Pci Expansion Cards; Limitations For Slots 1, 2, 4, And 5 - Supermicro SYS-521C-NR User Manual

PCI Expansion Cards

The system can accommodate six to eight PCIe 5.0 expansion cards (depending upon
configuration) and one PCIe 5.0 AIOM networking cards.

Limitations for Slots 1, 2, 4, and 5

Due to PCIe 5.0 requirements, riser card slots 1 and 2 are connected by cable to the JNVMe
1/2/3/4 port and slots 4 and 5 are connected by cable to the JNVMe 5/6/7/8 port on the
motherboard.
Item Description
1 PCIe 5.0 x8 (FH, 10.5" L)
2 PCIe 5.0 x8 (FH, 10.5" L)
3 PCIe 5.0 x16 (FHHL)
4 PCIe 5.0 x8 (FH, 10.5" L)
5 PCIe 5.0 x8 (FH, 10.5" L)
6 PCIe 5.0 x16 (FHHL)
Chapter 3: Maintenance and Component Installation
4
5
6
Figure 3-3. Expansion Card Slots
Expansion Slot Descriptions
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1
2
3