I want to switch from the standard BIOS (legacy) to UEFI Boot and have therefore installed a Windows 10 test installation on a separate SSD with UEFI. I cannot deactivate "CSM" because according to the error message the graphics card does not support GPO. This means I cannot activate "Secure Boot" in the BIOS. According to an internet search, it might be possible to update the VBIOS of the graphics card and that is how I came across your websit
Is it possible to activate UEFI support on the card listed above using a VBIOS update?
EDIT ADD: Okay so I think I found the stuff I babble about below - this was more geared for HD5000 series cards so - probably not applicable. I'll spoiler what i said originally but probably should do any other option first before going this route... Old Radeon and Geforce GOP update
so I don't want to give you false hope, and I can't for the life of me remember the name of the utility and scripts ugh but... there at least used to be a resources to attempt "patching" in an UEFI GOP to older radeon cards for hackintosh attempts.
It would take a dump of your current vbios and then attempt to append a "compatible enough" uefi GOP from a bunch they collected and you'd flash that back... and then hope the eeprom was big enough on your card and/or there were enough hooks in your original vbios to clank over to it. It was weird.
It might be a rabbit hole to look at if you're determined to get your 7850 working under uefi, cause 7850 was Pitcarn core which was also radeon R7 270 or something like that?
That said this is a sketchy route from an unreliable narrator (me) and I don't want you to brick your card flashing garbage to it cause some forum mook told you a fairy tale from 10 years ago =D
Another route - which i haven't tried but maybe others can chime in - this on the assumption you're doing all this to go from win10 to 11. DON'T DO THIS UNTIL SOMEONE CAN CONFIRM - but maybe... If you have onboard video and it's UEFI compliant (which i assume if the mobo allows you to turn off CSM) pull out your 7850 (THIS ASSUMES YOU HAVE INTEGRATED VIDEO SOMEWHERE), turn off CSM (AGAIN, IF YOU DON'T HAVE INTEGRATED VIDEO, TURNING CSM OFF WILL MAKE YOUR LIFE A PITA IF YOU DON'T HAVE A UEFI VIDEO CARD TO BOOT WITH), upgrade to win11, and then turn CSM back on and reinstall your vid card.
I don't know if win11 will complain after the fact if you turn CSM back on - i mean if it didn't work all of the win11 requirement bypass methods you see online would be for naught. But again while i think this should work, I don't want you to do then then we find out nope. Hopefully someone can confirm if this is viable strat?
You read it right, these are BIOSes of cards from other subvendors. These might brick your GPU. Will be tricky to flash (I totally recall doing this under Kali Linux but cannot for the life of me remember how, perhaps @eidairaman1 can guide you through it).
Other possible donotwants:
• Fans going apeshit or refusing to work.
• Similar happening to voltage (extra unlikely, I've only seen that once).
• Some of these BIOSes have higher frequencies that might prove unstable so you need to manually underclock the GPU.
I repeat, flashing this might brick your GPU. It won't die, it just becomes unusable until you flash the correct BIOS. Which is only possible in a limited amount of scenarios.
@Divide Overflow this is just not true, UEFI had been introduced when the whole HD 7000 series didn't exist. Some HD 7000 series GPUs support UEFI out of the box. Some of them have this feature disabled / cut from firmware but hardware knows how to behave.
I've never seen a 7000 series card that supported UEFI, and I've tested lots of them. Some firmware editing might work, might not. Going to be legacy drivers if you do get it working.
Please get a picture of the model number/ part number sticker licated on the back of the card, it might have the xfx logo on it... Post here
Please open gpu-z back up and click the advanced tab and screenshot everything in there, there is a V next to the word general, click it and select next context menu items and screenshot those. Im trying to gather as much info on your card as possible, post your screenshots please
I've never seen a 7000 series card that supported UEFI, and I've tested lots of them. Some firmware editing might work, might not. Going to be legacy drivers if you do get it working.
Let me see if i can find something that might work, i know in tge R200 line some Cards were being rebadged specifically like the 250X but were given a uefi only bios, let me dig, you might be able to as well with your crazy projects lol
EDIT ADD: Okay so I think I found the stuff I babble about below - this was more geared for HD5000 series cards so - probably not applicable. I'll spoiler what i said originally but probably should do any other option first before going this route... Old Radeon and Geforce GOP update
so I don't want to give you false hope, and I can't for the life of me remember the name of the utility and scripts ugh but... there at least used to be a resources to attempt "patching" in an UEFI GOP to older radeon cards for hackintosh attempts.
It would take a dump of your current vbios and then attempt to append a "compatible enough" uefi GOP from a bunch they collected and you'd flash that back... and then hope the eeprom was big enough on your card and/or there were enough hooks in your original vbios to clank over to it. It was weird.
It might be a rabbit hole to look at if you're determined to get your 7850 working under uefi, cause 7850 was Pitcarn core which was also radeon R7 270 or something like that?
That said this is a sketchy route from an unreliable narrator (me) and I don't want you to brick your card flashing garbage to it cause some forum mook told you a fairy tale from 10 years ago =D
Another route - which i haven't tried but maybe others can chime in - this on the assumption you're doing all this to go from win10 to 11. DON'T DO THIS UNTIL SOMEONE CAN CONFIRM - but maybe... If you have onboard video and it's UEFI compliant (which i assume if the mobo allows you to turn off CSM) pull out your 7850 (THIS ASSUMES YOU HAVE INTEGRATED VIDEO SOMEWHERE), turn off CSM (AGAIN, IF YOU DON'T HAVE INTEGRATED VIDEO, TURNING CSM OFF WILL MAKE YOUR LIFE A PITA IF YOU DON'T HAVE A UEFI VIDEO CARD TO BOOT WITH), upgrade to win11, and then turn CSM back on and reinstall your vid card.
