Hey Svl7, I tried this Lenovo_Y500_BIOS_v2.02_Mod - rev01.zip and the GPU 0 (main GPU) still have the +135MHz OC limit, as shown in EVGA Precision. The Y500 - Y400 - SLI 750m - 80.07.95.00.17 - OC.zip works fine for GPU 1 (secondary SLI GPU). What is weird is that before this GPU0 would go up to 1102MHz, but after flashing I believe it went up to 1189MHz in game. On the other hand, after flashing GPU1 would go above 1200MHz easily. After checking with Nvidia Inspector, both GPU 0 and GPU 1 has t