M590 Motherboard Settings and Configuration

Device Type	Mainboard
Processor	CX 6X86L/IBM 6X86L/CX 686MX/IBM 6X86MX/CX MII/IBM MII/AM K5/ AM K6/AM K6-2/IDT C6/Pentium/Pentium MMX
Processor Speed	90/100/120/133/150/166/180/200/233/266/300/333/350MHz
Chip Set	Unidentified
Video Chip Set	Unidentified
Maximum Onboard Memory	384MB (EDO & SDRAM supported)
Maximum Video Memory	Unidentified
Audio Chip Set	Unidentified
Cache	1024KB
BIOS	AMI
Dimensions	254mm x 218mm
I/O Options	32-bit PCI slots (3), floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, PS/2 mouse interface, serial ports (2), ATX power connector, AGP slot, digital line in, digital line out, audio in – CD-ROMs (2), ATX form card connector, sound/game connector

CONNECTIONS
Purpose	Location	Purpose	Location
ATX power connector	ATX	ATX form card connector	J3
Audio in – CD-ROM	CD1	Digital audio out	J4
Audio in – CD-ROM	CD2	Digital audio in	J5
Serial port 2	CN1	Speaker	J8/pins 1/3/5/7
Serial port 1	CN2	Power LED & keylock	J8/pins 2/4/6/8/10
Parallel port	CN3	Turbo LED	J8/pins 13 & 14
IDE interface 2	CN4	IDE interface LED	J8/pins 15 & 16
IDE interface 1	CN5	Reset switch	J8/pins 17 & 18
Floppy drive interface	CN6	Soft off power supply	J8/pins 19 & 20
Chassis fan power	FAN	VGA interface	JP4
Sound/game connector	J1	32-bit PCI slots	PC1 – PC3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	Microphone type select normal	J2	Open
	Microphone type select special	J2	Closed
»	CMOS memory normal operation	JP6	Pins 1 & 2 closed
	CMOS memory clear	JP6	Pins 2 & 3 closed
	On board sound enabled	JP9	Open
	On board sound disabled	JP9	Closed

SIMM CONFIGURATION
Size	Bank 0
8MB	(2) 1M x 36
16MB	(2) 2M x 36
32MB	(2) 4M x 36
64MB	(2) 8M x 36
128MB	(2) 16M x 36
256MB	(2) 32M x 36
Note: Board accepts EDO memory.

DIMM CONFIGURATION
Size	Bank 1	Bank 2
8MB	(1) 1M x 64	None
16MB	(1) 2M x 64	None
16MB	(1) 1M x 64	(1) 1M x 64
24MB	(1) 2M x 64	(1) 1M x 64
32MB	(1) 4M x 64	None
32MB	(1) 2M x 64	(1) 2M x 64
40MB	(1) 4M x 64	(1) 1M x 64
48MB	(1) 4M x 64	(1) 2M x 64
64MB	(1) 8M x 64	None
64MB	(1) 4M x 64	(1) 4M x 64
72MB	(1) 8M x 64	(1) 1M x 64
80MB	(1) 8M x 64	(1) 2M x 64
96MB	(1) 8M x 64	(1) 4M x 64
128MB	(1) 16M x 64	None
128MB	(1) 8M x 64	(1) 8M x 64
136MB	(1) 16M x 64	(1) 1M x 64
144MB	(1) 16M x 64	(1) 2M x 64
160MB	(1) 16M x 64	(1) 4M x 64
192MB	(1) 16M x 64	(1) 8M x 64
256MB	(1) 16M x 64	(1) 16M x 64
Note: Board accepts SDRAM memory.

DIMM VOLTAGE CONFIGURATION
Voltage	JP2A	JP2B
3.3v	Pins 2 & 3 closed	Pins 2 & 3 closed
5v	Pins 1 & 2 closed	Pins 1 & 2 closed

VIDEO MEMORY CONFIGURATION

Note: The size of the video memory is unidentified.

CACHE CONFIGURATION
Size	Bank 0
1MB	(2) 64K x 64

Updates:

- Video Chipset -> Built in high performance 64bit 3D AGP Graphics Accelerator with 4 MB frame buffer

- Video Memory Configuration -> 4 MB shared with RAM

- Audio Chipset -> Onboard 3D Sound Pro meets PC98' SPEC and supports HRTF Positional Audio, Direct Sound 3D with Aureal 3D driver, Software Wave-table Synthesizer and Digital Audio Interface (SPDIF) IN/OUT