Overclocking your LCD monitor

[AkumaX]

Anyone else own this monitor? Standard specs are 1440x900 @60hz. however, using PowerStrip, I bumped it to 70hz. How safe you think this is?

 

[Throwmeabone]

overclocking your monitor..sigh

 

[Ctrackstar126]

 

[MustangSVT]

go learn how LCD works and come back.

 

[sxr7171]

Originally posted by: MustangSVT
go learn how LCD works and come back.

Ditto.

 

[Polish3d]

Speaking of this, is it possible to overclock the remote control for my Z680's ????

 

[CP5670]

I overclocked my hard drive yesterday from 200GB to 400GB. It needed a lot of extra voltage and some active cooling.



Seriously though, if the monitor lets you use the setting at all, it shouldn't cause any problems. Some people say you get smoother mouse movements at higher refresh rates.

 

[JBT]

The only useful thing that OCing your monitor does that is useful is to allow you to have vsync at a highier level So when it halves it goes to 35 instead of 30 its actually quite useful for those of us who like vsync enabled....

 

[TheRyuu]

So, what monitor you have/what are the specs for refresh rates?

 

[hans007]

i've seen people do that on crts and break their monitors over time. the photon gun would overheat and die on cheaper ones.

on an lcd i have no idea. if it is DVI it really doesnt matter what you run it at, the hz rating doesnt matter for dvi.

 

[xtknight]

This is a myth..."Refresh rates don't matter on an LCD or on DVI"

The vertical refresh rate on an LCD dictates how many frames it can display per second at maximum.

ViewSonic VA1912wb
MaxRes: 1440x900
Fh: 30~82kHz, Fv: 50~85Hz

VertHz=HorizHz/HorizLines * 0.95
VertHz=82000/900 * 0.95
VertHz=86.55 Hz (Fv capped->85 Hz)

Your LCD should be able to run up to 85 Hz (vertical frequency). However be aware that running that high just puts more stress on the electronics. You could notice more response time artifacts as well if your monitor doesn't have an "overdrive look-up table" for that refresh rate (for syncing to the crystals).

This is what happens there: http://www.xbitlabs.com/articles/other/display/response-compensation_13.html

http://www.tftcentral.co.uk/articles/overdrive_at_75hz.htm

For DVI, the maximum limit is 165 MHz (that's if the video card's TMDS transmitter is fully compliant and all).
1440x900x85 Hz = 110.160000 MHz

Looks like you're fine on that aspect. With VGA, quality will just decrease. I recommend you set it at 75 Hz just to avoid stressing the electronics at 85 Hz but 75 Hz should definitely be fine. But your monitor's DSP might not support scaling 75 Hz down to 60 Hz so that could also be another reason. With specs that high, it probably can run at 75 Hz just fine.

 

[hans007]

well what i mean is that on a crt the refresh rate is needed because a photon gun needs to repaint the screen at rate X hz.


with lcds, if a pixel is currently green it just stays on. it doesnt need to be relit 75 or 85 times a second.

if you want to exceed the max frame rate then just turn vsync off.