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325AX/333AX/325AXB/333AXB Motherboard Settings and Configuration






CHAINTECH COMPUTER COMPANY, LTD.

325AX/333AX/325AXB/333AXB

Processor

80386SX/CX486SLC

Processor Speed

25/33MHz

Chip Set

ALI

Max. Onboard DRAM

16MB

Cache

None

BIOS

AMI

Dimensions

220mm x 190mm

I/O Options

None

NPU Options

80387SX/CX487SLC

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

J5

Power LED & keylock

J3

Turbo switch

J6

Speaker

J4

Reset switch

J7

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

Turbo enabled

J6

Closed

 

Turbo disabled

J6

Open

NPU synchronous with CPU

JP5

pins 1 & 2 closed

 

NPU asynchronous with CPU

JP5

pins 2 & 3 closed

Parity check enabled

JP15

Open

 

Parity check disabled

JP15

Closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

512KB

(2) 256K x 9

NONE

NONE

NONE

1MB

(2) 256K x 9

(2) 256K x 9

NONE

NONE

2MB

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

(2) 256K x 9

2MB

(2) 1M x 9

NONE

NONE

NONE

4MB

(2) 1M x 9

(2) 1M x 9

NONE

NONE

8MB

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

(2) 1M x 9

8MB

(2) 4M x 9

NONE

NONE

NONE

16MB

(2) 4M x 9

(2) 4M x 9

NONE

NONE








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