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32M VME 4/4xx
Thirty-two megabytes of ECC memory with onboard refresh control.
All locations are with component side up and the VME connectors away from you.
There are four jumpers.
J0101 Enable SET.RDY (single jumper in far left) JUMPED
J0301 32M/128M (single jumper in far middle) JUMPED
J0302 32M/128M (single jumper in far middle) UNJUMPED
J0310-J0315 (block in near left corner, accessible through top of back
edge, J0310 at bottom)
0 first memory board (J0310 jumped)
1 second memory board (J0311 jumped)
2 third memory board (J0312 jumped)
3 fourth memory board (J0313 jumped)
4 fifth memory board (J0314 jumped)
5 sixth memory board (J0315 jumped)
There are five LEDs on the upper rear edge of the board. In normal operation,
only the two green LEDs should be lit.
UE Uncorrectable error (when lit) RED
CE Correctable error (when lit) YELLOW
DIS CPU access disabled (when lit) YELLOW
CPU CPU accessing memory GREEN
This LED flickers because it is only lit when the CPU is actually accessing
the memory on the board. If the LED is not flickering, that simply means
you have more memory than you need at the moment -- the board is not being
REF Refresh OK (when lit) GREEN
If this LED is not lit, refresh has failed and the board should be repaired
Note that SunOS 4.0.3 only supports up to 256M of memory, and SunOS 4.1
(PSR A) requires the 4.1 PSR A Sun-4 PMEG patch to support over 256M of
Power requirements are +5V @ 15.6A.
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Last modified: 2000.10.29.14.38.37 CST
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