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PAT48PL

TMC RESEARCH CORPORATION

PAT48PL

Processor

80486SX/80487SX/80486DX/ODP486SX/80486DX2

Processor Speed

16/20/25/33/50(internal)/66(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

None

BIOS

AMI

Dimensions

254mm x 218mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Turbo LED

J6 pins 8 & 18

IDE LED out

J5

Reset switch

J6 pins 9 & 19

Speaker

J6 pins 1 - 4

IDE LED in

J6 pins 10 & 20

Turbo switch

J6 pins 7 & 17

Power LED & keylock

J6 pins 11 - 15

Note:Board may be supplied with a surface mounted 80486SX.

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation (internal battery)

JP1

pins 2 & 3 closed

 

CMOS memory normal operation (external battery at J1)

JP1

Open

 

CMOS memory clear

JP1

pins 1 & 2 closed

Monitor type select color

JP2

Closed

 

Monitor type select monochrome

JP2

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

1MB

(4) 256K x 9

NONE

2MB

(4) 256K x 9

(4) 256K x 9

4MB

(4) 1M x 9

NONE

5MB

(4) 256K x 9

(4) 1M x 9

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

32MB

(4) 4M x 9

(4) 4M x 9

CPU TYPE CONFIGURATION

Type

RNA

RNB

RNC

80486SX

Not installed

Installed

Not installed

80487SX

Installed

Not installed

Not installed

ODP486SX

Installed

Not installed

Not installed

80486DX

Not installed

Not installed

Installed

80486DX2

Not installed

Not installed

Installed

Note:Although there are two locations for CPUs, only one may be used at a time.