TMC RESEARCH CORPORATION

AI5TT (VER. 1.1)

Processor

CX 6X86L/CX 686MX/AM K5/AM K6/Pentium

Processor Speed

90/100/120/133/150/166/200/233MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

512KB

BIOS

Unidentified

Dimensions

254mm x 218mm

I/O Options

32-bit PCI slots (4), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Chassis fan power

J17

USB connector

J6

CPU fan power

J18

USB connector

J7

IR connector

J19

PS/2 mouse port

J8

Speaker

J20/pins 1 - 4

Serial port 1

J9

Green PC connector

J20/pins 6 & 16

Serial port 2

J10

Turbo LED

J20/pins 8 & 18

Floppy drive interface

J11

Reset switch

J20/pins 9 & 19

IDE interface 1

J12

IDE interface LED

J20/pins 10 & 20

Parallel port

J13

Power LED & keylock

J20/pins 11 - 15

IDE interface 2

J14

32-bit PCI slots

PC1 – PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Battery type select internal

J15

Pins 3 & 4 closed

 

Battery type select external

J15

Open

»

Factory configured - do not alter

JP16

Unidentified

»

CMOS memory normal operation

JP19

Open

 

CMOS memory clear

JP19

Pins 2 & 3 closed

SIMM CONFIGURATION

Size

Bank 0

Bank 1

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.

DIMM CONFIGURATION

Size

Bank 2

Bank 3

8MB

(1) 1M x 64

None

16MB

(1) 2M x 64

None

16MB

(1) 1M x 64

(1) 1M x 64

24MB

(1) 2M x 64

(1) 1M x 64

32MB

(1) 4M x 64

None

32MB

(1) 2M x 64

(1) 2M x 64

40MB

(1) 4M x 64

(1) 1M x 64

48MB

(1) 4M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

64MB

(1) 4M x 64

(1) 4M x 64

72MB

(1) 8M x 64

(1) 1M x 64

80MB

(1) 8M x 64

(1) 2M x 64

96MB

(1) 8M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

CACHE CONFIGURATION

Size

Bank 0

512KB

(1) 64K x 64

CPU SPEED SELECTION (CX 6X86L)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

150MHz

60MHz

2x

On

On

On

Off

166MHz

66MHz

2x

Off

Off

On

Off

CPU SPEED SELECTION (CX 6X86MX)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

166MHz

60MHz

2.5x

On

On

On

On

200MHz

66MHz

2.5x

Off

Off

On

On

233MHz

66MHz

3x

Off

Off

Off

On

CPU SPEED SELECTION (AM K5)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

100MHz

66MHz

1.5x

Off

Off

Off

Off

133MHz

66MHz

1.5x

Off

Off

On

Off

166MHz

66MHz

1.75x

Off

Off

On

On

CPU SPEED SELECTION (AM K6)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

166MHz

66MHz

1.75x

Off

Off

On

On

200MHz

66MHz

3x

Off

Off

Off

On

233MHz

66MHz

3.5x

Off

Off

Off

Off

CPU SPEED SELECTION (INTEL)

CPU speed

Clock speed

Multiplier

SW1/1

SW1/2

SW1/3

SW1/4

90MHz

60MHz

1.5x

On

On

Off

Off

100MHz

66MHz

1.5x

Off

Off

Off

Off

120MHz

60MHz

2x

On

On

On

Off

133MHz

66MHz

2x

Off

Off

On

Off

150MHz

60MHz

2.5x

On

On

On

On

166MHz

66MHz

2.5x

Off

Off

On

On

200MHz

66MHz

3x

Off

Off

Off

On

233MHz

66MHz

3.5x

Off

Off

Off

Off

CPU VOLTAGE SELECTION (SINGLE)

Voltage

SW1/5

SW1/6

SW1/7

SW1/8

3.5v

On

On

On

On

CPU VOLTAGE SELECTION (DUAL)

Voltage

V core

SW1/5

SW1/6

SW1/7

SW1/8

3.3v

2.1v

On

Off

Off

Off

3.3v

2.6v

Off

On

On

Off

3.3v

2.7v

On

On

On

Off

3.3v

2.8v

Off

Off

Off

On

3.3v

2.9v

On

Off

Off

On

3.3v

3.0v

Off

On

Off

On

3.3v

3.2v

Off

Off

On

On

3.3v

3.5v

On

On

On

On