Hey guys, sorry once again for a late reply, I really do appreciate the help everybody has given me, running a few tests and here and there I have found that by tweaking the ram at best I have documented has seen a rough 3-5% increase. But obviously depending on the benchmark or test the results vary, and its extremely hard to keep results consistent as its measuring such a tiny difference and the smallest variable can throw off the results. So with that being said again at a later date Ill post my own findings once i'm not being blown up by the infinite ammount of uni work I have to do.
So my final overclocking specs are as follows:
CPU 4670k: 4.7 Ghz @ 1.35vcore with 45 cache multiplier @ 1.3v, 1.9v CPU input.
Ram G.Skill Trident X 2400Mhz: 1.65v (Stock) 2400 Mhz speed.
CAS: 9, TRCD 11, TRP 11, RAS 30 and CR 1T
I have run out of time for how much tighter I can get those timings but I am going to keep on pushing once uni concludes for this semester.
On a side note, has anybody here achieved a 4.8 GHZ OC with a 4670k I have read so many forums on the internet and read countless reviews, and other posts but for the life of me I cannot figure this out.
I can get 4.8 GHZ @ 1.43Vcore with 40 Cache multiplier @ 1.15v , Input voltage of 1.9-2. With these settings I can boot and post, I ran Aida 64 for 2 hours, I ran Intel burn test on maximum for 5 cycles, I ran Intel Extreme Tuning Utility for 20 minutes, I ran Passmark on 5 different tests, I also ran a benchmark of heaven for one full cycle and it held. Now the problem is when I run Cinebench it will run 2 instances in a row without fail but the third always blue screens my computer. Now I have found Cinebench to be the most accurate for testing stability, as If i crash in cinebench once out of 5 runs, that indicates that If i was to play rome total war 2 (my benchmark for stability game) it will crash within 2 hours. I found this out as I could pass all the above benchmarks with 4.7 Ghz at 1.31v but for it to pass cinebench 5 tests in a row it needed 1.36 and again it crashes with anything up to 1.35 the extra V was for my cache stability.
Now I have adjusted my ram frequency and after numerous tests I can confirm that the XMP profile or higher speed ram makes no difference to my stability. I have even tried raising my voltage from 1.43 where I can run rome for 2 hours stable to 1.48v and it still crashes.
Heat is not the problem I have a custom watercooling loop that keeps everything nice and cool and I monitor with openhardware and real temp and everything stays below 75 degrees.
So I am not sure what I might be able to tweak to hit 4.8 Ghz incase I have missed something? I was contemplating changing the CPU strap to aim for like 4.77Ghz but I haven't found much on the internet explaining how to do this as it gets complicated with its close interaction with the black strap which I don't really want to adjust to ruin my other parts. And I am sorry that, this post kinda hijacks my original post.
Once again thanks everybody for your help, let me know what you think of my timings and if you think I could get them lower which I should adjust, I found that CAS 8 was not achievable at that speed.