AMD Llano Extreme Overclocking on Gigabyte A75-UD4H
Category : Extreme
Published by Christian Ney on 27.01.12
There is a Llano competition running at the moment on HWBot.org sponsored by Gigabyte called ''GIGABYTE X'MAS & New Year Contest''. And at ocaholic we are proud to show you how the young professional overclocker Christian Ney set up his system with the ambitious goal to lead the competition and break two World Records at once.





Test Setup



Motherboard Gigabyte GA-A75-UD4H
Processor AMD A8-3870K Black Edition
Memory GeIL Evo Corsa 16GB 2400MHz CL11 (only used one module)
Thermal Compound GELID Solutions GC-Extreme
CPU LN2 Pot Otterauge LN2 Container Rev 4a
Thermometer Voltcraft K102  + 2x K Probe
Memory LN2 Pot Christian Ney's experimental LN2 Container
Graphics Card Asus Radeon HD 5550
Power Supply Seasonic X-Series 750 Watts
Hard Drive OCZ Vertex 2
Cooling Liquid Nitrogen


What you need

  • Thin screw driver
  • Cutter and Scissors
  • Art eraser/rubber
  • Paper towel
  • Armaflex/Neopren
  • Fans
  • Liquide Nitrogen
  • Thermos/LN2 Containers


    Page 1 - Test System and What you need
    Page 2 -Prepare the board for Extreme Overclocking
    Page 3 - Final shots and Results


    Discuss this article in our forums. [pagebreak]

    Prepare the board for Extreme Overclocking

    After having done some testing on air and setting up the operating system we are good to unmount the rig and start to prepare the motherboard for extreme temperatures. First of all on AMD motherboards we need to remove the heatsink mounting bracket and the mounting kit.





    Then with the help of a thin screw driver we put cropped sheets of paper towel between the chokes and output capacitors like on the picture below.





    The same we do for all the other chokes and capacitors around the CPU socket.





    This step is not always needed, but in this run we also want to cool the memory using Liquid Nitrogen. In this case one also needs to insulate the DIMM slots. Again, we did this, using a thin screw driver, to put cropps sheets of paper towel between the DIMM slots as you can see from the pictuers below. Finally we spanned the paper over the DIMM slots not used during overclocking.





    In a next step we insulate the area around the DIMM slots. We also use paper towel betweent the ATX12V connector and the last DIMM slot. To make sure that the paper rests in place, we use adhesive tape to fix it to the board.





    The area around the DIMM slots close to the top edge of the motherboard is being insulated using art eraser.





    Now it is time to use some neopren. Take a piece of neopren and cut holes to make it to fit the motherboard well. Don't forget to drill holes where the thread bars will be mounted to afterwards put the pot in place.





    Now we need a second piece of neopren to fit the base of the LN2 pot this time. Again don't forget to cut holes for the mounting kit.





    The top edge of the motherboard we insulate with art eraser as well as the base of the VRM's heatsink to avoid condensation issues.





    On the back of the motherboard you will need a sheet of neopren, which has the size of the board's PCB to avoid condensation. You also need to drill another four holes in it.





    Now we are ready to apply the thermal compound on your processor and fit the LN2 pot.





    Here we go, you are ready to break records and have lots of fun. Yes, the memory LN2 cooler is in a highly experimental stage. It is made of a "fries tray".







    Page 1 - Test System and What you need
    Page 2 -Prepare the board for Extreme Overclocking
    Page 3 - Final shots and Results


    Discuss this article in our forums. [pagebreak]

    Final Shots and Scores









    So here we go: the goal of this short session were the following world records:



    Motherboard Reference Clock 183.02 MHz with Sapphire Pure Platinum A75
    Processor Frequency 5900.5 mhz with AMD A8-3870K
    Memory Clock 1502.8 MHz with Kingston HyperX T1


    To be honest I failed concerning the reference clock record. My chip didn't do more than 171 MHz so I was far away from the record and did even worse than other overclockers on air.

    On the other side it went well for the other two records I wanted to beat. First of all my chip did 5'900 MHz easily at "only" 1.8 volt. Afterward some more tweaking and fiddling about I managed to hit 6'067 MHz which is now the new processor frequency world record on AMD Llano and the first Llano ever over 6 GHz. Of course the CPU was constantly maintained at -196°C during the entire session. That's what LN2 is good for!





    Breaking the memory record was way harder. It took me about an hour to break Morstiboy's record which he did with the famous 1 GB Kingston HyperX T1 memory that have excellent BDBG chips. I used a 4 Gigabyte Module with which it is quite a bit tougher to get frequencies above 3 GHz (effective clock speed). The memory kit I used here is a Quad Channel 16GB Evo Corsa 2400 MHz CL11 from GeIL powered by Hynix H9C chips. It scaled quite well with voltage tweaking and cold. The frequency achieved was 1513.6 MHz driving the memory with 2.1v and cooling it at -146°C.





    Big thanks to GELID Solutions for the GC-Extreme thermal compound and GeIL for the Evo Corsa memory kit.



                 


    Update ///



    Related news:


    On hwbot.org
    On Gigabyte's blog Tech Daily


    Wow, what a great comp! Christian Ney smashes all Llano records to oblivion!


    HWBOT.ORG’s competition called GIGABYTE X'MAS & New Year Contest just finished with Christian Ney from Switzerland absolutely smashing all scores in style.

    Hardware used:

  • GIGABYTE GA-A75-UD4H
  • AMD A8-3870K 'Llano' CPU
  • Geil Eva Corsa RAM
  • Both RAM & CPU Cooled with LN2
  • Records achieved:

  • World Record Llano Reference Frequency at 200MHz
  • World Record Llano Memory Frequency at 1752.8MHz & 2nd highest overall global RAM frequency achieved! WOW!!!
  • World Record Llano CPU Frequency at 6067.71MHz (also well done to Tsunamijuan and _mat_ for reaching past 6GHz
  • Overclockers are super-nerds and what better way to express happiness than to load up some old school MC Hammer in your submission posts, love it. Christian Ney says… U Can’t Touch This







    Page 1 - Test System and What you need
    Page 2 -Prepare the board for Extreme Overclocking
    Page 3 - Final shots and Results


    Discuss this article in our forums.

    Author: Chrictian Ney c.ney@ocaholic.ch