Chapter 2: Installation 2-3 Connecting Cables Now that the motherboard is installed, the next step is to connect the cables to the board. These include the data (ribbon) cables for the peripherals and control panel and the power cables. Connecting Data Cables The ribbon cables used to transfer data from the peripheral devices have been carefully routed to prevent them from blocking the flow of cooling air that moves through the system from front to back. If you need to disconnect any of these cables, you should take care to keep them routed as they were originally after reconnecting them (make sure the red wires connect to the pin 1 locations).
The following data cables (with their locations noted) should be con- nected. (See the layout on page 5-10 for connector locations.) l IDE Device Cables (J23 and J24) l Floppy Drive Cable (J26) l Ultra 160 LVD SCSI Connector (JA1) l Control Panel Cable (JF1 Supplied with Supermicro Servers, see next page) Connecting Power Cables The P3TDLR has a 24-pin primary power supply connector desig- nated "ATX Power" for connection to the ATX power supply. The ATX Power connector also is keyed to accept 20-pin power connec- tors if the power supply you are using has that type. See Section 5- 8 for power connector pin definitions. 2-3