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[CRT] SyncMaster 753s

post #1 of 5
Thread Starter 
So i got this crt and it looks really nice on the desktop [1280x960 at 60hz] , but on csgo i have to play on 800x600 in order to get 117hz and it just looks awful, i have trouble seeing at long distances, the game has blur and i cant notice the crosshair color on white materials like walls,boxes, etc...


I used nvidia in order to create a custom resolution could be it? Because if i play 800x600 at 85hz wich is a factory resolution it looks clean and nicely mad.gif
post #2 of 5
Thread Starter 
anyone could help me?
post #3 of 5
No one can help you because you're exceeding the specifications for that screen.
800x600@117hz puts you right past the horizontal scan limit of that screen.
So you cant do higher at 1280x960@60 hz

You may be able to get 1280x960@72hz or 75hz with manual timings.
Edited by Falkentyne - 10/16/15 at 1:47pm
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post #4 of 5
Thread Starter 
Quote:
Originally Posted by Falkentyne View Post

No one can help you because you're exceeding the specifications for that screen.
800x600@117hz puts you right past the horizontal scan limit of that screen.
So you cant do higher at 1280x960@60 hz

You may be able to get 1280x960@72hz or 75hz with manual timings.

What do u mean?

the Horizontal Refresh Rate is 70 kHz but i dont think it matters since it comes with a Factory Preset Resolution Mode at 800 x 600 / 109 Hz

Sorry for being a newbie xD
post #5 of 5
CRT's are limited more by their horizontal scan rate rather than their vertical refresh rate, as they are analog devices.
A CRT with a max horizontal scan rate of 128 kHz can do 1600x1200@ 100hz refresh rate and may be capable of 2048x1536 @ 75 hz.
Your CRT has a horizontal scan rate of 70 kHz or 75 khz, which limits what it can operate at. You may be able to exceed the limits slightly but this usually comes at the cost of image quality, if you don't get an out of scan range error.

*REALLY* Old CRT's would actually physically explode (not like a bomb) as there were no cpu safety limits to exceeding the scan range. Those were the ones that would give you a scrambled screen if you went too far. Go even farther and...hello magic smoke !

Your 800x600 setting you listed isn't a default setting. It's the 'maximum' supported setting by the specifications.
800x600@109 hz puts you right at 69.981 kHz horizontal scan range, which is close enough to 70 kHz.

You may be able to exceed 70 kHz slightly but you get loss of image quality.

You should be able to make a CUSTOM resolution of 1280x960 @ 70 hz.
This puts you right at 70 kHz scan range which should not lead to any quality loss.

You can do it with ToastyX CRU, and use "Automatic: CRT Standard" timings under Detailed Resolutions.

http://www.monitortests.com/forum/Thread-Custom-Resolution-Utility-CRU

If you don't get a blank screen or an out of range error, 1440x1080@60hz SHOULD also work.
Edited by Falkentyne - 10/16/15 at 4:52pm
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