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RAMPAGE AT (202079-001)

AST RESEARCH, INC.

RAMPAGE AT (202079-001)

Card Type

Memory card

Chip Set

Unidentified

Maximum Onboard Memory

2MB RAM (Type unidentified)

I/O Options

None

Data Bus

16-bit ISA

USER CONFIGURABLE SETTINGS

Function

Label

Position

Dual page mode enabled

SW1/9

On

 

Dual page mode disabled

SW1/9

Off

Factory configured - do not alter

SW1/10

N/A

Factory configured - do not alter (memory priority check)

SW2/8

Unidentified

NON-EXPANDED MEMORY SWITCH CONFIGURATION

Size

SW1/1

SW1/2

SW1/3

SW1/4

128KB

On

On

On

On

 

256KB

On

On

On

Off

 

384KB

On

On

Off

On

 

512KB

On

On

Off

Off

 

640KB

On

Off

On

On

 

768KB

On

Off

On

Off

 

896KB

On

Off

Off

On

 

1024KB

On

Off

Off

Off

 

1152KB

Off

On

On

On

 

1280KB

Off

On

On

Off

 

1408KB

Off

On

Off

On

 

1536KB

Off

On

Off

Off

 

1664KB

Off

Off

On

On

 

1792KB

Off

Off

On

Off

 

1920KB

Off

Off

Off

On

 

2048KB

Off

Off

Off

Off

STARTING MEMORY ADDRESS SELECTION

Address

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

 

0KB

On

On

On

On

On

On

On

 

128KB

On

On

On

On

On

On

Off

 

256KB

On

On

On

On

On

Off

On

 

384KB

On

On

On

On

On

Off

Off

512KB

On

On

On

On

Off

On

On

 

12MB

Off

Off

On

On

On

On

On

 

13MB

Off

Off

On

Off

On

On

On

 

14MB

Off

Off

Off

On

On

On

On

 

15MB

Off

Off

Off

Off

On

On

On

 

All Rampage

Off

Off

Off

Off

Off

Off

Off

Note: The Rampage AT may be set for any memory address from 0K to 15896K, Each switch represents a quantity of memory. SW2/1 is the Most Significant Bit and SW2/7 is the Least Significant Bit. The switches have the following values: SW2/1=8192K, SW2/2=4096K, SW2/3=2048K, SW2/4=1024K, SW2/5=512K, SW2/6=256K, and SW2/7=128K. Turn off the switches and add their values to obtain the correct starting memory address. (Off=1, On=0)

BASE I/O ADDRESS SELECTION

Setting

SW1/5

SW1/6

SW1/7

SW1/8

 

208h

On

On

On

On

218h

On

On

On

Off

 

228h

On

On

Off

On

 

238h

On

On

Off

Off

 

248h

On

Off

On

On

 

258h

On

Off

On

Off

 

268h

On

Off

Off

On

 

278h

On

Off

Off

Off

 

288h

Off

On

On

On

 

298h

Off

On

On

Off

 

2A8h

Off

On

Off

On

 

2B8h

Off

On

Off

Off

 

2C8h

Off

Off

On

On

 

2D8h

Off

Off

On

Off

 

2E8h

Off

Off

Off

On

 

2F8h

Off

Off

Off

Off

MISCELLANEOUS TECHNICAL NOTES

Note: The location and configuration of the memory is unidentified. The IBM model 339 AT does not support this board in the #20279-301 -A, -B, -C, or the #20279-302 - A revisions.