KINGSTON TECHNOLOGY CORPORATION

MCMASTER MC33PD/MC25PS

Processor

80486SX/80486DX

Processor Speed

25/33MHz

Chip Set

None (utilizes chipset on PS/2 main board)

Max. Onboard DRAM

64MB

SRAM Cache

128KB

BIOS

None (utilizes BIOS on PS/2 main board)

Dimensions

330mm x 100mm

I/O Options

32-bit VESA local processor slot

NPU Options

None

CONNECTIONS

Purpose

Location

32-bit VESA local processor slot

S1

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

CPU select 80486DX

J100

pins 1 & 2 closed

 

CPU select 80486SX

J100

pins 2 & 3 closed

»

Microchannel Ready timing standard

J700

pins 2 & 3 closed

 

Microchannel Ready timing modified

J700

pins 1 & 2 closed

»

Local bus fast write transfer mode enabled

J1101

pins 1 & 2 closed

 

Local bus fast write transfer mode disabled

J1101

pins 2 & 3 closed

DRAM CONFIGURATION

Size

J801

Bank 0

Bank 1

4MB

pins 2 & 3 closed

(1) 1024K x 32

NONE

8MB

pins 2 & 3 closed

(1) 1024K x 32

(1) 1024K x 32

8MB

pins 2 & 3 closed

(1) 2048K x 32

NONE

12MB

pins 2 & 3 closed

(1) 2048K x 32

(1) 1024K x 32

16MB

pins 2 & 3 closed

(1) 2048K x 32

(1) 2048K x 32

16MB

pins 1 & 2 closed

(1) 4096K x 32

NONE

20MB

pins 1 & 2 closed

(1) 4096K x 32

(1) 1024K x 32

24MB

pins 1 & 2 closed

(1) 4096K x 32

(1) 2048K x 32

32MB

pins 1 & 2 closed

(1) 4096K x 32

(1) 4096K x 32

32MB

pins 1 & 2 closed

(1) 8192K x 32

NONE

36MB

pins 1 & 2 closed

(1) 8192K x 32

(1) 1024K x 32

40MB

pins 1 & 2 closed

(1) 8192K x 32

(1) 2048K x 32

48MB

pins 1 & 2 closed

(1) 8192K x 32

(1) 4096K x 32

64MB

pins 1 & 2 closed

(1) 8192K x 32

(1) 8192K x 32

Note:Where available, 36-bit SIMMs can be substituted for 32-bit SIMMs.