AMERICAN MEGATRENDS, INC.

TITAN III

Processor

Pentium

Processor Speed

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

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

256MB (EDO supported)

Maximum Video Memory

None

Cache

512KB

BIOS

AMI

Dimensions

330mm 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)

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

IDE interface LED

J22

Serial port 2

P3

Reset switch

J24

Serial port 1

P4

Chassis fan power

J25

Floppy drive interface

P11

Green PC connector

J26

Parallel port

P12

Chassis fan power

J27

PS/2 mouse interface

P13

Turbo LED

J29

Power LED & keylock

P17

IDE interface 1

P1

Speaker

P24

IDE interface 2

P2

32-bit PCI slots

PCI - PC4

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J5

Unidentified

»

Factory configured - do not alter

J11

Unidentified

»

Parallel port IRQ select IRQ7

J14

Pins 1 & 2 closed

 

Parallel port IRQ select IRQ5

J14

Pins 2 & 3 closed

»

Factory configured - do not alter

J17

Pins 2 & 3 closed

 

APIC enabled with two CPUs installed

J19

Pins 1 & 2 closed

 

APIC disabled with one CPU installed

J19

Pins 2 & 3 closed

»

Factory configured - do not alter

J20

Unidentified

 

PS/2 mouse IRQ 12 enabled

J23

Closed

 

PS/2 mouse IRQ 12 disabled

J23

Open

»

CMOS memory normal operation

J28

Open

 

CMOS memory clear

J28

Closed

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) 2M x 36

(2) 4M 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) 2M x 36

(2) 8M x 36

96MB

(2) 8M x 36

(2) 4M x 36

128MB

(2) 16M x 36

None

128MB

(2) 8M x 36

(2) 8M x 36

136MB

(2) 16M x 36

(2) 1M x 36

DRAM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

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) 32M x 36

None

256MB

(2) 16M x 36

(2) 16M x 36

Note: Board accepts EDO memory. Board also accepts x 32 SIMMs. Do not use 16M x 36 SIMMs that have 36 chips.

CACHE CONFIGURATION

Note: 512KB cache is factory installed and is not configurable.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

J6

J7

J8

J13

J15

90MHz

60MHz

1.5x

Closed

Open

Open

Open

Closed

100MHz

66MHz

1.5x

Open

Open

Closed

Open

Open

120MHz

60MHz

2x

Closed

Open

Open

Closed

Closed

133MHz

66MHz

2x

Open

Open

Closed

Closed

Open

150MHz

60MHz

2.5x

Closed

Closed

Open

Closed

Closed

166MHz

66MHz

2.5x

Open

Closed

Closed

Closed

Open

CPU VOLTAGE SELECTION

Voltage

J1

J2

J3

J18

Regulator

Open

1 & 2, 3 & 4, 5 & 6

1 & 2, 3 & 4, 5 & 6

Open

3.3v power

1 & 2, 3 & 4, 5 & 6

Open

Open

1 & 2, 3 & 4, 5 & 6

Note: Pins designated should be in the closed position.

DMA CHANNEL SELECTION

Channel

J16

J21

»

None

Open

Open

 

1

Pins 1 & 2 closed

Pins 1 & 2 closed

 

3

Pins 2 & 3 closed

Pins 2 & 3 closed

IDE BUS MASTER SELECTION

Setting

J4

J30

Enabled

Closed

Closed

Disabled

Open

Open