be quiet! SFX-L - Инструкция по эксплуатации - Страница 5

Note

: You will need a screwdriver to fit the power supply in your PC. Only use the screws provided with 

the power supply because they have the correct thread�

Caution:

 Only use the supplied cable set� Using cables that were not included (e�g� cables of older power 

supply unit series) may lead to defects!

First remove your old power supply. To do so, proceed as follows:

∙

Carefully disconnect your PC from any power sources and unplug all cables connected to the PC�

∙

Open the PC case, taking care to follow the manufacturer’s instructions�

∙

Disconnect all plugs from the motherboard and all other components, such as FDDs, HDDs, or 
optical drives� Make sure that there are no plugs from the old power supply connected to any of 
the components�

∙

Now remove the screws at the rear of the power supply and carefully pull the power supply out of the 
PC case� Take special care that no cables get caught in the components and damage them�

Fitting your new be quiet! power supply:

∙

Place the new power supply in the space provided in the PC case and connect to the rear panel using 
the four screws provided� Do not use excessive force�

∙

Plug the 20/24 pin connector into the socket provided on the motherboard� If you have a 24 pin 
connection, place the remaining 4 pins in the correct position before you plug the connector into 
the socket� If you have a motherboard with a 20 pin connector, fold the additional 4 pins to one side�

∙

Now plug the 12V-P4 connector for the CPU into the socket provided on the motherboard� 

5.  TROUBLESHOOTING

Please note:

If you have an ATX motherboard, the power supply is enabled by the motherboard in order to boot the 

PC. For this reason, please refer to the motherboard or case manual to check whether the on/off switch 

is connected correctly�

Caution

: There is a risk of fatal injury when working on power sources. If you notice traces of smoke, 

damaged cables and exposure to liquids, immediately disconnect the power from the mains and do not 
use it again�
Never open the power supply case� High-voltage components in the interior of the power supply may still 
be live after a longer period of disuse�

Please have any and all necessary repairs conducted by an authorized expert!

Opening the device will void your warranty.

If the system in which you installed the power supply does not work properly, check for these possible 

sources of error first:

∙

Check that the mains cable to the power supply is correctly and firmly plugged into the power supply 

and the socket� Ideally, you should use a separate power socket for the computer power supply�

∙

Check whether all connectors are correctly plugged in, and make any necessary adjustments, such 
as in case of incorrect polarity�

∙

Check  the  connection  between  the  on/off  switch  on  the  case  to  the  motherboard.  Refer  to  the 

motherboard manual if needed! Switch the power supply on by setting the switch to position “I” and 

then pressing the on/off switch on the case. If the power supply still does not switch on, continue 

with the next item�

∙

Check your system for possible short circuits or faulty hardware, making sure that you switch off the 

computer and disconnect all devices not required for the computer to start� Switch the computer 

4

5