Tandy 1000 SX (250-1051)          Memory              Faxback Doc. # 1183

Note: Refer to Faxback Doc. # 1250 for Main Logic Board Layout.

Memory Expansion Options:

256K DRAM kit:
     25-1079 consists of eight 256K x 1 DRAM at 150 nanoseconds.
     RSU # 10542140

┌───────────────────────────────────────────────┐
│ Tandy 1000 SX (25-1051) - Expand from 384K to:│
├──────────┬────────────────────────────────────┤
│          │        Add to Main Logic Board     │
├──────────┼────────────────────────────────────┤
│ 640K     │           25-1079                  │
└──────────┴────────────────────────────────────┘

Make the following jumper changes when adding additional memory:

Remove jumper from E1 - E2 for 640K RAM.

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