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 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 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 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 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 Share on other sites More sharing options...
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