Hallo i have an old pc. Asus p5q with p45 chipset with 4 slots x2 giga ram = 8 giga ram and a new video card ati r7 260 x I have this pc except the video card for 5 years it is stable and it is work without problems. Now if i go to bios and put from the default nb volt 1.1 to 1.3 all my game s have +20 fps .(call of duty ghosts, battlefield 4) How it is possible and can i have my nb voltage at 1.3 if i have a fan aver the chipset? Is it safe?