AOpen D X37PU-EG-E0110A Support Four USB Connectors, Connecting ATX and AGP Pro Power Connector

21 22

6. Support Four USB Connectors

This motherboard provides four USB connectors to connect USB devices, such as mouse, keyboard, modem, printer, etc. There are two connectors on the PC99 back panel. You can use proper cable to connect other USB connectors to the back panel or front panel of chassis.

Pin 1

USB2 Connector

NC KEY

GND GND

SBD3+ SBD2+

SBD3- SBD2-

+5V +5V

1

7. Connecting ATX and AGP Pro Power Connector

The DX37Plus -U uses standard ATX power connector. The 6-pin AGP Pro Power connector provides extra +5V and +3.3V power for AGP Pro VGA card. Make sure you plug in the right direction.

8. Connecting IDE and Floppy Cables

Connect 34-pin floppy cable and 40-pin, 80-wire IDE cable to floppy connector FDC and IDE connector. Be careful of the pin1 orientation. Wrong orientation may cause system damage.

Primary	Primary
Slave (2nd)	Master (1st)

IDE 1 (Primary)

IDE 2 (Secondary)

Pin 1

	Secondary
Secondary
Slave (4th)	Master (3rd)

ATA 33/66/100
IDE Connector	FDD Connector
Pin 1

9. Connecting Front Panel Cable

Attaching such as power LED, speaker, reset switch, power switch connector, etc.… to

corresponding pins. The green cap on pin 19 & 20 is to disable Chassis Intrusion Switch, you may just take it off to able this function.

+12V

5VSB PW-OK

COM +5V COM +5V

COM +3.3V

+5V

-5V

COM

COM

COM

PS-ON

COM -12V

Chassis Intrusion

Switch

Power LED

	ATX Power
	Switch	1	2
Pin 1		21	22

Reset Switch

HDD LED

+3.3V

6

+5V

+3.3V

+3.3V

+3.3V

1

GND

GND

GND

INT S/W GND

RST S/W GND

	+5V
+5V	HDD LED
GND	HDD LED
PWR LED	+5V
+5VSB	GND
1	2