Resizable Bar not working.

Athlonite · Nov 24, 2022

Apolation said:
I have the same issue, I'm using a MSI RTX 3080 Gaming X Trio:
I'm using R7 5800x
MSI MAG b500m Mortar

View attachment 271456
View attachment 271457
View attachment 271458
View attachment 271460
Can someone help?

Early 3000 series cards didn't come with Rebar enabled in their VBIOS you need to get an updated one from MSI and flash it onto your GPU

Apolation · Nov 24, 2022

Athlonite said:
Early 3000 series cards didn't come with Rebar enabled in their VBIOS you need to get an updated one from MSI and flash it onto your GPU

I've downloaded from MSI's site, maybe one of the Tech's download?

izy · Nov 24, 2022

Apolation said:
I have the same issue, I'm using a MSI RTX 3080 Gaming X Trio:
I'm using R7 5800x
MSI MAG b500m Mortar

View attachment 271456
View attachment 271457
View attachment 271458
View attachment 271460
Can someone help?

You can check this:

Improve Performance with Resizable BAR. Now available for MSI GeForce RTX 30 Series graphics cards

Resizable BAR (Re-Size BAR) is an advanced PCI Express feature that enables the CPU to access the entire GPU frame buffer at once and improve performance. To enable Re-Size BAR on your MSI RTX 30 series graphics card you will need to update the vBIOS. Thi

www.msi.com

Apolation · Nov 24, 2022

izy said:
You can check this:

Improve Performance with Resizable BAR. Now available for MSI GeForce RTX 30 Series graphics cards

Resizable BAR (Re-Size BAR) is an advanced PCI Express feature that enables the CPU to access the entire GPU frame buffer at once and improve performance. To enable Re-Size BAR on your MSI RTX 30 series graphics card you will need to update the vBIOS. Thi

www.msi.com

It fixed! Thanks
I've uninstalled MSI CENTER and installed MSI Dragon Center, scan in advanced mode and update. And now It is enabled:

izy · Nov 24, 2022

Apolation said:
It fixed! Thanks
I've uninstalled MSI CENTER and installed MSI Dragon Center, scan in advanced mode and update. And now It is enabled:
View attachment 271463

Thats good news , glad it worked

eidairaman1 · Nov 24, 2022

For BAR to be enabled, you must have it set to enabled in the motherboard bios, if the option is not there, a mobo bios maybe needed, if the option is still not there, the mobo doesnt support it.

Then comes the gpu, you must have a 4GB+GPU for it to work and possibly a bios update for the gpu. Sometimes fresh mobo and gpu drivers are needed.

SerialSutphin · Feb 20, 2023

For anyone who finds this thread in the future because the Asus vbios utility throws errors, what finally worked for me was the following:
1. Download Asus vbios utility
2. Unpack the EXE using WinZip to a folder
3. Open command prompt
4. Change the directory to the unpacked folder (use "cd " followed by the folder path)
5. Type nvflash --protectoff
6. Run the Asus vbios update utility from the unpacked exe folder

fideriks1910 · Feb 27, 2023

Did you ever figure it out?

ondrejvalach · Apr 18, 2023

Here a link that helped me solved this issue for Manli RTX 3070. Link: https://www.manli.com/en/news-detail-192.html
Hope it will help you.
Have a nice day.

:cool:

reco · Apr 20, 2023

SerialSutphin said:
For anyone who finds this thread in the future because the Asus vbios utility throws errors, what finally worked for me was the following:
1. Download Asus vbios utility
2. Unpack the EXE using WinZip to a folder
3. Open command prompt
4. Change the directory to the unpacked folder (use "cd " followed by the folder path)
5. Type nvflash --protectoff
6. Run the Asus vbios update utility from the unpacked exe folder

I tried this but still got the same message that bios update is not needed. Tried also all settings in bios etc. but still cant get rebar working.

I have Asus GeForce RTX 3070 DUAL - OC Edition (LHR) and I believe it came from prebuilt pc. Any help would be appreciated!

izy · Apr 20, 2023

reco said:
I tried this but still got the same message that bios update is not needed. Tried also all settings in bios etc. but still cant get rebar working.

