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CPEx GX-333-X CyberResearch
®
CPU Cards
26 ©Copyright 2007 CyberResearch, Inc.
Internal Connectors
1. CN1: -5V & -12V Supplementary Power Connector
This connector provides a –5V and a-12V input pins. These two minus voltage pins
connect to the identical pins on ISA bus golden fingers.
Table 2-4 CN1: -5V & -12V Connector Pinouts
PIN DESCRIPTION
1
-5V
2 GND
3
-12V
Figure 2-9 CN1 –5V & -12V
2. CN2: Power 4P Connector
The CPEx GX-333-X is equipped with an onboard external power connector, CN2. You can connect a 4P power plug directly to
CN2 if you use AT power supply.
Table 2-5 CN2: Power 4P Connector
PIN DESCRIPTION
1
+5V
2 GND
3
GND
4 +12V
Figure 2-10 CN2 4P Power
3. CN3: SBVCC ATX Power Feature Connector
The SBVCC connector can support an advanced soft power switch function providing one
PS_ON and one 5V standby. If an ATX power supply is used, connect an ATX-to-4P adapter
power cable between the SBVCC connector and ATX power source. Also connect a power
on/off switch to the ATX ON/OFF switch. Note that your ATX power supply should provide a