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How to voltage unlock ASUS DCUII 7970 (willing to mod)

post #1 of 8
Thread Starter 

I bought the ASUS 7970 DCUII assuming their cards aimed at overclocking would...overclock. I was wrong. They voltage lock cards aimed at overclocking...okay, good job ASUS.

 

Anyway, I now am stuck with two of these bad boys. I'm itching to overclock them, so, how do I go about doing this?

 

They are locked by a physical chip on the PCB.

There are soldier points for voltage control, but they claim you need an ASUS ROG board to do this...as you can see I lack one of those.

 

So, enlighten me, someone must have found a way to get around voltage locks?

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post #2 of 8
Flahsing bios?
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

Flahsing bios?

to what? I've tried searching for people flashing these cards, but didn't find anything. 

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Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
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Triennial
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PowerMouse
6 Cell Li-ion 5200mah SteelSeries Sensei 
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Phenom II X6 @ 3.8 Core / 2.7 NB / 2.7 HT ASUS M4A89GTD Pro/USB3 Gigabyte WINDFORCE 3X 6870 952/1076 4GBs DDR3 G.Skill Eco 1450Mhz 7-8-7-24 
Hard DriveHard DriveCoolingOS
Boot/Main Drive : SSD Intel 320 120Gb Sorage : Seagate Barracuda ST31000524AS Spire Thermax Eclipse II Windows 7 Ultimate 64bit 
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Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
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post #4 of 8
You could damage it if it goes bad flashed
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post #5 of 8
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

You could damage it if it goes bad flashed

Im not understand what you mean.

 

Are you saying I should flash the bios? As far as I know, a BIOS flash for the 7970 DCU II doesn't exist, unless the Ghz bios supports it, which I doubt.

Or are you asking me if I have? because no, I haven't touched the bios.

If you are warning me, yes, I know, I could brick my cards with a bad BIOS. But, they are dual BIOS cards, so I think I'm safe.

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MonitorMonitorKeyboardPower
Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
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Triennial
(15 items)
 
Free Laptop
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Old Rig
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CPUGraphicsRAMHard Drive
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Blu-Ray Windows 7 Ultimate 64bit 1600 x 900 CM Storm Scout Cherry MX Black 
PowerMouse
6 Cell Li-ion 5200mah SteelSeries Sensei 
CPUMotherboardGraphicsRAM
Phenom II X6 @ 3.8 Core / 2.7 NB / 2.7 HT ASUS M4A89GTD Pro/USB3 Gigabyte WINDFORCE 3X 6870 952/1076 4GBs DDR3 G.Skill Eco 1450Mhz 7-8-7-24 
Hard DriveHard DriveCoolingOS
Boot/Main Drive : SSD Intel 320 120Gb Sorage : Seagate Barracuda ST31000524AS Spire Thermax Eclipse II Windows 7 Ultimate 64bit 
MonitorMonitorKeyboardPower
Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
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Cooler Master Haf X Generic ASUS Generic ASUS Turtle Beach PX5 
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post #6 of 8
Check this for voltage unlocking on hd 7970cu II http://hardforum.com/showpost.php?p=1039233414&postcount=838 or you can flash it to Asus HD7970 matrix bios


Also read this http://hardforum.com/showthread.php?t=1760239
Edited by PontiacGTX - 7/26/13 at 11:28am
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post #7 of 8
Thread Starter 
Quote:
Originally Posted by PontiacGTX View Post

Check this for voltage unlocking on hd 7970cu II http://hardforum.com/showpost.php?p=1039233414&postcount=838 or you can flash it to Asus HD7970 matrix bios


Also read this http://hardforum.com/showthread.php?t=1760239

I don't have the "top" version of this card, so according to the second link, I can't flash to a Matrix. Also, somebody said the voltage control wasn't really voltage control.

 

I've actually read both those threads and decided to write them off as there is conflicting information (some report working, others report not working).

 

I'll check my max overclock on stock volts, then use the old GPU Tweak, then report back with my new (or same) max overclock when I return home from errands.

I might even try the MATRIX bios. We'll see how edgy I'm feeling.

Triennial
(15 items)
 
Free Laptop
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Old Rig
(16 items)
 
CPUGraphicsRAMHard Drive
I7-740QM GT 330M 4GB DDR3 1033Mhz Intel 320 120GB 
Optical DriveOSMonitorKeyboard
Blu-Ray Windows 7 Ultimate 64bit 1600 x 900 CM Storm Scout Cherry MX Black 
PowerMouse
6 Cell Li-ion 5200mah SteelSeries Sensei 
CPUMotherboardGraphicsRAM
Phenom II X6 @ 3.8 Core / 2.7 NB / 2.7 HT ASUS M4A89GTD Pro/USB3 Gigabyte WINDFORCE 3X 6870 952/1076 4GBs DDR3 G.Skill Eco 1450Mhz 7-8-7-24 
Hard DriveHard DriveCoolingOS
Boot/Main Drive : SSD Intel 320 120Gb Sorage : Seagate Barracuda ST31000524AS Spire Thermax Eclipse II Windows 7 Ultimate 64bit 
MonitorMonitorKeyboardPower
Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
CaseMouseMouse PadAudio
Cooler Master Haf X Generic ASUS Generic ASUS Turtle Beach PX5 
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Triennial
(15 items)
 
Free Laptop
(10 items)
 
Old Rig
(16 items)
 
CPUGraphicsRAMHard Drive
I7-740QM GT 330M 4GB DDR3 1033Mhz Intel 320 120GB 
Optical DriveOSMonitorKeyboard
Blu-Ray Windows 7 Ultimate 64bit 1600 x 900 CM Storm Scout Cherry MX Black 
PowerMouse
6 Cell Li-ion 5200mah SteelSeries Sensei 
CPUMotherboardGraphicsRAM
Phenom II X6 @ 3.8 Core / 2.7 NB / 2.7 HT ASUS M4A89GTD Pro/USB3 Gigabyte WINDFORCE 3X 6870 952/1076 4GBs DDR3 G.Skill Eco 1450Mhz 7-8-7-24 
Hard DriveHard DriveCoolingOS
Boot/Main Drive : SSD Intel 320 120Gb Sorage : Seagate Barracuda ST31000524AS Spire Thermax Eclipse II Windows 7 Ultimate 64bit 
MonitorMonitorKeyboardPower
Samsung SyncMaster 2233sw 21.5" 1920x1080 Gateway HD2200 24" 1680x1050 Generic ASUS Corsair TX750 
CaseMouseMouse PadAudio
Cooler Master Haf X Generic ASUS Generic ASUS Turtle Beach PX5 
  hide details  
Reply
post #8 of 8
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