IBM 8651RM0 Hardware Maintenance Manual - Page 162

Video Memory

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Video Memory Notes Depending on the server model, the server system board comes with either 512 KB or 1 MB of preinstalled video memory. If the server has a 1 MB memory buffer, the server controller will support high-resolution graphics and text modes with 132 columns. If the server has 512 KB of preinstalled video memory, you can increase the memory buffer size to 1 MB by installing a 40-pin, 256 KB, 16-bit, 70 ns, complementary metal oxide semiconductor (CMOS) dynamic random-access memory (DRAM) module with Fast Page Mode, such as Samsung KM416C256AJ-7, Hitachi HM514260AJ7R, or equivalent. To install video memory: 1. Remove both processor boards to allow you to access the DRAM on the system board. (See "Processor or Memory Board" on page 121.) 2. Install the DRAM in the socket: a. Locate the dot 2 on the DRAM. b. Carefully align the dot on the DRAM with the beveled corner of the video-memory socket 1 on the system board. (There is also a dot 2 on the system board at the beveled corner of the socket to help you align the DRAM correctly.) c. Press the DRAM down firmly into the socket. 154 Netfinity Server HMM

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Video Memory
Notes
Depending on the server model, the server
system board comes with either 512 KB or 1 MB
of preinstalled video memory.
If the server has a 1 MB memory buffer, the
server controller will support high-resolution
graphics and text modes with 132 columns.
If the server has 512 KB of preinstalled video
memory, you can increase the memory buffer
size to 1 MB by installing a 40-pin, 256 KB,
16-bit, 70 ns, complementary metal oxide
semiconductor (CMOS) dynamic random-access
memory (DRAM) module with Fast Page Mode,
such as Samsung KM416C256AJ-7, Hitachi
HM514260AJ7R, or equivalent.
To install video memory:
1.
Remove both processor boards to allow you to
access the DRAM on the system board.
(See
“Processor or Memory Board” on page
121.)
2.
Install the DRAM in the socket:
a.
Locate the dot
2
on the DRAM.
b.
Carefully align the dot on the DRAM with the
beveled corner of the video-memory socket
1
on the system board.
(There is also a dot
2
on the system board at the beveled corner of the
socket to help you align the DRAM correctly.)
c.
Press the DRAM down firmly into the socket.
154
Netfinity Server HMM