Max Ram: | 8MB |
Ram Type: | 1 x 72pin SIMM slot |
FPU: | Optional 68881 or 68882 at up to 50Mhz |
RTC: | Yes |
Connection: | A1200 Trapdoor slot |
A RAM card for the A1200 which plugs into the trapdoor slot of the A1200. This card is not PCMCIA friendly if it has more than 4MB of RAM installed. If you install 8MB on the card and require the use of the PCMCIA slot, you must move JP2 to the ON position to disable the upper 4MB of RAM. Rev B versions of the card support a PGA FPU whilst Rev C's require a PLCC FPU.
JumpersSIMM Size | JP1 (1-2) | JP1 (3-4) |
---|
1MB | ON | OFF |
2MB | OFF | ON |
4MB | ON | ON |
8MB | OFF | OFF |
SIMM STYLE | JP1 (5-6) | CLOCK SPEED JP3 |
---|
Single Sided | ON | Use A1200 Clock (1-2) |
Double Sided | OFF | Use RCA Oscillator (2-3) |
Note: When running clocked from the board (14.3MHz) the JP3 jumper bock should be on the left (1-2) postion. When using a faster FPU and Oscillator, JP3 jumper block should be moved to the right (2-3) position.