...because we can't all be on the bleeding edge...





UM4981 AIO

ELITEGROUP COMPUTER SYSTEMS, INC.

UM4981 AIO

Processor

CX486S/U5S/SL80486SX/80486SX/SL80486SX2/80486SX2/AM486DX/ AM486DXL/CX486DX/SL80486DX/80486DX/AM486DXL2/AM486DX2/ CX486DX2/SL80486DX2/80486DX2/P24D/80486DX4

Processor Speed

25/33/40/50(internal)/50/66(internal)/75(internal)/100(internal)MHz

Chip Set

UMC

Max. Onboard DRAM

64MB

Cache

64/128/256KB

BIOS

Phoenix

Dimensions

330mm x 218mm

I/O Options

32-bit VESA local bus slots (2), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Parallel port

J1

Power LED & keylock

JP30

Serial port 1

J2

Speaker

JP31

Serial port 2

J3

Reset switch

JP32

Floppy drive interface

J4

Turbo LED

JP33

IDE interface (primary)

J5

Turbo switch

JP34

IDE interface (secondary)

J6

IDE interface LED

JP39

External battery

JP1

32-bit VESA local bus slots

SL1 & SL2

Green PC connector

JP15

   

USER CONFIGURABLE SETTINGS

Function

Jumper

Position

»

Flash BIOS voltage select 5v

JP2

pins 1 & 2 closed

 

Flash BIOS voltage select 12v

JP2

pins 2 & 3 closed

»

On board I/O enabled

JP3

pins 1 & 2 closed

 

On board I/O disabled

JP3

pins 2 & 3 closed

»

Parallel port IRQ select IRQ7

JP4

pins 2 & 3 closed

 

Parallel port IRQ select IRQ5

JP4

pins 1 & 2 closed

»

Factory configured - do not alter

JP7

N/A

»

Parallel port mode select normal mode

JP8

Open

 

Parallel port mode select ECP mode

JP8

Closed

»

Primary IDE interface enabled

JP35

pins 1 & 2 closed

 

Primary IDE interface disabled

JP35

pins 2 & 3 closed

»

Secondary IDE interface enabled

JP36

pins 1 & 2 closed

 

Secondary IDE interface disabled

JP36

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) 256K x 36

(1) 256K x 36

NONE

NONE

2MB

NONE

NONE

(1) 512K x 36

NONE

3MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

NONE

4MB

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

4MB

NONE

NONE

(1) 512K x 36

(1) 512K x 36

4MB

(1) 1M x 36

NONE

NONE

NONE

5MB

(1) 1M x 36

(1) 256K x 36

NONE

NONE

6MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

NONE

7MB

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

(1) 256K x 36

8MB

(1) 1M x 36

(1) 1M x 36

NONE

NONE

8MB

NONE

NONE

NONE

(1) 2M x 36

9MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

NONE

10MB

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

12MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

NONE

13MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

16MB

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

16MB

NONE

NONE

(1) 2M x 36

(1) 2M x 36

16MB

(1) 4M x 36

NONE

NONE

NONE

17MB

(1) 4M x 36

(1) 256K x 36

NONE

NONE

18MB

(1) 4M x 36

(1) 256K x 36

(1) 256K x 36

NONE

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) 4M x 36

(1) 1M x 36

(1) 256K x 36

(1) 256K x 36

24MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

NONE

25MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 256K x 36

28MB

(1) 4M x 36

(1) 1M x 36

(1) 1M x 36

(1) 1M x 36

DRAM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

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) 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) 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