I have Asus GeForce RTX 3070 DUAL - OC Edition (LHR) and I believe it came from prebuilt pc. Any help would be appreciated!

View attachment 292360 View attachment 292362 View attachment 292361

You need to enable Rebar in BIOS.

Athlonite · Apr 20, 2023

reco said:
I tried this but still got the same message that bios update is not needed. Tried also all settings in bios etc. but still cant get rebar working.

I have Asus GeForce RTX 3070 DUAL - OC Edition (LHR) and I believe it came from prebuilt pc. Any help would be appreciated!

View attachment 292360 View attachment 292362 View attachment 292361

Yeah you need to enable rebar in you mobo's UEFI if you tell what mobo you have ( the best thing to do is fill in your system specs in your profile so we don't have to keep asking these questions about what hardware you are using) we should be able to tell you where to go and what to on

reco · Apr 20, 2023

izy said:
You need to enable Rebar in BIOS.

Athlonite said:
Yeah you need to enable rebar in you mobo's UEFI if you tell what mobo you have ( the best thing to do is fill in your system specs in your profile so we don't have to keep asking these questions about what hardware you are using) we should be able to tell you where to go and what to on

It should be enabled and have tried it multiple times to On/Off and then also manually putting correct values put still no luck

Also using latest bios for mb.

Thanks for the tip on system specs now those are filled!

Tatty_Two · Apr 20, 2023

Looking at the info you have provided the problem is definitely your VBios, you screenshots from GPU-Z at Post #60 shows your bios date as 2020 (unless my ageing eyes are failing me), re-sizeable bar was not introduced until Feb 2021 therefore for you need a VBios dated after 25th Feb 2021, if the build date is not actually the Bios build date can you confirm the date of your Bios.

reco · Apr 21, 2023

Tatty_Two said:
Looking at the info you have provided the problem is definitely your VBios, you screenshots from GPU-Z at Post #60 shows your bios date as 2020 (unless my ageing eyes are failing me), re-sizeable bar was not introduced until Feb 2021 therefore for you need a VBios dated after 25th Feb 2021, if the build date is not actually the Bios build date can you confirm the date of your Bios.

Your eyes are not failing yet so build date is 2020-11-03

Tatty_Two · Apr 21, 2023

reco said:
Your eyes are not failing yet so build date is 2020-11-03

View attachment 292460

So there is your problem then, you need to update your Vbios some way with a Bios from March 2021 or later, thing is I cannot find a device ID match for your card in our Bios section at all even though there are loads for the Dual OC, you may have to contact Asus support directly and quote your model and device ID's to see if they can provide you with a copy.

Ivan Bliminse · Apr 27, 2023

Finally managed to update my VBIOS so now i have BAR enabled..

DoH! said:
Got the same problem, I want Resizable bar, i enable it in the BIOS yet it still won't work..... I've tried all of the above = no change.

Finally solved it Post #67

freko · Oct 9, 2023

I have the same issue.
I have a Gpu from a prebuilt pc.
Can someone help me find the right vbios for me?

PapaTaipei · Oct 9, 2023

I guess resizable bar ain't working on 1080ti btw.

Dr. Dro · Oct 9, 2023

PapaTaipei said:
I guess resizable bar ain't working on 1080ti btw.

Not supported on 10 and 20 series. They are too old.

Early make RTX 30 series GPUs manufactured in 2020 and early 2021 require a VBIOS update, newer units and all refreshed 30 series (eg. 3070, 3080 and 3090 in their Ti versions) already have a ReBAR VBIOS from the factory. All 40 series and newer also obviously support the feature from the factory.

freko said:
I have the same issue.
I have a Gpu from a prebuilt pc.
Can someone help me find the right vbios for me?

HP RTX 3080 VBIOS

10 GB GDDR6X, 1440 MHz GPU, 1188 MHz Memory

www.techpowerup.com

astals · Oct 22, 2023

Cant believe it, 3 years later... I have the same exact problem as mentioned above.
I've followed the rabbit hole, and I also got to the same conclusion, that I need a newer VBIOS for my card.
I looked up all the details on my card, and I'm fairly certain I have the exact same card as OP here.
The issue is that my build date for the NVIDIA BIOS is 2020-11-26, so it's too old. But the nvflash wont update to newer versions it seems, and if I try to use the regular installer I will get the same message that I dont need to update it... But yet I do! And yes, double and tripple checked that I have enabled ReBAR in BIOS top right corner as well. 110% sure I have the same issue.

