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PAT48PM

TMC RESEARCH CORPORATION

PAT48PM

Processor

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

Processor Speed

20/25/33/40(internal)/50/66(internal)MHz

Chip Set

OPTI

Max. Onboard DRAM

32MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J1 pins 1 - 4

IDE LED in

J1 pins 10 & 20

Turbo switch

J1 pins 7 & 17

Power LED & keylock

J1 pins 11 - 15

Turbo LED

J1 pins 8 & 18

IDE LED out

J2

Reset switch

J1 pins 9 & 19

External battery

J4

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

CMOS memory normal operation (internal battery)

JP1

pins 2 & 3 closed

 

CMOS memory normal operation (external battery at J4)

JP1

Open

 

CMOS memory clear

JP1

pins 1 & 2 closed

Bus speed select CLKIN/4

JP2

Open

 

Bus speed select CLKIN/6

JP2

Closed

Monitor type select color

JP3

Closed

 

Monitor type select monochrome

JP3

Open

CPU speed (CLKIN) select iOSC/1

JP4

pins 1 & 2 closed

 

CPU speed (CLKIN) select iOSC/2

JP4

pins 2 & 3 closed

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

20MB

(4) 4M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG (U41)

TAG (U42)

Resistor Installed

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 4K x 1

RND

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 16K x 1

RND

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

(1) 64K x 1

RND

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 16K x 1

RNE

128KB

(4) 32K x 8

NONE

(1) 8K x 8

(1) 64K x 1

RNE

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 16K x 1

RNF

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

(1) 64K x 1

RNF

Notes: If DRAM is £ 16MB, all cache sizes may be installed; if DRAM is >16MB, 128 or 256KB cache must be installed.

CPU TYPE CONFIGURATION

Type

RNA

RNB

RNC

80486SX

Not installed

Not installed

Installed

80487SX

Not installed

Installed

Not installed

ODP486SX

Not installed

Installed

Not installed

80486DX

Installed

Not installed

Not installed

80486DX2

Installed

Not installed

Not installed