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GT730 (GK208 B) for Big Sur on DELL 5k monitor


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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 by MarvZheng
  • MarvZheng changed the title to GT730 (GK208 B) for Big Sur on DELL 5k monitor

Is this a special version of the GT730 with official support for 5K over dual DP? Afaik, max. resolution supported by Kepler GK208B GeForce GT730 is 4K 3840x2160 (over HDMI or DP) but that's on any regular Kepler 2.0 GT730. That's the best I get on mine for sure (Asus GT730-2GD5-BRK).

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?

 

 

image.thumb.png.4932737f31bad09e92d8ed5a6e4591dc.png

53 minutes ago, MarvZheng said:

[...]

the specification is higher than ordinary old GT730?

[...]

You tell us, you're the one who bought the card!

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. 

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