Overclock.net › Forums › Graphics Cards › AMD/ATI › 6950 TF III Can't Stabilize Past 900MHz
New Posts  All Forums:Forum Nav:

6950 TF III Can't Stabilize Past 900MHz

post #1 of 24
Thread Starter 
New question, my 6950s don't seem to be able to OC past 900MHz, even at 1.215 VCore. They just lock up in any 3d app. Am I doing something wrong, I haven't even touched the mem yet.frown.gif
Edited by snelan - 6/4/11 at 9:13am
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
post #2 of 24
Thread Starter 
Ok, so now I have figured out that it is due to the 900MHz OC. Are some 6950s really that bad at overclocking? I had the fans at 80% so temps shouldn't be a problem.
Edited by snelan - 6/4/11 at 7:42am
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
post #3 of 24
Thread Starter 
Updated, new question.
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
post #4 of 24
Check to make sure your voltage is being applied with Afterburner. Force constant voltage.

Other than being a near dud of a card, I can't see any other reason why that would be happening.
    
CPUMotherboardGraphicsRAM
AMD 1055t Asus Crosshair IV Formula 2x Asus 6950(70) 4GB G.Skill Trident 
Hard DriveOptical DriveOSMonitor
64GB Corsair Force + Random rotating things Asus DVD Burner Win 7 64-bit Asus 27" LED 
KeyboardPowerCaseMouse
Saitek Cyborg Cooler Master 1000w Bronze HAF X Logitech MX518 
Mouse Pad
Razer Pro|Pad 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD 1055t Asus Crosshair IV Formula 2x Asus 6950(70) 4GB G.Skill Trident 
Hard DriveOptical DriveOSMonitor
64GB Corsair Force + Random rotating things Asus DVD Burner Win 7 64-bit Asus 27" LED 
KeyboardPowerCaseMouse
Saitek Cyborg Cooler Master 1000w Bronze HAF X Logitech MX518 
Mouse Pad
Razer Pro|Pad 
  hide details  
Reply
post #5 of 24
Quote:
Originally Posted by snelan;13748035 
Ok, so now I have figured out that it is due to the 900MHz OC. Are some 6950s really that bad at overclocking? I had the fans at 80% so temps shouldn't be a problem.

Basically, it comes down to luck of the draw. Although early reference cards were the bomb. Nevermind why I have 6 volterra 6950s, but I do and 5 of the 6 clock to 950/1450 at 1.17 and the last one only does 910/1410-ish. They're all flashed to 6970 bios. Basic plain jane reference cards have typically clocked exceptionally well. And ironically, customized cards like the lightning and tf series have fallen short.
Quote:
Originally Posted by iRaiden;13749130 
Check to make sure your voltage is being applied with Afterburner. Force constant voltage.

Other than being a near dud of a card, I can't see any other reason why that would be happening.

Voltage shouldn't be a concern because if he had a good card it would hit 900 core w/o any added voltage.
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
post #6 of 24
Quote:
Originally Posted by tsm106;13749135 
Basically, it comes down to luck of the draw. Although early reference cards were the bomb. Nevermind why I have 6 volterra 6950s, but I do and 5 of the 6 clock to 950/1450 at 1.17 and the last one only does 910/1410-ish. They're all flashed to 6970 bios. Basic plain jane reference cards have typically clocked exceptionally well. And ironically, customized cards like the lightning and tf series have fallen short.



Voltage shouldn't be a concern because if he had a good card it would hit 900 core w/o any added voltage.

I've also heard some pretty bad overclocking experiences with TFIII and DCII cards.

Just thought I would recommend it because my card wouldn't hit 880/1350 with stock voltage, yet I can get it at 925/1425 at 1.175.
    
CPUMotherboardGraphicsRAM
AMD 1055t Asus Crosshair IV Formula 2x Asus 6950(70) 4GB G.Skill Trident 
Hard DriveOptical DriveOSMonitor
64GB Corsair Force + Random rotating things Asus DVD Burner Win 7 64-bit Asus 27" LED 
KeyboardPowerCaseMouse
Saitek Cyborg Cooler Master 1000w Bronze HAF X Logitech MX518 
Mouse Pad
Razer Pro|Pad 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
AMD 1055t Asus Crosshair IV Formula 2x Asus 6950(70) 4GB G.Skill Trident 
Hard DriveOptical DriveOSMonitor
64GB Corsair Force + Random rotating things Asus DVD Burner Win 7 64-bit Asus 27" LED 
KeyboardPowerCaseMouse
Saitek Cyborg Cooler Master 1000w Bronze HAF X Logitech MX518 
Mouse Pad
Razer Pro|Pad 
  hide details  
Reply
post #7 of 24
^^That's a solid overclock though. smile.gif
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
post #8 of 24
Thread Starter 
Hmm, well I guess I'll just leave them at 900MHz then, it's not like I actually need to OC. I just wanted to confirm that this was a normal thing, not like a broken V regulator or something. Also, yes, I have forced constant and it does stay at 1.200 VCore.
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
post #9 of 24
Thread Starter 
Quote:
Originally Posted by tsm106;13749204 
^^That's a solid overclock though. smile.gif

Well, the stock for the TF III is 850MHz, so...
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
    
CPUMotherboardGraphicsRAM
i7 3770k Gigabyte Z77-UD5H-WB Golden GTX 670 Windforce 3X 2 x 4GB GSkill RipJawsX 
Hard DriveCoolingOSMonitor
OCZ Vertex 4 64GB- WD Caviar Black 1TB Noctua NH-D14 Windows 7 Dell U2311H IPS 
KeyboardPowerCaseMouse
xArmor iOne U9BL MX Blues Seasonic x750 LIAN LI PC-T60B Logitech G500 
Audio
Modded JVC HA-RX900 
  hide details  
Reply
post #10 of 24
Quote:
Originally Posted by snelan;13749222 
Well, the stock for the TF III is 850MHz, so...

Sorry, was referring to above posters 925/1425 from stock 800/1250 6950 overclock.
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
The 3930
(26 items)
 
Junior's 3930
(22 items)
 
DATA/HTPC
(20 items)
 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: AMD/ATI
Overclock.net › Forums › Graphics Cards › AMD/ATI › 6950 TF III Can't Stabilize Past 900MHz