Ok I will look at them

the facts:

  1. DDR4 3200@16-18-18-36 + 1060 (GDDR5) = good
  2. DDR4 3200@16-18-18-36 + 2070s (GDDR6) = you have to be patient
  3. DDR4 3200@22-23-23-53 + 2070s (GDDR6) = not paper but dont need patient
  4. DDR4 3200@16-18-18-36 + 3080 (GDDR6X) = bad
  5. z690 DDR4 3200@16-18-18-36 + 3080 (GDDR6X) = bad

win10 share RAM memory with GPUs. Perhaps, very different GPU and RAM memory speed/timings cause strain.

  1. How to determine GPU timings to adjust RAM closer, to check theory?
  2. How to disable GPU ability to eat/share RAM ?
  • qb74 replied to this.

    qb74 MemTweakIt

    Current ?safe? timings determined by MB

      simplex
      Would you be able to list your whole PC hardware setup (peripherals included) and software stack? (GPU driver, windows version) i'm blind, uve done so in OP
      Which power supply are you using? Are you still using the hardware you've specified in OP? Which peripherals are you using?
      When was the last time you reinstalled your OS cleanly?

      GPU DRAM Timings have long since been locked down on Nvidia side.

          qb74 Which power supply are you using?

          before z690 sold, I tried another 750w PSU, then my 500w PSU which currently works with z390d - nothing change

          OS installed in feb.2024 with blocked updates, 2x sata SSD + GPU + 1x m2 SSD available only

          moonpie which can kick in VRR more often

          in my BIOS (2019y), OS (2020 may), drivers (mid of 2021) - there is no VRR

          It would be joke if DDR5@4800 dont have such things. Last laptop I tested was huawei d16 2024 with 13900h and IRIS xe (same as in mini-PC) but caused me strain after 20 min. Laptop also used OC ram - DDR4X @ 4266mhz

              moonpie wow I didn't know this. I remember someone a long time ago here said that running a system in 32bit mode or single channel ram would help strain which he thought was due to certain directX stuff not being enabled under those conditions.

                moonpie That's good to know. I'm assuming that applies to arc gpus too? I'll share this with someone I know who has issues with xe.

                  a month later

                  Guys, need advice.

                  My current safe asus laptop has lp173wf4-spf3 panel which I use at 80% brightness. After 11k hour of usage, it lost red color and got blue-green tint, so finally I found exact same new panel - lp173wf4-spf5. But first time I replaced it, I feel…. eye-strain ( not headache )

                  I measure it with Opple4 and found it has same modulation % depth and same brightness at 61% of brightness, keeping same results I have at 80% in spf3

                  spf3 at 80%

                  spf5 at 61%

                  spf3 at 90%

                  spf5 at 90%

                  Despite of spf5 have DC dimming, trinagles told it have ~1000hz smoothed PWM (4 triangles in 4 ms period)

                  Using same logic, spf3 have ~200hz PWM

                  The question is, is it possible to adapt for new panel? If I wait more few days, I can loose return period.

                  Each moment I tried to use SPF5, felt slight burning in the eyes, brghtness level doesnt matter. When I replace panel to SPF3, all became good instantly. Is is my nervous adaptation to the old panel that I have been using since 2018?

                  p.s. panels use same EDID. Datahseets told they 99% equal (same PWM freq limits and duty ratios, contrast, colors etc)

                  SPF3 v-com 2 images, play in circle to find pixel inversion type: 2 pixels shift horizontally by 2 pixels: img1, img2

                  SPF5 v-com 2 images, play in circle to find pixel inversion type: dot (chess) inversion, 1 pixel shift horizontally by 1 pixel: img1, img2

                  The only one change, similar to monitors I tested last summer, were dot (chess) pixel inversion in SPF5. I also was not able to use screens with such inversion type (they were IPS, VA, DC current with different "smoothed" PWM freq according to opple4, but all of them had "dot chess inversion")

                  8 days later

                  simplex This is amazing what you are showing here .You just set the monitor at 45hz and you get this still image? I will try and see if that helps with my dizzines symtoms ..I also always feel that hdmi 144 feels better than dp 165 on my dell g3223d could their be differrences or not ? What is the solution of having both higher than 60 hz and also having a perfectly still image ?

                      gregtsakil9 You just set the monitor at 45hz and you get this still image?

                      Yes, in that monitor (xiaomi mi 27 2k) the v-com pattern activates at 46+ hz, but not sure its has same freq in your monitor…

                      TBH, same feelings I got - 144 at HDMI was better than 165 via DP, then I tried to clean EDID ( restrict to Windows to make extra color-convertinon, coz EDID had extra gamma curve which made image mode brighter and contrast )

                      Try to set 45hz, then 30hz via CRU to feel difference. Then try to experiment with EDID settings

                      p.s. the fact I found a bit after this post regarding 45hz - all extra color convertion in win10 also gives strain. Avoid ICM profiles and monitor's extra gamma settings writed in EDID (via CRU) - let win10 make its grapfic pipeline in Default colorspace, without convertions

                          simplex thank you for the info but i cant fully understand what it is to do could you give a better explanation of the settings that you use? and how me and also other people could try

                              dev