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486SLC2 VESA

IBM CORPORATION

486SLC2 VESA

Processor

486SLC2

Processor Speed

50(internal)/66(internal)MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

16MB

Maximum Video Memory

None

Cache

64/128/256KB

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

32-bit VESA local bus slots (3)

NPU Options

80387SX

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J4

Speaker

J8

Turbo LED

J5

Power LED & keylock

J9

Turbo switch

J6

Chassis fan power

JP9

Reset switch

J7

32-bit VESA local bus slots

SL1 – SL3

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Monitor type select color/EGA/VGA

JP10

Closed

 

Monitor type select monochrome

JP10

Open

 

Battery type select internal

JP11

Pins 2 & 3 closed

 

Battery type select external

JP11

Pins 1 & 2 closed

»

CPU memory read/write delay enabled

JP700

Pins 1 & 2 closed

 

CPU memory read/write delay disabled

JP700

Pins 2 & 3 closed

SIMM 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

8MB

(4) 1M x 9

(4) 1M x 9

16MB

(4) 4M x 9

None

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

64KB

(4) 8K x 8

(4) 8K x 8

(1) 8K x 8

128KB

(4) 32K x 8

None

(1) 32K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP12

JP13

JP14

JP15

JP16

64KB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

128KB

1 & 2

1 & 2

1 & 2

1 & 2

1 & 2

256KB

2 & 3

2 & 3

2 & 3

2 & 3

2 & 3

Note: Pins designated should be in the closed position.

CACHE JUMPER CONFIGURATION (CON’T)

Size

JP11

JP17

JP702

JP703

64KB

Open

Open

Open

Open

128KB

Closed

Open

Closed

Closed

256KB

Open

Closed

Closed

Closed

CPU SPEED SELECTION

Speed

JP1

JP2

JP3

JP4

JP5

JP704

50iMHz

Closed

Open

Open

Closed

2 & 3

1 & 2

66iMHz

Closed

Closed

Open

Open

2 & 3

1 & 2

Note: Pins designated should be in the closed position.

CPU ADS DELAY SELECTION

Setting

JP201

JP701

»

Enabled

Closed

Pins 1 & 2 closed

 

Disabled

Open

Pins 2 & 3 closed

VL BUS WAIT STATE SELECTION

Setting

JP18

»

0

Pins 1 & 2 closed

 

1

Pins 2 & 3 closed

VL BUS SPEED SELECTION

Speed

JP19

<= 33MHz

Pins 1 & 2 closed

>33 MHz

Pins 2 & 3 closed

LOCAL BUS CLOCK DELAY SELECTION

Setting

JP7

JP8

»

No delay

Pins 1 & 2 closed

Pins 1 & 2 closed

 

One gate delay

Pins 2 & 3 closed

Pins 2 & 3 closed