CSS LABORATORIES, INC.

MAXSYS 462, 4/100 VL

Processor

80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive

Processor Speed

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

Chip Set

OPTI

Max. Onboard DRAM

256MB

Cache

64/128/256/512KB

BIOS

Unidentified

Dimensions

355mm x 305mm

I/O Options

32-bit VESA local bus slot, CPU slot, floppy drive interface, IDE interface, parallel port, auxiliary parallel port, serial ports (2), auxiliary serial ports (2), auxiliary keyboard connectors (2)

NPU Options

4167

CONNECTIONS

Purpose

Location

Purpose

Location

Speaker

J4

Parallel port

PJ2

Power LED & keylock

J5

Serial port 1

PJ3

Front panel connector

J39

Serial port 2

PJ4

External IDE interface LED

J40

IDE interface

PJ5

Reset switch

J41 pins 1 & 2

Auxiliary parallel port

PJ2A

Turbo switch

J41 pins 3 & 4

Auxiliary serial port 1

PJ3A

Auxiliary keyboard connector

J11B

Auxiliary serial port 2

PJ4A

Auxiliary keyboard connector

J11A

CPU slot

SL1

IDE interface LED

LED

32-bit VESA local bus slot

SL2

Floppy drive interface

PJ1

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

 

Floppy drive interface enabled

FDD

pins 2 & 3 closed

 

Floppy drive interface disabled

FDD

pins 1 & 2 closed

 

IDE interface enabled

IDE

pins 2 & 3 closed

 

IDE interface disabled

IDE

pins 1 & 2 closed

»

CPU type select synchronous

JP1

pins 1 & 2 closed

 

CPU type select asynchronous

JP1

pins 2 & 3 closed

 

Monitor type select color

JP9

pins 2 & 3 closed

 

Monitor type select monochrome

JP9

pins 1 & 2 closed

»

Factory configured - do not alter

JP20

Open

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

4MB

(4) 1M x 9

NONE

NONE

NONE

8MB

(4) 1M x 9

(4) 1M x 9

NONE

NONE

12MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

NONE

16MB

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

NONE

NONE

NONE

20MB

(4) 1M x 9

(4) 4M x 9

NONE

NONE

24MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

NONE

24MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

NONE

28MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

28MB

(4) 1M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

32MB

(4) 4M x 9

(4) 4M x 9

NONE

NONE

36MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

NONE

36MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

NONE

40MB

(4) 1M x 9

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

40MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

40MB

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

(4) 1M x 9

48MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

NONE

52MB

(4) 1M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

Note: Banks 2 & 3 are located on the CPU card.

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

52MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 1M x 9

64MB

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

(4) 4M x 9

64MB

(4) 16M x 9

NONE

NONE

NONE

128MB

(4) 16M x 9

(4) 16M x 9

NONE

NONE

192MB

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

NONE

256MB

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

(4) 16M x 9

Note: Banks 2 & 3 are located on the CPU card.

CPU SPEED CONFIGURATION

Speed

JP6

JP7

25MHz

Open

Open

33MHz

Open

Closed

50iMHz

Open

Open

50MHz

Closed

Closed

66iMHz

Open

Closed

Note: See also JP1 in User Configurable Settings.

PARALLEL PORT CONFIGURATION

LPT

IRQ

I/O address

PRT

P0

P1

N/A

N/A

Disabled

N/A

1 & 2

1 & 2

LPT1

IRQ7

3BCh

2 & 3

2 & 3

1 & 2

LPT2

IRQ5

278h

1 & 2

2 & 3

2 & 3

LPT3

IRQ7

378h

2 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position

SERIAL PORT 1 CONFIGURATION

COM

IRQ

I/O address

PJ6

S0

S1

N/A

N/A

Disabled

N/A

1 & 2

1 & 2

COM 1

IRQ4

3F8h

1 & 2

2 & 3

2 & 3

COM 2

IRQ3

2F8h

1 & 3

1 & 2

2 & 3

Note: Pins designated should be in the closed position

SERIAL PORT 2 CONFIGURATION

COM

IRQ

I/O address

PJ6

S2

S3

N/A

N/A

Disabled

N/A

1 & 2

1 & 2

COM 1

IRQ4

3F8h

2 & 4

1 & 2

2 & 3

COM 2

IRQ3

2F8h

3 & 4

2 & 3

2 & 3

Note: Pins designated should be in the closed position

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Factory configured - do not alter

JP8

N/A

»

Factory configured - do not alter

JP77

N/A

CACHE CONFIGURATION

Size

Bank 0

Bank 1

64KB

(4) 8K x 8

(4) 8K x 8

128KB

(4) 32K x 8

NONE

256KB

(4) 32K x 8

(4) 32K x 8

512KB

(4) 128K x 8

NONE

CACHE TAG CONFIGURATION

Size

TAG (U54)

TAG (U55)

TAG (U56)

TAG (U72)

64KB

NONE

(1) 8K x 8

NONE

(1) 16K/64K x 1

128KB

NONE

(1) 8K x 8

NONE

(1) 16K/64K x 1

256KB

NONE

(1) 8K x 8

(1) 8K x 8

(1) 16K/64K x 8

512KB

NONE

(1) 32K x 8

NONE

(1) 64K x 1

CACHE JUMPER CONFIGURATION

Size

JP2

JP3

JP4

JP5

JP16

JP17

JP18

64KB

2 & 3

Open

Open

Open

Open

Open

Open

128KB

1 & 2

Closed

Open

Open

Closed

Open

Open

256KB

2 & 3

Closed

Closed

Open

Closed

Closed

Open

512KB

1 & 2

Closed

Closed

Closed

Closed

Closed

Closed

Note: Pins designated should be in the closed position.

CPU TYPE CONFIGURATION

Type

JP10

JP11

80486SX

pins 2 & 3 closed

Open

80487SX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

80486DX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

80486DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

CPU SPEED CONFIGURATION

Speed

JP12

25MHz

pins 2 & 3 closed

33MHz

pins 2 & 3 closed

50iMHz

pins 2 & 3 closed

50MHz

pins 1 & 2 closed

66iMHz

pins 2 & 3 closed

BASE MEMORY CONFIGURATION

Size

JP20

JP21

384KB

pins 2 & 3 closed

Open

512KB

pins 2 & 3 closed

Closed

640KB

pins 1 & 2 closed

Any setting