Device Type	Mainboard
Processor	Pentium
Processor Speed	120/150MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	256MB
Maximum Video Memory	1MB
Cache	256/512KB
BIOS	Unidentified
Dimensions	305mm x 244mm
I/O Options	PCI slots (3), SCSI interface, Wide SCSI interface, serial port, riser slot, cache slot

CONNECTIONS
Purpose	Location	Purpose	Location
Wide SCSI interface	CN1	Chassis fan power	JP6
SCSI interface	CN2	HD - IN/OUT	JP5
Floppy drive interface	CN3	HD - IN	JP7
Proprietary Zenith front panel connector	CN4	Chassi switch	JP8
Serial port 2	J601	Hard Drive LED	JP9
Speaker	JP1	CPU fan power	JP10
Reset switch	JP2	32-bit PCI slots	PC1 - PC3
Power LED	JP3	Cache slot	SL1
Keylock	JP4	Riser slot	SL2

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Factory configured - do not alter	J106	Pins 2 & 3 closed
»	Factory configured - do not alter	J16	Unidentified
»	Factory configured - do not alter	J17	Unidentified
»	CMOS protection enabled	J1B	Pins 1 & 2 closed
	CMOS clear	J1B	Pins 2 & 3 closed
»	Password normal operation	J2B	Pins 1 & 2 closed
	Password clear	J2B	Pins 2 & 3 closed
»	Factory configured - do not alter	J3A	Pins 1 & 2 closed
»	CPU 1 is primary	J3B	Pins 1 & 2 closed
	CPU 2 is primary	J3B	Pins 2 & 3 closed
»	Monitor type select color	J4A	Pins 1 & 2 closed
	Monitor type select monochrome	J4A	Pins 2 & 3 closed
»	Factory configured - do not alter	J4B	Pins 1 & 2 closed
»	Factory configured - do not alter	J5A	Pins 1 & 2 closed
»	BIOS write protect enabled	J6A	Pins 1 & 2 closed
	BIOS write protect disabled	J6A	Pins 2 & 3 closed
»	Factory configured - do not alter	J7A	Pins 2 & 3 closed
»	Factory configured - do not alter	J7B	Pins 1 & 2 closed

SIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
16MB	(1) 4M x 36	None	None	None
16MB	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36	None
16MB	(1) 2M x 36	(1) 2M x 36	None	None
16MB	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
17MB	(1) 4M x 36	(1) 256K x 36	None	None
17MB	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36	None
17MB	(1) 256K x 36	(1) 4M x 36	None	None
18MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	None
18MB	(1) 4M x 36	(1) 512K x 36	None	None
18MB	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36	None
18MB	(1) 512K x 36	(1) 4M x 36	None	None
19MB	(1) 4M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
20MB	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36	None
20MB	(1) 4M x 36	(1) 1M x 36	None	None
20MB	(1) 2M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
20MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	None
20MB	(1) 1M x 36	(1) 4M x 36	None	None
22MB	(1) 4M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
24MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	None
24MB	(1) 4M x 36	(1) 2M x 36	None	None
24MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	None
24MB	(1) 2M x 36	(1) 4M x 36	None	None
25MB	(1) 256K x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
26MB	(1) 512K x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
28MB	(1) 4M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
28MB	(1) 1M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
32MB	(1) 8M x 36	None	None	None
32MB	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36	None
32MB	(1) 4M x 36	(1) 4M x 36	None	None
32MB	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
33MB	(1) 8M x 36	(1) 256K x 36	None	None
33MB	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36	None
33MB	(1) 256K x 36	(1) 8M x 36	None	None

SIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
34MB	(1) 8M x 36	(1) 256K x 36	(1) 256K x 36	None
34MB	(1) 8M x 36	(1) 512K x 36	None	None
34MB	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36	None
34MB	(1) 512K x 36	(1) 8M x 36	None	None
35MB	(1) 8M x 36	(1) 256K x 36	(1) 256K x 36	(1) 256K x 36
36MB	(1) 8M x 36	(1) 512K x 36	(1) 512K x 36	None
36MB	(1) 8M x 36	(1) 1M x 36	None	None
36MB	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36	None
36MB	(1) 1M x 36	(1) 8M x 36	None	None
38MB	(1) 8M x 36	(1) 512K x 36	(1) 512K x 36	(1) 512K x 36
40MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	None
40MB	(1) 8M x 36	(1) 2M x 36	None	None
40MB	(1) 4M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
40MB	(1) 2M x 36	(1) 4M x 36	(1) 4M x 36	None
40MB	(1) 2M x 36	(1) 8M x 36	None	None
44MB	(1) 8M x 36	(1) 1M x 36	(1) 1M x 36	(1) 1M x 36
48MB	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36	None
48MB	(1) 8M x 36	(1) 4M x 36	None	None
48MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	None
48MB	(1) 4M x 36	(1) 8M x 36	None	None
49MB	(1) 256K x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
50MB	(1) 512K x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
52MB	(1) 1M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
56MB	(1) 8M x 36	(1) 2M x 36	(1) 2M x 36	(1) 2M x 36
56MB	(1) 2M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36	None
64MB	(1) 8M x 36	(1) 8M x 36	None	None
64MB	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
64MB	(1) 16M x 36	None	None	None
65MB	(1) 256K x 36	(1) 8M x 36	(1) 8M x 36	None
66MB	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36	None
68MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	None
72MB	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36	None
80MB	(1) 8M x 36	(1) 4M x 36	(1) 4M x 36	(1) 4M x 36
80MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	None
96MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	None
97MB	(1) 256K x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
98MB	(1) 512K x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36

SIMM CONFIGURATION
Size	Bank 0	Bank 1	Bank 2	Bank 3
100MB	(1) 1M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
104MB	(1) 2M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
112MB	(1) 4M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36	(1) 8M x 36
128MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	None
192MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	None
256MB	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36	(1) 16M x 36

CACHE JUMPER CONFIGURATION
Size	J101	J102	J103	J104	J105
256K	2 & 3	2 & 3	1 & 2	2 & 3	2 & 3
512K	1 & 2	1 & 2	2 & 3	1 & 2	2 & 3
Note: Pins designated are in the closed position.

CPU SPEED SELECTION
CPU speed	Clock speed	Multiplier	J1A	J2A	J5B	J6B	J2201
120MHz	60MHz	2x	1 & 2	2 & 3	1 & 2	1 & 2	1 & 2
150MHz	60MHz	2.5x	2 & 3	2 & 3	1 & 2	1 & 2	1 & 2
Note: Pins designated are in the closed position.

CACHE CONFIGURATION
Size	SL1
256KB	None
512KB	256KB

VIDEO MEMORY CONFIGURATION
Size	Bank 0	Bank 1
512KB	512KB	None
1024KB	512KB	512KB