PM-7900 Motherboard Settings and Configuration

Processor	CX M1/AM K5/Pentium
Processor Speed	75/90/100/120/133/150/166/180/200MHz
Chip Set	Intel
Video Chip Set	None
Maximum Onboard Memory	128MB (EDO supported)
Maximum Video Memory	None
Cache	256/512KB
BIOS	Award
Dimensions	260mm x 220mm
I/O Options	32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, serial ports (2), cache slot, VRM connector
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Serial port 1	CN1	External battery	J7
Serial port 2	CN2	Power LED & keylock	J8
Parallel port	CN3	Speaker	J9
Floppy drive interface	CN4	Green PC connector	JP6
IDE interface 2	CN5	32-bit PCI slots	PC1 - PC3
IDE interface 1	CN6	Cache slot	SL1
IDE interface LED	J5	VRM connector	VRM
Reset switch	J6

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Battery type select internal	J7	Pins 2 & 3 closed
	Battery type select external	J7	Closed
	CMOS memory clear	J7	Pins 3 & 4 closed
	Flash BIOS voltage select 12v	JP4	Closed
	Flash BIOS voltage select 5v	JP4	Open
	Green PC mode enabled	JP6	Pins 1 & 2 closed
	Green PC mode disabled	JP6	Open

DIMM/DRAM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2
8MB	(2) 1M x 36	None	None
8MB	None	None	(1) 1M x 64
16MB	(2) 2M x 36	None	None
16MB	(2) 1M x 36	(2) 1M x 36	None
16MB	None	None	(1) 2M x 64
16MB	None	(2) 1M x 36	(1) 1M x 64
24MB	(2) 1M x 36	(2) 2M x 36	None
24MB	None	(2) 2M x 36	(1) 1M x 64
24MB	None	(2) 1M x 36	(1) 2M x 64
32MB	(2) 4M x 36	None	None
32MB	(2) 2M x 36	(2) 2M x 36	None
32MB	None	None	(1) 4M x 64
32MB	None	(2) 2M x 36	(1) 2M x 64
40MB	(2) 1M x 36	(2) 4M x 36	None
40MB	None	(2) 4M x 36	(1) 1M x 64
40MB	None	(2) 1M x 36	(1) 4M x 64
48MB	(2) 4M x 36	(2) 2M x 36	None
48MB	None	(2) 4M x 36	(1) 2M x 64
48MB	None	(2) 2M x 36	(1) 4M x 64
64MB	(2) 8M x 36	None	None
64MB	(2) 4M x 36	(2) 4M x 36	None

DIMM/DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1	Bank 2
64MB	None	None	(1) 8M x 64
64MB	None	(2) 4M x 36	(1) 4M x 64
72MB	(2) 8M x 36	(2) 1M x 36	None
72MB	None	(2) 8M x 36	(1) 1M x 64
72MB	None	(2) 1M x 36	(1) 8M x 64
80MB	(2) 2M x 36	(2) 8M x 36	None
80MB	None	(2) 8M x 36	(1) 2M x 64
80MB	None	(2) 2M x 36	(1) 8M x 64
96MB	(2) 8M x 36	(2) 4M x 36	None
96MB	None	(2) 8M x 36	(1) 4M x 64
96MB	None	(2) 4M x 36	(1) 8M x 64
128MB	(2) 8M x 36	(2) 8M x 36	None
128MB	None	(2) 8M x 36	(1) 8M x 64
Note: Board accepts EDO memory.

DIMM VOLTAGE CONFIGURATION
Voltage	JP7	JP8	JP9
3.3v	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
5v	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed

CACHE CONFIGURATION
Size	SL1	TAG
256KB	256KB module installed	(1) 8K/16K/32K x 8
512KB	512KB module installed	(1) 16K/32K x 8

CPU SPEED SELECTION (CYRIX)
CPU speed	Clock speed	Multiplier	JP5	JP10	JP11	JP12	JP13
100MHz	50MHz	2x	2 & 3	Closed	Closed	Closed	Open
120MHz	60MHz	2x	1 & 2	Open	Closed	Closed	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (AMD)
CPU speed	Clock speed	Multiplier	JP5	JP10	JP11	JP12	JP13
100MHz	66MHz	1.5x	1 & 2	Closed	Open	Open	Open
Note: Pins designated should be in the closed position.

CPU SPEED SELECTION (INTEL)
CPU speed	Clock speed	Multiplier	JP5	JP10	JP11	JP12	JP13
75MHz	50MHz	1.5x	2 & 3	Closed	Closed	Open	Open
90MHz	60MHz	1.5x	1 & 2	Open	Closed	Open	Open
100MHz	66MHz	1.5x	1 & 2	Closed	Open	Open	Open
120MHz	60MHz	2x	1 & 2	Open	Closed	Closed	Open
133MHz	66MHz	2x	1 & 2	Closed	Open	Closed	Open
150MHz	60MHz	2.5x	1 & 2	Open	Closed	Closed	Closed
166MHz	66MHz	2.5x	1 & 2	Closed	Open	Closed	Closed
180MHz	60MHz	3x	1 & 2	Open	Closed	Open	Closed
200MHz	66MHz	3x	1 & 2	Closed	Open	Open	Closed
Note: Pins designated should be in the closed position.

CPU VOLTAGE SELECTION
Voltage		JP14
	3.3v	Pins 2 & 3 closed
»	3.5v	Pins 1 & 2 closed