After the installation of the new PSU the system does not start.
- Check the power cord and the power supply of the wall socket and/or multiple socket strip. Also check whether the multiple socket strip can supply the necessary power.
- Check all connections within the PC; maybe not all cables are correctly connected.
- Check the internal cable of the I/O-switch of the PC case to the mainboard.
- Check all PCI-cards for correct installtion
- Check the components for possible short-circuits or defects.
Please also check the other components for compatibility. Often mainboard chipsets are not compatible with all memory and/or graphics card solutions. Contact the manufacturer of the component to get more information.
Mainboards display incorrect voltage in BIOS
- When you check the voltage of the power supply in the BIOS of the mainboard, it is possible that these are displayed incorrectly.
With a multimeter (voltage measurement device), the voltage can be determined directly from the power supply cable. This provides more precise measurement.
The system doesn´t start or is instable after a new graphic card was installed
- Check the PCI-Express Connector if they are connected correctly
- The new graphic card needs more power than the current PSU can support. Change your PSU to a stronger one of the COUGAR®-Series or change your graphic card to a more economic model.
The PSU is causing a short circuit
- the system is overloaded (continuous working 24/h, adding new hardware components)
- the floppy disk drive was connected incorrectly to the PSU, check the connection
- the system becomes too warm/hot. Additional case fans could solve this problem, also cleaning the system from dust could help
The PSU is too noisy
The PSU is working on 100% or more. Take care that the PSU is not overloaded for a long time. The best efficiency for a PSU is about 50%.
- because of high temperatures inside the case, the PSU becomes too warm and the PSU fan has to increase the working speed. Please reduce the temperatur (e.g more case fans)
- take care that the CPU-fan doesn´t blow the warm air directly into the PSU, this also could cause high temperatures inside the PSU.