HP ProLiant DL580 Gen8 Server - Manual (Page 11)

Component identification 11
I/O board components
Item Description
1 NMI jumper
2 Slot 1 PCIe3 x16 (16, 8, 4, 2, 1)
3 Slot 2 PCIe3 x16 (16, 8, 4, 2, 1)
4 System maintenance switch
5 Slot 3 PCIe3 x16 (16, 8, 4, 2, 1)
6 Slot 4 PCIe3 x16 (8, 4, 2, 1)
7 Slot 5 PCIe3 x16 (8, 4, 2, 1)
8
Slot 6 PCIe3 x16 (16, 8, 4, 2, 1)
9 Slot 7 PCIe3 x16 (8, 4, 2, 1)
10 Slot 8 PCIe3 x16 (8, 4, 2, 1)
11 Slot 9 PCIe3 x16 (16, 8, 4, 2, 1)
12 SPI board connector
13 FlexibleLOM connector