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Anyone try overclocking their regular LCDs?

post #1 of 60
Thread Starter 
I just tried mine out of curiosity after hearing about the Catleaps and other brands and how they can overclock to 100+ HZ on some models. I wasn't really expecting anything at all, and I didn't get much, but I did manage to get my 5 year old KDS 24" 1920x1200 up to 70Hz. Only a small increase, nothing like the Catleaps, but still a free boost over the 60Hz standard. It's hard to tell the difference, but it does tend to feel a little smoother, though that could just be the placebo effect. Either way...

375

375

So anyone else without a Korean brand display try overclocking and care to share some results and monitor brand/model? Any tricks to getting more out of mine, I really had no idea what I was doing and just figured it out as I went...I don't really know what any of those manual settings are, but I do know that I had to change them to get 70Hz. Without manual settings, 1920x1200 would top out at 63Hz...
Edited by Aaron_Henderson - 4/23/12 at 12:28pm
post #2 of 60
wth.gif Is this thing for real?.. How exactly did you do it?
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post #3 of 60
interesting, wonder if it's possible to damage the lcd
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post #4 of 60
Thread Starter 
It's for real, and even greater, I just tried my 32" Insignia 1080P TV...and got 80Hz...I'm amazed, and in awe. Everyone go try this...the only drawback I have found so far is that it's tedious to find the right settings, and that on my TV, a small portion of about 12 pixels or so is cutoff. I am going to try fiddling with the settings some more to see if I can remedy it...then I am going to game on each one and take some screens with FPS overlay and see if I notice any improvement. Here's the settings I am using for the TV -

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As for damage, it's very likely possible, but my monitor is over 5 years old I believe, and my TV really never gets used for gaming anyway due to input lag compared to my monitor, but maybe the overclocking will help with that. I'll let you guys know if I notice any ill effects of the overclocking as soon as I notice anything.

Oh, and guys, if you try this, I would go up in 1 Hz increments, I'm not sure what would happen if you set your refresh far too high for your display, and take no responsibility if you damage it. Go slow, 1 Hz, by 1Hz, changing settings as needed. I would keep going up in Hz until you hit a dead end, and then lower the other settings a little, I tried to keep the ratios the same, if that makes sense. I didn't exactly break out the calculator or anything though. My TV actually topped out at 81 Hz, not 80 Hz, but I thought 80 was a more "stock" sounding number to round to.

And Ronnin426850, just use the settings shown in the screen captures if you have an Nvidia card, it's in the Control Panel under the resolution area, "Create Custom Resolutions" or something, can't miss it. Each LCD may be different, I am not entirely sure. If the settings are similar for screens with the same resolution, the first two screens are the settings for 1920x1200 LCDs, and the second two screens would show the settings for 1080p LCDs.

EDIT - Just ran a game, Sauerbraten as I know I can get practically unlimited frames with it, and took some screens, one for the 70 Hz KDS 24" 1920x1200, and the other for the 32" Insignia 1080p. So yeah, here they are...

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FPS in the lower right corner.

Too bad my netbook doesn't have an Nvidia GPU. I wonder if there is any way to do it with the Intel drivers...

Shocked at the near 100 views and only 2 comments...
Edited by Aaron_Henderson - 4/23/12 at 2:08pm
post #5 of 60
After reading this I decided to have a go in my laptop, the results where a bit suprising...

338
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post #6 of 60
Thread Starter 
Sweet pDimflAn, very nice results. Are you noticing any difference? Have you tried gaming yet? My TV definitely seems to be much more responsive, and games are running at the correct FPS...and really, if the Catleaps can do it, why couldn't other brands and models overclock as well? Care to screenshot your settings for us? Also, if you don't mind, could you fill out your system specs, or tell us the model of laptop you tried this on?
Edited by Aaron_Henderson - 4/23/12 at 2:28pm
post #7 of 60
Honestly I can't say I'm noticing any difference, I've tried to load a game max fps I got was 63 in fraps, gotta install an old game
Sure just tell me which settings you want.
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post #8 of 60
Thread Starter 
The settings under the "Create Custom Resolution" in the Nvidia Control Panel. And please share your hardware specs. If it's a low end laptop, try something like the Quake III Demo or something, that should get over 106 frames per second. Also, how did the overclocking go? What happened at 107Hz? Was it difficult to get to 106Hz?

Here's a link to the Quake III Demo if you want it just to test, it's under 50 MB -

http://www.gamershell.com/download_4291.shtml

There won't be much benefit of having a higher than 60Hz refresh rate on an LCD unless your getting more than 60 FPS in games, but I would still like to know your results. Also, make sure you have VSYNC on if you take any screenshots.
Edited by Aaron_Henderson - 4/23/12 at 2:46pm
post #9 of 60
Here are the settings
542

And here is Quake 3 @ 91fps
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About the overclocking, when I tried 107Hz the screen just went black for a while and no message saying the test was succesful appeared

edit:
I've created my laptop in the rigbuilder but I guess it isn't showing under my reply, is there anything that I need to change?
Anyway my laptop is a Compaq CQ60-150EM
Edited by pDimflAn - 4/23/12 at 3:06pm
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post #10 of 60
Thread Starter 
So did you even need to use the manual Timing settings at all then? If not, I bet you could take it even further by setting the Timing from Automatic to Manual. From your settings I see, I would try all the way down to something like this -

Horizontal / Vertical

Active Pixels - 1368 / 768

Front Porch Pixels - 12 / 2

Sync Width - 8 / 6

Total Pixels - 1408 / 788

Not saying those will work 100%, but from what I could gather, the lower you can go with these numbers, the higher you can go on the refresh rate. Something to do with the pixel clock I believe, but I'm not entirely sure how it works. Also, now with the game reaching higher FPS, have you noticed any difference at all? If you're not an avid gamer, you may not have. I am trying to get some verification that this is indeed working as I believe it is, so hopefully some others try this as well and share their experiences. Also, did you have the VSYNC settings on for that screenshot?

Oh, and to fill out your rig, it's not Rig Builder, I've never actually used that function so I'm not sure what it does. But if you click your username on one of your posts, it will take you to your profile, and then you scroll all the way to the bottom (I think) and there is some click-able text to the right that says, "Create new rig", or something similar.
Edited by Aaron_Henderson - 4/23/12 at 3:16pm
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