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GTX770-DC2OC-2GD5...does it work for UEFI on Maximus VI Formula?

Ambidexter
Level 7
Hi,

Can I use my GTX770-DC2OC-2GD5, currently running fine on Legacy BIOS in UEFI boot mode? I'll need to get Win 8.1 in UEFI, but I'm having image backup problems, and may at least need to do recovery...if not reinstall Win8 and upgrade (groan). But if I do have to I'd like to get the faster booting with UEFI.

Here is my computer's relevant Performance Test Information for the board:

Video BIOS: Version 80.4.c3.0.2
Driver Version: 9.18.13.3182
Driver Date: 11-11-2013

I've been updating from Nvidia as the control panel finds updates, but I can't use the Asus vBIOS update, as it says it doesn't support this card...which seems odd. Perhaps it's already updated?

The support page's sales blurb says it supports it, but there are no documents, manuals or FAQs for this card, so I can't tell if there's some procedure.

Thanks,

-Ambi

P.S. I have 3 RAIDs set up on the Intel controller. RAID-1 SSD for Win 8.1, RAID-0 SSD for temp / paging, & RAID-1 HDD for data. Will this be a problem for the MB in UEFI?
MB: Maximus VIII Hero
CPU:Intel i7-6700K OC @ 4.7 GHz
Mem: 32GB Corsair Vengeance LPX @ 3600 MHz
Vid: EVGA GTX980 Ti SC@ 1530MHz
SSD:RAID1&0 Samsung 256G 840 Pro

HDD: RAID1 6TB Ultrastar 7K6000
PSU: Corsair AX1200i
Case:Corsair 600T, mod for roof rad

Custom Loop:
Block:EK Supremacy Clean CSQ, Copper
Rads:AlphaCool ST30 360 & 120
Fans: 4 X Enermax CLUSTER Advance, Bitfenix Spectre Pro 200mm, KingWin DB122
Pumps:2 X MCP 35x in series
Tubing:Tygon 2475 1/2" ID X 3/4" OD
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Ambidexter
Level 7
In general, this card works fine with this MB, even in UEFI. I was mistakenly believed that a separate UEFI BIOS was required for the card, and the card doesn't show up in the UEFI bios as being there, but it works and boots fast, so who knows...but at least it works!
MB: Maximus VIII Hero
CPU:Intel i7-6700K OC @ 4.7 GHz
Mem: 32GB Corsair Vengeance LPX @ 3600 MHz
Vid: EVGA GTX980 Ti SC@ 1530MHz
SSD:RAID1&0 Samsung 256G 840 Pro

HDD: RAID1 6TB Ultrastar 7K6000
PSU: Corsair AX1200i
Case:Corsair 600T, mod for roof rad

Custom Loop:
Block:EK Supremacy Clean CSQ, Copper
Rads:AlphaCool ST30 360 & 120
Fans: 4 X Enermax CLUSTER Advance, Bitfenix Spectre Pro 200mm, KingWin DB122
Pumps:2 X MCP 35x in series
Tubing:Tygon 2475 1/2" ID X 3/4" OD