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[Official] Asus Rampage IV Black Edition Owners Club! - Page 643

post #6421 of 14753
Quote:
Originally Posted by cadaveca View Post

Prettyy sure Raja suggested 1.4V. Personally, I wouldn't go that high, and like to stay under 1.35V. I always err on the safe side though. 0.05V isn't enough to really matter in daily use for clocking unless you got a killer chip methinks.

Yeah that's what he said. -> "4.6GHz at 1.40V is doable using water cooling – we get loaded temps of around 80C on a good triple radiator water loop. For users with air coolers, we recommend a maximum of 1.30V for Vcore - of course this is dependent on the type of air cooler and its capabilities. Use a voltage that keeps loaded temps below 75 Celsius or so."

80c Full Load on a "Triple Radiator Water Loop"

I'm running a h100i and under full load 4.8ghz 1.405v I'm in the Mid 60s?!?! What gives?

Something isn't adding up here. thinking.gifdoh.gif
post #6422 of 14753
They must have had bad ambients, my 4930k didn't pass 65c with my loop at 1.42v and I forgot to turn plug in any of the fans lol. Having enough rad space for passive cooling is nice lol, I might try it next fall/winter. Definitely not in Florida summer though.
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post #6423 of 14753
Quote:
Originally Posted by yttocstfarc View Post

Something isn't adding up here. thinking.gifdoh.gif


You got a good chip, that's all. You don't know how lucky you are!


If Raja used 4960X, that explains some too. H100/H100i/H110 is not capable of keeping my chip under 75c @ 1.3V, nevermind 1.4V. I'm using an H80i right now, @ 1.28V, I get 78c loaded. Fan speed makes very little difference in temps.

So I think maybe some of these ES chips that he must have got, and I got...are either poopy, don't use solder for TIM...



or you got a fantastic chip.

I live in Canada... it's still winter...my ambient temperature is normally around 16c-17c.

And given how my poor chips work, the 4.3 GHz avg clocking as suggested by Raja makes sense too. And here you sit with 500 MHz more...
Edited by cadaveca - 3/12/14 at 9:35am
post #6424 of 14753
Quote:
Originally Posted by cadaveca View Post

You got a good chip, that's all. You don't know how lucky you are!


If Raja used 4960X, that explains some too. H100/H100i/H100 is not capable of keeping my chip under 75c @ 1.3V, nevermind 1.4V. I'm using an H80i right now, @ 1.28V, I get 78c loaded. Fan speed makes very little difference in temps.

So I think maybe some of these ES chips that he must have got, and I got...are either poopy, don't use solder for TIM...



or you got a fantastic chip.

He got a great one biggrin.gif that's for sure.
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post #6425 of 14753
Quote:
Originally Posted by szeged View Post

He got a great one biggrin.gif that's for sure.

Yes it seems I did. I knew when it went to 4.8 and was semi stable I had to have got a good one. The microcenter guy just reached in the pile...lol
So now the question is where to go from here? Drop back to say 4.5 4.6 find lowest stable voltage and call it good? Or keep going? Thoughts?
post #6426 of 14753
Quote:
Originally Posted by webhito View Post

Hi all!

I have been reading some mixed up comments regarding voltages and wanted to post mine, is there anything amiss? My cpu is clocked at 4.2 Just wanted to know if vtt and vccsa voltages are correct. Everything works fine, gaming wise it never fails, prime 95 also works however ibt crashes before one pass. ( I honestly don't care ).
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VCC is bit low for that speed (if LLC is at regular). 1.180 V is more likely to be perfectly stable. If IBT would crash at that voltage as well, it might be just a quirk of that particular CPU.
Quote:
Originally Posted by yttocstfarc View Post

Anybody in the club with a 4820k? If not here is what I've learned in the past week overclocking the new rig. I will tell my steps for overclocking and what results I found. Each time I upped the multiplier x1 I went back into the bios loaded optimized defaults, restarted then changed values and saved and exited.
I have 4820K. Can you check if your card is runing at PCI-E 3.0 standart? Look in NVidia inspector when card is at load.
Quote:
4.8 When I booted into windows I noticed that the core voltage was set at 1.536 and that didn't set well with me so I changed it to 1.4v and booted into windows and stability test for 30 mins and it passed. Temps stayed in the mid 60's never even thought about touching 70c. I left it there for a few days just running normal programs, watching YouTube, Netflix, Star Trek Online, Assassin's Creed 4 and during that time I had 1 game crash of AC4. So I bumped the Voltage to 1.405 and left it there. Stability tested that voltage the other night for almost 3 hours then AIDA64 reported a failure.
So here are my questions and maybe you guys can give me some clarity.

