Quote Originally Posted by mjgr33n View Post
Hi, I am currently running 4 x G Skill F3-12800CL7-2GBECO dated 2010Oct in my Asus Sabertooth P67.

I need to run it at minimum 1.425v to operate at 1600-7-8-7-24-2T.

Here are the sub-timings that AIDA64 reports you need to run it best 7-8-7-24 (CL-RCD-RP-RAS) / 40-88-2-5-12-6-6 (RC-RFC-CR-RRD-WR-WTR-RTP).

I am running Write CAS Latency (tWCL) 7T and everything is great.

Not had great luck with overclocking 100% stable, but will report more if I do.
I let Prime95 ran for 6h and it was stable at rated 1600 7-8-7-24 with tCWL 8 at 1.35V. Maybe it's worth trying if you want to keep 1.35V. But I had no suck luck with tRCD 9 over 1866, I even tried some weird combinations like 11-9-11-40 but I cannot boot it at all. Can't complain that much considering I can get 2133 9-10-9-28 at 1.6V, and probably still a bit better (I'll find out later today, I hadn't previously tired to mess with tCWL, maybe it'll help me to get CAS 7 or 8).