Screenshots from GPU-Z below:

Any help would be appreciated at this point, as I am going nuts here... So annoying.

Dr. Dro · Oct 22, 2023

astals said:
Cant believe it, 3 years later... I have the same exact problem as mentioned above.
I've followed the rabbit hole, and I also got to the same conclusion, that I need a newer VBIOS for my card.
I looked up all the details on my card, and I'm fairly certain I have the exact same card as OP here.
The issue is that my build date for the NVIDIA BIOS is 2020-11-26, so it's too old. But the nvflash wont update to newer versions it seems, and if I try to use the regular installer I will get the same message that I dont need to update it... But yet I do! And yes, double and tripple checked that I have enabled ReBAR in BIOS top right corner as well. 110% sure I have the same issue.

Screenshots from GPU-Z below:
View attachment 318506 View attachment 318507 View attachment 318508

Any help would be appreciated at this point, as I am going nuts here... So annoying.

Is this a TUF 3080? If so, you can use nvflash directly. Just make sure it's a bios for the original, Non-LHR 3080

Shou Miko · Oct 23, 2023

I remember a lot of cards where the vendors didn't activate resizeable bar en release a bios update.

A bios update ain't always bad it can bring features, fix security issues and more.

Check with Asus for your card if there is an update or reach out to their support, they can help you as long as it's not the useless Asus Nordic support which doesn't know a lot.

:D:D · Oct 25, 2023

@astals Your VBIOS isn't listed in the Asus update so really the software should say that. Maybe if you contact Asus and ask them why 94.02.42.00.AS30 isn't included they may provide it for you. Don't know why GPU-Z says no BIOS support, maybe because of lacking BAR size rather than BIOS setting? Some ballon explanations might help as was done with the default window.

Dr. Dro · Oct 25, 2023

:D:D said:
@astals Your VBIOS isn't listed in the Asus update so really the software should say that. Maybe if you contact Asus and ask them why 94.02.42.00.AS30 isn't included they may provide it for you. Don't know why GPU-Z says no BIOS support, maybe because of lacking BAR size rather than BIOS setting? Some ballon explanations might help as was done with the default window.

For resizable BAR support, the following is required:

- Compatible VBIOS
- Motherboard BIOS in pure UEFI mode (CSM DISABLED)
- Above 4G decoding enabled
- Resizable BAR support set to Auto (usually on ASUS MB BIOSes) or enabled
- A fairly up to date version of Windows and of the graphics driver

The correct BIOS for @astals's 3080 is this one if the automatic updater isn't working

Asus RTX 3080 VBIOS

10 GB GDDR6X, 1440 MHz GPU, 1188 MHz Memory

www.techpowerup.com

System Name	Cumquat 2021
Processor	AMD RyZen R7 7800X3D
Motherboard	Asus Strix X670E - E Gaming WIFI
Cooling	Deep Cool LT720 + CM MasterGel Pro TP + Lian Li Uni Fan V2
Memory	32GB GSkill Trident Z5 Neo 6000
Video Card(s)	PowerColor HellHound RX7800XT 2550cclk/2450mclk
Storage	1x Adata SX8200PRO NVMe 1TB gen3 x4 1X Samsung 980 Pro NVMe Gen 4 x4 1TB, 12TB of HDD Storage
Display(s)	AOC 24G2 IPS 144Hz FreeSync Premium 1920x1080p
Case	Lian Li O11D XL ROG edition
Audio Device(s)	RX7800XT via HDMI + Pioneer VSX-531 amp Technics 100W 5.1 Speaker set
Power Supply	EVGA 1000W G5 Gold
Mouse	Logitech G502 Proteus Core Wired
Keyboard	Logitech G915 Wireless
Software	Windows 11 X64 PRO (build 24H2)
Benchmark Scores	it sucks even more less now ;)

