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Asus Platinum HD7970 Matrix OC issues

Discussion in 'Overclocking & Cooling' started by Paladone, Jan 27, 2013.

  1. Paladone

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    The two graphics cards that I have in my system are:
    Asus Platinum HD7970 Matrix 1100/1650 3GB - Stock core voltage of 1257mv
    XFX Radeon HD7970 925/1375 3GB - Stock core voltage of 1170mv

    Other system specs:
    i7 3770k OC @ 4.7Ghz (Confirmed stable)
    32Gb DDR3 RAM 2400Mhz
    128GB Samsung 840 Pro SSD
    1TB Caviar Black WD HDD
    Asus Maximus V Formula eATX Motherboard

    My drivers are up to date and my temps during the tests are normal.

    I decided that I was going to see how far i could push my GPU's on stock voltage. I started with the XFX card and was able to reach 1100/1525 at stock voltage. To confirm stability I ran and monitored a 10 minute Furmark 1080P Burn-in test and saw no problems at all.

    I then moved on to the Asus card. I started with the memory and was able to clock it at 1750 with no issues. When I started with something i deemed reasonable; 1200Mhz. The second I opened Furmark it crashed. I had to lower the core clock to 1170Mhz before I could even open Furmark. When I ran a Burn-in test I immediately got artifacts. I continued to drop the core clock and yet continued to get artifacts until I reached 1155Mhz. So I said "OK" and decided to try and push 1155Mhz with an increased voltage. No matter how high I increased the voltage the clock was not stable >1155. I've spent several hours doing research and trying to find the right combination of the two and have had no success.

    If anyone has any suggestions on how I may be able to push 1155Mhz, I would really appreciate it. :)
     
  2. cadaveca

    cadaveca My name is Dave

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    Voltage tweaking doesn't work on ASUS CUII and Matrix VGAs without Maximus V Extreme board, it seems(you need to plug cards into board and let board adjust voltages).
     
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  3. FR@NK

    FR@NK

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    Are you using asus gpu tweak to overclock? My Matrix card will do 1200/1750 on stock voltages.
     
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  4. Paladone

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    Yeah i am using Asus GPU tweak. I was able to clock my memory to 1750 but as i said, it won't go past 1150 :\ It doesn't really matter, it's only for the sake of benchmarks.
     

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