S1668 (REV. 1.1) Motherboard Settings and Configuration

TYAN COMPUTER CORPORATION

S1668 (REV. 1.1)

Processor
Pentium Pro
Processor Speed
150/166/180/200MHz
Chip Set
Intel
Video Chip Set
None
Maximum Onboard Memory
1GB (BEDO/EDO supported)
Maximum Video Memory
None
Cache
256/512KB (on Pentium Pro CPU)
BIOS
AMI/Award
Dimensions
330mm x 218mm
I/O Options
32-bit PCI slots (5), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connectors (2), VRM connectors (2), USB connectors (2)
NPU Options
None

CONNECTIONS
Purpose
Location
Purpose
Location
Serial port 1
CN1
USB connector 2
J25
Parallel port
CN2
Turbo LED
J42
PS/2 mouse port
CN3
Speaker
J43
Serial port 2
CN4
Power LED & keylock
J44
IDE interface 2
CN5
Reset switch
J45
IDE interface 1
CN6
IDE interface LED
J46
Floppy drive interface
CN7
Turbo switch
J47
IR connector
CON4
32-bit PCI slots
PC1 - PC5
IR connector
CON5
VRM connector
VRM0
USB connector 1
J18
VRM connector
VRM1

USER CONFIGURABLE SETTINGS
Function
Label
Position

Jumper information unavailable
J1
Unidentified

SMC I/O chip type select 665IR
J26
Pins 1 & 2 closed

SMC I/O chip type select 669IR
J26
Pins 2 & 3 closed

Jumper information unavailable
J30
Unidentified
»
Factory configured - do not alter
J31
Open
»
Flash BIOS voltage select 5v
J32
Pins 1 & 2 closed

Flash BIOS voltage select 12v
J32
Pins 2 & 3 closed
»
CMOS memory normal operation
J41
Open

CMOS memory clear
J41
Closed
»
Factory configured - do not alter
J48
Open
»
Factory configured - do not alter
J49
Open

DRAM CONFIGURATION
Size
Bank 0
Bank 1
Bank 2
Bank 3
8MB
(2) 1M x 32
None
None
None
16MB
(2) 2M x 32
None
None
None
16MB
(2) 1M x 32
(2) 1M x 32
None
None
32MB
(2) 2M x 32
(2) 2M x 32
None
None
32MB
(2) 1M x 32
(2) 1M x 32
(2) 1M x 32
(2) 1M x 32
32MB
(2) 4M x 32
None
None
None
64MB
(2) 4M x 32
(2) 4M x 32
None
None
64MB
(2) 8M x 32
None
None
None
128MB
(2) 16M x 32
None
None
None
128MB
(2) 4M x 32
(2) 4M x 32
(2) 4M x 32
(2) 4M x 32
128MB
(2) 8M x 32
(2) 8M x 32
None
None
192MB
(2) 8M x 32
(2) 8M x 32
(2) 8M x 32
None
256MB
(2) 8M x 32
(2) 8M x 32
(2) 8M x 32
(2) 8M x 32
256MB
(2) 16M x 32
(2) 16M x 32
None
None
256MB
(2) 32M x 32
None
None
None

DRAM CONFIGURATION (CON’T)
Size
Bank 0
Bank 1
Bank 2
Bank 3
384MB
(2) 16M x 32
(2) 16M x 32
(2) 16M x 32
None
512MB
(2) 16M x 32
(2) 16M x 32
(2) 16M x 32
(2) 16M x 32
512MB
(2) 32M x 32
(2) 32M x 32
None
None
640MB
(2) 32M x 32
(2) 16M x 32
(2) 16M x 32
(2) 16M x 32
768MB
(2) 32M x 32
(2) 32M x 32
(2) 32M x 32
None
768MB
(2) 32M x 32
(2) 32M x 32
(2) 16M x 32
(2) 16M x 32
832MB
(2) 32M x 32
(2) 32M x 32
(2) 32M x 32
(2) 8M x 32
896MB
(2) 32M x 32
(2) 32M x 32
(2) 32M x 32
(2) 16M x 32
1024MB
(2) 32M x 32
(2) 32M x 32
(2) 32M x 32
(2) 32M x 32
Note: Board accepts BEDO/EDO memory. Board also accepts x 36 SIMMs.

