Overclock.net › Forums › Graphics Cards › AMD/ATI › VDDC Offset -- Is this normal?
New Posts  All Forums:Forum Nav:

VDDC Offset -- Is this normal?

post #1 of 21
Thread Starter 
Hi,

I just overclocked my hd6950 gpu, and the GPU-Z sensor data is showing irregularities in VDDC voltage level:

Qt9i3.jpg

Is this normal behaviour?
post #2 of 21
definitely not normal look at your temps.. what drivers are you using?
ASUS X450JF
(7 items)
 
Desktop
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Processor i7-4700HQ X450JF NVIDIA GEFORCE 745M 8GB 
Hard DriveOS
1TB Windows 7 Ultimate 64bit 
CPUMotherboardGraphicsRAM
Intel® Core™ i5-760 Processor  GA-P55-US3L EVGA GeForce GTX 660 Ti CORSAIR Vengeance 8GB (2 x 4GB) 1600mhz 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 250GB WD Caviar® Green™ 1000GB Cooler Master Hyper 212 EVO Windows 7 Ultimate 64bit 
MonitorPowerCaseMouse
Acer GD245HQ 120HZ Corsair CX600 Corsair Carbide Series® 200R Razer DeathAdder 3500 DPI Gaming Mouse 
Mouse PadAudio
ROCCAT Sota Tt eSPORTS SHOCK 
  hide details  
Reply
ASUS X450JF
(7 items)
 
Desktop
(14 items)
 
 
CPUMotherboardGraphicsRAM
Intel Processor i7-4700HQ X450JF NVIDIA GEFORCE 745M 8GB 
Hard DriveOS
1TB Windows 7 Ultimate 64bit 
CPUMotherboardGraphicsRAM
Intel® Core™ i5-760 Processor  GA-P55-US3L EVGA GeForce GTX 660 Ti CORSAIR Vengeance 8GB (2 x 4GB) 1600mhz 
Hard DriveHard DriveCoolingOS
Samsung 840 Series 250GB WD Caviar® Green™ 1000GB Cooler Master Hyper 212 EVO Windows 7 Ultimate 64bit 
MonitorPowerCaseMouse
Acer GD245HQ 120HZ Corsair CX600 Corsair Carbide Series® 200R Razer DeathAdder 3500 DPI Gaming Mouse 
Mouse PadAudio
ROCCAT Sota Tt eSPORTS SHOCK 
  hide details  
Reply
post #3 of 21
Thread Starter 
Catalyst 11.9 (Driver Packaging Version 8.892-110914m-125030C-ATI)
post #4 of 21
Thread Starter 
So are these temperatures dangerously high or what? If so, then why aren't the fans blowing at max speed? (The fan speed is set as dynamic.)
post #5 of 21
Quote:
Originally Posted by Teddyhead;15432278 
Hi,

I just overclocked my hd6950 gpu, and the GPU-Z sensor data is showing irregularities in VDDC voltage level:

Qt9i3.jpg

Is this normal behaviour?

That's most likely throttling from temperature. Any of the 4 temps in the group breaking 100°C will trigger throttling by downclocking core/memory and voltage to prevent damage.

Back down the overclock with stock air cooling and manually raise the fan speed to 100%.
Edited by Ken1649 - 10/24/11 at 6:52am
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
post #6 of 21
Thread Starter 
Quote:
Originally Posted by Ken1649;15432650 
That's most likely throttling from temperature. Any of the 4 temps in the group breaking 100°C will trigger throttling by downclocking core/memory and voltage to prevent damage.

Back down the overclock with stock air cooling and manually raise the fan speed to 100%.

Ok, I did that, but the voltage is still unstable:

HFPRE.jpg

EDIT: The gpu is ASUS EAH6950 with DCII air cooling system.
Edited by Teddyhead - 10/24/11 at 7:14am
post #7 of 21
Thread Starter 
I just noticed that when I close the ASUS Smart Doctor application, the voltage sensor data becomes steady, even if the GPU Temp. #2 is over 100C degrees.
post #8 of 21
If you are using CCC to overclock, enable Overdrive and Power Control Settings +5% and another 5% if it still does it.

Please fill in your system specs from User CP > edit system
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
post #9 of 21
Thread Starter 
Which one would you prefer I should use to overclock: CCC Overdrive or ASUS SmartDoctor?
post #10 of 21
I'd suggest using CCC and Power Setting +20% with stock voltage what it can give you most stable highest OC clocks. Asus Smart Doctor, under settings will let to enable "Overclock Range Enhancement" and it increases the CCC max core clock to 1620 MHz and memory to 2500MHz. Using stock air cooler doesn't sound like a good idea to go that high or voltage more than 1.2v.
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
ケンジ
(16 items)
 
  
CPUCPUMotherboardGraphics
i7-3960X i7-980X GA-X79-UD7 / GA-X58A-UD9 7970 + 465 
GraphicsRAMRAMHard Drive
2x 6990 + 580 16GB 2133 MHz 24GB 2000 MHz 120GB x 2 RAID0 
Hard DriveHard DriveCoolingCooling
120GB x 4 RAID0 Raptor 300GB x 2 RAID0 CPU-370 CPU-370 
CoolingCoolingOSPower
VID-AR699 EK FB X58A-UD9 Win 7 Ultimate x64 1500W / 1250W+1200W 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › VDDC Offset -- Is this normal?