User manual
Table Of Contents
- Chapter 1 General Information
- Chapter 2 System Setup
- 2.1 System installation
- 2.2 Installing motherboard
- 2.3 Installing passive backplane & CPU card
- 2.4 Installing plug-in cards
- 2.5 Installing disk drives
- 3.1 The Front Section of ACP-4320
- 3.2 Replacing the fans
- 3.3 Cleaning the filters
- 3.4 Replacing the power supply
- 4.1 Alarm board layout
- 4.2 Alarm board specifications
- 4.3 Switch settings
- 4.4 Thermal sensor
- Appendix A Exploded Diagram
- Appendix B Safety Instructions
- B.1 English
- B.2 German - Wichtige Sicherheishinweise

27
3.4 Replacing the power supply
The ACP-4320 supports both 300W/400W single PS/2 and 300W/400W
redundant power supplies. To change a failed power supply, please pro-
ceed as follows:
3.4.1 Replacing the single PS/2 power supply
Figure 3.5: Changing the single PS/2 power supply
1. Un-plug the power cord from the power supply.
2. Remove the upper cover of the ACP-4320 chassis.
3. Remove the two screws, which mount the hold-down clamp to the
ACP-4320 chassis, and take out the hold-down clamp.
4. Unplug the 20-/24-pin ATX power connector and +12V power
connector from the CPU card/motherboard, the floppy drive power
connector from the floppy drive disk, and the peripheral power
connector(s) from the CD-ROMs, the hard drive disk(s), and the two-
bay SATA HDD backplane.
5. Remove the six screws which mount the failed power supply to the
ACP-4320 chassis, then take out the power supply.
6. Place a new power supply into the chassis and fix it with the six