AT & T

AT & T GLOBALYST 510

AT & T GLOBALYST 515

Processor

SL80486SX/SL80486SX2/SL80486DX2/SL80486DX4/P24T/ 486Overdrive

Processor Speed

25/33/50(internal)/66(internal)100(internal)MHz

Chip Set

Unidentified

Video Chip Set

Cirrus Logic

Maximum Onboard Memory

64MB

Maximum Video Memory

1MB

Cache

256KB

BIOS

IBM

Dimensions

330mm x 218mm

I/O Options

Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA graphics pass through connector, VGA port, riser slot, cache slot

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

PS/2 mouse port

CN1

Floppy drive interface

J10

Serial port 1

CN2

VGA graphics pass-through connector

J14

Serial port 2

CN3

Front panel LEDS

J15

Parallel port

CN4

Speaker

J16

VGA port

CN5

Riser slot

SL1

IDE interface

J8

Cache slot

SL2

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

CMOS memory normal operation

J1

Pins 2 & 3 closed

 

CMOS memory clear

J1

Pins 1 & 2 closed

 

Jumper information unavailable

J3V

Unidentified

 

On board video enabled

SW1/1

On

 

On board video disabled

SW1/1

Off

»

Monitor type select color

SW1/2

On

 

Monitor type select monochrome

SW1/2

Off

Note: If a VGA processor is enabled, SW1/2 has no function. If the VGA controller is disabled, and a CGA or MDA controller is installed, set the switch to the above setting.

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

4MB

(1) 1M x 36

None

None

8MB

(1) 1M x 36

(1) 1M x 36

None

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

None

None

20MB

(1) 1M x 36

(1) 4M x 36

None

20MB

(1) 4M x 36

(1) 1M x 36

None

24MB

(1) 1M x 36

(1) 4M x 36

(1) 1M x 36

24MB

(1) 1M x 36

(1) 1M x 36

(1) 4M x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

None

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

36MB

(1) 1M x 36

(1) 4M x 36

(1) 4M x 36

36MB

(1) 4M x 36

(1) 1M x 36

(1) 4M x 36

40MB

(1) 1M x 36

(1) 1M x 36

(1) 8M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

52MB

(1) 1M x 36

(1) 4M x 36

(1) 8M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 8M x 36

Note: The location of banks 0, 1, & 2 are unidentified.

CACHE CONFIGURATION

Size

SL2

None

Not installed

256KB

256KB module installed

VIDEO MEMORY CONFIGURATION

Size

Bank 0

Bank 1

512KB

512KB

None

1MB

512KB

512KB

Note: Bank 0 is factory installed and is not configurable. The size of the upgrade ships are unidentified.

CPU SPEED SELECTION

Speed

JK1

25MHz

Pins 1 & 2, 5 & 6 closed

33MHz

Pins 3 & 4, 5 & 6 closed

50iMHz

Pins 1 & 2, 5 & 6 closed

66iMHz

Pins 3 & 4, 5 & 6 closed

100iMHz

Pins 3 & 4, 5 & 6 closed

CPU TYPE SELECTION

Type

JC1

JC2

JC3

JC4

SL80486SX

Pins 2 & 3 closed

Pins 2 & 3 closed

Closed

Closed

SL80486DX

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

SL80486DX2

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

SL80486DX4

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open

486Overdrive

Pins 1 & 2 closed

Pins 1 & 2 closed

Open

Open