• We've upgraded our forums. Please post any issues/requests in this thread.

Asus HD 7970 DC2T - Original VBIOS with DVI-Dual Link, and small help

Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#1
I'm new here so... Hello! :)

I'm looking for BIOS: Asus Radeon HD 7970 DirectCU II TOP, for second switch position(DVI-Dual Link). I want to start 120Hz on 1080p on my gaming monitor.
My first BIOS version is 6798.15.12.0.4.AS05.U3.

And the problem is this:
I flashed second BIOS, but something went wrong. When I start computer on the second BIOS, nothing happens. Black screen. What's the problem? What I can do?
How can I do something when see black screen?

Pleas help.

~Tintai
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#2
It is here:

http://www.techpowerup.com/vgabios/126156/Asus.HD7970.3072.120117_3.html

Some BIOS versions do not work with all DCUIIT cards(I had one of these cards). There are at least two different PCB versions, for sure, maybe 3, seem BIOSes are not compatible.

So, boot with working BIOS, and once booted, flip BIOS switch before flashing. This will allow you to flash broken BIOS.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,385 (10.16/day)
Likes
18,028
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#3
Use position 1 to boot into ATiFlash, when you are actually ready to flash the new bios on to your card, switch it to position 2 and flash it. Check the VGA bios collection for the bios you need: http://www.techpowerup.com/vgabios/
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#4
Thanks.

Tell me, if I switch to second position and flash it, does not write first BIOS? Sure I flash second?
I was a little afraid that it will flash first.

And the first BIOS is write-protected?

Ahh sorry for my English, but I think you understand me.

@ed:
ATIFlash don't work for my. Program tell me: "A version of this file is not compatible with the version of Windows you are using..." But I have Win 7 x64.
 

erocker

Senior Moderator
Staff member
Joined
Jul 19, 2006
Messages
42,385 (10.16/day)
Likes
18,028
Processor Intel i7 8700k
Motherboard Gigabyte z370 AORUS Gaming 7
Cooling Water
Memory 16gb G.Skill 4000 MHz DDR4
Video Card(s) Evga GTX 1080
Storage 3 x Samsung Evo 850 500GB, 1 x 250GB, 2 x 2TB HDD
Display(s) Nixeus EDG27
Case Thermaltake X5
Power Supply Corsair HX1000i
Mouse Zowie EC1-B
Software Windows 10
#5
ATIFlash don't work for my. Program tell me: "A version of this file is not compatible with the version of Windows you are using..." But I have Win 7 x64
You have to put ATiFlash (not winflash) on to a bootable USB drive and boot from it. Once it is booted, at the command line you need to input: atiflash -f -p 0 "biosname".rom

Don't hit enter yet.

Flip the switch to the #2 position, then hit enter to flash the bios.

(No quotes use the name of the bios)

If the switch is set to #2 it will flash to #2.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#6
Ah, so i must flash it from Dos, not Windows? Ok.

I'll do it tomorrow. Thanks for your help.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#7
I have another question.
What program I need to use to create bootable pendrive? Or I only need to open it from Boot Menu(F11)?
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#8
I have another question.
What program I need to use to create bootable pendrive? Or I only need to open it from Boot Menu(F11)?
IF you google(yes, I know, sry, but it's the best way) "how to make USB DOS bootable", you'll find both an "HP USB BOOT TOOL" and "BOOT FILES" that are needed.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#9
Yes, I know, but I thought it needed something special program to this.
But thank you :)
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#10
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#11
That I know. I think I understand :) And I hope everything goes well.
But I wonder if I chose the good BIOS. I need to find the Dual-Link version.
I chose this from first your post.

But I found similar:
1 - http://www.techpowerup.com/vgabios/125542/Asus.HD7970.3072.120321_2.html (6798.15.12.0.4.AS09.U3)
2 - http://www.techpowerup.com/vgabios/123384/Asus.HD7970.3072.120321.html (6798.15.12.0.4.AS09.U3)
3 - http://www.techpowerup.com/vgabios/121782/Asus.HD7970.3072.120321_1.html (6798.15.12.0.4.AS09.U2)
4 - http://www.techpowerup.com/vgabios/124859/Asus.HD7970.3072.120409.html (6798.15.17.0.1.AS02.U2)
5 - http://www.techpowerup.com/vgabios/132176/Asus.HD7970.3072.120718.html (6798.15.17.0.1.AS04.U2)
6 - http://www.techpowerup.com/vgabios/133037/Asus.HD7970.3072.121018.html (6798.15.23.0.2.AS01.U2)

How to check which of them is DVI Dual Link?
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#12
U2 is one, U3 is the other. As long as you have both, then you can test which is which.


AS04 is VGA version number. Mine, for example, is AS04. Yours is AS05...different card, somehow, whether PCB version, or maybe cooler revision, whatever...

So, in your list, top two are identical, second is from same card, but is other DVI operation(u2 asnd U3).

The other three are from other cards, all are same DVI function.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#13
I see. I have 6798.15.12.0.4.AS05.U3, and it's Single Link. Maybe U2 is Dual Link.
So I can flash this U2? (6798.15.12.0.4.AS09.U2)
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#14
I see. I have 6798.15.12.0.4.AS05.U3, and it's Single Link. Maybe U2 is Dual Link.
So I can flash this U2? (6798.15.12.0.4.AS09.U2)
Potentially, yes, but as I mentioned earlier, some BIOSes don't work on all cards, so flash may result in no boot.

Which is no big deal, since you have other BIOS to recover from.


Also, many users say that 2560x1600 doesn't work with this card. I had not tested. So maybe use DP port working or not to check if U3 or U2 is "dual-link". That's how it works, it disables DP ports to make dual-link DVI.

You can also try the 925 MHz BIOSes, too.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#15
Ok, so I try flash this U2. When it's doesn't work I test next.
 
Joined
Apr 29, 2013
Messages
426 (0.25/day)
Likes
69
Location
Poland
Processor Intel Core i7-2600k @ 4,4 GHz
Motherboard Asus Maximus V Gene
Cooling Corsair H80i
Memory Corsair Vengeance 16 GB @ 1866 MHz
Video Card(s) EVGA GeForce GTX 980 Superclocked
Storage Corsair SSD Force GT 120 GB & Seagate Desktop SSHD 2TB
Display(s) BenQ XL2420T & BenQ T720
Case Fractal Design Define R5
Power Supply OCZ ZT 650W
Software Windows 10 Pro 64bit
#16
It's work! ;)
Thank you very much. U2 is Dual Link.
I changed to 120Hz and it's look great!

You make my day :)
 

cadaveca

My name is Dave
Joined
Apr 10, 2006
Messages
16,546 (3.87/day)
Likes
10,908
Location
Parkland County, Alberta
System Name Gamer
Processor Intel i7-6700K (ES)
Motherboard MSI Aegis TI
Cooling Custom Dragon Cooler
Memory 16 GB Kingston HyperX 2133 MHz C13
Video Card(s) 2x MSI GAMING GTX 980
Storage 2x Intel 600P
Display(s) Dell 3008WFP
Case MSI Aegis Ti
Mouse MSI Interceptor DS B1
Keyboard MSI DS4200 GAMING Keyboard
Software Windows 10 Home
#17
It's work! ;)
Thank you very much. U2 is Dual Link.
I changed to 120Hz and it's look great!

You make my day :)
Awesome, great to here you got it sorted. ;)