DRAM VOLTAGE SELECTION
Voltage
J2
J3
J4
J5
J14
J15
J16
J17

3.3v
Closed
Closed
Open
Open
Closed
Closed
Open
Open
»
5v
Open
Open
Closed
Closed
Open
Open
Closed
Closed

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

CPU SPEED SELECTION
CPU speed
J11
J12
J21
J22
J23
J24
J27
150MHz
Closed
Open
Open
Closed
Closed
Closed
3 & 4
166MHz
Open
Closed
Open
Closed
Closed
Closed
1 & 2
180MHz
Closed
Open
Closed
Open
Closed
Closed
3 & 4
200MHz
Open
Closed
Closed
Open
Closed
Closed
1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage
C3
C4
»
Auto select
Open
Open

2.1v
1 & 5
1 & 5

2.2v
2 & 6
2 & 6

2.3v
1 & 5, 2 & 6
1 & 5, 2 & 6

2.4v
3 & 7
3 & 7

2.5v
1 & 5, 3 & 7
1 & 5, 3 & 7

2.6v
2 & 6, 3 & 7
2 & 6, 3 & 7

2.7v
1 & 5, 2 & 6, 3 & 7
1 & 5, 2 & 6, 3 & 7

2.8v
4 & 8
4 & 8

2.9v
1 & 5, 4 & 8
1 & 5, 4 & 8

3.0v
2 & 6, 4 & 8
2 & 6, 4 & 8

3.1v
1 & 5, 2 & 6, 4 & 8
1 & 5, 2 & 6, 4 & 8

3.2v
3 & 7, 4 & 8
3 & 7, 4 & 8

3.3v
1 & 5, 3 & 7, 4 & 8
1 & 5, 3 & 7, 4 & 8

3.4v
2 & 6, 3 & 7, 4 & 8
2 & 6, 3 & 7, 4 & 8

3.5v
1 & 5, 2 & 6, 3 & 7, 4 & 8
1 & 5, 2 & 6, 3 & 7, 4 & 8
Note: Pins designated should be in the closed position.

SERIAL PORT SELECTION
Setting
J28
J29
»
Used and COM 1 or 2
Pins 1 & 2 closed
Pins 1 & 2 closed

Used as IR connector
Pins 2 & 3 closed
Pins 2 & 3 closed

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S1668 (REV. 1.1) Motherboard Settings and Configuration

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Processor	Pentium Pro
Processor Speed	150/166/180/200MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	1GB (BEDO/EDO supported)
Maximum Video Memory	None
Cache	256/512KB (on Pentium Pro CPU)
BIOS	AMI/Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (5), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connectors (2), VRM connectors (2), USB connectors (2)
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN1	USB connector 2	J25
Parallel port	CN2	Turbo LED	J42
PS/2 mouse port	CN3	Speaker	J43
Serial port 2	CN4	Power LED & keylock	J44
IDE interface 2	CN5	Reset switch	J45
IDE interface 1	CN6	IDE interface LED	J46
Floppy drive interface	CN7	Turbo switch	J47
IR connector	CON4	32-bit PCI slots	PC1 - PC5
IR connector	CON5	VRM connector	VRM0
USB connector 1	J18	VRM connector	VRM1

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Jumper information unavailable	J1	Unidentified
	SMC I/O chip type select 665IR	J26	Pins 1 & 2 closed
	SMC I/O chip type select 669IR	J26	Pins 2 & 3 closed
	Jumper information unavailable	J30	Unidentified
»	Factory configured - do not alter	J31	Open
»	Flash BIOS voltage select 5v	J32	Pins 1 & 2 closed
	Flash BIOS voltage select 12v	J32	Pins 2 & 3 closed
»	CMOS memory normal operation	J41	Open
	CMOS memory clear	J41	Closed
»	Factory configured - do not alter	J48	Open
»	Factory configured - do not alter	J49	Open

DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
8MB	(2) 1M x 32	None	None	None
16MB	(2) 2M x 32	None	None	None
16MB	(2) 1M x 32	(2) 1M x 32	None	None
32MB	(2) 2M x 32	(2) 2M x 32	None	None
32MB	(2) 1M x 32	(2) 1M x 32	(2) 1M x 32	(2) 1M x 32
32MB	(2) 4M x 32	None	None	None
64MB	(2) 4M x 32	(2) 4M x 32	None	None
64MB	(2) 8M x 32	None	None	None
128MB	(2) 16M x 32	None	None	None
128MB	(2) 4M x 32	(2) 4M x 32	(2) 4M x 32	(2) 4M x 32
128MB	(2) 8M x 32	(2) 8M x 32	None	None
192MB	(2) 8M x 32	(2) 8M x 32	(2) 8M x 32	None
256MB	(2) 8M x 32	(2) 8M x 32	(2) 8M x 32	(2) 8M x 32
256MB	(2) 16M x 32	(2) 16M x 32	None	None
256MB	(2) 32M x 32	None	None	None

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2	Bank 3
384MB	(2) 16M x 32	(2) 16M x 32	(2) 16M x 32	None
512MB	(2) 16M x 32	(2) 16M x 32	(2) 16M x 32	(2) 16M x 32
512MB	(2) 32M x 32	(2) 32M x 32	None	None
640MB	(2) 32M x 32	(2) 16M x 32	(2) 16M x 32	(2) 16M x 32
768MB	(2) 32M x 32	(2) 32M x 32	(2) 32M x 32	None
768MB	(2) 32M x 32	(2) 32M x 32	(2) 16M x 32	(2) 16M x 32
832MB	(2) 32M x 32	(2) 32M x 32	(2) 32M x 32	(2) 8M x 32
896MB	(2) 32M x 32	(2) 32M x 32	(2) 32M x 32	(2) 16M x 32
1024MB	(2) 32M x 32	(2) 32M x 32	(2) 32M x 32	(2) 32M x 32
Note: Board accepts BEDO/EDO memory. Board also accepts x 36 SIMMs.

DRAM VOLTAGE SELECTION
Voltage		J2	J3	J4	J5	J14	J15	J16	J17
	3.3v	Closed	Closed	Open	Open	Closed	Closed	Open	Open
»	5v	Open	Open	Closed	Closed	Open	Open	Closed	Closed

CPU SPEED SELECTION
CPU speed	J11	J12	J21	J22	J23	J24	J27
150MHz	Closed	Open	Open	Closed	Closed	Closed	3 & 4
166MHz	Open	Closed	Open	Closed	Closed	Closed	1 & 2
180MHz	Closed	Open	Closed	Open	Closed	Closed	3 & 4
200MHz	Open	Closed	Closed	Open	Closed	Closed	1 & 2
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		C3	C4
»	Auto select	Open	Open
	2.1v	1 & 5	1 & 5
	2.2v	2 & 6	2 & 6
	2.3v	1 & 5, 2 & 6	1 & 5, 2 & 6
	2.4v	3 & 7	3 & 7
	2.5v	1 & 5, 3 & 7	1 & 5, 3 & 7
	2.6v	2 & 6, 3 & 7	2 & 6, 3 & 7
	2.7v	1 & 5, 2 & 6, 3 & 7	1 & 5, 2 & 6, 3 & 7
	2.8v	4 & 8	4 & 8
	2.9v	1 & 5, 4 & 8	1 & 5, 4 & 8
	3.0v	2 & 6, 4 & 8	2 & 6, 4 & 8
	3.1v	1 & 5, 2 & 6, 4 & 8	1 & 5, 2 & 6, 4 & 8
	3.2v	3 & 7, 4 & 8	3 & 7, 4 & 8
	3.3v	1 & 5, 3 & 7, 4 & 8	1 & 5, 3 & 7, 4 & 8
	3.4v	2 & 6, 3 & 7, 4 & 8	2 & 6, 3 & 7, 4 & 8
	3.5v	1 & 5, 2 & 6, 3 & 7, 4 & 8	1 & 5, 2 & 6, 3 & 7, 4 & 8
Note: Pins designated should be in the closed position.

SERIAL PORT SELECTION
Setting		J28	J29
»	Used and COM 1 or 2	Pins 1 & 2 closed	Pins 1 & 2 closed
	Used as IR connector	Pins 2 & 3 closed	Pins 2 & 3 closed