Triple PG27AQN Monitors on Windows 11 Not Working

[Hellaenergy]

I'm trying to get three PG27AQN monitors to work on my ASUS TUF 3090 and it won't allow me to do more than two at a time. Every single monitor works as one or in any combination of pairs but I can't get all three to work at once/together.

Has anyone else run into this problem? The monitors are listed in device manager, Windows Display settings and Nvidia Control Panel. Windows Display settings won't let me Extend to the third monitor and Nvidia Control Panel won't let me select the third monitor without deselecting another in the multiple monitors section.

I've tried:

Clean reinstalling the nvidia driver (Game Ready 531.79)

Swapping high quality cables 

Setting different resolutions and refresh rates from very low to native (all the same on each monitor)

Reinstalling Windows 11

Testing on another system with a 4090 ROG STRIX OC (Same behavior there)

Nothing works...

[Jiaszzz_ROG]

Hello, @Hellaenergy 

May I ask how the three PG27AQN monitors are connected to the graphics card?
Could you provide the specifications and brand of the cables you are using? as well as the full model name of the ASUS TUF 3090, such as TUF-RTX3090-24G-GAMING or TUF-RTX3090-O24G-GAMING.
If possible, please provide screenshots of the Windows Display settings and Nvidia Control Panel where you are unable to configure the three monitors, as well as a complete recording of the issue occurring.

Thank you.

[Hellaenergy]

The card is TUF-RTX3090-O24G-GAMING. The DP cables came with the monitors.

[Hellaenergy]

The card is TUF-RTX3090-O24G-GAMING. The DP cables came with the monitors.

[Jiaszzz_ROG]

Hello, @Hellaenergy .

Regarding the TUF-RTX3090-O24G-GAMING graphics card, it can support up to 4 displays.
May I inquire if you are currently experiencing any issues with it?
If so, could you please provide more detailed information?
This may include your any relevant settings in Windows Display settings or Nvidia Control Panel.

Thank you.

[Hellaenergy]

See my original post.

Also, this ended up being a  hardware issue with the monitors according to Asus support. I just returned them, got some Samsung monitors and everything worked right out of the box smooth as butter.

[Ulthos]

I am having a similar problem on Windows 10, can't connect the 4th monitor to my 3080 Strix with PG27AQN. Any updates on this issue?

[Jiaszzz_ROG]

Hello, @Ulthos 

May I ask if you are currently using the ROG-STRIX-RTX3080-O10G-GAMING model of graphics card?
If you are able to display on three monitors without any issues, but the fourth monitor does not have any image? Or is there any specific issue with connecting the fourth monitor?
What type of connections are you using for all four monitors? If you connect the "fourth monitor" individually, does it display properly?
Could you provide information about your PSU's specifications? Have you tried cross-testing with a higher-wattage PSU?

Thank you.

[Ulthos]

Precisely, ROG-STRIX-RTX3080-O10G-GAMING. I see the image below when I try to extend desktop to 1 display. I have in total 6 Asus monitors, only when the PG27AQN is connected, I am stuck with 3 displays which is a shame. I am using this setup to write my thesis also and need the 4th monitor.

My PSU is an overkill Corsair HX1200i connected via custom cablemod PSU cables that never caused an issue since 2,5 years at this point. If I was able to run Flight Sim&other apps with 4 monitors on(%100GPU&a lot of CPU) for 70 hours without any crashes, it can't be the PSU.

I already did check every potential driver issues/connections/resolution&refresh rate issues etc. All monitors are connected via good cables to the GPU without any extensions.

[Ulthos]

FYI;

other monitors

-ASUS PB277

-ASUS VG249Q1R (X2)

-ASUS PG278QR

-ASUS VP248QGL-P

CPU:5900X

MOBO: ASUS RoG Strix x570-E

NVIDIA System Information report created on: 06/16/2023 10:06:18

[Display]
DirectX version: 12.0
GPU processor: NVIDIA GeForce RTX 3080
Driver version: 536.23
Driver Type: DCH
Direct3D feature level: 12_1
CUDA Cores: 8704
Resizable BAR Yes
Core clock: 1905 MHz
Memory data rate: 19.00 Gbps
Memory interface: 320-bit
Memory bandwidth: 760.08 GB/s
Total available graphics memory: 26579 MB
Dedicated video memory: 10240 MB GDDR6X
System video memory: 0 MB
Shared system memory: 16339 MB
Video BIOS version: 94.02.42.00.D6
IRQ: Not used
Bus: PCI Express x16 Gen4
Device Id: 10DE 2206 87AC1043
Part Number: G132 0030