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ALR 32-bit Memory Expansion (Rev. B)

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Jumper Settings

Card Type

Memory card

Maximum Onboard Memory

4MB

Data Bus

16-bit ISA

53890-1.png

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(18) 41256

None

None

None

2MB

(18) 41256

(18) 41256

None

None

3MB

(18) 41256

(18) 41256

(18) 41256

None

4MB

(18) 41256

(18) 41256

(18) 41256

(18) 41256

DRAM JUMPER CONFIGURATION

Size

W1

W2

512KB

Open

Open

1MB

Open

Closed

1.5MB

Closed

Closed

2MB

Closed

Closed

3MB

Closed

Closed

4MB

Closed

Closed

See Also