MarvZheng Posted April 14, 2021 Share Posted April 14, 2021 (edited) 4790K + Z87-C. iGPU HD4600 is disabled in motherboard BIOS. I just got a new DELL GT730 with dual DP ports. Connected 2 DP ports at the same time with my DELL UP2715k, it works well on Win10 with 5k resolution. But with Big Sur, 5k doesn't work, it looks quite weird on color & resolution, not at 5k. I tried to switch to single DP1 or DP2, they works well at 4k resolution. Previously I use AMD card, boot with agdpmod=pikera and everything is done. I did the same but it shows a black screen after it finishes the process bar before entering onto desktop. I can fell that system booting is complete but just black screen. Edited April 14, 2021 by MarvZheng Link to comment https://www.insanelymac.com/forum/topic/347402-gt730-gk208-b-for-big-sur-on-dell-5k-monitor/ Share on other sites More sharing options...
MarvZheng Posted April 14, 2021 Author Share Posted April 14, 2021 35 minutes ago, Hervé said: Afaik, max. resolution supported by Kepler GK208B GeForce GT730 is 4K 3840x2160 (@24 or 30Hz over HDMI and should be @60Hz over DP). I don't believe it supports 5K resolution unless it's a specific feature of that Dell card but I'd be surprised with this type of cheap entry-level cards and it'd pretty much be unique... With apps such as SwitchResX, you may be able to create a fake 5K resolution but it'd just be a software arrangement, not a real and native resolution of course I guess Dell made a different because on Win10 I did find it work at 5k resolution. The output performance are just same with what I have seen with RX570 before. This GT730 comes with 2DP ports, GDDR5, 2G RAM; the specification is higher than ordinary old GT730? Link to comment https://www.insanelymac.com/forum/topic/347402-gt730-gk208-b-for-big-sur-on-dell-5k-monitor/#findComment-2755520 Share on other sites More sharing options...
yapan4 Posted April 14, 2021 Share Posted April 14, 2021 (edited) Now you can sell W5000+W7000+GT730 and buy a newer one P.S. Try to update the firmware, especially if you have UEFI boot. Edited April 14, 2021 by yapan4 Link to comment https://www.insanelymac.com/forum/topic/347402-gt730-gk208-b-for-big-sur-on-dell-5k-monitor/#findComment-2755526 Share on other sites More sharing options...
MarvZheng Posted April 14, 2021 Author Share Posted April 14, 2021 49 minutes ago, yapan4 said: Now you can sell W5000+W7000+GT730 and buy a newer one P.S. Try to update the firmware, especially if you have UEFI boot. Actually I do have a newer one - Powercolor R9 280X 3G. This meets all my requirement (also dual mini DP to achieve 5k output on DELL up2715k) but I am just interested in trying GT730 since it's cheap and have dual DPs while the seller claimed that it supports dual DP for 4k@60hz each - money back guarantee. I guess this time I should have my money back if I can't settle that in a few days. I have tried hard but.... For UEFI, no need to update. This card already supports UEFI OOB. Link to comment https://www.insanelymac.com/forum/topic/347402-gt730-gk208-b-for-big-sur-on-dell-5k-monitor/#findComment-2755532 Share on other sites More sharing options...
MarvZheng Posted April 14, 2021 Author Share Posted April 14, 2021 25 minutes ago, Hervé said: You tell us, you're the one who bought the card! Good luck to me on my coming endeavor! 1 Link to comment https://www.insanelymac.com/forum/topic/347402-gt730-gk208-b-for-big-sur-on-dell-5k-monitor/#findComment-2755533 Share on other sites More sharing options...
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