Add-on modules
Memory boards
U41029-J-Z146-1-7400
English - 19
Memory boards
The memory board is equipped with 16 slots for memory modules. The organization in four memory
banks A to D enables fast memory access with four-fold interleave. The maximum memory
configuration is 4 Gbytes per memory board.
3A
2A
2B
3B
2C
3C
2D
3D
1A
0A
0B
1B
0C
1C
0D
1D
3A
2A
2B
3B
2C
3C
2D
3D
1A
0A
0B
1B
0C
1C
0D
1D
Four identical memory modules must be installed per memory bank. Partial equipping of a memory
bank is not possible. The equipping sequence of the memory banks is arbitrary.
Each slot has a clear address (e.g. 2B): Here the letter specifies the memory bank to which the slot
belongs, and the number specifies the slot number within the memory bank. 2B therefore
designates slot 2 in memory bank B.
The memory modules must meet the following specifications:
•
Socket:
DIMM
•
Memory type:
EDO-DRAM
•
Voltage:
3.3 V
•
Speed:
50 ns or 60 ns
•
Refresh mode:
2k, 4k or 8k
•
Memory organization:
4Mx72, 8Mx72, 16Mx72 or 32Mx72
•
Memory size: 32 Mbyte, 64 Mbyte, 128 Mbyte or 256 Mbyte
•
Memory technology:
16 Mbit or 64 Mbit
Installing memory modules
²
Flip the holders on each side of the relevant location outwards.
²
Insert the memory module in the slot while folding the side holders up until the memory module
engages.
Removing a memory module
²
Flip the holders to the right and left of the location outwards.
²
Pull the memory module out of its location.
Summary of Contents for PRIMERGY 870
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