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S1680S

TYAN COMPUTER CORPORATION

S1680S

Device Type

Mainboard

Processor

Pentium Pro/Pentium II

Processor Speed

150/166/180/200/233/266/300MHz

Chip Set

Intel

Video Chip Set

None

Maximum Onboard Memory

1GB (EDO supported)

Maximum Video Memory

None

Cache

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

BIOS

AMI, Award

Dimensions

330mm x 218mm

I/O Options

32-bit PCI slots (5), 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

Serial port 2

CN1

USB connector 1

J6

IDE interface 1

CN2

CPU fan power

J39

IDE interface 2

CN3

Keylock

J43

Floppy drive interface

CN4

Green PC connector

J45/pins 2 & 3

Serial port 1

CN5

IDE interface LED

J45/pins 15 & 16

Parallel port

CN6

Power LED

J45/pins 18 & 20

IR connector

CN7

Reset switch

J45/pins 22 & 23

PS/2 mouse interface

J3

Speaker

J45/pins 24 – 27

USB connector 2

J5

32-bit PCI slots

PC1 – PC5

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

J7

Unidentified

»

Factory configured - do not alter

J8

Unidentified

»

Factory configured - do not alter

J23

Unidentified

»

Factory configured - do not alter

J28

Unidentified

»

Factory configured - do not alter

J29

Unidentified

»

Factory configured - do not alter

J30

Unidentified

»

Flash BIOS voltage select 5v

J33

Pins 1 & 2 closed

 

Flash BIOS voltage select 12v

J33

Pins 2 & 3 closed

»

Factory configured - do not alter

J34

Unidentified

»

CMOS memory normal operation

J36

Open

 

CMOS memory clear

J36

Closed

»

Factory configured - do not alter

J44

Unidentified

»

Factory configured - do not alter

J46

Unidentified

»

Factory configured - do not alter

J48

Unidentified

»

Factory configured - do not alter

J49

Unidentified

»

Factory configured - do not alter

J50

Unidentified

»

Factory configured - do not alter

J51

Unidentified

Note: The location of the following jumpers are unidentified: J7, J8, J28, J29, J30, J34 & J46.

SIMM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

8MB

(2) 1M x 36

None

None

None

16MB

(2) 2M x 36

None

None

None

16MB

(2) 1M x 36

(2) 1M x 36

None

None

24MB

(2) 2M x 36

(2) 1M x 36

None

None

24MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

None

32MB

(2) 4M x 36

None

None

None

32MB

(2) 2M x 36

(2) 2M x 36

None

None

32MB

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

40MB

(2) 4M x 36

(2) 1M x 36

None

None

48MB

(2) 4M x 36

(2) 2M x 36

None

None

48MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

None

64MB

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

64MB

(2) 8M x 36

None

None

None

64MB

(2) 4M x 36

(2) 4M x 36

None

None

72MB

(2) 8M x 36

(2) 1M x 36

None

None

80MB

(2) 8M x 36

(2) 2M x 36

None

None

96MB

(2) 8M x 36

(2) 4M x 36

None

None

96MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

None

128MB

(2) 16M x 36

None

None

None

128MB

(2) 8M x 36

(2) 8M x 36

None

None

128MB

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

136MB

(2) 16M x 36

(2) 1M x 36

None

None

144MB

(2) 16M x 36

(2) 2M x 36

None

None

152MB

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

160MB

(2) 16M x 36

(2) 4M x 36

None

None

176MB

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

192MB

(2) 16M x 36

(2) 8M x 36

None

None

192MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

None

224MB

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

256MB

(2) 32M x 36

None

None

None

256MB

(2) 16M x 36

(2) 16M x 36

None

None

256MB

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

272MB

(2) 16M x 36

(2) 16M x 36

(2) 1M x 36

(2) 1M x 36

280MB

(2) 32M x 36

(2) 1M x 36

(2) 1M x 36

(2) 1M x 36

SIMM CONFIGURATION (CON’T)

Size

Bank 0

Bank 1

Bank 2

Bank 3

288MB

(2) 16M x 36

(2) 16M x 36

(2) 2M x 36

(2) 2M x 36

304MB

(2) 32M x 36

(2) 2M x 36

(2) 2M x 36

(2) 2M x 36

320MB

(2) 16M x 36

(2) 16M x 36

(2) 4M x 36

(2) 4M x 36

320MB

(2) 16M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

352MB

(2) 32M x 36

(2) 4M x 36

(2) 4M x 36

(2) 4M x 36

384MB

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

None

448MB

(2) 32M x 36

(2) 8M x 36

(2) 8M x 36

(2) 8M x 36

512MB

(2) 32M x 36

(2) 32M x 36

None

None

512MB

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

640MB

(2) 32M x 36

(2) 16M x 36

(2) 16M x 36

(2) 16M x 36

768MB

(2) 32M x 36

(2) 32M x 36

(2) 32M x 36

None

1024MB

(2) 32M x 36

(2) 32M x 36

(2) 32M x 36

(2) 32M x 36

Note: Board accepts EDO memory.

SIMM VOLTAGE CONFIGURATION

Voltage

J17

J18

J19

J20

 

3.3v

Open

Open

Open

Open

»

5v

Closed

Closed

Closed

Closed

SIMM VOLTAGE CONFIGURATION (CON’T)

Voltage

J37

J38

J40

J41

 

3.3v

Closed

Closed

Closed

Closed

»

5v

Open

Open

Open

Open

CACHE CONFIGURATION

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

CPU SPEED SELECTION (PENTIUM PRO)

CPU speed

Clock speed

Multiplier

J21

J24

J25

J26

150MHz

60MHz

2.5x

3 & 4

Open

Closed

Closed

166MHz

66MHz

2.5x

1 & 2

Open

Closed

Closed

180MHz

60MHz

3x

3 & 4

Closed

Open

Closed

200MHz

66MHz

3x

1 & 2

Closed

Open

Closed

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (PENTIUM PRO, CON’T)

CPU speed

Clock speed

Multiplier

J27

J31

J32

150MHz

60MHz

2.5x

Closed

Closed

Open

166MHz

66MHz

2.5x

Closed

Open

Closed

180MHz

60MHz

3x

Closed

Closed

Open

200MHz

66MHz

3x

Closed

Open

Closed

CPU SPEED SELECTION (PENTIUM II)

CPU speed

Clock speed

Multiplier

J21

J24

J25

J26

200MHz

66MHz

3x

1 & 2

Closed

Open

Closed

233MHz

66MHz

3.5x

1 & 2

Open

Open

Closed

266MHz

66MHz

4x

1 & 2

Closed

Closed

Open

300MHz

66MHz

4.5x

1 & 2

Open

Closed

Open

Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (PENTIUM II, CON’T)

CPU speed

Clock speed

Multiplier

J27

J31

J32

200MHz

66MHz

3x

Closed

Open

Closed

233MHz

66MHz

3.5x

Closed

Open

Closed

266MHz

66MHz

4x

Closed

Open

Closed

300MHz

66MHz

4.5x

Closed

Open

Closed