75 HZ BLURRY

[callofjustices]

I had a gtx 460se , upgraded to a asus gtx 770 .

On the SE i was able to go to 75hz without anything being blurry but on the 770 its so BLURRRRY NOW ??

[Electronics Wizardy]

What do you mean by blurry. 

[burnttoastnice]

Are you using a VGA cable? Consider upgrading to HDMI/DP or something

[mariushm]

Cheaper RAMDAC (the circuitry that converts digital signal to analogue to make the vga signals available), maybe more radiated emi from the video card affecting the cheap vga cable you may have.

[callofjustices]

I have a dvi-i to vga  

[mariushm]

Yeah, the passive adapters only take the signal from various analogue pins in the DVI-I connector and rearrange them in the VGA connector on the other side.

The adapter doesn't convert digital to analogue, the signal is converted to analogue on the video card and put on some pins of the DVI-I connector.

 

[Sihastru]

Did you try to use the AUTO ADJUST setting on the monitor? There are PHASE and SHIFT settings in the OSD that the monitor adjusts for every VGA signal (even minor changes can disrupt the signal). Probably not what's going on here, but I thought it needed to be mentioned, since VGA is so rare these days.