Custom Resolution Utility (CRU)

[ToastyX]

(06-18-2017 08:34 PM)suapmes Wrote:  So, I've been using this for a while to overclock my 1080p monitors. I got a new 4k freesync monitor and it lets me extend the freesync range lower, but if I try to go higher it just wont show up as an option for me. If I extend the freesync range above its default in the freesync thing on crimson it still says 34-60(60 being the default max), even though I set it to 73 as the max in cru.

The max is limited to the currently set refresh rate. It has always worked that way. FreeSync works by delaying the next refresh. It can't increase the refresh rate. You have to add the higher refresh rate if you want to extend the range.

(06-18-2017 08:34 PM)suapmes Wrote:  Same thing when I try just a normal overclock, I add the new refresh rate just like I always have in cru, but when I restart my pc so I can select it from the refresh rate drop down box it isnt there, just the standard 60 that the monitor shipped with. Am I doing something wrong/ did cru change how it worked from 1.29 to 1.3?

3840x2160 requires four times more bandwidth than 1920x1080. There isn't much room to go beyond 60 Hz with a 3840x2160 monitor. I don't think AMD currently allows more than 600 MHz pixel clock even though DisplayPort 1.2 should be capable of more.