Product guide

IBM System x3650 M4 25
I/O expansion options
The server supports up to six PCIe slots with different riser cards installed into two riser sockets on the
system planar (one riser socket supports installation of one riser card). Riser 1 supplies slots 1, 2, and 3.
Riser 2 supplies slots 4, 5, and 6. Standard models have Riser card 1 installed with three PCIe 3.0 x8
slots. To enable slots 4 - 6, install a second processor and a second riser card.
The following table lists the PCI riser card options available.
Table 13. PCI riser card options
Part number Feature
code
Description Maximum
supported
69Y5321 A1JU x3650 M4 PCIe Riser Card (3 x8 PCIe slots)
(one included in standard models in Riser socket 1)
2
69Y5322 A1JQ x3650 M4 PCIe Riser Card (1 x16 + 1 x8 PCIe slots) 2
81Y6843 A1JS x3650 M4 PCIX Riser Card (2 PCIX + 1 x16 PCIe slots) 2
90Y5085 A3A1 x3650 M4 PCIe Riser Card 2 (1 x16 for GPU + 1 x8 FH/HL Slots) 2
The slot form factors are as follows:
Slot 1: PCIe x8, PCIe x16, or PCI-X; full-height, full-length

Slot 2: PCIe x8 or PCI-X; full-height, half -length (not present if Riser 1 contains 90Y5085 riser card)

Slot 3: PCIe x8 or PCIe x16; full-height, half-length (not present if Riser 1 contains 69Y5322 riser

card)
Slot 4: PCIe x8, PCIe x16, or PCI-X; full-height, full-length

Slot 5: PCIe x8 or PCI-X; full-height, full -length (not present if Riser 2 contains 90Y5085 riser card)

Slot 6: PCIe x8 or PCIe x16; full-height, half-length (not present if Riser 2 contains 69Y5322 riser

card)
The slots are shown in the following figure.
Figure 6. Slot dimensions