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Sapphire Dual-X 7950 Voltage Locked?

post #1 of 4
Thread Starter 
Is http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006 voltage locked? Can someone please explain how to adjust the voltage on this card (how should the "BIOS switch" be set, what software to use, etc)?
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post #2 of 4
Quote:
Originally Posted by Akumajou View Post

Is http://www.newegg.com/Product/Product.aspx?Item=N82E16814202006 voltage locked? Can someone please explain how to adjust the voltage on this card (how should the "BIOS switch" be set, what software to use, etc)?

no this card is not voltage locked. the user reviews on newegg confirm users hitting 1.2 Ghz with voltage tweaking. use sapphire trixx for voltage overclocking. At stock settings first test the card for stability using Heaven 3.0, 3D Mark 11, BF3. then max out power control or Board Power as its known in sapphire trixx to +20% . then test at 1 Ghz with stock voltage. after that increase clocks by 50 Mhz without increasing voltage. when you get artifacts or crashes the card is longer stable. increase voltage in small increments of 0.05v and test. Monitor GPU core and VRM temps in HWinfo32 . core temps below 70c and VRM temps below 90c is safe. Normally 1.15 Ghz is a good overclock. thumb.gif
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post #3 of 4
Thread Starter 
I'm not so sure those comments on Newegg are accurate. I certainly can't seem to get voltage adjusted no matter how I configure it. I've tried both 1 and 2 BIOS switch positions, latest Afterburner and latest official Trixx in addition to the unreleased beta, and none of them seem to have any effect on voltage. I can overclock to 1100 on the core with no voltage increase, so you'd think going from say 1125 voltage (in Afterburner) to 1300 would allow atleast a 50 increase, but no. Nor does going from 1250 voltage (Trixx's default voltage) to 1381... Sigh... Kinda disappointing...
My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 2500K @ 4.5GHz ASRock Extreme3 Gen3 Sapphire Vapor-X R9 290 @ 1115/1485MHz G.Skill 2x4GB 1866 @ 2133MHz 
CoolingOSMonitorPower
Cooler Master Hyper 212 Plus Windows 10 (x64) Asus VH236H XFX Core Edition 650W 
Case
Corsair 300R 
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My System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i5 2500K @ 4.5GHz ASRock Extreme3 Gen3 Sapphire Vapor-X R9 290 @ 1115/1485MHz G.Skill 2x4GB 1866 @ 2133MHz 
CoolingOSMonitorPower
Cooler Master Hyper 212 Plus Windows 10 (x64) Asus VH236H XFX Core Edition 650W 
Case
Corsair 300R 
  hide details  
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post #4 of 4
Quote:
Originally Posted by Akumajou View Post

I'm not so sure those comments on Newegg are accurate. I certainly can't seem to get voltage adjusted no matter how I configure it. I've tried both 1 and 2 BIOS switch positions, latest Afterburner and latest official Trixx in addition to the unreleased beta, and none of them seem to have any effect on voltage. I can overclock to 1100 on the core with no voltage increase, so you'd think going from say 1125 voltage (in Afterburner) to 1300 would allow atleast a 50 increase, but no. Nor does going from 1250 voltage (Trixx's default voltage) to 1381... Sigh... Kinda disappointing...

oh thats bad. anyway 1100 Mhz on stock voltage is not bad. how are your core and VRM temps under load in Heaven 3.0 or 3D MARK 11
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