounter the failure or message that brought you to
this procedure, replace the controller board (page 319). After
replacing the controller board, DO NOT make the printer
READY, but proceed immediately to the next step.
6. Download and install the latest code from IBM First (page 231).
7. Power on the printer in download mode, and load flash memory
(page 238).
8. If you encounter the failure after replacing the controller board,
reinstall the original controller board and contact your DDS and
Second Level Support.
No action required.
Display Messages
148