Processor	AM K5/CXM1/Pentium
Processor Speed	75/90/100/120/133MHz
Chip Set	OPTI
Max. Onboard DRAM	128MB
Cache	256/512/1024/2048KB
BIOS	Award
Dimensions	330mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, serial ports (2), cache slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
Parallel port	CN1	Speaker	J17
IDE interface 2	CN2	Power LED & keylock	J18
IDE interface 1	CN3	32-bit PCI slots	PC1 - PC3
Serial port 1	CN4	Reset switch	S1
Serial port 2	CN5	Cache slot	SL1
Floppy drive interface	CN6

USER CONFIGURABLE SETTINGS
Function		Jumper	Position
»	Factory configured - do not alter	J24	N/A
»	Factory configured - do not alter	J26	N/A
	BIOS voltage select 12v	JP15	pins 1 & 2 closed
	BIOS voltage select 5v	JP15	pins 2 & 3 closed
»	Factory configured - do not alter	JP25	N/A
»	Factory configured - do not alter	JP26	N/A
»	Factory configured - do not alter	JP28	N/A
»	CMOS memory normal operation	JP46	Open
	CMOS memory clear	JP46	Closed
»	Factory configured - do not alter	JP47	N/A
»	Factory configured - do not alter	JP48	N/A
	IDE select primary and secondary	JP49	pins 1 & 2 closed
	IDE select primary only	JP49	pins 2 & 3 closed
	IDE interface enabled	JP55	Closed
	IDE interface disabled	JP55	Open
Note: The location of JP55 is unidentified.

DRAM CONFIGURATION
Size	Bank 0	Bank 1
2MB	(2) 256K x 36	NONE
4MB	(2) 512K x 36	NONE
4MB	(2) 256K x 36	(2) 256K x 36
6MB	(2) 512K x 36	(2) 256K x 36
6MB	(2) 256K x 36	(2) 512K x 36
8MB	(2) 1M x 36	NONE
8MB	(2) 512K x 36	(2) 512K x 36
10MB	(2) 1M x 36	(2) 256K x 36
10MB	(2) 256K x 36	(2) 1M x 36
12MB	(2) 1M x 36	(2) 512K x 36
12MB	(2) 512K x 36	(2) 1M x 36
16MB	(2) 2M x 36	NONE
16MB	(2) 1M x 36	(2) 1M x 36
18MB	(2) 2M x 36	(2) 256K x 36
18MB	(2) 256K x 36	(2) 2M x 36
20MB	(2) 2M x 36	(2) 512K x 36
20MB	(2) 512K x 36	(2) 2M x 36
24MB	(2) 2M x 36	(2) 1M x 36
24MB	(2) 1M x 36	(2) 2M x 36
32MB	(2) 4M x 36	NONE
32MB	(2) 2M x 36	(2) 2M x 36
34MB	(2) 4M x 36	(2) 256K x 36
34MB	(2) 256K x 36	(2) 4M x 36
36MB	(2) 4M x 36	(2) 512K x 36
36MB	(2) 512K x 36	(2) 4M x 36

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
40MB	(2) 4M x 36	(2) 1M x 36
40MB	(2) 1M x 36	(2) 4M x 36
48MB	(2) 4M x 36	(2) 2M x 36
48MB	(2) 2M x 36	(2) 4M x 36
64MB	(2) 8M x 36	NONE
64MB	(2) 4M x 36	(2) 4M x 36
66MB	(2) 8M x 36	(2) 256K x 36
66MB	(2) 256K x 36	(2) 8M x 36
68MB	(2) 8M x 36	(2) 512K x 36
68MB	(2) 512K x 36	(2) 8M x 36
72MB	(2) 8M x 36	(2) 1M x 36
72MB	(2) 1M x 36	(2) 8M x 36
80MB	(2) 8M x 36	(2) 2M x 36
80MB	(2) 2M x 36	(2) 8M x 36
96MB	(2) 8M x 36	(2) 4M x 36
96MB	(2) 4M x 36	(2) 8M x 36
128MB	(2) 8M x 36	(2) 8M x 36

DRAM JUMPER CONFIGURATION
Size	JP4	JP5
512KB <= 64MB	Open	Closed
512KB > 64MB	Open	Closed
256KB <= 32MB	Open	Open
256KB > 32MB	Open	Open
1MB	Closed	Closed

CACHE CONFIGURATION
Size	Bank 0	Bank 1	TAG	SL1
256KB (A)	(4) 32K x 8	(4) 32K x 8	(1) 32K x 8	Not installed
256KB (B)	NONE	NONE	(1) 32K x 8	Installed
512KB (A)	(4) 64K x 8	(4) 64K x 8	(1) 32K x 8	Not installed
512KB (B)	NONE	NONE	(1) 32K x 8	Installed
1MB (A)	(4) 128K x 8	(4) 128K x 8	(1) 32K x 8	Not installed
1MB (B)	NONE	NONE	(1) 32K x 8	Installed
2MB	NONE	NONE	(1) 32K x 8	Installed

CACHE VOLTAGE CONFIGURATION
Voltage	JP7	JP8	JP9	JP10	JP11	JP12
3.3v	Open	Open	Open	Closed	Closed	Open
5v	Closed	Closed	Closed	Open	Open	Closed

CPU SPEED CONFIGURATION
Speed	JP29	JP30	JP31	JP53	JP54
75MHz	Open	Open	Open	Open	pins 1 & 2 closed
90MHz	Closed	Closed	Open	Open	pins 1 & 2 closed
100MHz	Closed	Open	Open	Open	pins 1 & 2 closed
120MHz	Closed	Closed	Open	Open	pins 2 & 3 closed
133MHz	Closed	Open	Open	Open	pins 2 & 3 closed

MISCELLANEOUS TECHNICAL NOTE

Note: The location of pin 1 is unidentified.