F5F Stay Refreshed Hardware Desktop RX 6800 XT operating on PCIe 3.0x16 connections Speed issue persists

RX 6800 XT operating on PCIe 3.0x16 connections Speed issue persists

RX 6800 XT operating on PCIe 3.0x16 connections Speed issue persists

I
iPhan
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03-12-2020, 10:59 AM
#1
I recently installed a new PC and noticed the PCIe connection speed lists as 3.0x16 instead of the expected 4.0x16. I checked the BIOS settings and set the slot to 4.0 manually, but it didn’t resolve the issue. I also cleaned the contacts and repositioned the GPU firmly to guarantee a solid connection. All drivers are current, and Windows is up to date. The Power Plan is set to high performance. I’ve attached a screenshot of my system configuration for reference. I’m using a SSUPD Meshlicious cabinet with a 4.0 riser cable.
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I
iPhan
03-12-2020, 10:59 AM #1

I recently installed a new PC and noticed the PCIe connection speed lists as 3.0x16 instead of the expected 4.0x16. I checked the BIOS settings and set the slot to 4.0 manually, but it didn’t resolve the issue. I also cleaned the contacts and repositioned the GPU firmly to guarantee a solid connection. All drivers are current, and Windows is up to date. The Power Plan is set to high performance. I’ve attached a screenshot of my system configuration for reference. I’m using a SSUPD Meshlicious cabinet with a 4.0 riser cable.

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T
TheYoanZ
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03-12-2020, 11:06 AM
#2
GPU-Z indicates a Gen 4 connection, but there might be inaccuracies in the software. Have you observed any drops in performance?
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T
TheYoanZ
03-12-2020, 11:06 AM #2

GPU-Z indicates a Gen 4 connection, but there might be inaccuracies in the software. Have you observed any drops in performance?

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H
Hades666201
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03-20-2020, 06:41 AM
#3
I haven't noticed any performance drops. From what I understand, RX 6000 series cards function well with PCIe 3.0 and don't overwhelm the available bandwidth. I also questioned whether the problem lies with GPU-Z; I verified through the BIOS system info as well as AMD Adrenaline, both showing consistent results. The GPU is running at 3.0x16 speeds, yet it claims 4.0x16 are achievable with it.
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H
Hades666201
03-20-2020, 06:41 AM #3

I haven't noticed any performance drops. From what I understand, RX 6000 series cards function well with PCIe 3.0 and don't overwhelm the available bandwidth. I also questioned whether the problem lies with GPU-Z; I verified through the BIOS system info as well as AMD Adrenaline, both showing consistent results. The GPU is running at 3.0x16 speeds, yet it claims 4.0x16 are achievable with it.

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