Guys be careful with ur C2 they are very strange, i benched 5540 6/12 with a cpu max vtt 1.35 and now can't boot at 5300 saved 5540 profile, both my chips are like this first was 5420 and now 5250 max, seems they don't like vtt higher than 1.20/1.25, a lot of problem under cold after they degraded ..
this is only for who goes crazy with memories not normal benching at low vtt and 24XX memories.