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NVIDIA Pixel Clock Patcher
09-06-2014, 12:04 PM
Post: #321
RE: NVIDIA Pixel Clock Patcher
(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.
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09-09-2014, 10:41 PM
Post: #322
RE: NVIDIA Pixel Clock Patcher
(09-07-2012 09:07 PM)ToastyX Wrote:  NVIDIA Pixel Clock Patcher modifies the NVIDIA video driver to remove the 330 MHz pixel clock limit for dual-link DVI and the 400 MHz limit for SLI and 400/500-series GPUs.

https://www.monitortests.com/nvlddmkm-patcher-1.2.6.zip

If you find this software useful, donations are welcome.

Requirements:
  • Windows Vista or later
  • 400-series GPU or newer
Compatibility:
  • Version 1.2.6 is compatible with 304.48 to 340.65. It can be used with future versions if it finds all the limits.
  • Test mode is not required anymore. Test mode can be disabled using this: testmode.zip
Getting started:
  1. Run nvlddmkm-patcher.exe. (Catleap/Tempest/QNIX/X-Star users with SLI or 400/500-series GPUs: run nvlddmkm-patcher-full.exe instead.)
  2. If all limits are found, click "Yes" to patch and sign. If a limit is not found or if multiple matches are found, the patcher needs to be updated.
  3. Reboot.
You can then add higher refresh rates using the NVIDIA Control Panel or Custom Resolution Utility (CRU).

To restore the unpatched driver, run the patcher again and click "Yes" to restore from backup.

Known issues:
  • The full patch breaks HDCP support. It is only needed if the pixel clock is greater than 400 MHz with SLI or 400/500-series GPUs.
  • Titan and GTX 780 cards do not need the full patch for SLI.
  • NVIDIA cards will not reduce clock speeds when idle if the vertical blanking/total is too low.
  • 400/500-series cards will not reduce clock speeds if the pixel clock is greater than 404 MHz.
Recent changes:
  • 1.2.6: Updated for 337.50. Fixed SL-DVI/HDMI limit for 64-bit. Fixed SLI limits for 32-bit.
  • 1.2.5: Updated for 334.67. Fixed SLI limit.
  • 1.2.4: Fix restore from backup for 32-bit (64-bit not affected).
  • 1.2.3: New SLI limit found.
  • 1.2.2: Removed SL-DVI/HDMI check false positive for 64-bit.
  • 1.2.1: Updated for 331.40. Fixed SLI limit.
  • 1.2: Test mode no longer required.
  • 1.1.6: Updated for 326.01. Fixed SL-DVI/HDMI limit for 64-bit. Changed SL limit on DL-DVI.

Hello,
I'm in search of finding a fix to the Gsync/SLI stuttering issue.

I have no stuttering issues with SLI when it comes to Vsync off/on

Only have this issue with Gsync. Does your pixel patch help with this and does it work with Display port?

thank you!
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09-10-2014, 03:30 AM
Post: #323
RE: NVIDIA Pixel Clock Patcher
(09-09-2014 10:41 PM)Hitman_Actual Wrote:  Only have this issue with Gsync. Does your pixel patch help with this and does it work with Display port?
No.
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09-19-2014, 01:39 PM
Post: #324
RE: NVIDIA Pixel Clock Patcher
Works without any issues with the new 344.11 driver release (on Windows 8.1 x64).
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09-19-2014, 04:18 PM
Post: #325
RE: NVIDIA Pixel Clock Patcher
Anyone tried using these for the new 344.11 drivers? The SLI Limit 2 value was not found and could not be patched.
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09-21-2014, 12:29 PM
Post: #326
RE: NVIDIA Pixel Clock Patcher
Anyone?
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09-21-2014, 01:40 PM (This post was last modified: 09-21-2014 01:41 PM by RealNC.)
Post: #327
RE: NVIDIA Pixel Clock Patcher
(09-21-2014 12:29 PM)sourkimchi Wrote:  Anyone?
I don't want to repeat myself.
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09-21-2014, 02:10 PM
Post: #328
RE: NVIDIA Pixel Clock Patcher
(09-21-2014 01:40 PM)RealNC Wrote:  
(09-21-2014 12:29 PM)sourkimchi Wrote:  Anyone?
I don't want to repeat myself.

Sorry I did read your post but did not quite answer my question. So im guessing by your reply we dont need the SLI Limit 2?
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09-22-2014, 06:39 PM (This post was last modified: 09-22-2014 06:55 PM by sephr.)
Post: #329
RE: NVIDIA Pixel Clock Patcher
Does the patch completely work for 344.11 SLI?
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09-24-2014, 11:33 AM
Post: #330
RE: NVIDIA Pixel Clock Patcher
The patch doesn't work at all with the 344.16 drivers (for Geforce 970/980).
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