[SOLVED] Asrock x370 taichi PCIe x8 instead of x16

[Fuad]

Hello,

• CPU Ryzen 5900x
• MB Asrock x370 taichi (bios 7.10)
• Ram 16 (8+8) GB GSkill
• Nvidia super 2060 RTX
• Sound Card Creative Sound Blaster Z (disabled onboard sound)
• Nvme WD wds100t2b0c
• 5 HDDs

I had Ryzen 1700 with taichi x370 (bios 4.60) with no issues, got Ryzen 5900x and flashed MB bios using Ryzen 1700 from V 4.60 to V 5.1 to V 7.00 to V 7.10
Removed CMOS battery and reset, installed new processor Ryzen 5900x, booted to bios, Reset to defaults, reboot, entered bios again, everything is in order.
Formatted and installed Win 10 Pro, then AMD chipset latest chipset drivers, then latest other drivers.
PC was performing normal until I found this in CPUZ (I tried many times to insert the image with no luck so I put down the link to it):

http://imgur.com/a/mWBqOH9

View: https://imgur.com/a/mWBqOH9



It clearly states that current PCIe link width is x8 instead of x16
I checked the bios and it states x16, and set everything related from -Auto- to x16
Rechecked CPUz and the result is the same x8

Is this issue MB bios related or is OS related? will reinstalling windows help? please advice.

Kind Regards

 

[Deleted member 362816]

Might give this a read, maybe remove the card reseat. Or make sure your NVME slots don't steal PCI-E lanes from the top slot.

I'm running out of ideas lol

RTX 2060 running in x8 mode instead of x16

Recently I've discovered that my graphics card is running in x8 PCI-E Lanes Mode. I'm afraid that this comes with a performance penalty. I have replaced my GPU thermal paste aprox. 1 month ago (because the card was hitting even 80*C under load). My specs are: CPU: Ryzen 5 2600X MOBO: Asus ROG Str...

linustechtips.com

 

[Deleted member 362816]

If you are using the top slot is should be x16 click the question mark next to the x8 1.1 and run the render test and see if it changes.

 

[Fuad]

If you are using the top slot is should be x16 click the question mark next to the x8 1.1 and run the render test and see if it changes.

Thank you, I am using the top slot and I clicked the question mark

Before I click:

https://gpuz.techpowerup.com/22/07/19/zg7.png

After I click:

https://gpuz.techpowerup.com/22/07/19/atx.png


Any Ideas?

 

[Deleted member 362816]

Thank you, I am using the top slot and I clicked the question mark

Before I click:

https://gpuz.techpowerup.com/22/07/19/zg7.png

After I click:

https://gpuz.techpowerup.com/22/07/19/atx.png


Any Ideas?

Before we dig deeper, Use the Cmos jumper on the board to reset the cmos//// or remove the cr2032 battery and unplug from the wall. Be a good place to reset cmos and see how it looks after.

 

[Fuad]

http://imgur.com/a/fDy1uIJ

View: https://imgur.com/a/fDy1uIJ


The above results are after Cmos reset per instructed

 

[Deleted member 362816]

http://imgur.com/a/fDy1uIJ

View: https://imgur.com/a/fDy1uIJ


The above results are after Cmos reset per instructed

Remove all pci-e devices -- Like the sound card test again.

All slots should be empty for this test except the first full pci-e slot with the GPU installed.

 

[Fuad]

http://imgur.com/a/DjytkbA

View: https://imgur.com/a/DjytkbA



Nothing is installed except the GPU in top pcie slot

 

[Deleted member 362816]

Might give this a read, maybe remove the card reseat. Or make sure your NVME slots don't steal PCI-E lanes from the top slot.

I'm running out of ideas lol

RTX 2060 running in x8 mode instead of x16

Recently I've discovered that my graphics card is running in x8 PCI-E Lanes Mode. I'm afraid that this comes with a performance penalty. I have replaced my GPU thermal paste aprox. 1 month ago (because the card was hitting even 80*C under load). My specs are: CPU: Ryzen 5 2600X MOBO: Asus ROG Str...

linustechtips.com

 

[Fuad]

http://imgur.com/a/tB8D2fJ

View: https://imgur.com/a/tB8D2fJ



Thank you, I will read the link above, and I attached a pic of my bios settings

 

[Deleted member 362816]

The bios settings is correct. We have tried all the higher level stuff, Time to try just reseating the card and looking into if the NVME drives take from the pci-e x16 lanes (I don't think this is the case) I don't think software is the issue drivers etc.

 

[Deleted member 362816]

Tbh, if a 2080ti only has a 2% loss on x8 vs x16 a rtx 2060 won't matter, I would just ignore it at this point.

https://www.techpowerup.com/review/nvidia-geforce-rtx-2080-ti-pci-express-scaling/6.html

 

[Fuad]

Can't thank you enough, I removed the card, cleaned the connectors, installed it back and everything is working now at x16 as it should!

That was very tricky to guess, Thanks allot!!!

Kind Regards

 

[Deleted member 362816]

Can't thank you enough, I removed the card, cleaned the connectors, installed it back and everything is working now at x16 as it should!

That was very tricky to guess, Thanks allot!!!

Kind Regards

Glad it worked

 

[lynton.bell]

can't believe it, removal, clean with nail polish remover and gentle tissue has resolved my personal issue being locked at x8, now back to x16. Thanks for the idea