Rig built, overclock tweaking advice

[DarthMurdicide]

Hello all, first post, did a lot of post reading, and people on this site seem a LOT more helpful than others I recently posted on...

Just finished my rig, first build in about 6 years since my Q9650. Already did my initial OC.

I have some questions below. In the meantime, here are my components. If you would like me to give additional info to help you answer my questions below, please let me know.

i7-4930K CPU
ASUS Rampage IV Black Edition MOBO
64GB GSkill 2133 mhz RAM
Cooler Master Nepton XL water cooling
Cooler Master HAF X case

Please see the screenshot below for the results of my first OC on this new rig. To summarize, first I loaded the XMP profile for 2133mhz (9-11-11-31-2T, 1.6v) and ran memtest86+ for 24 hours, no issues. Then, I changed the CPR multiplier to 44 and ran Prime95 small FFTs for 24 hours. No issues as well. Here were the results of running Prime95:

Core voltage 1.376v
Highest temperature 85c



So everyone, here are my questions:

1) Since I have 64GB of ram, am I correct in assuming that 4.4ghz with RAM running at 2133mhz is a pretty decent OC?
2) I gather from research that 85c may be a tad bit hot? Lots of opinions on the internet, some say 70c, some say 80c, saw people post as high as 90c is OK...what do y'all think? I don't think I'm comfortable with 85c for 24/7, although I know it won't constantly hit that because the only time I suspect it will is when I encode video, which won't be 24/7.
3) Based on me being concerned about the temp, what in your opinions should be my next step? I don't think I should try 4.5ghz at the current voltage. Maybe I should lower my voltage and try 4.4ghz again, and see what my absolute minimum voltage is before I attempt going higher than 4.4ghz? I suspect I'll need to have a lower voltage if I want to try 4.5ghz based on my current voltage and temp readings at 4.4ghz...
4) What about the memory, in your opinions, where should I go next? I read reviews of this kit, and I don't know whether or not with 64GB it will hit 2400mhz. Maybe I should look first at dropping the command rate to 1T, and run memtest86+ again? Or maybe I should consider first dropping the voltage to see what minimum it would take to run the RAM? Frankly I'm happy the kit runs at 2133mhz...maybe I should be satsified, but that's why we're all sick in the heads...we're NEVER satisfied!!

Your thoughts / comments / advice are appreciated tremendously. I am not a noob, and no expert either, but I think my initial OC is pretty decent since this is also my first time OC'ing this kind of chip (my last was a Quad Q9650!!) I can admit though that I am ignorant enough to not know which way to go next, so your opinion on my "next step" would be huge.

Thanks y'all!!

 

[Theocnoob]

Are you benching with this system? Because the minor tweaks you're talking about doing are a pain in the arse unless you're an OC afficionado, and they'll gain you almost inperceptible improvements in real world use. If you are using this system for benching, yes, OC the hell out of everything until it blows up, replace it, and blow it up again.

2133Mhz c9 64GB is impressive enough. Don't put even more strain and voltage demands on your CPU by forcing the IMC to address RAM @ such a high volume at even faster speeds.
What cooler are you using? You say Nepton but there are various such coolers. For such a high voltage you really ought to be running the 280 version. If you already are you don't really have anywhere to go in that direction, except that if you are currently running exhaust air through the rad you might want to try changing it to an intake.

If you do nothing, system will be fine. Keep the rad dust free and good air flow in your case and you will be ok for a long time. Your CPU is hot but it's not dangerously hot.
Play with the parameters that are playable-with atm without going nuts and see what you can do. But don't screw with the RAM IMO.

BTW- when you built this PC were you aware that Haswell-E was available? You could have gotten a 6 core 15MB L3 cache chip for $400. +M.2 +Sata Express +DDR4. Just sayin. Your computer is still awesome though.

 

[DarthMurdicide]

Thank you SO MUCH for your reply. I really appreciate your time.

I am using the Cooler Master Nepton 140XL. GREAT IDEA about changing the fans to intake on it. With the two 200mm fans I have on the top of my case for exhaust, that should be plenty of exhaust.

I am not benching, just getting a flavor of how strong the CPU might be. I am pretty happy with the results, and frankly my knowledge of the other voltage tweakings I can do is very limited. I agree that my RAM is pretty good as-is, and will leave well enough alone. The only thing I'll probably end up doing is dropping my vcore and see if I can still run error-free at like 1.275v, and if so, try 4.5ghz. Don't know why I'm fixated on hitting 4.5ghz, I guess I'm obsessive and nonsensical like that!

You are TOTALLY rubbing salt in the wound on the Haswell-E!! Man I about freaked when the octacore came out 2 weeks after I built my rig (I didn't do enough homework ). Maybe I'll take your advice and OC the hell out of it, blow it up, and replace it with X99!!

Shoot, that'd be a one-way ticket to Divorceville!! The old lady would kill me!

Thanks again, I appreciate you for your valued input!

 

[Theocnoob]

That cpu would really benefit from a 280mm cooler like an H110. You'd get better temperatures. I definitely wouldn't push the voltage any higher than you have it, but you may be able to tweak it for greater speed at that voltage.

Ya dude, research. It's critical. If the new stuff is coming out at a better price you need to wait for the new stuff. Coulda gotten a 5820K which is the same as your CPU + 3 extra MB of L3 cache for $400. Only caveat is that it has 12 less PCIE 3.0 lanes, but that's not a deal breaker by any means.