Overclocking U2913WM

Talk about overclocking displays at a higher refresh rate. This includes homebrew, 165Hz, QNIX, Catleap, Overlord Tempest, SEIKI displays, certain HDTVs, and other overclockable displays.
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Wijkert
Posts: 6
Joined: 26 Jan 2015, 13:31

Overclocking U2913WM

Post by Wijkert » 26 Jan 2015, 13:55

Hi guys. First post on this forum. Wasn't able to register earlier, because of the spam filter issue. Have read most of the articles on this website and really like the topics that where discussed! I like to play most of my games at a 21:9 aspect ratio and would love to increase the smoothness.

I bought the U2913WM at the same time I bought my gtx Titan. Experimented a bit with the feature of display overclocking that Nvidia released with there drivers at the time. I got it up to 86hz, but the experience was so bad that I turned it off. It was not until I found this website a month or so ago, that I realized I had frame skipping issues back then. After further testing almost 2 years later, the overclock is stable at 76hz. Between 77 and 86hz I have frame skipping issues and at 87hz I get a blank screen. Would have loved to have run this panel at 75-76hz the last couple of years, but oh well. You don't know what your are missing until you start using it, just like ssd vs hdd.

I have a couple of questions:

1. Would changing the timings give me a higher stable overclock? If yes, does anyone on this forum also have a U2913WM (or maybe similar panel) that can give me some pointers?
2. I have made custom resolutions for 72hz, 75hz and 76hz. When a video runs at either 24 or 25 fps, I switch to 72 and 75 hz respectively. The playback seems a little bit smoother. Do you guys think it is worth to switch between different refresh rates for this purpose? Also, is there any other way to switch between refresh rates faster then selecting them in the Nvidia control panel?
LG 34UM67; GeForce Titan 1058mhz/1700mhz; 2500K 4.4ghz / D15; 8GB Ripjaws 1600mhz; Z68X-UD3H-B3; AX860; 750GB 840 EVO; 1.5 WD Green and 3.0 WD Red; Teufel Concept D 500; Sennheiser HD595; Windows 8.1

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masterotaku
Posts: 436
Joined: 20 Dec 2013, 04:01

Re: Overclocking U2913WM

Post by masterotaku » 27 Jan 2015, 09:10

Wijkert wrote: 1. Would changing the timings give me a higher stable overclock? If yes, does anyone on this forum also have a U2913WM (or maybe similar panel) that can give me some pointers?
I don't have your monitor, but I never had frame skipping issues with the others. Changing timings helped me achieve many things that didn't work previously. Trial and error.
Wijkert wrote:Do you guys think it is worth to switch between different refresh rates for this purpose?
Always. Judder is so annoying...
Wijkert wrote:Also, is there any other way to switch between refresh rates faster then selecting them in the Nvidia control panel
You can also do that in Windows, but it requires more clicks. The most annoying wait is the black screen time when you switch refresh rates. If it were instantaneous... :o
CPU: Intel Core i7 7700K @ 4.9GHz
GPU: Gainward Phoenix 1080 GLH
RAM: GSkill Ripjaws Z 3866MHz CL19
Motherboard: Gigabyte Gaming M5 Z270
Monitor: Asus PG278QR

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Wijkert
Posts: 6
Joined: 26 Jan 2015, 13:31

Re: Overclocking U2913WM

Post by Wijkert » 27 Jan 2015, 11:44

masterotaku wrote: I don't have your monitor, but I never had frame skipping issues with the others. Changing timings helped me achieve many things that didn't work previously. Trial and error.
Interesting. What settings would you recommend changing first (ie front porch, sync width etc)?
masterotaku wrote: You can also do that in Windows, but it requires more clicks. The most annoying wait is the black screen time when you switch refresh rates. If it were instantaneous... :o
Yes indeed. Getting used to the 'left arrow' then 'enter' combo... ;) Still the black screen though.
LG 34UM67; GeForce Titan 1058mhz/1700mhz; 2500K 4.4ghz / D15; 8GB Ripjaws 1600mhz; Z68X-UD3H-B3; AX860; 750GB 840 EVO; 1.5 WD Green and 3.0 WD Red; Teufel Concept D 500; Sennheiser HD595; Windows 8.1

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