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HD 5870 Overclock help

post #1 of 2
Thread Starter 
Hey all

I have a issue/question regarding my XFX HD 5870.

I have been having an issue with my card when adjusting the Volt for overclocking. No matter what I do the MSI Monitoring will display a value of 1.149V on the card. I have tried flashing different BIOS to the card with different Volt values for 3d mode etc, also adjusting the Volt with MSI Afterburner after unlocking voltage control and no matter where I slide the bar it will still remain at 1.149V even while gaming. This is annoying because if I try to OC the card beyond 900/1250 I usually get screen freeze followed by "driver has stopped working". I suspect this to be due to the card not being able to get more than 1.149V. When checking voltage using GPU-Z both VDDC and VDDCL are showing 1.1500 V

What Am I doing wrong? How can I overclock the core clock into the 970-1000mhz region without suffering from screen freezes while gaming?

I have a AC Twin Turbo Pro cooler installed and the card is very cool at all times (never passes 57c even with full load so its defenetly not overheating issue. The temps on the Vrams are very good as well..

The card I have is a XFX HD 5870 1GB and im 99% sure its a reference card so it should allow voltage adjustments. So far I have tried the Asus and Msi bios on it to unlock the oc limit for core and mem that xfx bios has.

Has anyone experienced similar issues?
Onox
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 Asus P5Q Radeon HD 5870 Corsair Dominator DDR2 1066mhz 
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Windows 7 64 Ultimate Samsung 24 P2450 Logitech G15 Corsair 750W 
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Onox
(13 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core 2 Quad Q9300 Asus P5Q Radeon HD 5870 Corsair Dominator DDR2 1066mhz 
OSMonitorKeyboardPower
Windows 7 64 Ultimate Samsung 24 P2450 Logitech G15 Corsair 750W 
CaseMouseMouse Pad
Acase Twin Engine Microsoft Sidewinder Steelseries 
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post #2 of 2
Post a pic of the card and ill tell you if it reference or not.

You have to edit the cfg file in msi ab to allow for unoffical overclocking, did you do that yet?
New
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2500k @5ghz Asus P8P67 Evo 6970 @ 1000/1450 8GB Ripjaws DDR31600 Cas8 
Hard DriveCoolingOSMonitor
Samsung 850 Pro 128GB + WD 1TB XSPC Rasa,RX360,D5 w/EK top,Ek150 res,AP-15's 7 Pro Asus VW266H 
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New
(11 items)
 
  
CPUMotherboardGraphicsRAM
2500k @5ghz Asus P8P67 Evo 6970 @ 1000/1450 8GB Ripjaws DDR31600 Cas8 
Hard DriveCoolingOSMonitor
Samsung 850 Pro 128GB + WD 1TB XSPC Rasa,RX360,D5 w/EK top,Ek150 res,AP-15's 7 Pro Asus VW266H 
KeyboardPowerCase
G11 AX850 Corsair 800D 
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