HP XM600 hp kayak xm600 series 1, user's guide for minitower models - Page 33

Replacing and Upgrading RDRAM Memory, Removing and Replacing the Memory Expansion Card, Removing

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2 Installing and Replacing Hardware Parts in Your PC Workstation Removing, Replacing and Upgrading Memory on Kayak XU800 models Replacing and Upgrading RDRAM Memory There is a single Memory Expansion Card connector on the system board for an RDRAM Memory Expansion Card. NOTE Do not install a memory module directly into the connector for the Memory Expansion Card on the system board. The RDRAM Memory Expansion Card supports 2 or 4 RDRAM Memory Modules. Note the following constraints: • RDRAM modules must be installed in pairs. The first two sockets A0 and B0, closest to the system board, contain the first pair of modules. Upgrades are then installed in sockets A1 and B1. • Pairs must be of identical modules. For instance if A0 contains a 256MB PC800 ECC RDRAM then B0 must contain a 256MB PC800 ECC RDRAM. For this reason, all HP memory accessories for the XM800 contain 2 identical modules. • If sockets A1 and B1 are not used, an RDRAM Continuity Module must be installed in both sockets. Removing the Memory Expansion Card Removing and Replacing the Memory Expansion Card 1 Switch off the display and PC Workstation. Disconnect all power cables and any LAN or telecommunications cables. 2 Remove the PC Workstation's cover (refer to page 23 for detailed instructions). 3 Remove the HP UltraFlow Airflow Guide to obtain access to the RDRAM Memory Expansion Card. 4 For ease of installation, place the PC Workstation on its side with the system board facing upwards. 5 To access the Memory Expansion Card, remove the retaining bar that is in front of it (remove the screw and swing the retaining bar outwards). 33

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2
Installing and Replacing Hardware Parts in Your PC Workstation
Removing, Replacing and Upgrading Memory on Kayak XU800 models
33
Replacing and Upgrading RDRAM Memory
There is a single Memory Expansion Card connector on the system board
for an RDRAM Memory Expansion Card.
NOTE
Do
not
install a memory module directly into the connector for the
Memory Expansion Card on the system board.
The RDRAM Memory Expansion Card supports 2 or 4 RDRAM Memory
Modules.
Note the following constraints:
•
RDRAM modules must be installed in pairs. The first two sockets A0 and
B0, closest to the system board, contain the first pair of modules.
Upgrades are then installed in sockets A1 and B1.
•
Pairs must be of identical modules. For instance if A0 contains a 256MB
PC800 ECC RDRAM then B0 must contain a 256MB PC800 ECC
RDRAM. For this reason, all HP memory accessories for the XM800
contain 2 identical modules.
•
If sockets A1 and B1 are not used, an RDRAM Continuity Module must
be installed in both sockets.
Removing and Replacing the Memory Expansion Card
Removing the
Memory Expansion
Card
1
Switch off the display and PC Workstation. Disconnect all power cables
and any LAN or telecommunications cables.
2
Remove the PC Workstation’s cover (refer to page 23 for detailed
instructions).
3
Remove the HP UltraFlow Airflow Guide to obtain access to the RDRAM
Memory Expansion Card.
4
For ease of installation, place the PC Workstation on its side with the
system board facing upwards.
5
To access the Memory Expansion Card, remove the retaining bar that is
in front of it (remove the screw and swing the retaining bar outwards).