1.PCI slot
2.PCIe x16 slot (wired as x4)
3.PCIe x16 slot
4.PCIe x1 slot
5.PCIe x16 slot (accelerated graphics port)
6.PCIe x16 slot (wired as x4)
7.USB 3.0 front panel connector
8.intrusion switch connector
9.DIMM slots (available only when optional CPU is installed)
10.CPU2 fan socket
11.CPU2
12.DIMM slots (available only when optional CPU is installed)
13.front panel audio connector
14.CPU1 power connector
15.HDD1 fan connector
16.system fan 1 connector
17.DIMM slots
18.CPU1 socket
19.DIMM slots
20.system fan 2 connector
21.PSWD jumper
22.HDD temperature sensor connector
23.system fan 3 connector
24.remote power enable
25.front panel & USB 2.0 connector
26.internal USB 2.0 connector
27.
28.HDD & optical drive connectors
29.SAS1 connector
30.RTCRST jumper
31.
32.internal USB 2.0 connector
33.CPU2 power connector
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