Error code Description Action
954.xx The NVRAM chip failure with controller part. Go to
“950.xx NVRAM failure service
check” on page 218.
955.xx The Code ROM or NAND flash failed the
Cyclic Redundancy Check (CRC) check or the
NAND experienced an uncorrectable multi-
bit failure. <loc> indicates the source of the
failure and has one of the following values:
• CRC Failure: The source is a failing
package indicated by Pn where n is the
package number. This error could occur
on a controller with ROM or NAND flash
and could occur as a result of the CRC
check done when the machine is
powered on. The range of package
numbers is from 0 to 15.
• Error Correction Code (ECC) Failure: The
source is a failing page indicated by Bn
where “n” is the page number. This error
occurs only if a multi-bit failure is detected
during the ECC execution. Single bit
failures will be corrected automatically
and will not result in a service error. The
range of page numbers is from 0 to 1023.
956.xx Controller board failure. Processor failure.
Check on .02 for fan error.
957.xx Controller board failure. ASIC failure.
958.xx Printer has performed more than 100 “shift
and reflash” operations as a result of ECC bit
corrections.
959.xx Controller verification failure of system boot
code.
Go to
“Invalid firmware/controller board
service check” on page 220.
959.0x System hardware failure. Go to
“Controller board removal” on
page 357.
96y error messages
Error code Description Action
960.xx RAM memory error: RAM soldered on the
board is bad.
See
“Controller board removal” on
page 357.
961.xx RAM memory error: slot 1 RAM is bad. See
“Memory failure service check” on
page 220.
964.xx Download emulation cyclic redundancy
check (CRC) failure has occurred. A
checksum failure detected in the emulation
header or emulation file.
See
“Download emulation cyclic
redundancy service check” on page 220.
5028
Diagnostic information
210
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