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.