Help
cancel
Turn on suggestions
Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
Showing results for 
Search instead for 
Did you mean: 

Maximus VI formula CSM legacy mode?

jpomz
Level 7

‎02-19-2014 06:38 AM - last edited on ‎03-05-2024 11:39 PM by Community Admin

Hello, I've got a maximus VI formula, but for some reason it always needs to boot in legacy mode, and I can't figure out why.

I installed windows 7 in UEFI mode, and updated my bios, but it still won't boot unless in legacy mode.

My system specs are as follows.

Maximus VI formula

i7 4770k

Gtx 770 directcu2 x2

16 GB corsair dominator

240gb intel 530 series SSD

1TB WD black

The motherboard makes me load the legacy stuff for my pci-e cards, but don't the gtx 770's support UEFI?

I even flashed the latest BIOS onto the motherboard.

Does anyone know what could be causing this?
Labels:
0 Kudos
695 Views
10 REPLIES 10

jh30uk
Level 11

‎02-19-2014 06:46 AM

If all settings in Bios are correct and you installed in UEFI mode then looks like GPU does not by default come with correct UEFI bios but would think 700 series would.

I know with the 600 series you had to request a UEFI Bios from EVGA support and the 770 is a rehashed 680.

The staff here should know.
0 Kudos

jpomz
Level 7
In response to jh30uk

‎02-19-2014 06:58 AM

How can I flash a new bios to the video cards?
0 Kudos

jh30uk
Level 11

‎02-19-2014 09:52 AM

Well I would see what Asus say about the current Bios, find out if its fully UEFI.
0 Kudos

jpomz
Level 7
In response to jh30uk

‎02-19-2014 12:13 PM

Do they frequent the forums?
0 Kudos

jh30uk
Level 11

‎02-19-2014 12:49 PM

Yes, but what about Googling your exact model and seeing what comes up.
0 Kudos

Praz
Level 13

‎02-19-2014 01:12 PM

ASUS 700 series video cards are UEFI capable out of the box.
0 Kudos

jpomz
Level 7
In response to Praz

‎02-20-2014 05:31 PM

Praz wrote:
ASUS 700 series video cards are UEFI capable out of the box.

Then why do I need to load legacy oproms?
0 Kudos

Praz
Level 13

‎02-20-2014 06:05 PM

Hello

How are you determining the video cards are the issue? The only setting that is dependent on video card UEFI compatibility is the Hardware Fast Boot setting.
0 Kudos

jpomz
Level 7
In response to Praz

‎02-20-2014 06:24 PM

Praz wrote:
Hello

How are you determining the video cards are the issue? The only setting that is dependent on video card UEFI compatibility is the Hardware Fast Boot setting.


I just assumed it was them because when I googled the issue that was the only thing that came up.

What else could be forcing me into needing legacy mode? Everytime I try to disable CSM it forces it back on.

Edit: I just figured it out. I need to have secure boot enabled and windows 7 doesn't support it. What a bummer.
0 Kudos