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UC 4915-C AIO

UNIDENTIFIED

UC 4915-C AIO

Processor

80486SX/CX487SX/80486DX/80486DX2/P23N/P23T/Pentium Overdrive

Processor Speed

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

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

External battery

J1

Speaker

J9

Serial port 1

J2

IDE interface LED

JP14

Game port

J4

Power LED & keylock

JP40

Parallel port

J5

Reset switch

JP41

Serial port 2

J6

Turbo switch

JP42

Floppy drive interface

J7

Turbo LED

JP43

IDE interface

J8

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

BIOS type select EPROM

JP2

pins 1 & 2 closed

 

BIOS type select flash BIOS

JP2

pins 2 & 3 closed

Floppy drive interface enabled

JP3

pins 1 & 2 closed

 

Floppy drive interface disabled

JP3

pins 2 & 3 closed

Parallel port enabled

JP4

pins 1 & 2 closed

 

Parallel port disabled

JP4

pins 2 & 3 closed

COM2/4 enabled

JP5

pins 1 & 2 closed

 

COM2/4 disabled

JP5

pins 2 & 3 closed

COM2 enabled

JP6

pins 1 & 2 closed

 

COM4 enabled

JP6

pins 2 & 3 closed

COM1 enabled

JP7

pins 1 & 2 closed

 

COM3 enabled

JP7

pins 2 & 3 closed

COM1/3 enabled

JP8

pins 1 & 2 closed

 

COM1/3 disabled

JP8

pins 2 & 3 closed

Printer I/O port select LPT2

JP9

pins 1 & 2 closed

 

Printer I/O port select LPT3

JP9

pins 2 & 3 closed

Monitor type select monochrome

JP10

pins 1 & 2 closed

 

Monitor type select color

JP10

pins 2 & 3 closed

Game port enabled

JP11

pins 1 & 2 closed

 

Game port disabled-

JP11

pins 2 & 3 closed

Hard drive installed

JP12

pins 2 & 3 closed

 

Hard drive not installed

JP12

pins 1 & 2 closed

IDE interface enabled

JP13

pins 1 & 2 closed

 

IDE interface disabled

JP13

pins 2 & 3 closed

Weitek VGA card not installed

JP30

pins 1 & 2 closed

 

Weitek VGA card installed

JP30

pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

1MB

(1) 256K x 36

NONE

NONE

NONE

2MB

(1) 512K x 36

NONE

NONE

NONE

2MB

(1) 256K x 36

(1) 256K x 36

NONE

NONE

3MB

(1) 512K x 36

NONE

(1) 256K x 36

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 512K x 36

NONE

(1) 256K x 36

(1) 256K x 36

4MB

(1) 512K x 36

NONE

(1) 512K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 512K x 36

NONE

(1) 1M x 36

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 512K x 36

NONE

(1) 1M x 36

(1) 256K x 36

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

DRAM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 2M x 36

NONE

NONE

NONE

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

9MB

(1) 2M x 36

NONE

(1) 256K x 36

NONE

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 512K x 36

NONE

(1) 2M x 36

NONE

10MB

(1) 2M x 36

NONE

(1) 256K x 36

(1) 256K x 36

10MB

(1) 2M x 36

NONE

(1) 512K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 2M x 36

NONE

(1) 1M x 36

NONE

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 2M x 36

NONE

(1) 1M x 36

(1) 256K x 36

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 2M x 36

NONE

(1) 1M x 36

(1) 1M x 36

16MB

(1) 2M x 36

NONE

(1) 2M x 36

NONE

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 512K x 36

NONE

(1) 4M x 36

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

19MB

(1) 512K x 36

NONE

(1) 4M x 36

(1) 256K x 36

19MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

20MB

(1) 4M x 36

(1) 1M x 36

NONE

NONE

21MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

NONE

22MB

(1) 512K x 36

NONE

(1) 4M x 36

(1) 1M x 36

22MB

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 2M x 36

NONE

(1) 4M x 36

NONE

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 2M x 36

NONE

(1) 4M x 36

(1) 256K x 36

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28MB

(1) 2M x 36

NONE

(1) 4M x 36

(1) 1M x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

32MB

(1) 4M x 36

(1) 4M x 36

NONE

NONE

33MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

NONE

34MB

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

36MB

(1) 512K x 36

NONE

(1) 4M x 36

(1) 4M x 36

36MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

NONE

37MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 256K x 36

40MB

(1) 2M x 36

NONE

(1) 4M x 36

(1) 4M x 36

40MB

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

48MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

NONE

49MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 256K x 36

52MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 1M x 36

64MB

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

(1) 4M x 36

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) 8K x 8

256KB

(4) 32K x 8

(4) 32K x 8

(1) 32K x 8

CACHE JUMPER CONFIGURATION

Size

JP31

JP34

JP35

JP36

64KB

Open

Open

Open

pins 1 & 2 closed

128KB

Open

Closed

pins 2 & 3 closed

pins 2 & 3 closed

256KB

Closed

Closed

pins 1 & 2 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION

Type

JP38

JP39

80486SX

pins 2 & 3 closed

Open

80486DX

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

80486DX2

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

P23N

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

P23T

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

Pentium Overdrive

pins 1 & 2, 3 & 4 closed

pins 2 & 3 closed

CPU TYPE CONFIGURATION (CX487SX)

Type

JP21

JP25

JP37

Installed

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2 closed

Not installed

pins 2 & 3 closed

pins 2 & 3 closed

pins 2 & 3 closed

CPU SPEED CONFIGURATION

Speed

JP26

JP27

25MHz

Closed

Closed

33MHz

Open

Closed

40MHz

Closed

Open

50iMHz

Closed

Closed

50MHz

Open

Open

66iMHz

Open

Closed