ATLAS PCI - II Motherboard Settings and Configuration

Processor	Pentium
Processor Speed	75/90/100/120/133MHz
Chip Set	Unidentified
Video Chip Set	None
Maximum Onboard Memory	256MB DRAM (EDO supported)
Maximum Video Memory	None
Cache	256/512/1024KB
BIOS	AMI
Dimensions	254mm x 203mm
I/O Options	32-bit PCI slots (4), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), green VGA interface, cache slot
NPU Options	None

CONNECTIONS
Purpose	Location	Purpose	Location
IDE interface 2	J1	Green PC connector	J27
Serial port 1	J3	Reset switch	J29
Serial port 2	J4	Turbo LED	J33
Parallel port	J6	IDE interface LED	J34
Floppy drive interface	J7	Green VGA interface	J42
IDE interface 1	J8	Chassis fan power	J46
PS/2 mouse interface	J13	32-bit PCI slots	PC1 - PC4
Power LED & keylock	J19	Cache slot	SL1
Speaker	J22

USER CONFIGURABLE SETTINGS
Function		Label	Position
	Jumper information unidentified	J20	N/A
	Jumper information unidentified	J31	N/A
»	PS/2 mouse IRQ12 enabled	J38	Pins 1 & 2 closed
	PS/2 mouse IRQ12 disabled	J38	Pins 2 & 3 closed
	Jumper information unidentified	J45	N/A
	Jumper information unidentified	J47	N/A
	Jumper information unidentified	J50	N/A

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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
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
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) 16M x 36	None
128MB	(2) 8M x 36	(2) 8M x 36
130MB	(2) 16M x 36	(2) 256K x 36
132MB	(2) 16M x 36	(2) 512K x 36
136MB	(2) 16M x 36	(2) 1M x 36
144MB	(2) 16M x 36	(2) 2M x 36
160MB	(2) 16M x 36	(2) 4M x 36
192MB	(2) 16M x 36	(2) 8M x 36
256MB	(2) 16M x 36	(2) 16M x 36
Note: Board accepts EDO memory.

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

CACHE JUMPER CONFIGURATION
Size	J16	J26	J28
256KB (A)	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
256KB (B)	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
512KB (A)	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
512KB (B)	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
1MB (C)	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed
1MB (C)	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

CACHE TYPE CONFIGURATION
Setting	J30
SMT cache enabled	Pins 1 & 2 closed
SMT cache disabled	Pins 2 & 3 closed

CPU SPEED SELECTION
Speed	J24	J25	J37	J39
75MHz	Closed	Closed	Open	Open
90MHz	Closed	Open	Open	Open
100MHz	Open	Closed	Open	Open
120MHz	Closed	Open	Open	Closed
133MHz	Open	Closed	Open	Closed

CPU TYPE SELECTION
Type	J11
VR	Pins 1 & 2 closed
VRE	Pins 2 & 3 closed

CPU VOLTAGE SELECTION
Voltage	J2	J12	J21
From regulator	Open	1 & 2, 3 & 4, 5 & 6	1 & 2, 3 & 4, 5 & 6
From regulator & VRM	Open	1 & 2, 3 & 4, 5 & 6	Open
From 3.3v power supply	1 & 2, 3 & 4, 5 & 6	Open	1 & 2, 3 & 4, 5 & 6