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July 16th, 2018 03:00

AW3418DW, flickering at 115Hz and 120Hz, #1

Hiya,

I received my monitor about 3 weeks ago. It worked flawlessly for about 2 weeks without a problem. But in the last few days the screen flickers very slowly at 115Hz and 120Hz. It works at 110Hz and lower. I have performed a factory reset and tried updating the firmware on my Nvidia GeForce 1080 Ti but nothing works. 

Any ideas or should I request a RMA?

Jonathan.

6 Posts

July 26th, 2018 04:00

Just a quick update to say all fixed now with new replacement. Fingers crossed it doesn’t reappear. 

Just waiting to hear back to arrange returning the faulty unit.

Thanks for for your help.

Jonathan.

6 Posts

July 16th, 2018 06:00

Thanks Chris I will do all those things you mentioned later and see what happens.

 

Jonathan.

Community Manager

 • 

54.2K Posts

July 16th, 2018 06:00

 

This should be your physical setup =
Nvidia GeForce GTX video card DP out port --> AW3418DW DP to DP cable --> AW3418DW DP in port

Install the latest Nvidia WHQL driver. Enable G-Sync =
* Uninstall GeForce Experience
* Restart the PC when done
* Download/Save the latest Nvidia WHQL driver to your Windows Desktop
* Right click the file and select "Run as administrator"
* Click OK
* Click Agree and Continue
* Click Custom (Advanced)
* Click Next
* Check the following =
Graphics Driver
3D Vision Controller Driver
3D Vision Driver
HD Audio Driver
PhysX System Software
Perform a clean installation
* Click Next
* When done, click Restart Now

Enable G-Sync in the Nvidia Control Panel
* Right click on the Windows desktop and select "NVIDIA Control Panel" or launch the "NVIDIA Control Panel" application from your Start menu
* Open Display
* Click Setup G-Sync
* Check Enable G-Sync
* Insert the dot to, "Enable G-Sync for windowed and full screen mode"
* Click Apply
* Under 3D Settings, click Manage 3D Settings
* Highlight Monitor Technology
* Choose G-SYNC
* Click Apply
* Close the the Nvidia Control Panel

* Press the AW3418DW Menu Key
* Check Overclock On
* Go to Others
* Display Info should shows "Mode: G-SYNC"

AW3418DW supported DP resolution and Hz =
3440x1440 50Hz
3440x1440 60Hz
3440x1440 85Hz
3440x1440 100Hz
3440x1440 115Hz not native
3440x1440 120Hz not native


The AW3418DW/AW3418HW native manufacturer refresh rate is 100Hz. For Dell to troubleshoot, you must set the refresh rate to 100Hz. Using any Hz above 100 could show flickering.

The online User's Guide page 39 states =
"Allows you to operate the monitor at a higher refresh rate than specified by the panel specification."

flickering.JPG

The online User's Guide page 40 states =
"Overclocking may cause screen flickering. To reduce such effects, try to setting a lower refresh rate."

Flickering2.JPG

6 Posts

July 16th, 2018 09:00

Hiya Chris I tried all your suggestions but to no avail, still flickering at 115Hz and 120Hz. 

Thanks for your input.

Jonathan.

Community Manager

 • 

54.2K Posts

July 16th, 2018 09:00


* From whom was this purchased?
* What is the 20 digit S/N?
* Post some videos showing us all of the Hz, both working and flickering
* Test all of the 1080 DP out ports

6 Posts

July 16th, 2018 10:00

 

Bought direct from Dell U.K.

Serial number - 

CN-0CKM2N-QCD00-84U-03WL-A04

 

Tried all DP outputs - no change.

 

sorry unable to post vid as format not supported and not 100% how to do it.

 

Community Manager

 • 

54.2K Posts

July 16th, 2018 11:00

 

Built on April 30, 2018. Is there another PC with Nvidia video card to test on?

On that PC, is it flickering on the Windows desktop? Or just in certain games? If only in games and not the Windows desktop, which specific games?

6 Posts

July 16th, 2018 11:00

No I don’t have another PC or graphics card unfortunately.

No it flickers on the desktop and games. 

Not sure what else to try.

Community Manager

 • 

54.2K Posts

July 17th, 2018 06:00

 

Read this. If the replacement does not have the issue, return the original to Dell. If the replacement has the SAME issue, the fault was NOT with the original AW3418DW. Return the replacement to Dell. Look to the PC as the culprit.

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