Service manual

6.1 MS65A Physical Description
The <REFERENCE>(xma2) memory module is a metal-oxide
semiconductor (MOS), dynamic random access memory
(DRAM), which provides up to 128 Mbytes of data
storage. The memory module is designed for use with the
<REFERENCE>(6000) system through the XMI bus.
Figure 6–1: MS65A Module
EEPROM
ZIF
CONNECTOR
SEGMENTS
XMI
CORNER
msb-0454-90
YELLOW
SELF-TEST
LED
GREEN
POWER
LED
CMOS
GATE ARRAY
DRAMS DRAMS
DRAMS
DATA
MUXs
DATA
MUXs
DRAM
CONTROL/ADDRESS
BUFFERS
BLOCK STATE
BUFFER
SMALL
RED
LED
6–2 VAX 6000 Models 300 and 400 Service Manual