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MS-5123

ACHME COMPUTER, INC.

MS-5123

Processor

CX M1/Pentium

Processor Speed

75/80/90/100/120/133MHz

Chip Set

SIS

Max. Onboard DRAM

512MB

Cache

256/512/1024KB

BIOS

Award

Dimensions

280mm x 220mm

I/O Options

32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA feature connector, VGA interface, VRM connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 1

CN1

Speaker

JFP pins 6 - 10

Serial port 2

CN2

Turbo LED

JFP pins 12 & 13

Parallel port

CN3

Turbo switch

JFP pins 15 - 17

VGA interface

CN4

Reset switch

JFP pins 19 & 20

Floppy drive interface

CN5

IDE interface LED

JFP pins 21 & 22

IDE interface 2

CN6

Green PC connector

JG1

IDE interface 1

CN7

Green PC LED

JG2

External battery

JB1

32-bit PCI slots

PC1 - PC3

Chassis fan power

JFAN

PS/2 mouse interface

PSM

VGA feature connector

JFC

VRM connector

VRM

Power LED & keylock

JFP pins 1 - 5

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

PS/2 mouse IRQ12 enabled

JP11

Closed

 

PS/2 mouse IRQ12 disabled

JP11

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(1) 1M x 36

NONE

NONE

NONE

4MB

NONE

NONE

(1) 1M x 36

NONE

8MB

(1) 2M x 36

NONE

NONE

NONE

8MB

NONE

NONE

(1) 2M x 36

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

NONE

NONE

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

16MB

NONE

NONE

(1) 4M x 36

NONE

16MB

(1) 2M x 36

(1) 2M x 36

NONE

NONE

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 2M x 36

(1) 2M x 36

24MB

(1) 2M x 36

(1) 2M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 8M x 36

NONE

NONE

NONE

32MB

NONE

NONE

(1) 8M x 36

NONE

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

32MB

NONE

NONE

(1) 4M x 36

(1) 4M x 36

32MB

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

(1) 2M x 36

40MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 2M x 36

(1) 2M x 36

48MB

(1) 2M x 36

(1) 2M x 36

(1) 4M x 36

(1) 4M x 36

64MB

(1) 16M x 36

NONE

NONE

NONE

64MB

NONE

NONE

(1) 16M x 36

NONE

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

64MB

(1) 8M x 36

(1) 8M x 36

NONE

NONE

64MB

NONE

NONE

(1) 8M x 36

(1) 8M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

72MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

(1) 8M x 36

72MB

(1) 8M x 36

(1) 8M x 36

(1) 1M x 36

(1) 1M x 36

80MB

(1) 2M x 36

(1) 2M x 36

(1) 8M x 36

(1) 8M x 36

80MB

(1) 8M x 36

(1) 8M x 36

(1) 2M x 36

(1) 2M x 36

96MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

(1) 8M x 36

96MB

(1) 8M x 36

(1) 8M x 36

(1) 4M x 36

(1) 4M x 36

128MB

(1) 32M x 36

NONE

NONE

NONE

128MB

NONE

NONE

(1) 32M x 36

NONE

128MB

(1) 16M x 36

(1) 16M x 36

NONE

NONE

128MB

NONE

NONE

(1) 16M x 36

(1) 16M x 36

128MB

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

(1) 8M x 36

136MB

(1) 1M x 36

(1) 1M x 36

(1) 16M x 36

(1) 16M x 36

136MB

(1) 16M x 36

(1) 16M x 36

(1) 1M x 36

(1) 1M x 36

144MB

(1) 16M x 36

(1) 16M x 36

(1) 2M x 36

(1) 2M x 36

144MB

(1) 2M x 36

(1) 2M x 36

(1) 16M x 36

(1) 16M x 36

160MB

(1) 4M x 36

(1) 4M x 36

(1) 16M x 36

(1) 16M x 36

160MB

(1) 16M x 36

(1) 16M x 36

(1) 4M x 36

(1) 4M x 36

192MB

(1) 16M x 36

(1) 16M x 36

(1) 8M x 36

(1) 8M x 36

192MB

(1) 8M x 36

(1) 8M x 36

(1) 16M x 36

(1) 16M x 36

256MB

(1) 32M x 36

(1) 32M x 36

NONE

NONE

256MB

NONE

NONE

(1) 32M x 36

(1) 32M x 36

256MB

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

(1) 16M x 36

264MB

(1) 1M x 36

(1) 1M x 36

(1) 32M x 36

(1) 32M x 36

264MB

(1) 32M x 36

(1) 32M x 36

(1) 1M x 36

(1) 1M x 36

272MB

(1) 2M x 36

(1) 2M x 36

(1) 32M x 36

(1) 32M x 36

272MB

(1) 32M x 36

(1) 32M x 36

(1) 2M x 36

(1) 2M x 36

288MB

(1) 4M x 36

(1) 4M x 36

(1) 32M x 36

(1) 32M x 36

288MB

(1) 32M x 36

(1) 32M x 36

(1) 4M x 36

(1) 4M x 36

320MB

(1) 8M x 36

(1) 8M x 36

(1) 32M x 36

(1) 32M x 36

320MB

(1) 32M x 36

(1) 32M x 36

(1) 8M x 36

(1) 8M x 36

384MB

(1) 16M x 36

(1) 16M x 36

(1) 32M x 36

(1) 32M x 36

384MB

(1) 32M x 36

(1) 32M x 36

(1) 16M x 36

(1) 16M x 36

512MB

(1) 32M x 36

(1) 32M x 36

(1) 32M x 36

(1) 32M x 36

CACHE CONFIGURATION

Size

Bank 0

Bank 1

U13/U17

TAG

256KB

(4) 32K x 8

(4) 32K x 8

NONE

(1) 8K or (1) 16K x 8

256KB

NONE

NONE

(2) 32K x 32

(1) 8K or (1) 16K x 8

512KB (A)

(4) 64K x 8

(4) 64K x 8

NONE

(1) 16K x 8

512KB (B)

(4) 64K x 8

(4) 64K x 8

NONE

(1) 16K x 8

1MB

(4) 128K x 8

(4) 128K x 8

NONE

(1) 32K x 8

Note: U13 & U17 may not be present on all boards.

CACHE JUMPER CONFIGURATION

Size

JS1

JS2

256KB

pins 1 & 2 closed

pins 2 & 3 closed

512KB (A)

pins 3 & 4 closed

pins 3 & 4 closed

512KB (B)

pins 2 & 3 closed

pins 2 & 3 closed

1MB

pins 2 & 3 closed

pins 1 & 2 closed

Note: 512KB (A) uses 128AK TAG chip and 512KB (B) uses 129AK TAG chip.

CPU SPEED CONFIGURATION

Speed

SW1/1

SW1/2

SW1/3

SW1/4

SW1/5

SW1/6

75MHz

Off

Off

Off

Off

On

On

80MHz*

Off

Off

Off

On

On

On

90MHz

Off

Off

Off

Off

Off

On

100MHz

Off

Off

Off

Off

Off

Off

120MHz

Off

On

Off

Off

Off

On

120MHz*

On

Off

Off

On

On

On

133MHz

Off

On

Off

Off

Off

Off

Note: Speeds marked with an * are reserved for future CX M1 CPUs.

CPU VOLTAGE CONFIGURATION

Voltage

JV1

3.38v

Closed

3.52v

Open