HP Visualize b1000 hp Visualize b1000, c3000, c3600 workstations service handb - Page 34

Memory

Page 34 highlights

Product Information Memory Memory The main memory for an HP VISUALIZE B Class and C Class workstation can vary from a minimum of 128 MBytes to a maximum of 2 GBytes. The workstation has eight memory card slots. Currently the B Class and C Class workstations support only 128 MByte and 256 MByte memory DIMM cards in these slots. To install DIMM cards in the B Class and C Class workstation reference "Installing Additional Memory" on page 141 in this Service Handbook. CAUTION If memory is installed improperly or it is defective the B Class and C Class workstation operating system will not boot-up, and a DIMM error will appear in the LCD. If an error does occur, reference Chapter 3, "Troubleshooting" for additional information. Memory Failures The HP VISUALIZE B Class and C Class system (with HP-UX 10.20 or HP-UX 11.0 ACE 9911) uses Memory Page Deallocation, a feature that allows the system to provide information to the operating system about memory failures. 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 Enter DUI>logtool Enter LOGTOOL>memrpt detail Enter The PDT can also be checked using the pdt command in the Service menu of the Boot Console Handler (Refer to Chapter 6). If you replace a defective DIMM, use the Service Menu pdt clear command to clear out the PDT. 34 Chapter 1

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34
Chapter 1
Product Information
Memory
Memory
The main memory for an HP V
ISUALIZE
B Class and C Class workstation can vary from a
minimum of 128 MBytes to a maximum of 2 GBytes. The workstation has eight memory
card slots. Currently the B Class and C Class workstations support only 128 MByte and
256 MByte memory DIMM cards in these slots.
To install DIMM cards in the B Class and C Class workstation reference “Installing
Additional Memory” on page 141 in this Service Handbook.
CAUTION
If memory is installed improperly or it is defective the B Class and C Class
workstation operating system will
not
boot-up, and a DIMM error will appear
in the LCD. If an error does occur, reference Chapter 3, “Troubleshooting” for
additional information.
Memory Failures
The HP V
ISUALIZE
B Class and C Class system (with HP-UX 10.20 or HP-UX 11.0 ACE
9911) uses Memory Page Deallocation, a feature that allows the system to provide
information to the operating system about memory failures.
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
Enter
DUI>logtool
Enter
LOGTOOL>memrpt detail
Enter
The PDT can also be checked using the
pdt
command in the Service menu of the Boot
Console Handler (Refer to Chapter 6). If you replace a defective DIMM, use the Service
Menu
pdt clear
command to clear out the PDT.