Dell Precision™ T3500 Service Manual--Specificationsfile:///C|/Biz%20Client/2015/NewBalance/Info%20Dev%20Root/New%20Balance/SM/A00/EN/Source/specs.htm[5/15/2015 11:40:57 AM]Two front-panel connectors forheadphones and microphoneSerial One 9-pin connectors; 16550C-compatiblePS/2 Two 6-pin mini-DIN connectorIEEE 1394a One front-panel 6-pin connector (withoptional card)System board connectors:Serial ATA Seven 7-pin connectorsInternal USB device One 10-pin connectorProcessor fan One 4-pin connectorChassis fan One 3-pin connectorHDD cage fan One 3-pin connectorPCI 2.3 Two 124-pin connectorsPCI Express x8 Two 98-pin connectorPCI Express x16 Two 164-pin connectorFront panel control (USBincluded)One 40-pin connectorFront panel audio HDAheaderOne 10-pin connectorProcessor One 1366-pin connectorMemory Six 240-pin connectorsProcessor Power One 8-pin connectorPower One 24-pin connectorControls and LightsFront of the computer:Power button Push buttonPower lightAmber light . Solid amber indicates aproblem with an installed device; blinkingamber indicates an internal power problem.Green light . Blinking green in sleep state;solid green for power-on state.Drive activity light Green light . A blinking green light indicatesthe computer is reading data from or writingdata to the SATA hard drive or CD/DVD.Network link lightGreen light . Solid green indicates aconnection to an active network