B450 Pro4 running GPU at x8, not x16 |
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Vulpie05
Newbie Joined: 26 Dec 2018 Status: Offline Points: 64 |
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Posted: 22 Mar 2021 at 4:07am |
Hi-
I've been running my B450 Pro4 for a few years with no problems. I had a 2200G APU and a 1660 Ti GPU. The GPU would run at x8 PCIe link speed, as advertised, because of the Raven Ridge APU. The other day I upgraded the 2200G to a 2700, and the PCIe link speed is still at x8. I have cleared CMOS, reinstalled my NVIDIA driver, and ran DDU for the old AMD drivers. Still runs at x8. What am I missing here£ I don't have any other PCIe slots filled, nor any M.2 drives (I'm using 2 sata drives, though). Any help would be appreciated, thank you! |
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muziqaz
Groupie Joined: 04 Jan 2021 Location: London Status: Offline Points: 590 |
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X8 is still plenty for the GPU. For reference I run my 6900xt at x8, and see no performance issues.
In order to get x16n working, there is BIOS setting which let's you select PCI-e link speed. Since Asrock did not bother adding English Manual in their support page, I cannot tell you exactly where that setting is |
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folding@home
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