Overclock.net › Forums › Graphics Cards › NVIDIA › NVIDIA Drivers and Overclocking Software › GTX 780 voltage increase not helping OC
New Posts  All Forums:Forum Nav:

GTX 780 voltage increase not helping OC

post #1 of 8
Thread Starter 
I recently got an ASUS GTX 780 DIrectCUII, and I've been trying to max it out since then. I started off by flashing Skyn3t's v.3A bios for the ASUS version of the 780. That unlocked voltges up to 1.212V.
The problem is, I can get the card fine up to 1176MHz, even at the stock 1.5V. I can increase the voltage up to 1.212V, but I can't up the frequency at all, the game would just crash. One note: the card is stable up to about 1280MHz in Heaven/Valley, but crashes at anything higher than 1176MHz in BF4, which I'm using as a "stress test".
Any ideas of what could be the issue?
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
post #2 of 8
Some cards just dont overclock as well as others unfortunately =\

1176 is a decent clock for those volts, the only down side to your card is it uses a non reference pcb, so you cant use the msi afterburner softmod to unlock even higher voltages to overclock more frown.gif
LEGION
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 6700K ASUS Maximus VIII Impact EVGA GTX TITAN X G.skill 16gb 3200 ddr4 
Hard DriveHard DriveHard DriveCooling
Samsung 840 pro 250gb Samsung 840 evo 250gb Samsung 840 evo 250gb Ice kings magic. 
OSMonitorKeyboardPower
WIN 10 Wasabi Mango 42" 4k Corsair k70 EVGA 1000w P2 
CaseMouseAudio
Caselabs Mercury S3 Razer naga :( sennheiser HD 558 
  hide details  
Reply
LEGION
(15 items)
 
  
CPUMotherboardGraphicsRAM
I7 6700K ASUS Maximus VIII Impact EVGA GTX TITAN X G.skill 16gb 3200 ddr4 
Hard DriveHard DriveHard DriveCooling
Samsung 840 pro 250gb Samsung 840 evo 250gb Samsung 840 evo 250gb Ice kings magic. 
OSMonitorKeyboardPower
WIN 10 Wasabi Mango 42" 4k Corsair k70 EVGA 1000w P2 
CaseMouseAudio
Caselabs Mercury S3 Razer naga :( sennheiser HD 558 
  hide details  
Reply
post #3 of 8
Thread Starter 
Quote:
Originally Posted by szeged View Post

Some cards just dont overclock as well as others unfortunately =\

1176 is a decent clock for those volts, the only down side to your card is it uses a non reference pcb, so you cant use the msi afterburner softmod to unlock even higher voltages to overclock more frown.gif

But what I don't understand, is how can the card be stable at 1176MHz/1.15V and not work at all at 1202MHz/1.21V? Shouldn't voltage help make the card stable? tongue.gif
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
post #4 of 8
Silicon lottery, my friend.

Its a tough, tough world out there.
post #5 of 8
Thread Starter 
I guess you're both right then ;( thanks for the quick replies tongue.gif
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
New rig
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k ASUS Sabertooth z77 ASUS GTX 780 DirectCUII 16GB (4x4GB) Corsair Vengeance 
Hard DriveHard DriveHard DriveOptical Drive
OCZ Agility 3 240GB (OS) Seagate Barracuda (2TBx2) RAID 0 Western Digital Black 2TB (Backup) Sony DVD Writer 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windows 7 Ultimate x64 Yamakasi Catleap 2560x1440 Logitech G510 
PowerCaseMouseMouse Pad
Corsair AX850 Coolermaster HAF 932 Advanced Logitech G700 SteelSeries mouse pad 
Audio
Logitech Z623 2.1 
  hide details  
Reply
post #6 of 8
Trust me my friend, its not that simple. I am at 1.238V on my GTX 770 MSI Gaming @1333Mhz or +136 on core. If I go 1.250V and +150 on core, it crashes. Overclocking is not logical or mathematically definite.
post #7 of 8
What overclock program are you using. I think they fixed the issue but for a while I was only able to get true 1.212 volts from asus gpu tweak verified using a voltage meter. I think since then they have fixed bios update where afterburner should work. I hate suggesting trying asus gputweak as msi afterburner is way better but might be worth a shot.
Also as some as stated its luck of the draw and cards may hit a wall eventually regardless of voltage increase. BF4 is kinda buggy still and not the best stress tester out there. Maybe your 1176mhz at 1.15 isn't truly stable. Just putting that out there. 1200mhz game stable is probably best case scenario at 1.212 volts from the two cards ive played with and ffrom what ive seen online.
post #8 of 8
I am using afterburner 16 Beta. There is a simple mod tweak, allowing you to unlock voltages up to 1.300V.
New Posts  All Forums:Forum Nav:
  Return Home
Overclock.net › Forums › Graphics Cards › NVIDIA › NVIDIA Drivers and Overclocking Software › GTX 780 voltage increase not helping OC