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DTK PII-129 640K RAM Card

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Jumper Settings

Card Type

Memory card

Chip Set

Unidentified

Maximum Onboard Memory

640KB RAM (type unidentified)

I/O Options

Unidentified

Data Bus

Unidentified

USER CONFIGURABLE SETTINGS

Function

Label

Position

Parity check enabled

JP1

Pins 2 & 3 closed

Parity check disabled

JP1

Pins 1 & 2 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

128KB

4164

4164

None

128KB

41256

None

None

384KB

41256

4164

None

384KB

41256

41256

None

512KB

41256

41256

4164

576KB

41256

41256

41256

576KB

41256

41256

41256

640KB

41256

41256

41256

DRAM SWITCH CONFIGURATION

Size

SW1/4

SW1/5

SW1/6

128KB

Off

Off

Off

128KB

On

Off

Off

384KB

Off

On

Off

384KB

On

On

Off

512KB

Off

Off

On

576KB

On

Off

On

576KB

Off

On

On

640KB

On

On

On

MISCELLANEOUS TECHNICAL NOTES

Note: The diagram is unavailable and the purpose of SW1/1, SW1/2 and SW1/3

See Also