General Description 2-11

1Processor socket 1-1 CPU1 socket 1-2 CPU2 socket

2Power connectors

3DIMM sockets

(DIMM #A-1, #A-2, #A-3, #B-1, #B-2, and #B-3 from bottom to top)

4Cooling fan connector

4-1: CPU1 heat sink fan

4-2: CPU2 heat sink fan

4-3: Front fan

4-4: Rear fan

4-5: VR fan

5SAS connector

(Not provided for SATA model. The last digit shows a channel number.)

6Connector for RAID5 activation key

7SAS SW RAID select jumper switch (Not provided for SATA model.) See Chapters 4 and 9 for switch setting.

8Disk LED connector

9USB port connector

10USB device connector

11IDE connector

12Serial ATA connector

(12-1 to 12-4 are not provided for SAS model. The last digit shows a channel number.)

13Lithium battery

14Switch/LED cable connector

15CMOS configuration jumper switch

16Serial port B connector (for option device)

17IPMB connctor

18PCI board slots (#1 to #5 from top) 18-1: PCIe ×4

18-2: 64-bit/100MHz PCI-X

18-3: PCIe ×8

18-4: PCIe ×1 (connector: ×4)

18-5: 32-bit/33MHz PCI

19Connector for external device

20Reserved