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ATC-2000

A-TREND TECHNOLOGY CORPORATION

ATC-2000

Processor

CX M1/AM K5/Pentium

Processor Speed

75/90/100/120/133/150/166/180/200MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

256/512KB

BIOS

Award

Dimensions

280mm x 220mm

I/O Options

32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), cache slot, IR connector, USB connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

Serial port 2

CN1

Reset switch

J1 pins 1 & 2

Serial port 1

CN2

Green PC connector

J1 pins 4 & 5

Parallel port

CN3

Turbo LED

J1 pins 7 & 8

Floppy drive interface

CN4

IDE interface LED

J1 pins 10 & 11

IDE interface 1

CN5

Speaker

J1 pins 12 - 15

IDE interface 2

CN6

Power LED & keylock

J1 pins 17 - 21

PS/2 mouse port

CN7

32-bit PCI slots

PC1 PC4

Chassis fan power

FAN

Cache slot

SL1

IR connector

IR

USB connector

USB

USER CONFIGURABLE SETTINGS

Function

Label

Position

CMOS memory normal operation

JP5

Open

 

CMOS memory clear

JP5

Closed

 

Flash BIOS voltage select 12v

JP14

Pins 1 & 2 closed

 

Flash BIOS voltage select 5v

JP14

Pins 2 & 3 closed

DRAM CONFIGURATION

Size

Bank 0

Bank 1

4MB

(2) 512K x 36

None

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

80MB

(2) 8M x 36

(2) 2M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 8M x 36

(2) 8M x 36

128MB

(2) 16M x 36

None

136MB

(2) 16M x 36

(2) 1M x 36

144MB

(2) 16M x 36

(2) 2M x 36

160MB

(2) 16M x 36

(2) 4M x 36

192MB

(2) 16M x 36

(2) 8M x 36

256MB

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory. Banks are interchangeable.

CACHE CONFIGURATION

Size

Bank 0

Bank 1

TAG

256KB

None

256KB module installed

(1) 16K/32K x 8

256KB

(2) 32K x 32

Not installed

(1) 16K/32K x 8

512KB

(2) 64K x 32

Not installed

(1) 16K/32K x 8

CACHE TAG CONFIGURATION

Setting

JP1

Enabled

Closed

Disabled

Open

CPU SPEED SELECTION (CYRIX)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

JP8

120MHz

50MHz

2x

2 & 3

1 & 2

Open

Closed

Closed

133MHz

55MHz

2x

2 & 3

1 & 2

N/A

Open

Open

150MHz

60MHz

2x

2 & 3

1 & 2

Closed

Open

Closed

166MHz

66MHz

2x

2 & 3

1 & 2

Closed

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

JP8

75MHz

50MHz

1.5x

1 & 2

1 & 2

Open

Closed

Closed

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Closed

100MHz

66MHz

1.5x

1 & 2

1 & 2

Closed

Closed

Open

120MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Closed

133MHz

66MHz

1.5x

1 & 2

1 & 2

Closed

Closed

Open

150MHz

60MHz

2x

2 & 3

1 & 2

Closed

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

JP3

JP4

JP6

JP7

JP8

75MHz

50MHz

1.5x

1 & 2

1 & 2

Open

Closed

Closed

90MHz

60MHz

1.5x

1 & 2

1 & 2

Closed

Open

Closed

100MHz

66MHz

1.5x

1 & 2

1 & 2

Closed

Closed

Open

120MHz

60MHz

2x

2 & 3

1 & 2

Closed

Open

Closed

133MHz

66MHz

2x

2 & 3

1 & 2

Closed

Closed

Open

150MHz

60MHz

2.5x

2 & 3

2 & 3

Closed

Open

Closed

166MHz

66MHz

2.5x

2 & 3

2 & 3

Closed

Closed

Open

180MHz

60MHz

3x

1 & 2

2 & 3

Closed

Open

Closed

200MHz

66MHz

3x

1 & 2

2 & 3

Closed

Closed

Open

Note: Pins designated should be in the closed position.

CPU TYPE SELECTION

Type

JP9

JP10

JP11

CX6X86

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

AM K5

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

P54C STD

Pins 3 & 4 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

P54C VRE

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

CPU VOLTAGE SELECTION (P55C ONLY)

Voltage

V core

JP9

JP10

JP11

JP12

JP13

3.3v

2.7v

9 & 10

2 & 3

2 & 3

Closed

Open

3.3v

2.8v

7 & 8

2 & 3

2 & 3

Closed

Open

3.3v

2.9v

5 & 6

2 & 3

2 & 3

Closed

Open

3.3v

3.3v

3 & 4

2 & 3

2 & 3

Closed

Open

3.3v

3.52v

1 & 2

2 & 3

2 & 3

Closed

Open

Note: Pins designated should be in the closed position.