RX 480 + Samsung s23a700d HDMI

[A_Skywalker]

I just installed my new RX 480 with my old monitor Samsung S23a700d via HDMI. Before when I used dvi cable with my old video card I got 120 hz selectable in the display adapter option, now with HDMI and the new video card I can only select 60 hz in display adapter and in games.
Any idea why is this?

 

[coercitiv]

From your monitor's user manual (p.74):

(DVI) 1920 x 1080 @ 50, 1920 x 1080 @ 60, 1920 x 1080 @ 100, 1920 x 1080 @ 120
(HDMI) 1920 x 1080 @ 60, 480p, 720p, 1080i, 1080p

 

[Flapdrol1337]

Yeah, you need to use dvi for 120 Hz.

Best return that 480 if you can, and get an aftermarket card with dvi port when they're available.

 

[Zstream]

Why not get a DP-> DVI adapter ?

 

[Krteq]

RX 480 have a DP->DVI adapter in a box.

 

[Zstream]

RX 480 have a DP->DVI adapter in a box.

My Diamond 480 did not include any adapters.

 

[Flapdrol1337]

You'd need an active adapter for dual link dvi. Somewhat expensive, but I suppose it's worth it if the card can't be returned.

Or use this as an excuse to upgrade the monitor

 

[A_Skywalker]

Well, Thank you for the comments, yes, it seems its onlt 60 hz with hdmi. Actually it doesnt matter so much as I crank the games to the highest possible settings so I stay around 50-60 fps. I prefer quality of the picture than high fps.

And there was no adapter inside in my Saphire RX 480.

 

[Stuka87]

RX 480 have a DP->DVI adapter in a box.

As far as I know only the more expensive XFX came with an adapter. And thats only for single link HDMI to DVI.

 

[Madpacket]

A lot of early 120/144hz monitors only accepted dual link DVI to drive those refresh rates. While I agree DVI is kind of a silly port these days, there's still a large demand for it so not including a port on the reference card (or ensuring an active adapter is included) is a bit of a kick in the nuts.

 

[Bacon1]

You have three options, be limited to hdmi, buy an expensive adapter (you need the active, usb $90ish one), or return the card and buy one of the after market ones that come with DVI port.

I'd go with option 3 assuming you are happy with the card performance. The custom boards will also have better coolers and will likely perform better, but might be an extra $10-20.