Help to find Sapphire RX580 8GB Original Bios (Samsung K4G80325FC)

[rajiv8047]

Please find original bios for Sapphire RX580 8GB bios Dual bios ,there unverified version can find ,am brought used Sapphire may be previous owner has modded
the bios ,has dual bios one switch position now working shows Non-UEFI low Frequency as per GPU-Z

PART NO 299-4E353-830SA
SKU-11265-05
Samsung* K4G80325FC-HC25

 

[eidairaman1]

Will take time, will be back later to study it all

1366/2000

Latest bios for your card

Sapphire RX 580 VBIOS

8 GB GDDR5, 1366 MHz GPU, 2000 MHz Memory

www.techpowerup.com

Sapphire RX 580 VBIOS

8 GB GDDR5, 1366 MHz GPU, 2000 MHz Memory

www.techpowerup.com

Sapphire RX 580 VBIOS

8 GB GDDR5, 1366 MHz GPU, 2000 MHz Memory

www.techpowerup.com

Here are the rest

TechPowerUp

Extensive repository of graphics card BIOS image files. Our database covers submissions categorized by GPU vendor, type, and board partner variant.

www.techpowerup.com

Use this guide to flash.

Download atiflash/amdvbflash 2.93

If you can't find 2.93, Go here https://www.techpowerup.com/download/ati-atiflash/

Then look for Version 4.68, underneath 4.68 you will see a link to show older version, click that and you should see version 2.93

Follow this Guide

Follow these steps carefully:

1. Open your "C:" drive in Windows, create a new folder, call it atiflash.

2. Extract the contents of atiflash_293.zip to the "C:\atiflash" folder

3. Find the bios file you downloaded and rename the bios file to biosname.rom

(Biosname.rom is just an example, change it to match your card model in 5 characters with .rom on end)

4. Move biosname.rom to the "C:\atiflash" folder

5. Open the start menu, type cmd, when cmd.exe appears right click it and hit "Run as administrator"

6. At the command prompt type in cd\ and press enter until only C:\> is on the screen.

7. Type in cd/atiflash and press enter, you should see C:\atiflash>

8. At the C:\atiflash> prompt type in
amdvbflash.exe -unlockrom 0
(there is a space between the e and -unlockrom and 0)(0 is the number zero)
press enter and you will be prompted that the "ROM Unlocked"

9. At the C:\atiflash> prompt type in
amdvbflash.exe -f -p 0 biosname.rom
(there is a space between the .exe and -f, and a space between -f and -p and 0)press enter.

Follow directions on screen and if flash is successful exit the command prompt and restart, windows should show up on screen.

Please find original bios for Sapphire RX580 8GB bios Dual bios ,there unverified version can find ,am brought used Sapphire may be previous owner has modded
the bios ,has dual bios one switch position now working shows Non-UEFI low Frequency as per GPU-Z

PART NO 299-4E353-830SA
SKU-11265-05
Samsung* K4G80325FC-HC25

 

[rajiv8047]

@eidairaman1 Thanks for the information ,This card GPU clock was low & memory 1925 mhz,there was
any major difference between Samsung K4G80325FB & K4G80325FC ,majority of sapphire RX580 graphics card uses K4G80325FB,is it compatible with K4G80325FC

 

[Imperator]

Hello.
Those BIOS files that @eidairaman1 provided, are an exact match for your card ID and sub ID and memory code.
Those are made exactly for Samsung K4G80325FC memory.
And no, FB and FC are not the same, they have different timings.
Me personally i would prefer FB if i can choose.

 

[eidairaman1]

@eidairaman1 Thanks for the information ,This card GPU clock was low & memory 1925 mhz,there was
any major difference between Samsung K4G80325FB & K4G80325FC ,majority of sapphire RX580 graphics card uses K4G80325FB,is it compatible with K4G80325FC

Please understand that from the factory cards with a bios switch would get a gaming bios and a compute bios, typically compute bios are not uefi capable, Sapphire made them that way. See what @impero said, the bios i provided match your card by correct clocks, device id subsystem id, and memory type.

That very first link even matches you sku number.

 

[Imperator]

That very first link even matches you sku number.

Exactly. So don't worry about the files he provided.

 

[eidairaman1]

@eidairaman1 Thanks for the information ,This card GPU clock was low & memory 1925 mhz,there was
any major difference between Samsung K4G80325FB & K4G80325FC ,majority of sapphire RX580 graphics card uses K4G80325FB,is it compatible with K4G80325FC

Did you fix the card?

 

[rajiv8047]

Did you fix the card?

@eidairaman1 thanks for the advice Bios ,am flash with CH341 usb programmer works perfectly with the first link provided ,windows update driver not shows bandwidth ,after installing AMD Andrenalin driver with Factory reset ,every thing woks perfect.

Works with MacPro 5,1 opencore Monterey 12.5 with boot screen, graphics acceleration ,DRM works Perfectly .Actually its happen because of try for MacOS bootscreen by changing bios chip to AT25DF021A , also get boot screen for K4G80325FC while loading desktop it will be stuck while loading desktop .Has flashed before Samsung chip K4G80325FB works perfectly with mac boot screen custom flash bios .May be some clock setting and timing setting can solve the issue on K4G80325FC on mac .Thanks for point out correct bios .