Installation Steps; Silent Operation; Troubleshooting - Akasa FREEDOM POWER AK-PSS075FGM User Manual

PROTECTION
• Over power protection - the power supply will shutdown and latch off when
power output is 105~150%
• Over voltage protection - the PSU over voltage protection circuit will shutdown
and latch off PSU if the voltage exceeds maximum limits (see table) for the
power supply
output Minimum
+ VDC or +VDC
+5 VDC
+3.3 VDC
• Over temperature protection - in the event of a fan failure or air vents being
blocked, the power supply will shutdown and enter latch mode when the
temperature exceeds critical level.
The PSU will shut down and enter latch-mode if any of the safety systems are
triggered, this avoids potential damage to the PSU or other components. The
latch mode is an internal safety switch that keeps the PSU in an off mode for a
limited time before resetting. The latch mode can be cleared by an AC power
interruption (unplugging the PSU) for 30 seconds.

SILENT OPERATION

This PSU is fitted with a 140 mm smart fan, which provides efficient and quiet
cooling.
Fan speed is controlled by the PSU relative to ambient temperature and power
supply load, this ensures optimal cooling for the PSU components while
maintaining minimal noise levels.
Fan Speed
600RPM
ambient
50ºC
25ºC
5ºC
700RPM
30% 40% 50%
7
Maximum Unit
3.4 4.4 Volts
5.74 6.5 Volts
3.76 4. Volts
PSU Load

INSTALLATION STEPS

WARNING:
Always disconnect the power supply from its AC power source before connecting/
disconnecting any cables.
Electrostatic discharge (ESD) can damage system components. Install the PSU at
an ESD - controlled workstation. If such a workstation is not available, wear an
antistatic wrist strap or touch an earthed surface before handling the PSU.
1) Open the PC chassis and mount the power supply by screwing through the
matching holes of the power supply and the chassis
2) Connect the main power connector; use 20 or 24-pin option depending on
motherboard type
3) Connect the ATX 12V connector(s); use 8 or 4-pin option depending on
motherboard requirement; to use 4-pin slide off half of the 8-pin connector
4) Connect the PCIe connector(s) to the VGA card(s); use 6-pin or 8-pin PCIe
connectors as required by VGA card(s). Two PCIe connectors are fixed
permanently to the PSU, should you need more connectors connect PCIe
cable(s) to the PSU.
5) For HDD and all other internal devices, connect SATA or MOLEX cables to PSU
modular backplate and SATA, MOLEX or FDD connector to the device
6) Double check all the connectors to the motherboard and the peripherals are
properly connected and nothing is left unconnected
7) Connect the power cord to the power supply
8) Switch on the system – the PSU fan and the system should start

TROUBLESHOOTING

If the system does not respond when switched on, please follow the instructions
below to check for problems.
1) If the PSU fan does not spin, check:
• the power cord is connected tightly
• the AC socket is live/turned on
• the chassis power button is correctly connected to the motherboard header
(please refer to motherboard manual)
• the main 24/20-pin power connector is correctly installed in the motherboard
connector
2) If the PSU fan starts to spin and stops, please check:
• the ATX 12V (8/4-pin) connector(s) is plugged in correctly
• the VGA card connector is plugged in (if applicable)
• all HDD and other devices are plugged in tightly
If you need technical support contact us at: technical@akasa.com.tw
www.akasa.com.tw
8