JP22

JP23

JP24

JP25

64KB

pins 2 & 3 closed

Open

Open

Open

128KB

pins 1 & 2 closed

pins 1 & 2 closed

Open

Closed

256KB

pins 2 & 3 closed

pins 2 & 3 closed

Closed

Closed

CPU TYPE CONFIGURATION

Type

JP16

JP17

JP18

CX486S

pins 2 & 3, 4 & 5 closed

pins 2 & 3, 4 & 5 closed

pins 1 & 2, 3 & 4, 5 & 6 closed

U5S

Open

pins 1 & 2 closed

pins 2 & 3 closed

SL80486SX

pins 1 & 2, 3 & 4 closed

pins 5 & 6 closed

pins 1 & 2 closed

80486SX

Open

Open

pins 2 & 3 closed

SL80486SX2

pins 1 & 2, 3 & 4 closed

pins 5 & 6 closed

pins 1 & 2 closed

80486SX2

Open

Open

pins 2 & 3 closed

AM486DX

Open

Open

pins 2 & 3 closed

AM486DXL

Open

pins 1 & 2 closed

pins 2 & 3 closed

CX486DX

pins 2 & 3 closed

pins 2 & 3, 4 & 5 closed

pins 1 & 2, 3 & 4, 5 & 6 closed

SL80486DX

pins 1 & 2, 3 & 4 closed

pins 5 & 6 closed

pins 1 & 2 closed

80486DX

Open

Open

pins 2 & 3 closed

AM486DX2

Open

Open

pins 2 & 3 closed

AM486DXL2

Open

pins 1 & 2 closed

pins 2 & 3 closed

CX486DX2

pins 2 & 3 closed

pins 2 & 3, 4 & 5 closed

pins 1 & 2, 3 & 4, 5 & 6 closed

SL80486DX2

pins 1 & 2, 3 & 4 closed

pins 5 & 6 closed

pins 1 & 2 closed

80486DX2

Open

Open

pins 2 & 3 closed

P24D

pins 1 & 2, 3 & 4 closed

pins 3 & 4, 5 & 6 closed

pins 1 & 2, 4 & 5 closed

80486DX4

pins 1 & 2, 3 & 4 closed

pins 5 & 6 closed

pins 1 & 2 closed

CPU TYPE CONFIGURATION (CON’T)

Type

JP19

JP20

JP21

CX486S

pins 1 & 2, 3 & 4 closed

Open

pins 2 & 3 closed

U5S

pins 2 & 3 closed

pins 3 & 4 closed

pins 2 & 3 closed

SL80486SX

pins 1 & 2 closed

Open

pins 2 & 3 closed

80486SX

Open

Open

pins 2 & 3 closed

SL80486SX2

pins 1 & 2 closed

Open

pins 2 & 3 closed

80486SX2

Open

Open

pins 2 & 3 closed

AM486DX

Open

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

AM486DXL

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

CX486DX

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

SL80486DX

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

80486DX

Open

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

AM486DX2

Open

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

AM486DXL2

pins 2 & 3 closed

pins 1 & 2, 3 & 4 closed

pins 1 & 2, 3 & 4 closed

CX486DX2

pins 1 & 2, 3 & 4 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

SL80486DX2

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

80486DX2

Open

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

P24D

pins 1 & 2, 4 & 5 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

80486DX4

pins 1 & 2 closed

pins 1 & 2 closed

pins 1 & 2, 3 & 4 closed

CPU SPEED CONFIGURATION

Speed

JP9

JP10

JP11

25MHz

Open

Open

Closed

33MHz

Closed

Closed

Closed

40MHz

Open

Closed

Closed

50iMHz

Open

Open

Closed

50MHz

Closed

Open

Open

66iMHz

Closed

Closed

Closed

75iMHz

Open

Open

Closed

100iMHz

Closed

Closed

Closed

CPU SPEED CONFIGURATION (80486DX4 ONLY)

Speed

JP29

2x

pins 2 & 3 closed

3x

Open

CPU VOLTAGE CONFIGURATION

Voltage

JP26

3.3v (from on board regulator)

pins 3 & 4 closed

3.3v (from special power supply unit)

pins 5 & 6 closed

5v (from standard power supply unit

pins 1 & 2 closed

VESA WAIT STATE CONFIGURATION

Wait states

JP27

0 wait states

Open

1 wait state

Closed

BUS SPEED CONFIGURATION

CPU speed

JP28

<= 33MHz

Open

> 33MHz

Closed

ECP MODE CONFIGURATION

Setting

JP5

JP6

DRQ1/DACK 1

pins 1 & 2 closed

pins 1 & 2 closed

DRQ3/DACK 3

pins 2 & 3 closed

pins 2 & 3 closed

HARD DRIVE TIMING CONFIGURATION

Active time

Cycle time

Speed

HDD capacity

JP37

JP38

15T

30T

1

40/50MHz

2 & 3

2 & 3

15T

19T

2

25/33MHz

1 & 2

2 & 3

9T

13T

3

<20mhz/enhanced IDE

2 & 3

1 & 2

18T

37T

0

<40mhz/non ATA support

1 & 2

1 & 2