Custom Resolution Utility (CRU)

[madmanmarz]

(11-30-2013 04:11 AM)ToastyX Wrote:  

(11-27-2013 08:18 AM)madmanmarz Wrote:  Hi, noob here. I have an HP 23BW monitor (seems to be the same as the 23xi, which is confirmed at 75hz). I currently have an AMD 7850, soon to be an R9 270. What would be the easiest solution to overclock this thing the best way?

1 - I understand single link DVI and HDMI are limited, but is that still the case for a modern GPU with a good v1.4 HDMI cable?
2 - I understand that I can patch the drivers but I update my drivers a lot and would prefer not to have to patch them every time. Would I be best off going with a dual-link DVI cable?
3 - Also I have an HDMI to DVI cable and all the pins are filled so it appears to be dual link, same goes with an adapter I have laying around, any problems using one of those?

You don't need to patch the driver to get 75 Hz if you use the "LCD reduced" timing option.

1. Some monitor + GPU combinations can get past 165 MHz pixel clock with HDMI with the extension block enabled or by importing this extension block: https://www.monitortests.com/hdmi.dat
2. A dual-link DVI cable won't make a difference with a single-link DVI monitor.
3. HDMI-DVI cables/adapters are always single link. The extra pins are dummy pins.

(11-27-2013 08:18 AM)madmanmarz Wrote:  Update 1: meh I tried both the single link DVI and HDMI cable with the patch and I was unable to achieve more than 75hz. On another note I WAS able to achieve 75hz on both HDMI and single link DVI (tested with 3 ufo tests)!!! ya can't beat dem free hz!!!

Update 2: Looks like the patch killed my video playback! I reinstalled my drivers and had a fuzzy screen at 75hz using single link dvi. Tried with HDMI @ 75hz without the patch and all is OK. Any reason why my video playback was nerf'd with the patch?

The video issues are listed in the main post for the patcher. What player are you using?

Fuzzy screen at 75 Hz can happen if a single-link DVI monitor is connected to a dual-link DVI port and you pass the 165 MHz limit without the patch, so the video card sends a dual-link DVI signal that the monitor can't handle properly.

Thanks =)

I'm confused about the extension block thing. Can you point me in the right direction?