How can I find out if PCI-e slot is 1.0, 2.0 or 3.0 in Linux terminal?

reno_queen

I'm going to purchase a GPU which is for PCI-e 3.0. But since I don't know what PCI-e slot it is in my computer I need to find it out somehow. Is it possible to find it from the terminal in Linux?

Originally asked by starcorn on Stack Exchange (superuser) (CC BY-SA 4.0).

uphilltech

Great question — answering as the UphillTech team:

Using lspci -vv as root, you can get the transfer rate and compare it with the transfer rate specified for the revisions . A sample output would read: # lspci -vv | grep -E 'PCI bridge|LnkCap' 00:02.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode]) LnkCap: Port #2, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us 00:03.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode]) LnkCap: Port #1, Speed 2.5GT/s, Width x1, ASPM L0s L1, Latency L0 <512ns, L1 <4us 00:04.0 PCI bridge: NVIDIA Corporation C51 PCI Express Bridge (rev a1) (prog-if 00 [Normal decode]) LnkCap: Port #0, Speed 2.5GT/s, Width x16,...

Full answer by quazgar: https://superuser.stackexchange.com/a/930778 (CC BY-SA 4.0).

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