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P575/90

TEXAS MICROSYSTEMS, INC.

P575/90

Processor

Pentium

Processor Speed

90/100MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

128MB

Maximum Video Memory

None

Cache

256/512KB

BIOS

Phoenix

Dimensions

337mm x 122mm

I/O Options

Floppy drive interface, IDE interface, SCSI interface, parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

SCSI interface

CN1

Serial port 1

CN6

IDE interface

CN2

Parallel port

CN7

Floppy drive interface

CN3

AT keyboard connector

CN8

Optional keyboard connector

CN4

Hard drive LED

JP15

Serial port 2

CN5

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Cache type select write back

JP1

Open

 

Cache type select write through

JP1

Closed

Pipeline mode enabled

JP2

Closed

 

Pipeline mode disabled

JP2

Open

Watchdog timer enabled

JP4

Pins 1 & 2 closed

 

Watchdog timer disabled

JP4

Pins 2 & 3 closed

Factory configured - do not alter

JP5

Pins 2 & 3 closed

Factory configured - do not alter

JP6

Pins 2 & 3 closed

Factory configured - do not alter

JP7

Pins 2 & 3 closed

Factory configured - do not alter

JP8

Pins 2 & 3 closed

Cache type select burst

JP10

Pins 2 & 3 closed

 

Cache type select standard

JP10

Pins 1 & 2 closed

SCSI speed select 40MHz

JP13

Pins 1 & 2 closed

 

SCSI speed select 33MHz

JP13

Pins 2 & 3 closed

PS/2 IRQ 12 enabled

JP14

Pins 2 & 3 closed

 

Next Step OS used

JP14

Pins 1 & 2 closed

Monitor type select color

SW1/1

On

 

Monitor type select monochrome

SW1/1

Off

Flash BIOS enabled

SW1/2

Off

 

Flash BIOS disabled

SW1/2

On

CMOS memory normal operation

SW1/3

Off

 

CMOS memory clear

SW1/3

On

Factory configured - do not alter

SW1/4

Unidentified

DRAM CONFIGURATION

Size

Bank 0

Bank 1

8MB

(2) 1M x 36

None

16MB

(2) 2M x 36

None

16MB

(2) 1M x 36

(2) 1M x 36

24MB

(2) 2M x 36

(2) 1M x 36

32MB

(2) 4M x 36

None

32MB

(2) 2M x 36

(2) 2M x 36

40MB

(2) 4M x 36

(2) 1M x 36

48MB

(2) 4M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

64MB

(2) 4M x 36

(2) 4M x 36

72MB

(2) 8M x 36

(2) 1M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

CACHE CONFIGURATION

Note: The location of the cache is unidentified.

CACHE JUMPER CONFIGURATION

Size

JP9

JP11

JP12

None

N/A

Pins 1 & 2 closed

Pins 1 & 2 closed

256KB

Pins 1 & 2 closed

Pins 2 & 3 closed

Pins 1 & 2 closed

512KB

Pins 2 & 3 closed

Pins 2 & 3 closed

Pins 2 & 3 closed

CPU SPEED SELECTION

Speed

JP3

1/2

Closed

2/3

Open