Question Help with 5800x - Resizable BAR/Smart Access Memory - Upcoming Intel ARC a770/AMD 7000 series.

davedavidson1987

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Oct 18, 2011
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I have a ASrock Pro 4 X570, with a GTX 1080 and a Ryzen 5800x.

I'm looking into getting a new GPU, and I've read that too get the best performance possible I need to have the ability to enable "Resizable Bar/Smart Access Memory".

I've updated my BIOS to the latest version and the option is now there.

This is potentially where the stupid question is going to be asked. I enabled it with my current setup (the GTX 1080), just to test it even turns on, but now I'm getting 5 error beeps on computer start up and a second reboot before windows finally loads.

I realise the 1080 does not support Resizable Bar, but would that stop it from booting properly if I enabled it, or is my Motherboard pooped??

Thanks in advance for any help given.
 
Since it boots I imagine the board is fine it may just be your card. What gpu are you looking at? Even without resizable bar/smart access memory you should still get good performance. From what I’ve seen forza seems to love it but other games, some don’t give many gains, some a bit. So I’d say worry about it when you get a card. One catch though, if you are looking at the new Intel gpus, I think those require Intel 10th generation or higher, and maybe some ryzen 3000 series or higher with that feature enabled. Not sure then exactly how they’d play in a board like my b350(though I’m running a 5900x and smart access memory) or your x470. So you may consider skipping the Intel cards.
 

davedavidson1987

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From what I've read I'm sure my X570 and 5800x is compatible.

What's baffling me is, even on 2 different BIOS versions if I enable Resizable Bar, it causes the weird 5 beep boot error, then reboot to windows.

I can't seem to find any information that suggests simply enabling it for a card that doesn't support it, should cause boot errors?

Isn't it just essentially removing a limit on the memory access speed?
 
I think it allows it to move larger blocks of data. I have it enabled on my 6700xt but I don’t have any experience on the nvidia side. But I’m guessing that the card you’ve got maybe has a hard time understanding what’s going on, hence the 5 beeps which I think indicates gpu issues if memory serves.
 

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