S1894SLA (ZX) Motherboard Settings and Configuration

Device Type	Mainboard
Processor	Pentium II/Celeron
Processor Speed	233/266/300/333/350/400/450MHz
Chip Set	Intel 440ZX
Maximum Onboard Memory	256MB (SDRAM supported)
Audio Chip Set	Ensoniq
Cache	0/128/256/512KB (located on the CPU)
BIOS	Award
Dimensions	305mm x 244mm
I/O Options	32-bit PCI slots (3), floppy drive interface, game/MIDI port, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), IR connector, USB connectors (2), ATX power connector, AGP slot, line in, line out, microphone in, audio in – CD-ROMs (2), wake on LAN connector

CONNECTIONS
Purpose	Location	Purpose	Location
AGP slot	AGP	IDE interface 2	CN11
ATX power connector	ATX	IDE interface 1	CN12
Chassis fan power	C1	Floppy drive interface	CN13
Chassis fan power	C2	Wake on LAN connector	CON3
Chassis fan power	C3	Chassis intrusion	J7
Game/MIDI port	CN1	IDE interface LED	J10/pins 1 -3
Microphone in	CN2	Power LED	J10/pins 2 & 4
Line in	CN3	Reset switch	J10/pins 5 & 7 or 7 & 8
Line out	CN4	Soft off power supply	J10/pins 6 & 8, 5 & 6
Serial port 2	CN5	Audio in – CD-ROM	J11
Serial port 1	CN6	Audio in – CD-ROM	J13
Parallel port	CN7	Speaker	J16
USB connector 1	CN8	Green PC connector	JP16
USB connector 2	CN9	Power fan power	JP23
PS/2 mouse port	CN10	32-bit PCI slots	PC1 – PC3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	CMOS memory normal operation	JP2	Pins 1 & 2 closed
	CMOS memory clear	JP2	Pins 2 & 3 closed
	On board sound enabled	JP17	Open
	On board sound disabled	JP17	Closed
»	Factory configured - do not alter	JP22	Unidentified

DIMM CONFIGURATION
Size	Bank 0	Bank 1
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64
128MB	(1) 16M x 64	None

DIMM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64
Note: Board accepts SDRAM memory.

CACHE CONFIGURATION

Note: 256KB/512KB cache is located on the Pentium II CPU. 128KB cache is located on the Celeron 300A & 333 CPU.

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	JP10	JP11	JP12	JP13
233MHz	66MHz	3.5x	Closed	Open	Open	Closed
266MHz	66MHz	4x	Open	Closed	Closed	Closed
300MHz	66MHz	4.5x	Open	Closed	Open	Closed
333MHz	66MHz	5x	Open	Open	Closed	Closed
350MHz	100MHz	3.5x	Closed	Open	Open	Closed
400MHz	100MHz	4x	Open	Closed	Closed	Closed
450MHz	100MHz	4.5x	Open	Closed	Open	Closed