SUPER MICRO

S2DG2 (REV. 1.3)

Device Type

Mainboard

Processor

Pentium II

Processor Speed

400/450MHz

Chip Set

Intel 440GX

Maximum Onboard Memory

2GB (SDRAM supported)

Cache

256/512KB (located on the Pentium II CPU)

BIOS

AMI

Dimensions

305mm x 270mm

I/O Options

32-bit PCI slots (5), floppy drive interface, green PC connector, IDE interfaces (2), SCSI-2 interface, Wide Ultra SCSI interface, Ultra SCSI interface, parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot, RAID slot

 

CONNECTIONS

Purpose

Location

Purpose

Location

AGP slot

AGP

IDE interface LED

JF1/pins 1 - 4

ATX power connector

ATX

Power LED & keylock

JF1/pins 5 - 9

ATX power connector

ATX2

Speaker connector

JF1/10 - 13

SB-link connector

CN1

IR connector

JF2/pins 1 - 8

IDE interface 1

J15

Soft off power supply

JF2/pins 9 & 10

IDE interface 2

J16

Reset switch

JF2/pins 12 & 13

USB connector 1

J17

Chassis intrusion connector

JL1

USB connector 2

J18

Overheat LED

JOH

Parallel port

J19

Chassis fan power

JT1

Serial port 1

J20

Chassis fan power

JT1A

Serial port 2

J21

Chassis fan power

JT2

Floppy drive interface

J22

Chassis fan power

JT2A

PS/2 mouse and KB port

J34

Chassis fan power

JT3

5v auxiliary power

J36

Chassis fan power

JT3A

Ultra II SCSI interface

JA1

32-bit PCI slots

PC1 - PC5

Ultra Wide SCSI interface

JA2

RAID slot

SL1

SCSI interface

JA4

SCSI interface LED

SLED

External battery

JBT2

Wake on LAN connector

WOL


USER CONFIGURABLE SETTINGS

Function

Label

Position

 

Overheat buzzer disabled

BZON

Open

 

Overheat buzzer enabled

BZON

Closed

»

CMOS memory normal operation

JBT1

Pins 1 & 2 closed

 

CMOS memory clear

JBT1

Pins 2 & 3 closed

»

Factory configured - do not alter

JL2

Unidentified

»

Factory configured - do not alter

JP16

Unidentified

»

Factory configured - do not alter

JP18

Unidentified

»

BIOS CTL PD state

JP20

Pins 2 & 3 closed

 

PIIX CTL PD state

JP20

Pins 1 & 2 closed

»

Factory configured - do not alter

JPR1

Unidentified

»

Factory configured - do not alter

JPWP

Unidentified

Factory configured - do not alter

JTM

Unidentified

 

SCSI termination enabled

STE

Closed

 

SCSI termination disabled

STE

Open


DIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(1) 1M x 64

None

None

None

16MB

(1) 2M x 64

None

None

None

16MB

(1) 1M x 64

(1) 1M x 64

None

None

24MB

(1) 2M x 64

(1) 1M x 64

None

None

24MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

None

32MB

(1) 4M x 64

None

None

None

32MB

(1) 2M x 64

(1) 2M x 64

None

None

32MB

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

40MB

(1) 4M x 64

(1) 1M x 64

None

None

48MB

(1) 4M x 64

(1) 2M x 64

None

None

48MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

None

64MB

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

64MB

(1) 8M x 64

None

None

None

64MB

(1) 4M x 64

(1) 4M x 64

None

None

72MB

(1) 8M x 64

(1) 1M x 64

None

None

80MB

(1) 8M x 64

(1) 2M x 64

None

None

96MB

(1) 8M x 64

(1) 4M x 64

None

None

96MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

None

128MB

(1) 16M x 64

None

None

None

128MB

(1) 8M x 64

(1) 8M x 64

None

None

128MB

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

(1) 4M x 64

136MB

(1) 16M x 64

(1) 1M x 64

None

None

144MB

(1) 16M x 64

(1) 2M x 64

None

None

176MB

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

(1) 2M x 64

192MB

(1) 16M x 64

(1) 8M x 64

None

None

192MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

None

256MB

(1) 32M x 64

None

None

None

256MB

(1) 16M x 64

(1) 16M x 64

None

None

256MB

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

272MB

(1) 16M x 64

(1) 16M x 64

(1) 1M x 64

(1) 1M x 64

280MB

(1) 32M x 64

(1) 1M x 64

(1) 1M x 64

(1) 1M x 64

288MB

(1) 16M x 64

(1) 16M x 64

(1) 2M x 64

(1) 2M x 64

320MB

(1) 16M x 64

(1) 16M x 64

(1) 4M x 64

(1) 4M x 64

384MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

None


DIMM CONFIGURATION (CON'T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

448MB

(1) 32M x 64

(1) 8M x 64

(1) 8M x 64

(1) 8M x 64

512MB

(1) 64M x 64

None

None

None

512MB

(1) 32M x 64

(1) 32M x 64

None

None

512MB

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

640MB

(1) 32M x 64

(1) 16M x 64

(1) 16M x 64

(1) 16M x 64

768MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

None

1024MB

(1) 64M x 64

(1) 64M x 64

None

None

1024MB

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

(1) 32M x 64

1536MB

(1) 64M x 64

(1) 64M x 64

(1) 64M x 64

None

2048MB

(1) 64M x 64

(1) 64M x 64

(1) 64M x 64

(1) 64M x 64

Note: Board accepts SDRAM memory.


CACHE CONFIGURATION

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


CPU SPEED SELECTION

Multiplier

JB1

JB2

JB3

JB4

3x

Open

Closed

Open

Open

3.5x

Closed

Closed

Open

Open

4x

Closed

Closed

Open

Closed

4.5x

Open

Closed

Open

Closed

5x

Closed

Open

Open

Closed

5.5x

Open

Open

Open

Closed

6x

Closed

Closed

Closed

Open


CPU CLOCK SPEED SELECTION

Clock speed

JP11

66MHz

Pins 2 & 3 closed

100MHz

Pins 1 & 2 closed


SCSI TERMINATION SELECTION

Setting

JA5

JA6

JA7

»

Enabled

Closed

Closed

Closed

 

Disabled

Open

Open

Open

Note: JA5 is for JA1. JA6 is for JA3. JA7 is for JA2