HOT-541 (VER. 2.2) Motherboard Settings and Configuration

Processor	CX M1/AM K5/Pentium
Processor Speed	75/80/90/100/120/133/150/180MHz
Chip Set	Intel
Maximum Onboard Memory	128MB (EDO supported)
Cache	256/512KB
BIOS	AMI/Award
Dimensions	280mm x 220mm
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), VRM connector, cache slot, IR connector
NPU Options	None

CONNECTIONS
Function	Label	Function	Label
Serial port 1	CN1	Turbo LED	JP14
Serial port 2	CN2	Green PC connector	JP19
Parallel port	CN3	IDE interface LED	JP20
Floppy drive interface	CN4	PS/2 mouse interface	JP52
IDE interface 2	CN5	IR connector	JP63
IDE interface 1	CN6	Green PC LED	JP74
Speaker	JP7	32-bit PCI slots	PC1 - PC4
Power LED & keylock	JP8	VRM connector	VRM
Reset switch	JP12	Cache slot	SL1
Turbo switch	JP13

USER CONFIGURABLE SETTINGS
Setting		Label	Position
»	Flash BIOS voltage select 5v	JP9	Open
	Flash BIOS voltage select 12v	JP9	Pins 2 & 3 closed
»	CMOS memory normal operation	JP11	Open
	CMOS memory clear	JP11	Closed
»	Monitor type select color	JP71	Closed
	Monitor type select monochrome	JP71	Open
»	Password normal operation	JP72	Open
	Password clear	JP72	Closed

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

DRAM CONFIGURATION (CON’T)
Size	Bank 0	Bank 1
64MB	(2) 4M x 36	(2) 4M x 36
72MB	(2) 1M x 36	(2) 8M x 36
72MB	(2) 8M x 36	(2) 1M x 36
80MB	(2) 2M x 36	(2) 8M x 36
80MB	(2) 8M x 36	(2) 2M x 36
96MB	(2) 4M x 36	(2) 8M x 36
96MB	(2) 8M x 36	(2) 4M x 36
128MB	(2) 8M x 36	(2) 8M x 36
Note: Board accepts EDO memory.

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

CACHE JUMPER CONFIGURATION
Size	JP4	JP64
256KB (A)	Pins 2 & 3 closed	N/A
256KB (B)	Pins 2 & 3 closed	Pins 2 & 3 closed
256KB (C)	Pins 2 & 3 closed	Pins 2 & 3 closed
512KB (A)	Pins 1 & 2 closed	N/A
512KB (B)	Pins 1 & 2 closed	Pins 1 & 2 closed

CACHE VOLTAGE CONFIGURATION
Setting	JP78
Mixed mode	Pins 1 & 2 closed
3.3v	Pins 2 & 3 closed

CPU SPEED SELECTION
Setting	JP15	JP16	JP79
75MHz	Open	Open	Open
80MHz	Open	Closed	Closed
90MHz	Closed	Closed	Open
100MHz	Closed	Open	Open
120MHz	Closed	Closed	Open
133MHz	Closed	Open	Open
150MHz	Open	Open	Open
180MHz	Closed	Closed	Open

AT BUS CLOCK SPEED SELECTION
System clock	AT bus clock	JP18
40MHz	5MHz	Pins 2 & 3 closed
40MHz	6.67MHz	Pins 1 & 2 closed
50MHz	6.25MHz	Pins 2 & 3 closed
50MHz	8.33MHz	Pins 1 & 2 closed
60MHz	7.5MHz	Pins 2 & 3 closed
60MHz	10MHz	Pins 1 & 2 closed
66MHz	8.25MHz	Pins 2 & 3 closed
66MHz	11MHz	Pins 1 & 2 closed

CPU MULTIPLIER SELECTION
Setting	JP3	JP58
1.5x	Open	Open
2x	Closed	Open
2.5x	Closed	Closed
3x	Open	Closed
Note: If CX M1 is installed, JP3 & JP58 must be open.

CPU VOLTAGE SELECTION
Setting	J8	J9	J10
3.3v (STD/VR)	Closed	Open	Open
3.4v (VR/VRE)	Open	Closed	Open
3.6v (VRE)	Open	Open	Closed

VRM CONFIGURATION
Setting	JP50	JP51	JP56	JP57
On board regulator installed	1 & 3, 2 & 4	Open	Closed	Closed
Add on VRM installed at VRM	Open	1 & 3, 2 & 4	Open	Open
On board regulator and add on VRM installed at VRM	Open	Open	Closed	Closed
Note: Pins designated should be in the closed position.

DMA CHANNEL SELECTION
Channel		JP59	JP60	JP61
»	1	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	3	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 2 & 3 closed

PS/2 MOUSE CONFIGURATION
Setting	JP52
12-pin header	Pins 2, 3, 4, 5, 6, 8, 9, 10, 11, 12 closed
6-pin mini	Pins 1 - 6 closed