Alec is right. 30 is typical for idle, about 100°F. My i5 goes at 72°C when at full load while running prime95. 72°C is the sweet spot and you want to shoot for when at 100% load.
i dont think u guys actually read what he wrote?
he said his idle temps are 50.....
try changing the fan speed to full ? im not sure, its weird how u have high idle temps and while still having stable load temps.
if ur ram can go to 1750 then why not go for it? xD
remember the idea of overclocking is the highest clock speed (within temperature range) with the lowest amount of voltage to still be stable.
if u run prime95 at 100% for 10 minutes and it seems stable, go ahead and lower ur voltage a little then do it again. if ur computer crashes then u need to increase the voltage or decrease clock speed.