Buildzoid continues his work for the Gamers Nexus gang this week with a new video that takes on an eagerly awaited GTX 1070 Ti card. The card in question is in fact a Vulcan branded Colorful card. The GeForce GTX 1070 Ti series uses a new GP104-300 version of the Pascal architecture family so it’s interesting to see what the card vendors are doing with the new chip in terms of VRM design.
Buildzoid starts by identifying what he refers to as the minor VRM which powers the PCI interface and some internal GPU core PLLs. He then moves on to the more interesting VRMs which of course include the one used to the power the GPU itself. It’s a 12-phase VRM design that uses a doubling scheme. The card also has two phases for the graphics memory ICs. He goes on to explain how the VRM works, using a UP9511 voltage controller that is in fact pretty common on NVIDIA cards.
The verdict from an engineering perspective is that for a 1070 Ti card, the VRM is pretty much overkill offering ridiculous power capabilities and impressive efficiency. Buildzoid then goes on to point out the voltage read points of the card followed by a quick guide as to how to remove the limitations that NVIDIA impose on these cards. By soldering the shunt capacitors on the card, power limitations can be removed, opening the possibility for a limitless overclocking session.
You can catch the video from Buildzoid here on the Gamers Nexus YouTube channel.