Can't enable RE-BAR in my bios

[Arukādo]

Hello guys, I need some help regarding the re-bar option, I can't find it in my bios (under the Advanced tab).

BIOS photo: https://pasteboard.co/DRt4a0AYAIEa.jpg

I have an NVIDIA GeForce RTX 3080 and my computer is an Alienware Aurora Ryzen Edition R10.

I can't find the "4G decode" option either in the bios, and this is what GPU-Z says about the Resizable bar on my system:
https://gpuz.techpowerup.com/23/04/29/9gy.png

I updated the nvidia driver, the bios driver, the vbios driver, everything I could.
Thanks in advance for your reply!

------------------
System Information
------------------
Time of this report: 4/29/2023, 18:21:55
Machine name: GESSHOKU
Machine Id: {066C821B-80E9-4A08-8A0C-05C69A2876B4}
Operating System: Windows 10 Famille 64-bit (10.0, Build 19045) (19041.vb_release.191206-1406)
Language: French (Regional Setting: French)
System Manufacturer: Alienware
System Model: Alienware Aurora Ryzen Edition
BIOS: 2.4.1 (type: UEFI)
Processor: AMD Ryzen 9 3900X 12-Core Processor (24 CPUs), ~3.8GHz
Memory: 32768MB RAM
Available OS Memory: 32694MB RAM
Page File: 6766MB used, 30791MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 12
DX Setup Parameters: Not found
User DPI Setting: 96 DPI (100 percent)
System DPI Setting: 96 DPI (100 percent)
DWM DPI Scaling: Disabled
Miracast: Available, no HDCP
Microsoft Graphics Hybrid: Not Supported
DirectX Database Version: 1.0.8
DxDiag Version: 10.00.19041.2075 64bit Unicode

[Arukādo]

Now Dell tells me to buy a software support for 60 euros, I just wanted a clear answer on the issue but it seems they don't want to give it. I'm pretty sure this is the BIOS issue and their latest BIOS just doesn't have the option included.

[Illusion of Progress]

Have you tried asking on the Dell community forums? I had a number of Dell systems through the years, and that community was never anything but helpful whenever I needed an answer to something. Though my "newest" Dell system is an old OptiPlex 380 so it's been a long time since I've really been there. But if it's anything like it was back then, then if you luck out, someone will see and respond to a question there on if that system has BIOS that supports the feature. You'd have a much better chance of the people there knowing that than you would on any other tech community IMO.

I'm also a bit surprised it wouldn't be documented whether it does or doesn't support it (or maybe the lack of mentioning it could be taken as though it doesn't).

[Arukādo]

Illusion of Progress님이 먼저 게시:

Have you tried asking on the Dell community forums? I had a number of Dell systems through the years, and that community was never anything but helpful whenever I needed an answer to something. Though my "newest" Dell system is an old OptiPlex 380 so it's been a long time since I've really been there. But if it's anything like it was back then, then if you luck out, someone will see and respond to a question there on if that system has BIOS that supports the feature. You'd have a much better chance of the people there knowing that than you would on any other tech community IMO.

I'm also a bit surprised it wouldn't be documented whether it does or doesn't support it (or maybe the lack of mentioning it could be taken as though it doesn't).

Thanks for your answer.
I will indeed try the Dell forums if I don't have any other reply here or from Dell.
I'm pretty sure my system can handle the feature, I saw other people online having the same card and processor using it. I just told Dell about the BIOS, it could affect any other person using the same Alienware without them knowing about it (not everyone is aware of this feature's existence).

[Bad 💀 Motha]

Arukādo님이 먼저 게시:

Now Dell tells me to buy a software support for 60 euros, I just wanted a clear answer on the issue but it seems they don't want to give it. I'm pretty sure this is the BIOS issue and their latest BIOS just doesn't have the option included.

Well it's not really up to them to answer hardware / software support questions if your Dell/Alienware warranty has expired. That's kind of how that all works.

Go to dell.com/support website and enter your Dell Express Service Code. Once that identifies your actual model of system, look at the support section for it. There should be a forums/discussions area for that model