AOpen DX34 Install DIMM Modules, Connecting Redundant SPS Connector, Connecting IDE & FDD Cable

6. Install DIMM Modules

This motherboard has three 168 -pin DIMM sockets that allow you to install PC100 or PC133 memory up to 1.5GB. This motherboard supports not only SDRAM but also VCM and Registered DRAM.

Tip: The driving capability of new generation chipset is limited due to the lack of a memory buffer (to improve performance). This makes DRAM chip count an important factor to take into consideration when you install DIMMs.

8. Connecting Redundant SPS Connector

This motherboard implements Redundant SPS connector to provide better expansibility on superior server. It is feasible to install an additional 337-watts power supply module (optional) in a hot-swappable redundant configuration, which enables a fully-configure system to continue running even if one power module fails.

	Present 1
PS_ON	I2C CLK
PS 3 Fail	Fan 1 Fail
Fan 3 Fail	PS 1 Fail

Unfortunately, there is no way that the BIOS can identify the correct chip count, you need to calculate the chip count by yourself.

DIMM 3

DIMM 2

DIMM 1

I2CDA Present 3

GND

13	1
14	2
	PS 2 Fail
	Fan 2 Fail
	Present 2
	5VSB

7. Connecting ATX and AGP Pro Power Connector

The DX34 / DX34Plus uses Intel® SSI (Server System Infrastructure) type 24-pin 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.

9. Connecting IDE & FDD Cable

Connect 34-pin floppy cable and 40-pin ATA66 or ATA33 IDE cable to floppy connector FDC and IDE connector IDE1, IDE2. Pin1 of cable is normally marked with red color. Be careful of the pin1 orientation. Wrong orientation may cause system damage.

24-pin ATX Power connector

			13	1
			+12V		+5V
			5VSB		+5V
			PWR OK		-5v
		AGP Pro Power	COM		COM
			+5V		COM
			COM		COM
6	1		+5V		PS-ON
			COM		COM
+5V		GND	+3.3V		-12V
+3.3V		GND	+3.3V		+3.3V
+3.3V		GND

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

IDE1 (Primary)

ATA/66 IDE

Connector

IDE2 (Secondary)

FDD

Connector

Pin 1

20 19

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