GIGABYTE X99 SOC Champion overclocking guide for uncore and memory overclocking

Our technical marketing guru, Sofos, has put together an advanced overclocking guide based around uncore and memory overclocking using the GIGABYTE X99 SOC Champion motherboard and chipset so make sure you check this out if you are on X99 platform and need a few pointers.

1. Adjust the OC switch the position 2, otherwise you won’t have the voltages you need for Uncore and memories.
2. Voltages for Uncore
In the CPU Advanced Voltages, when you have the OC switch in the 2 position, you will see some extra voltages. VL1 to VL6.
You only have to change VL4, VL5 and VL6 as below.
The voltage you have to change to get higher uncore is mostly the VL6. Almost all the CPUs can do 1.45V, most of the CPUs can do 1.5V but some CPUs can do even higher Voltage. There are few CPUs that boot with lower than 1.45V though. If the CPU can do high VL6 then probably it can do and high Uncore but not all the times. It depends on the CPU. In the OS through GTL all you have to do is to raise the VRING to 1.45V-1.5V in able to get high Uncore.
Temperature also helps with VL6 and uncore. If you are using subzero cooling try to find ideal temperature for max VL6 value and then see how high the uncore will clock. VRING is another voltage option that helps some CPUs. Try 1.35v and if going subzero, test up to 1.55 to see if there is any scaling.

3. RTLs
You can change the RTLs but not manually only changing the IOLs manually. IOLs to 1 will bring the RTLs all the way down to what the board is capable of until now. You need to change the IOLs at every channel. Set the option at manual mode and change the primary and secondary timings only for channel A and then change the IOLs to each channel manually.


4. Use both 8pin and 4pin cables for CPU Power otherwise with heavy load the system maybe will be shutting down.

5. You don’t need extremely high VSA and VDIMM. VSA between +0.25-0.35V should be enough to drive the mems high. +0.25-+0.3V should max your mems on most cases. VDIMM 1.55-1.65V is ok. I was able to do even C11 with 1.6V.

6. Few times you will see codes like 72, 74, 50, 51, 60, 8A. Try to press the reset button few times. There’re times that doing it it passes the training. Especially when you change the RTLs and you get 8A try it for sure. It doesn’t happen on latest bios so often.

7. X99 MemTweak, GTL
Highest bootable VL6 cannot be overridden through software. Same value that your CPU won’t boot from bios if you set it through software it will shut down.

8. Please be careful! The VLs can affect your CPU cold bug so make sure that when you change you don’t hit the cold bug earlier than before. If you have this problem try higher or lower VL3 (usually higher helps). If VL3 doesn’t fix your problem then try the same for VL6.
Also, different bclk affects the cold bug too, so try this as well. Almost all the CPUs are ok with 127.5 bclk and PCI3.

9. Make sure that you’re using proper insulation around the memories area and also put some paper towel around the PCH cooler. The way that worked best for us was a layer of plastidip, then a layer of Vaseline and paper towel.

10. Always save a profile before you save and exit cause most of the times the only way to go back is the CMOS button.

11. For memory voltage we used up to 1.9V on single sided dimms on LN2 without a problem. But it doesn’t mean that all the dimms can handle it so be careful in case you don’t want to degrade or kill your memories. Dino was benching with 1.8V without any issue.


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