Pcie Expansion Slot Definitions - HPE ProLiant ML30 Gen10 Plus Maintenance And Service Manual

Item Item Description Description
1 PCI Express version
2 Physical connector link width
3 Negotiable link width

PCIe expansion slot definitions

PCIe expansion slot definitions
IMPORTANT: IMPORTANT: If an Intel Pentium processor is installed, the data transfer rate (throughput) of the PCIe4 expansion slot 1
switches down to PCIe3 speed.
Slot number Slot number Slot type Slot type
1 PCIe4 x16 (16, 8, 4, 1)
2 PCIe3 x8 (4, 1)
3 PCIe3 x16 (4, 1)
4 PCIe3 x8 (4, 1)
Definition Definition
Each PCIe version corresponds to a specific data transfer rate between
the processor and peripheral devices. Generally, a version update
corresponds to an increase in transfer rate.
PCIe 1.x
PCIe 2.x
PCIe 3.x
PCIe 4.x
The PCIe technology is under constant development. For the latest
information, see the PCI-SIG website
PCIe devices communicate through a logical connection called an
interconnect or link. At the physical level, a link is composed of one or
more lanes. The number of lanes is written with an x prefix with x16
being the largest size in common use.
x1
x2
x4
x8
x16
These numbers correspond to the maximum link bandwidth supported by
the slot.
Slot power Slot power Supported form factors Supported form factors
75 W Full-height, full-length
25 W Full-height, half-
length
75 W Full-height, full-length
25 W Full-height, half-
length
HPE ProLiant ML30 Gen10 Plus Server Maintenance and Service Guide
PCI-SIG website.
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