Selftest Failures (J200/210/210Xc); Memory Failures - HP Visualize J2240 Service Handbook

Selftest Failures (J200/210/210XC)

Chassis codes are the key to debugging selftest errors. If a failure is found during
selftest, chassis codes are displayed in the LCD. The procedure for using these codes
to debug a failure is as follows:
NOTICE: These chassis codes DO NOT include the J280/282. The
J280/282 chassis codes are shown in Tables 4–4 through 4–16.
1. Using Table 4–1, find the chassis code listed on the LCD.
Codes 7000 through 7Dxx are memory errors.
Codes CBxx through 500F in Table 4–1 are HPMC errors.
2. A 7Fxx code means a memory DIMM error. Figure 4–3 is a layout of the
memory DIMMs on the CPU board that goes down to the DIMM pair. To contin-
ue beyond the pair, run Offline Diagnostics.
To get additional information about failures from the boot console interface, use the
Service menu pim, pdt, and ChassisCode commands.
In the following table, the FRU column shows messages printed on the LCD that refer
to system FRUs. Only FLT codes have FRUs associated with them. Some WARN codes
are also device-specific, especially to IODC calls; for example, 8XXY codes. Test and
INIT codes don't correspond to any FRU. All codes are listed in numeric order.
For the FRUs labled 'Selftest CPU 0', there is also a corresponding CPU x code, where x
indicates the CPU number.

Memory Failures

The J Class system requires special Memory Page Deallocation (PDC) to be
implemented. This PDC feature allows the workstation to provide information to the
operating system about memory failures.
HP-UX 10.x uses PDC information to map out failing memory areas and continue
normal operation. You can use the command memrpt with the detail switch to obtain
information about the Memory Page Deallocation Table (PDT) as well as single bit
errors logged by the system.
/usr/sbin/sysdiag
#
logtool
DUI >
memrpt detail
LOGTOOL>
The PDT can also be checked using the pdt command in the Service menu of the
boot console handler (Refer to Chapter 9). If a failing DIMM is replaced, use the
command pdt clear in the Service menu to clear out the PDT.
HP-UX 9.0x will halt upon detecting the presence of bad memory at boot up and
display the following message:
Enter
Enter
Enter
Troubleshooting 4–9