vcore madness

Hmm... I need to raise my vcore to 1.85 for stability while rendering and prime95, but I need to lower it to 1.75 and 1.65 for stability in games and 3dmark.. this means.... what? I don't know what to really do.. get a new psu? mobo?

Don't know of a shortcut besides bios?

you got unstable system, lower overclock until it's stable

Sounds to me like overheating. Your CPU isn't stable with 1.75V, but overheats with 1.85V. Check the temps, make SURE it never hits 60C, preferably under 50C max load. Also, check the +5V voltage. If its much below 5V, you need a better PSU. Plug in the exta 4-pin ATX+12V connector to the motherboard if your power supply has it and your mobo has a socket for it.