TANDY/RADIO SHACK
MEMORY EXPANSION ADAPTER (250-4027)
Card Type
Memory
Maximum Onboard Memory
8MB DRAM
Data Bus
Tandy 3000NL memory expansion bus
USER CONFIGURABLE SETTINGS
Setting
Label
Position
E1
Pins 2 & 3 closed
Computer has two memory expansion slots
Pins 1 & 2 closed
Note:E1 may not be present on all versions of this card.
DRAM CONFIGURATION
Bank 0
Bank 1
Bank 2
Bank 3
512KB
(2) 256K x 9
None
1MB
1.5MB
2MB
(2) 1M x 9
2.5MB
3MB
3.5MB
4MB
4.5MB
5MB
6MB
6.5MB
8MB
Note:The memory installed on the mainboard must be removed in order to use this card.
Within each bank, the SIMMs must be the same size. Banks may contain either 256K or 1M SIMMs.