I/O Expansion Options - IBM X3850 X6 Product Manual

I/O expansion options

The server supports up to 11 PCIe slots plus dedicated Mezzanine LOM slot (12 total) as follows:
In the Storage Book (standard in all models): Two PCIe 3.0 x8 slots for supported internal RAID

controllers and SAS HBAs
In the Primary I/O Book (standard in all models):

o Two PCIe 3.0 x16 slots (x16-wired), half length, full height, up to 75 W of power
o One PCIe 3.0 x16 (x8-wired), half length, full height, up to 75 W of power
o
One mezzanine LOM 2 (ML2) slot for network adapters with the new ML2 form factor (PCIe 3.0
x8)
Two optional I/O Books, each with three slots, all full height. Optional I/O Books are enabled for

hot-swap.
The following figure shows the Primary I/O Book with the air baffle raised to show the internals.
Figure 8. Primary I/O Book
Optional I/O Books can be either of:
Half-length I/O Book:

o Two PCIe 3.0 x8 slots (x8 wired)
o One PCIe 3.0 x16 slot (x16 wired)
Full-length I/O Book:

o
Two PCIe 3.0 x16 (x16 wired)
o
One PCIe 2.0 x8 slot (x4 wired)
IBM System x3850 X6 24