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Yan
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Does video card require UEFI?

Fri Sep 02, 2016 11:50 am

I'm interested in a RX 460 video card. The specifications say: "BIOS Support: UEFI BIOS". Does this really mean that the card won't run with a non-UEFI BIOS? Or does it mean that the card works with both BIOS and UEFI?
 
TwistedKestrel
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Re: Does video card require UEFI?

Fri Sep 02, 2016 12:16 pm

It depends on the context, but it probably means that it specifically supports UEFI GOP boot. UEFI only requires it for certain booting modes and almost never actually *needs* it. If it did need it, you would know (either a weird dev platform or a super secure platform). Otherwise it is perfectly happy to use the older Video BIOS that is present. Video BIOS is probably not going away for a while yet.
 
The Egg
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Re: Does video card require UEFI?

Fri Sep 02, 2016 2:40 pm

Well this is new....I didn't know graphics cards cared about UEFI.  How old is the system in question?  I know UEFI has been fairly ubiquitous since about 2011, so perhaps a 460 is a bit much?
 
Yan
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Re: Does video card require UEFI?

Fri Sep 02, 2016 3:10 pm

The Egg wrote:
Well this is new....I didn't know graphics cards cared about UEFI.  How old is the system in question?  I know UEFI has been fairly ubiquitous since about 2011, so perhaps a 460 is a bit much?

The system was built around 2009. I realize that it won't be able to fully use a RX 460 (see my previous thread), but I can use the card in a new system I hope to build once Zen is released.
 
ColeLT1
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Re: Does video card require UEFI?

Fri Sep 02, 2016 3:15 pm

I know this is the opposite of what you are asking, but I know if you stick a older card in a computer that is set to UEFI boot (no legacy) it will not work.

I have UEFI boot only turned on my computer, when I sold my 970 I stuck in a spare GTX460 while I waited on my 1070, only it would not boot. Pulled the card and switched to legacy boot and could get video (but of course I didn't have a legacy bootloader present, so I just used onboard vid for the few days).
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srg86
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Re: Does video card require UEFI?

Fri Sep 02, 2016 3:18 pm

The Egg wrote:
Well this is new....I didn't know graphics cards cared about UEFI.  How old is the system in question?  I know UEFI has been fairly ubiquitous since about 2011, so perhaps a 460 is a bit much?

The UEFI GOP driver is the UEFI equivalent of the old Legacy VGA Option ROM (aka the video BIOS). A graphics card with a GOP driver will usually have both a Legacy Option ROM and the GOP in the same flash chip.
On a UEFI system with the CSM (Compatibility Support Module) disabled, so a pure UEFI Boot, without the GOP driver you probably won't get any graphics output until the OS driver initializes the GPU, at least to my understanding. The CSM is needed to run the legacy Option ROM.
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Yan
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Re: Does video card require UEFI?

Sat Sep 03, 2016 9:48 pm

I've tried it, and I can confirm that an RX 460 does work properly with a BIOS motherboard.

Keep in mind that my motherboard only supports PCI Express 1. Compared to an R7 250, Passmark's 2D Graphics benchmark went from 448 to 461. The 3D Graphics benchmark went from 1849 to 4075.

The Windows Performance Index for Graphics went from 7,2 to 7,9, as did the Game Graphics index. This is with Windows 7 64 bits.

The difference in quality is obvious when playing Crysis 2.
 
avixb
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Re: Does video card require UEFI?

Wed Dec 07, 2016 5:50 am

Yan wrote:
I've tried it, and I can confirm that an RX 460 does work properly with a BIOS motherboard.

Keep in mind that my motherboard only supports PCI Express 1. Compared to an R7 250, Passmark's 2D Graphics benchmark went from 448 to 461. The 3D Graphics benchmark went from 1849 to 4075.

The Windows Performance Index for Graphics went from 7,2 to 7,9, as did the Game Graphics index. This is with Windows 7 64 bits.

The difference in quality is obvious when playing Crysis 2.


is it the sapphire radeon rx 460 2gb or 4gb? could you tell me what motherboard you are using with this card?

i dont have uefi bios to my mobo gigabyte GA-MA74GM-S2H (rev. 3.0) id like to know if it would work 
 
Yan
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Re: Does video card require UEFI?

Thu Dec 08, 2016 10:01 pm

avixb wrote:
is it the sapphire radeon rx 460 2gb or 4gb? could you tell me what motherboard you are using with this card?

You're lucky I happened to see your message!

Sapphire Radeon RX 460 2 GB, and Gigabyte GA-MA790GP-UD4H.

I'm now trying to install the new Crimson ReLive drivers, but the servers seem overloaded. :-(
 
asad_nazat
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Re: Does video card require UEFI?

Sat Dec 10, 2016 11:24 am

Can Anyone tell me If Sapphire rx460 2G compatible with MSI 760GM P23(FX)? As this MOBO has Legacy Bios and RX460 needs UEFI. 

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