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Maintenance and Service Guide 8-7
Table 8-5. Jumper Settings for the 32-Bit System Memory Board (assy. no.
000413)
Jumper Selection Function Memory Selected
E1 to E2, E4 to E5
E7 to E8
256 Kbytes of base memory selected
No extended memory
1-megabyte
E2 to E3, E4 to E5
E7 to E8
512 Kbytes of base memory selected
No extended memory selected
1-megabyte
E2 to E3, E5 to E6
E7 to E8
640 Kbytes of base memory selected
No extended memory selected (default)
1-megabyte
E1 to E2, E4 to E5
E8 to E9
256 Kbytes of base memory selected
1024 Kbytes of extended memory selected
2-megabyte or
above
E2 to E3, E4 to E5
E8 to E9
512 Kbytes of base memory selected
1024 Kbytes extended memory selected.
2-megabyte or
above
E2 to E3, E5 to E6,
E8 to E9
640 Kbytes of base memory selected
1024 Kbytes of extended memory selected
2-megabyte or
above
CAUTION
Do not connect jumpers E3 to E4 or E6 to E7;
connecting these jumpers damages the 32-bit
System Memory Board.