System Name	PCGOD
Processor	AMD FX 8350@ 5.0GHz
Motherboard	Asus TUF 990FX Sabertooth R2 2901 Bios
Cooling	Scythe Ashura, 2×BitFenix 230mm Spectre Pro LED (Blue,Green), 2x BitFenix 140mm Spectre Pro LED
Memory	16 GB Gskill Ripjaws X 2133 (2400 OC, 10-10-12-20-20, 1T, 1.65V)
Video Card(s)	AMD Radeon 290 Sapphire Vapor-X
Storage	Samsung 840 Pro 256GB, WD Velociraptor 1TB
Display(s)	NEC Multisync LCD 1700V (Display Port Adapter)
Case	AeroCool Xpredator Evil Blue Edition
Audio Device(s)	Creative Labs Sound Blaster ZxR
Power Supply	Seasonic 1250 XM2 Series (XP3)
Mouse	Roccat Kone XTD
Keyboard	Roccat Ryos MK Pro
Software	Windows 7 Pro 64

Processor	Intel Core i5-11400
Motherboard	Asus ROG Strix B560-I WIFI mini-ITX
Cooling	Cooler Master 280mm AIO
Memory	Kingston FURY Renegade 2 x 16 GB DDR4 3600 MHz CL16
Video Card(s)	Asus Dual GeForce RTX 3070 OC Edition
Storage	Western Digital 1TB WD_BLACK SN850X
Display(s)	DELL S Series S3422DWG
Case	Cooler Master MasterBox NR200P MAX
Power Supply	Cooler Master 850W 80 PLUS Gold

System Name	Cumquat 2021
Processor	AMD RyZen R7 7800X3D
Motherboard	Asus Strix X670E - E Gaming WIFI
Cooling	Deep Cool LT720 + CM MasterGel Pro TP + Lian Li Uni Fan V2
Memory	32GB GSkill Trident Z5 Neo 6000
Video Card(s)	PowerColor HellHound RX7800XT 2550cclk/2450mclk
Storage	1x Adata SX8200PRO NVMe 1TB gen3 x4 1X Samsung 980 Pro NVMe Gen 4 x4 1TB, 12TB of HDD Storage
Display(s)	AOC 24G2 IPS 144Hz FreeSync Premium 1920x1080p
Case	Lian Li O11D XL ROG edition
Audio Device(s)	RX7800XT via HDMI + Pioneer VSX-531 amp Technics 100W 5.1 Speaker set
Power Supply	EVGA 1000W G5 Gold
Mouse	Logitech G502 Proteus Core Wired
Keyboard	Logitech G915 Wireless
Software	Windows 11 X64 PRO (build 24H2)
Benchmark Scores	it sucks even more less now ;)

Processor	Intel Core i5-11400
Motherboard	Asus ROG Strix B560-I WIFI mini-ITX
Cooling	Cooler Master 280mm AIO
Memory	Kingston FURY Renegade 2 x 16 GB DDR4 3600 MHz CL16
Video Card(s)	Asus Dual GeForce RTX 3070 OC Edition
Storage	Western Digital 1TB WD_BLACK SN850X
Display(s)	DELL S Series S3422DWG
Case	Cooler Master MasterBox NR200P MAX
Power Supply	Cooler Master 850W 80 PLUS Gold

Processor	Intel Core i9 11900KF @ -.080mV PL max @220w
Motherboard	MSI MAG Z490 TOMAHAWK
Cooling	DeepCool LS520SE Liquid + 3 Phanteks 140mm case fans
Memory	32GB (4 x 8GB SR) Patriot Viper Steel Bdie @ 3600Mhz CL14 1.45v Gear 1
Video Card(s)	Asus Dual RTX 4070 OC + 8% PL
Storage	WD Blue SN550 1TB M.2 NVME//Crucial MX500 500GB SSD (OS)
Display(s)	AOC Q2781PQ 27 inch Ultra Slim 2560 x 1440 IPS
Case	Phanteks Enthoo Pro M Windowed - Gunmetal
Audio Device(s)	Onboard Realtek ALC1200/SPDIF to Sony AVR @ 5.1
Power Supply	Seasonic CORE GM650w Gold Semi modular
Software	Win 11 Home x64

