Msa104 style memory, Msa board layout – Unisys NX5820 User Manual
Page 70
MSA104 Style Memory
3–4
7017 6300–005
MSA104 Style Memory
The minimum memory capacity per domain utilizing the MSA style memory board is 192
megabytes. Memory capacity may be expanded to 1152 megabytes per domain in
increments of 192 megabytes by adding up to two additional MSA104-192 boards and an
additional MOD192
−
DM2 per memory board. MSA memory modules are 6U high cards.
Figure 3-1 depicts the board layout showing the location of the major components of the
MSA memory board. Since memory increments are in bank and segment order, the basic
192 megabyte board will have two DIMMs (00 AND 10) installed. A DIMM is comprised of
sixteen 16M X 4 BIT DRAMS and provides for 96 MB of memory. Memory capacity for the
board is expanded to 384 MB by adding two additional DIMMS, 01 AND 11.
DI
M
M
00
Conne
ct
or
DI
M
M
11
(Q
ua
d)
DI
M
M
10
DI
M
M
01
MSUX ASIC
Clock
Circuitry
TAP
Linker
Quads
Storage
Mwords MBytes
Bank 0
Seg 0
Seg 1
16Mx64
Full Quad
16Mx64
Full Quad
16Mx64
Full Quad
Bank 1
Seg 0
Seg 1
16Mx64
Full Quad
16Mx64
Full Quad
16Mx64
Full Quad
MSA Memory Increments
2
4
32
64
384
192
0091
(Q
ua
d)
(Q
ua
d)
(Q
ua
d)
192 MBytes
384 MBytes
DIMM No.
00
01
10
11
Figure 3–1. MSA Board Layout