1. I was under the impression that I would probably hit a temperature wall with the H100i and that it couldn't keep up with the added frequency and voltage. At full load Aida 64 still mid 60c. What gives?
There is no temperature wall. There is only voltage that blows up your CPU and voltage that doesn't.
Quote:
2. How much higher on the core voltage can I go? In the Asus guide on ROG forum 1.4 was suggested not to go over for non extreme watercooling. I seem to be fine on temps.
1.300 V for safe overclocking. (Depends on LLC setting and cooling.)
Quote:
3. I haven't had ANY blue screens lock ups freezes etc. Only application crashes, Aida 64, Prime 95 listing errors, The new real bench V2 crashing. Normal or no?
Completely normal. When stuff go really strange, mostly related to RAM, it will shut down without any message.
Quote:
4. By the Ivy-e overclock guide 4.8ghz at 1.4v is only achievable in 2% of the CPU's tested. Did I really get that good of a chip?
That depends on minimal stable voltage required for 4.2. It's reasonable chip.
Quote:
5. So far 3 hours in a stress test (AIDA64) is the longest time I've been able to get the system to pass 4.8ghz @ 1.405 bios volts 1.424 under load voltage. It dosen't like Prime95 AT ALL. Only goes a few mins before showing an error.
Be careful with prime at these voltages. I'd try to find stable clock at these voltages ONLY when I'd have spare chip, or chiller. However I'm more interested in 24/7 overclocks at minimal power needed, and in settings that are comfy for CPU to be able to run stuff like prime for years without a glitch.
post #6427 of 14753
Thanks for the input! Yes I will ck that for you when I'm in front of my computer again. I want to say the answer is yes thou.

I will also try 4.2 and see how low I can get it stable and let you know.
Edited by yttocstfarc - 3/12/14 at 10:13am
post #6428 of 14753
Thread Starter 
Quote:
Originally Posted by yttocstfarc View Post

Thanks for the input! Yes I will ck that for you when I'm in front of my computer again. I want to say the answer is yes thou.

I will also try 4.2 and see how low I can get it stable and let you know.

I ultimately found I had to apply slightly more voltage to my CPU vcore to stabilize my RAM. Then again I'm running 64gb 2133 vs your 16gb so it shouldn't require much. I had to go from 1.25 to 1.265 left the comp on for about 3 days no 0 crashes w/ games on and vm's up. Dropped my LLC from 180% to 150% (might be 160% need to check)

I think the highest I can go is 4625mhz, from what I've seen @ 125 block, I haven't heard anyone mention 150 block in a long time, and the 150,160 and 170 blocks in the bios (profiles ) throw me off I haven't touched them but curious on what other blocks are usable w/ these chips.


Cad , higher blocks require slighlty less voltage correct? For the record I'm on 100 BLCK @ 4.5 2133 11-13-13-31 stable, I'm gonna try tweaking the timings down to 9-10-10-28 later.


From what I've read from Cve if I give the RAM a bit more voltage I can tighten timings a bit better correct? Since they're running @ 1.6 figured I could pump to 1.65 or 1.7.
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post #6429 of 14753
Quote:
Originally Posted by LunaP View Post

I ultimately found I had to apply slightly more voltage to my CPU vcore to stabilize my RAM. Then again I'm running 64gb 2133 vs your 16gb so it shouldn't require much. I had to go from 1.25 to 1.265 left the comp on for about 3 days no 0 crashes w/ games on and vm's up. Dropped my LLC from 180% to 150% (might be 160% need to check)

I think the highest I can go is 4625mhz, from what I've seen @ 125 block, I haven't heard anyone mention 150 block in a long time, and the 150,160 and 170 blocks in the bios (profiles ) throw me off I haven't touched them but curious on what other blocks are usable w/ these chips.


Cad , higher blocks require slighlty less voltage correct? For the record I'm on 100 BLCK @ 4.5 2133 11-13-13-31 stable, I'm gonna try tweaking the timings down to 9-10-10-28 later.


From what I've read from Cve if I give the RAM a bit more voltage I can tighten timings a bit better correct? Since they're running @ 1.6 figured I could pump to 1.65 or 1.7.

If this is a 24/7 type system, I'd be real careful tightening up RAM timings, that's a real good way to hose an OS. Not to mention you'll see very minimal gains if at all.

If it's bench rig, go for it. biggrin.gif
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post #6430 of 14753
Quote:
Originally Posted by Gunslinger. View Post

If this is a 24/7 type system, I'd be real careful tightening up RAM timings, that's a real good way to hose an OS. Not to mention you'll see very minimal gains if at all.

If it's bench rig, go for it. biggrin.gif

That pretty much sums up what I think. If you have an extra OS for clocking, do it, find it hardcore stable, then go with that clock.

as to BCLK needing less voltage...maybe. I am sure some chips are this way, since I have one that is.. but not all. Maybe the lower multi is just more stable. I like 4.5 GHz @ 125 since it's non-turbo, and perhaps turbo complicates things. I can't run my RIVBE as a 24/7 rig; just gaming - so the minor power savings offered means nothing.
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