System Name	Scan 3XS System
Processor	Intel Core i7 11700K
Motherboard	ASUS TUF GAMING Z590-PLUS WIFI
Cooling	Corsair Hydro H150i ELITE CAPELLIX RGB
Memory	64GB Kingston FURY Beast DDR4 3200Mhz 1.35
Video Card(s)	10GB EVGA GeForce RTX 3080 XC3 ULTRA GAMING
Storage	256GB EN605 M.2 SSD, 240GB Kingston SSD, 1TB Lexar NQ790 SSD, 1TB Samsung 970 SSD, 2TB Seagate HDD.
Display(s)	Samsung C32JG5x Curved, 1080p, 1920 x 1080
Case	Corsair iCUE 4000X RGB
Power Supply	Corsair RM750x 80PLUS GOLD
Mouse	Razer Mouse
Keyboard	ROCCAT Horde
Software	Microsoft Windows 11 Pro 64-Bit 24H2

Processor	13th Gen Intel Core i9-13900KS
Motherboard	ASUS ROG Maximus Z790 Apex Encore
Cooling	Pichau Lunara ARGB 360 + Honeywell PTM7950
Memory	32 GB G.Skill Trident Z5 RGB @ 7600 MT/s
Video Card(s)	Palit GameRock OC GeForce RTX 5090 32 GB
Storage	500 GB WD Black SN750 + 4x 300 GB WD VelociRaptor WD3000HLFS HDDs
Display(s)	55-inch LG G3 OLED
Case	Cooler Master MasterFrame 700 benchtable
Power Supply	EVGA 1300 G2 1.3kW 80+ Gold
Mouse	Microsoft Classic IntelliMouse
Keyboard	IBM Model M type 1391405
Software	Windows 10 Pro 22H2
Benchmark Scores	I pulled a Qiqi~

System Name	Lynni Zen \| Lenowo TwinkPad L14 G2 \| Tiny Tiger
Processor	AMD Ryzen 7 7700 Raphael \| i5-1135G7 Tiger Lake-U \| i9-9900k (Turbo disaabled)
Motherboard	ASRock B650M PG Riptide Bios v. 3.20 AMD AGESA 1.2.0.3a \| Lenowo BDPLANAR Bios 1.68 \| Lenowo M720q
Cooling	AMD Wraith Cooler \| Lenowo C-267C-2 \| Lenowo 01MN633 (35W)
Memory	Flare X5 2x16GB DDR5 6000MHZ CL36 (AMD EXPO) \| Willk Elektronik 2x16GB 2666MHZ CL17 \| Crucial 2x16GB
Video Card(s)	Sapphire PURE AMD Radeon™ RX 9070 Gaming OC 16GB \| Intel® Iris Xe Graphics \| Intel® UHD Graphics 630
Storage	Gigabyte M30 1TB\|Sabrent Rocket 2TB\| HDD: 1TB \| WD RED SN700 1TB \| M30 1TB\ SSD 1TB HDD: 16TB\10TB
Display(s)	KTC M27T20S 1440p@165Hz \| LG 48CX OLED 4K HDR \| Innolux 14" 1080p
Case	Asus Prime AP201 White Mesh \| Lenowo L14 G2 chassis \| Lenowo M720q chassis
Audio Device(s)	Steelseries Arctis Pro Wireless
Power Supply	Be Quiet! Pure Power 12 M 750W Goldie \| Cyberpunk GaN 65W USB-C charger \| Lenowo 95W slim tip
Mouse	Logitech G305 Lightspeedy Wireless \| Lenowo TouchPad & Logitech G305
Keyboard	Ducky One 3 Daybreak Fullsize \| L14 G2 UK Lumi
Software	Win11 IoT Enterprise 24H2 UK \| Win11 IoT Enterprise LTSC 24H2 UK / Arch (Fan)
Benchmark Scores	3DMARK: https://www.3dmark.com/3dm/89434432? GPU-Z: https://www.techpowerup.com/gpuz/details/v3zbr

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