Been out of the CPU overclocking world for awhile. In fact, the last overclocking I did was an AMD K6. So, yeah, it has been about 20 years! I bought a Powerspec G419 ( from Microcenter.... I know I know) because it had the Asrock Fata1ity Z270 mobo, and that seemed to be a step above what most pre-built PCs came with. it also came with a set of 3200MHZ Ripjaws -- although they are the 16-18-18-38 variety. Amazingly enough, the stock build came with a Hyper EVO 212. Knowing next to nothing about modern OCing, I set the machine to 4.7GHZ the first day I had it using the UEFI automatic OC pre-sets.
Why am I posting here? From what I can tell from the statistics posted in this thread, I may have blindly stumbled across a fairly good 7700k. I don't yet have the batch number (anyway to find it short of removing the CPU cooler and looking at the die?), but I'm at 4.9Ghz with no AVX offset VCORE was set to 1.28 with an LLC setting of 2. I ran about 2 hours of Realbench and HWMonitor actually shows my VCORE was at 1.26. Highest temp was 81c on Core 1 whereas Core 2 never went above 70c. The other two cores were at 77c & 78c respectively. I did remove the Hyper EVO and replace the stock thermal paste with Arctic Silver 5 (which doesn't seem very loved around here) as I used the original Arctic Silver on my AMD K6. Like I said, it has been 20 years -- even though I'm in my early 30s (I started young!!!).
I know up to 10c variation is fairly normal, but I bet I could do a better job of applying the thermal paste. I did use the thermal paste remover and purifier from Arctic Silver before applying the thermal paste. I followed the thin line over the cores instructions. My idle temps are around 25c-28c with an ambient temp of 25c.
I just purchased a H100i v2 and a Fractal Design R5 case. I chose the R5 over the Corsair Obsidian 750D high-airflow version. I stupidly didn't realize that mis-matched RAM could be a problem so when I bought a set of Geil Evo Forza 3200MHZ it doesn't play nicely with the Ripjaws. Best I can do is 2900MHZ, but I managed to lower the timing down to CAS 15. Although the Z270 Fata1ity is a great board, I recently purchased an Asrock Taichi Z270. I was torn between it, the Asrock Fata1ty I7 Professional Gaming, and the MSI X Power Gaming Titanium. I need at least 8 SATA ports (with 10 being even better), but my options were quite limited. I considered getting an ASUS Maximus Formula or Gigabyte Aorus and adding a SATA RAID card, but I thought better of it.
So, here's the point of my thread pollution: I have a couple of questions before I complete the "move" to the R5 case.
1. Should I stick with the Fata!ty K6, or roll with the new Taich? Other option would be to return the Taichi for the I7 Professional Gaming or consider something like the MSI Gaming Titanium, an ASUS board, or something altogether different? Before I went with the Microcenter pre-build, I strongly considered an X99 build with a 6850K. But, I was worried as I had not built a computer since I was 13, so I wanted to see what the learning curve was like, and the Powerspec was a great deal for an I7-7700K, GTX 1070, Asrock Fata1ity, etc. And, I wanted dual M.2 slots as I'm planning to run two Samsung NVME drives in RAID 0. Currently have a 500GB 960 EVO along with 4 SATA SSDs in RAID 10.
2. Considering the 4.9GHZ OC at 1.26/1.28 VCORE with temps 80c or below while looping RealBench, what are some opinions on whether or not the H100i v2 is a good choice for liquid cooling? My goal is a stable 5.0 or 5.1GHZ OC. I have also considered purchasing a delidding tool and delidding, but I don't want to get too far ahead of myself just yet. But it seems quite simple.
3. Should I purchase a new matched set of RAM, keep what I have at 2900MHZ with CAS 15, or get another set of the Geil Evo Forza? The Geil's by themseilves in dual channel mode do 3200MHZ with 15-16-16-36-1T, so a can buy another set (Newegg was OOS for about 7 days), and see if they work at 3200MHZ with all 4 sticks or RMA the new ones and go in a different direction. I absolutely massacred the heatsink on one of the Geils. I literally ended up having to break it off at the top it was so mangled. I am going to replace the heatsink and I'm also adding a Corsair RAM cooler although I realize it isn't likely to do much. The RAM is passing Memtest86 just fine how I have it. If you do buy a set of Geil Evo Forzas you have to be as gentle as you would be with a newborn infant. My 4 year old could have bent the heatsink in half with one finger. They are that fragile. From research, I've determined they are Hynix sticks, so I'm not planning to try an OC much above the 3200MHZ. At CAS15 they are OK for me. If I could do it all over again I'd have just gotten a set of 3200MHZ Trident Zs @ CAS 14, but with current DDR prices I really don't want to drop $320 on them.
4. Final question to wrap up this e-novel that I've poured my heart and soul into: the pre-built came with a EVGA 750 BQ bronze power supply. It is semi-modular. I just pulled the trigger on an EVGA 850 G3 Gold power supply. I am running the 7700K, a GTX 1070, a Blu-Ray drive, 4 SATA SSDs, soon to be 2 Samsung NVME drives, Corsair H100i v2, 4 sticks of RAM and about 4-5 120-140mm case fans along with the two fans on the Corsair cooler. Should I just stick with the 750, or with my OC, full memory banks, and all those drives is the 850 the correct choice? Zero plans for SLI unless a GTX 1070 was suddenly 125 dollars.
Any thoughts on the questions I have? I realize there is a broader forum here, but I've been reading this thread for about two weeks, so I know you all know your stuff. I wanted to avoid the: "gee durrrr get a Ryzen" crowd and ask people with experience on this platform even though it is so very new I'm sure a lot of you came over from the Z170 or X99 side and some of you have probably had more than 1 Z270 board already!
Edited by Forecast - 4/28/17 at 11:55pm