I don't know if win11 will complain after the fact if you turn CSM back on - i mean if it didn't work all of the win11 requirement bypass methods you see online would be for naught. But again while i think this should work, I don't want you to do then then we find out nope. Hopefully someone can confirm if this is viable strat?
I found some bios that match the 1024SP HD7850, as a R9 270 from XFX the problems are they only have Samsung Memory Tables and also the C0 Part numbering used, so that means it would require a copy of memory tables from the existing hd7850 to be implemented in the the r9 270 bios, or a gop update of the hd7850 bios.
I do not have the capability to modify bios files unfortunately. So lets see
Ok so from the screenshot above this is the stock bios.
Hello guys! For the last days i've been reading a lot of posts here about how to flash and so on. i do own a xfx hd 7850 dd black edition. it's mine since 2012 and stillt is good enough for most new games on normal details. so i decided to buy a second card via ebay and found a xfx hd 7850 dd...
www.techpowerup.com
Do not flash these files, they are for comparison to above and potential mod.
I've never seen a 7000 series card that supported UEFI, and I've tested lots of them. Some firmware editing might work, might not. Going to be legacy drivers if you do get it working.
Not sure what CPU the original poster is using.... wasn't mentioned....
But if having a 5700G installed, the iGPU will be about 500% faster than HD 7850, will boot UEFI and only costs about 150 bucks or so. Food for thought.
Here's a Sapphire UEFI patched bios with Hynix MFR. I don't think it'll work for your card, but could always try and see.
Back up your current bios first obviously. Have an alternative for video incase the gpu becomes unresponsive. If you do not have another GPU or iGpu on your cpu, then I strongly advise against this flash.
Here's a Sapphire UEFI patched bios with Hynix MFR. I don't think it'll work for your card, but could always try and see.
Back up your current bios first obviously. Have an alternative for video incase the gpu becomes unresponsive. If you do not have another GPU or iGpu on your cpu, then I strongly advise against this flash.
I'm guessing they want to do this for "official" Windows 11 support. I'm also making the assumption (and you know what they say about assumptions) that they're sticking with this card maybe for multi-monitor support vs. integrated, even though finding a used but newer UEFI supporting card, or getting a cpu with UEFI compliant integrated video would probably be faster and under $100.
That said yea, while vBIOS flashing and modding is fun and all, I wouldn't really recommend it if this is your only vid card.
Also I'm kinda surprised this card doesn't already have UEFI support, does it by chance have a vbios select switch? I know on a Radeon 290 I had one setting had UEFI support and the other setting didn't which was fun to figure out.
I'm guessing they want to do this for "official" Windows 11 support. I'm also making the assumption (and you know what they say about assumptions) that they're sticking with this card maybe for multi-monitor support vs. integrated, even though finding a used but newer UEFI supporting card, or getting a cpu with UEFI compliant integrated video would probably be faster and under $100.
That said yea, while vBIOS flashing and modding is fun and all, I wouldn't really recommend it if this is your only vid card.
Also I'm kinda surprised this card doesn't already have UEFI support, does it by chance have a vbios select switch? I know on a Radeon 290 I had one setting had UEFI support and the other setting didn't which was fun to figure out.
Official W11 support? That only requires a legit Windows key, nothing more.
I've hot swapped a lot of gpus on w10 and 11. The Windows install is UEFI, but can swap in any card that does not support UEFI and Windows is perfectly fine with it. The board automatically boots CSM, a quick notification before post, Windows posts right up without changes to the OS with the exception of it installing a generic display driver.
That being said, if the card holds a value, then maybe a flash for UEFI isn't a good idea.
I could probably mod the bios for OP, but won't do such things without a test subject, and unfortunately do not.
I'm guessing they want to do this for "official" Windows 11 support. I'm also making the assumption (and you know what they say about assumptions) that they're sticking with this card maybe for multi-monitor support vs. integrated, even though finding a used but newer UEFI supporting card, or getting a cpu with UEFI compliant integrated video would probably be faster and under $100.
That said yea, while vBIOS flashing and modding is fun and all, I wouldn't really recommend it if this is your only vid card.
Also I'm kinda surprised this card doesn't already have UEFI support, does it by chance have a vbios select switch? I know on a Radeon 290 I had one setting had UEFI support and the other setting didn't which was fun to figure out.
Radeon HD 7000 series cards with UEFI support definitely existed, I've got one in my main Win7 machine. It's an Asus DirectCU II Top. It originally came with a legacy BIOS, but I updated it to a UEFI one. This was done with an official tool and rom from Asus:
However, digging through XFX site with Wayback Machine did not reveal any BIOS images for download, and I couldn't even find the specific HD7850 Double Dissipation model listed
OP best bet is probably to use GOP patcher if you can, I have done it several years ago and had a better outcome than trying different mfr BIOS's though unfortunately you will need to research it and see if it can work for you and your specific GPU, use search and read....
OP best bet is probably to use GOP patcher if you can, I have done it several years ago and had a better outcome than trying different mfr BIOS's though unfortunately you will need to research it and see if it can work for you and your specific GPU, use search and read....
Radeon HD 7000 series cards with UEFI support definitely existed, I've got one in my main Win7 machine. It's an Asus DirectCU II Top. It originally came with a legacy BIOS, but I updated it to a UEFI one. This was done with an official tool and rom from Asus:
However, digging through XFX site with Wayback Machine did not reveal any BIOS images for download, and I couldn't even find the specific HD7850 Double Dissipation model listed
RadeonHD7850.gif
