TMC RESEARCH CORPORATION

AI5TT (VER. 1.0)

Processor

CX 6X86/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

256/512KB

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

ATX power connector

ATX

Turbo LED

J12/pins 8 & 18

Serial port 1

J5

Reset switch

J12/pins 9 & 19

Serial port 2

J6

IDE interface LED

J12/pins 10 & 20

Floppy drive interface

J7

Power LED & keylock

J12/pins 11 & 15

IDE interface 1

J8

PS/2 mouse interface

J16

Parallel port

J9

USB connector

JP1

IDE interface 2

J10

USB connector

JP2

IR connector

J11

External battery

JP8

Speaker

J12/pins 1 & 4

32-bit PCI slots

PC1 – PC4

Green PC connector

J12/pins 6 & 16

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP4

Unidentified

»

Battery type select internal

JP8

Pins 1 & 2 closed

 

Battery type select external

JP8

Closed

»

CMOS memory normal operation

JP11

Open

 

CMOS memory clear

JP11

Closed

»

Factory configured - do not alter

JP16

Open

DRAM 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

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

256KB

(2) 32K x 32

512KB

(2) 64K x 32

CPU SPEED SELECTION (CYRIX 6X86)

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 (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

2.5v

On

Off

On

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