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CD82

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Posts posted by CD82

  1. I imagined that people would like a vbios similar to the one I released for the Titan, so here you go.

    As I don't have 780 myself I'll need your feedback in order to adjust the mod in case something doesn't work as it should.

    (...)

    .

    To clarify some things - as boost is disabled clocks and voltage will be fixed in 3d mode. In all other performance profiles the card will behave just as the with the stock vbios.

    The main differences to the stock vbios is that there is no throttling.

    I flashed your modded BIOS on a pair of Gainward GTX 780 cards and everything is working fine.

    With the stock BIOS one card was limited to 1.187 V and couldn't go higher than 1164 Mhz. Now it reaches 1202 MHz at 1.212 V. The other card now tops out at around 1240 Mhz (which is kind of irrelevant since it is then slowed down by the first card). So big thanks for that.

    However, why did you lock voltages in 3D mode? Are there any stability issues when switching voltages at high GPU clocks? Because what I liked about the stock BIOS was that it would clock down if the load wasn't that high, and would reduce GPU voltage accordingly. Now my cards sometimes sit at 800-900 MHz (not due to throttling, just because I'm playing older games sometimes) but with full voltage applied. And since I use watercooling my temperatures are well below 50 °C and the boost would always use its maximum frequency. So by any chance could you also do a modded BIOS that has GPU Boost enabled* and still allows for 1.212 V / higher power target?

    And one more thing, is there any particular reason why your modded BIOS only works with EVGA Precision? MSI Afterburner allows clock adjustements but voltage control is completely screwed. It's no big deal since I switched to Precision anyway, but at first I was a bit stumped by Afterburner listing my GPU voltage at +255.

    Anyway, big thanks again for the modded BIOS!

    (so the cards downclock and reduce voltage even in 3D mode - I don't always need their full power, especially when playing games like Dirt and StarCraft...)

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