GPU runs in PCIe X1 instead of X16 problem

[OleksiiTech]

Title says it, here is some information:

• GPU is RX 470 8GB Mining Edition Quad UEFI with AMD/ATI Pixel Clock Patcher. Original VBIOS.
• Motherboard is Asrock H110 Pro BTC+, ofc GPU is in X16 slot.
• Other GPUs work in X16 mode if I connect them
• Under load in GPUz it changes from PCIe x1 1 to PCIe x1 3
• Cleaned pcie on gpu with Isopropyl, although it was pointless because GPU is new (Don't ask me where did I got new 470 in 2025 )
• Video is connected to Intel's iGPU, but it shoudn't be an issue.

Any ideas why is this happening?

 

[eidairaman1]

Picture of model number from the card

And rest assured its not new

 

[OleksiiTech]

Picture of model number from the card

And rest assured its not new

I already flashed RX 570 bios which works fine after drivers install without any patchers, "natively". Problem remains same, tried in other PC - still x1. Board is this one: PN S88-WE353-G30BC , RX 470 Mining Quad UEFI (W/O Fan). All other bioses worked worse. As for "newness", ofc, I can't be sure, but "whiteness" of a thing that hold gpu convinces me it is. Last photo is an example of used, "darkened" one.

I already flashed RX 570 bios which works fine after drivers install without any patchers, "natively". Problem remains same, tried in other PC - still x1. Board is this one: PN S88-WE353-G30BC , RX 470 Mining Quad UEFI (W/O Fan). All other bioses worked worse. As for "newness", ofc, I can't be sure, but "whiteness" of a thing that hold gpu convinces me it is. Last photo is an example of used, "darkened" one.

Memory - Samsung K4G80325FC

 

[eidairaman1]

I already flashed RX 570 bios which works fine after drivers install without any patchers, "natively". Problem remains same, tried in other PC - still x1. Board is this one: PN S88-WE353-G30BC , RX 470 Mining Quad UEFI (W/O Fan). All other bioses worked worse. As for "newness", ofc, I can't be sure, but "whiteness" of a thing that hold gpu convinces me it is. Last photo is an example of used, "darkened" one.


Memory - Samsung K4G80325FC

Ok please seotch to another bios on the card and get a screenshot

 

[OleksiiTech]

Ok please seotch to another bios on the card and get a screenshot

Aren't screenshots, but I made two photos of GPUz with original firmware + patched driver and a photo of GPUz with RX 570 firmware. Both would would use only one line.
Edit: I was updating successfully RX 470 original to newest drivers too.

 

[eidairaman1]

Ok make sure pcie link state in windows power properties is set for max performance, do you have msi afterburner installed?

Have you updated the motherboard chipset drivers?

Also when you flashed to the 570 bios did you uninstall the drivers and get the 570 drivers?

Also have no other parts plugged into those pcie 1x slots.

 

[VuurVOS]

Quad UEFI with AMD/ATI Pixel Clock Patcher. Original VBIOS.

Aren't screenshots, but I made two photos of GPUz with original firmware + patched driver and a photo of GPUz with RX 570 firmware. Both would would use only one line.
Edit: I was updating successfully RX 470 original to newest drivers too.

If you need to use AMD/ATI Pixel Clock Patcher with the original vbios it doesnt work properly. Likely the vbios signature is f*cked up.

If I understood correctly, you didn't need AMD/ATI Pixel Clock Patcher with the RX 570 bios?

 

[OleksiiTech]

If you need to use AMD/ATI Pixel Clock Patcher with the original vbios it doesnt work properly. Likely the vbios signature is f*cked up.

If I understood correctly, you didn't need AMD/ATI Pixel Clock Patcher with the RX 570 bios?

Yes, I didn't need patcher for RX 570 Bios. Also, I am not connecting monitor directly to GPU (Haven't soldered HDMI yet), but that shouldn't be a problem, right?

 

[OleksiiTech]

Ok make sure pcie link state in windows power properties is set for max performance, do you have msi afterburner installed?

Have you updated the motherboard chipset drivers?

Also when you flashed to the 570 bios did you uninstall the drivers and get the 570 drivers?

Also have no other parts plugged into those pcie 1x slots.

Every time I re-flashed bios I uninstalled all drivers with DDU. And when I succeed, I re-installed drivers a one more times to check if it's stable and I am not just lucky (couldn't believe I finally found bios.) I haven't msi afterburner installed, windows power settings are "Ultimate Performance", link state power management Off. MB's bios is latest version, chipset drivers updated after your message - no result. Nothing plugged in other pcie slots. Other GPU in this slot work in X16. This RX 470-570 in another PC also works only in 1 lane mod.

 

[VuurVOS]

Every time I re-flashed bios I uninstalled all drivers with DDU. And when I succeed, I re-installed drivers a one more times to check if it's stable and I am not just lucky (couldn't believe I finally found bios.) I haven't msi afterburner installed, windows power settings are "Ultimate Performance", link state power management Off. MB's bios is latest version, chipset drivers updated after your message - no result. Nothing plugged in other pcie slots. Other GPU in this slot work in X16. This RX 470-570 in another PC also works only in 1 lane mod.

Its a hardware limitation. You are missing SMD Resistors capacitors in the square. See this image also: https://www.techpowerup.com/review/sapphire-rx-570-pulse/images/back_full.jpg

 

[OleksiiTech]

Its a hardware limitation. You are missing SMD Resistors in the square. See this image also: https://www.techpowerup.com/review/sapphire-rx-570-pulse/images/back_full.jpg

Lol. I saw that with Turing mining gpus, but didn't even check that my gpu misses them. Thank you, I guess that's the answer.

 

[wNotyarD]

Its a hardware limitation. You are missing SMD Resistors in the square. See this image also: https://www.techpowerup.com/review/sapphire-rx-570-pulse/images/back_full.jpg

Isn't that a design choice for using those cards on x1 riser cards or slots in mining rigs, since it doesn't need video for starters in such situations?

Also, from the silk printing: they're capacitors - C. Resistors are marked with R.

 

[eidairaman1]

Its a hardware limitation. You are missing SMD Resistors in the square. See this image also: https://www.techpowerup.com/review/sapphire-rx-570-pulse/images/back_full.jpg
View attachment 378568

Yeah i noticed that however it was blurry imagery, being a mining card, wouldn't be surprised about it, it's no different than a LHR card.

 

[OleksiiTech]

Isn't that a design choice for using those cards on x1 riser cards or slots in mining rigs, since it doesn't need video for starters in such situations?

Also, from the silk printing: they're capacitors - C. Resistors are marked with R.

Well, sounds like soldering practice Always wanted to try. Where can I find specs for those capacitors? Which one should I buy?

 

[VuurVOS]

Well, sounds like soldering practice Always wanted to try. Where can I find specs for those capacitors? Which one should I buy?

Likely 220nF

https://electronics.stackexchange.com/questions/285705/why-place-inline-capacitors-on-pcie-traces
https://www.reddit.com/r/nvidia/comments/100vnzi/broke_off_pci_trace_capacitor_how_to_find/
https://electronics.stackexchange.c...-nf-instead-of-a-200-nf-smd-ceramic-capacitor

 

[eidairaman1]

Well, sounds like soldering practice Always wanted to try. Where can I find specs for those capacitors? Which one should I buy?

Don't overheat the pcb as you can accidentally damage or lift the traces, or damage ics, saw it happen to a student at an A&P School and I helped him salvage his pcb, not sure what could have been done to reattach the trace and pad back to the pcb though.