The small 4 pin connector on the psu is for a floppy drive.
Do you have adaptors for the case fans to get them to work on Molex connectors?
If so I'd try connecting them via molex.
Can you not also use the fan headers on the motherboard for the case fans by removing the adaptors?
Are your case fans 3 pin or 4 pin with the adaptors removed?
molex connector
This page describes the connections that come out of various psu's,it will make it easier for us to help you if you know the names of the connectors you are trying to use.
http://www.playtool.com/pages/psuconnectors/connectors.html
Do you have adaptors for the case fans to get them to work on Molex connectors?
If so I'd try connecting them via molex.
Can you not also use the fan headers on the motherboard for the case fans by removing the adaptors?
Are your case fans 3 pin or 4 pin with the adaptors removed?
molex connector
![molex.jpg](http://www.escotal.com/Images/computer/molex.jpg)
This page describes the connections that come out of various psu's,it will make it easier for us to help you if you know the names of the connectors you are trying to use.
http://www.playtool.com/pages/psuconnectors/connectors.html
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