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TWISTER LX

MICRONICS COMPUTERS, INC.

TWISTER LX

Device Type

Mainboard

Processor

Pentium II

Processor Speed

233/266/300/333MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

768MB (EDO & SDRAM supported)

Maximum Video Memory

None

Cache

256/512KB (located on Pentium II CPU)

BIOS

Award

Dimensions

254mm x 218mm

I/O Options

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

NPU Options

None

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

Reset switch

J27/pins 22 & 23

ATX power connector

ATX

Speaker

J27/pins 24 - 27

IDE interface 1

J7

CPU fan power

J28

IDE interface 2

J8

Chassis fan power

J29

Floppy drive interface

J9

Temperature sensor

J31

Parallel port

J13

Chassis intrusion connector

J32

Serial port 1

J14

SCSI interface LED

J45

Serial port 2

J15

USB connector 1

J46

Soft off power supply

J27/pins 1 & 2

USB connector 2

J47

IR connector

J27/pins 6 10

PS/2 mouse interface

J49

IDE interface LED

J27/pins 13 16

32-bit PCI slots

PC1 PC4

Power on LED

J27/pins 18 - 20

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Factory configured - do not alter

W1

Unidentified

Factory configured - do not alter

W4

Unidentified

CMOS memory normal operation

W5

Pins 1 & 2 closed

 

CMOS memory clear

W5

Pins 2 & 3 closed

DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

8MB

(1) 1M x 64

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

16MB

(1) 2M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

32MB

(1) 2M x 64

(1) 2M x 64

None

32MB

(1) 4M x 64

None

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 4M x 64

(1) 4M x 64

None

64MB

(1) 8M x 64

None

None

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

128MB

(1) 8M x 64

(1) 8M x 64

None

128MB

(1) 16M x 64

None

None

136MB

(1) 16M x 64

(1) 1M x 64

None

144MB

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

144MB

(1) 16M x 64

(1) 2M x 64

None

DIMM CONFIGURATION (CONT)

Size

Bank 0

Bank 1

Bank 2

160MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

160MB

(1) 16M x 64

(1) 4M x 64

None

192MB

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 8M x 64

(1) 8M x 64

256MB

(1) 16M x 64

(1) 16M x 64

None

256MB

(1) 32M x 64

None

None

264MB

(1) 32M x 64

(1) 1M x 64

None

272MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

272MB

(1) 32M x 64

(1) 2M x 64

None

288MB

(1) 32M x 64

(1) 2M x 64

(1) 2M x 64

288MB

(1) 32M x 64

(1) 4M x 64

None

320MB

(1) 32M x 64

(1) 4M x 64

(1) 4M x 64

320MB

(1) 32M x 64

(1) 8M x 64

None

384MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

384MB

(1) 32M x 64

(1) 16M x 64

None

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

512MB

(1) 32M x 64

(1) 32M x 64

None

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

Note: Board accepts EDO & SDRAM memory. Maximum SDRAM is 384MB. Maximum EDO is 768MB.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU.

CPU SPEED SELECTION

CPU speed

Clock speed

Multiplier

W3/

pins 1 & 2

W3/

pins 3 & 4

W3/

pins 5 & 6

W3/

pins 7 & 8

233MHz

66MHz

3.5x

Closed

Closed

Open

Open

266MHz

66MHz

4x

Closed

Open

Closed

Closed

300MHz

66MHz

4.5x

Closed

Open

Closed

Open

333MHz

66MHz

5x

Closed

Open

Open

Closed