MiniITX build dropping frames like no tomorrow

[Alexaldin]

Hi everyone,

I assembled for a friend a new pc, every part is brand new. Here's the list:

Monitor: LG 34WN80C

Case: IQUNIX ZX-1 

PCIe Riser: the one who came with the case, PCIe 16x 3.0 17mm

CPU: Intel i5-13400

GPU: Gigabyte RTX 4070 Eagle OC-12GD

MoBo: ASUS ROG STRIX B760-I

RAM: Corsair Vengeance 5600Mhz K2 CL36 2x16GB

SSD: SSD 1TB Crucial P5 plus

Cooler: Kraken X53

PSU: Cooler Master V850 SFX Gold

OS: Windows 11 PRO

 

Now, the problem is that he gets really crappy FPS in pretty much every game, except League of Legends.

Hogwarts Legacy, with every settings on low and DLSS on Max Performance, only goes to 14-16 FPS in the char selection.

We tried opening Thief, the remake, and in the menu it drops to 24 FPS with the lowest settings...

 

We tried a normal 1080p monitor, only 2 FPS gain.

We tried updating drivers, bios, ME, but nothing solved the problem.

 

I tried looking into the bios to search for a settings to bring the PCIe slot to 3.0, but I didn't find the setting, and GPU-Z recognize the GPU with a "PCIe x16 4.0 @ x16 1.1". Since the riser is a 3.0, I think this mismatching of gen between GPU <-> Riser <-> Mobo is causing the problem.

 

Any other idea? Should we try and buy a new riser cable?

[IkeaGnome]

What are the temps of his components?

2 minutes ago, Alexaldin said:

I tried looking into the bios to search for a settings to bring the PCIe slot to 3.0, but I didn't find the setting, and GPU-Z recognize the GPU with a "PCIe x16 4.0 @ x16 1.1". Since the riser is a 3.0, I think this mismatching of gen between GPU <-> Riser <-> Mobo is causing the problem.

Force your PCIE to gen 3 instead of auto in BIOS and this will confirm or deny that. 

[dizmo]

If it's reading it as PCIe 1.1 then yeah, that's an issue for sure. I'd contact the company you bought the case from, as if it's defective, you shouldn't have to buy a new one yourself. I'd also check the temps of everything and make sure they're all running optimally.

[Alexaldin]

3 minutes ago, IkeaGnome said:

What are the temps of his components?

Force your PCIE to gen 3 instead of auto in BIOS and this will confirm or deny that. 

The temps are all in range, CPU 50°C and GPU 60°C.

I can't find the settings in the BIOS, looked everywhere...

3 minutes ago, dizmo said:

If it's reading it as PCIe 1.1 then yeah, that's an issue for sure. I'd contact the company you bought the case from, as if it's defective, you shouldn't have to buy a new one yourself. I'd also check the temps of everything and make sure they're all running optimally.

Oh, so it's the value after the @ that identify the riser cable gen?

Here's the screenshot of GPU-Z.

  

[IkeaGnome]

3 minutes ago, Alexaldin said:

The temps are all in range, CPU 50°C and GPU 60°C.

I can't find the settings in the BIOS, looked everywhere...

Between now and when you posted I found it in the bios manual.

https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b760-i-gaming-wifi-model/helpdesk_manual/

3 minutes ago, Alexaldin said:

Oh, so it's the value after the @ that identify the riser cable gen?

Here's the screenshot of GPU-Z.

Almost. That's the value for the generation and link width the GPU is currently running at. At idle it'll always be 1.1. Click the question mark next to that box and it'll put a load on the GPU that should bump it up to x16.

[Alexaldin]

4 minutes ago, IkeaGnome said:

Between now and when you posted I found it in the bios manual.

https://rog.asus.com/us/motherboards/rog-strix/rog-strix-b760-i-gaming-wifi-model/helpdesk_manual/

Almost. That's the value for the generation and link width the GPU is currently running at. At idle it'll always be 1.1. Click the question mark next to that box and it'll put a load on the GPU that should bump it up to x16.

Tried the rendering:

Nothing changed.

 

 

In the bios there's not the PCIe speed, only the M.2.2:

[IkeaGnome]

6 minutes ago, Alexaldin said:

In the bios there's not the PCIe speed, only the M.2.2:

Is your BIOS up to date, and does it show up with either the riser unplugged, or with the GPU plugged directly into the motherboard?

[Alexaldin]

1 minute ago, IkeaGnome said:

Is your BIOS up to date, and does it show up with either the riser unplugged, or with the GPU plugged directly into the motherboard?

We updated the bios to the 1010 version just before posting this thread.

We didn't tried the riser unplugged or the gpu directly cause the case is really hard to work on and I'm helping him remotely.

Will probably troubleshoot it irl with my riser cable 4.0 once we have a bit more free time.

I posted here to find maybe something that can work software side, since I never worked on an ITX build or on Windows 11.

Thank you everyone for the help, will post if the problem was the riser