NVIDIA Pixel Clock Patcher

[ToastyX]

(09-05-2014 02:29 PM)Ludamister Wrote:  I'm using a ViewSonic VX2270SMH-LED. Three of them in Nvidia Surround. Two of them use DVI-D while one uses HDMI. I can overclock the HDMI to 75hz natively while the other two can only go up to about 66hz. I'm not sure if it's because of the cables or what not.

All that said, will this patch allow me to reach higher hz?

The ViewSonic is a single-link DVI monitor. DVI switches from single-link to dual-link at 165 MHz pixel clock, which ends up being around 66 Hz if you didn't change the timing parameters. The patch raises that switchover limit to 230 MHz, so you should be able to get higher refresh rates if the monitor can handle it. HDMI is always single-link, which is why it works without patching.

(09-05-2014 02:29 PM)Ludamister Wrote:  Does my ViewSonic brand going to affect the results since most of what I'm seeing are the Korean brands like Catleap, etc.? Should I opt for different cable setups?

The patch was originally intended to get around dual-link DVI limits for the Korean monitors, but then I added support for single-link DVI and HDMI to make it useful for other monitors.