Overclocking Advice 3770k

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aps_88f3

aps_88f3

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Nov 9, 2012
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Hi everyone, I've mostly been a quite reader of the forum but have decided to post my overclocking experience in order to share information as well as gain some help from the community. This is my first time overclocking. Firstly my system specs are as follows:

i73770k
ROG Maximus V Formula Motherboard
Corsair 2133DDR3 16GB 1.5V
Corsair H100i Cooler push/pull
SP 120 fans

I have had my system for about 8 months now and decided to begin overclocking. I used to have a HAVIK140 CPU cooler and I played around a little with the auto CPU level up option and obtained a modest 4.2Ghz with temps jumping to low 80's after running prime95 for about 10 min. Little over a month ago I installed the h100i cooler with a push/pull config. I know it may not be the best but I applied arctic silver 5 as I already had it, and let it cycle over 200hrs of booting and normal operating time. Now I have decided to begin overclocking. I have followed a guide online which talks about overclocking to 4.7Ghz. I am currently at 4.5Ghz and after runnning prime95 for about 15 minutes my max temperature was 77 degrees Celsius. The fans only the h100i cooler are only operating at 1000rpm as I am a bit of a quite freak. I have manually adjusted the volts in the BIOS to 1.280V. Computer seems to be operating fine. My questions are as follows:

Are these temperatures and voltages reasonable? I have uninstalled AI Suite II as i found it was bugging and giving me warnings for temp, volt, and fan speeds even when everything was at stock speeds. I have made all adjustments in the BIOS. Now, I am using Core Temp 1.0 RC5 and VID at 4500Mhz is 1.240v, and at 1600Mhz is 0.8956v. However CPUID ROG CPU-Z shows 1.280V at 4500Mhz, is this normal? Also, if any monitoring programs are better please let me know. Am I able to increase the clock speed higher? I do plan to have this PC for a few years so don't want to go overboard. Also, my ram is 2133DDR3 but I have it only set at 1600Mhz. Does ram speed affect cpu clock speeds? Like I said I am new to overclocking and any input from experienced users with same or similar setup would be much appreciated. I do use some autodesk modeling software as well as play some games however I am not going to use these as an excuse as to why I am overclocking. Basically I want to see what my system is capable of. Also if there is any info I have left out please let me know. Thanks in advance :)
 
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4Ryan6
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4Ryan6

4Ryan6

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Welcome aps_88f3

Everything sounds really good at 4.5ghz and really there's not much advantage at running any higher than 4.5ghz anyway, with the cooling you're running to go higher will take more voltage and produce more heat.

It's nice to see you're running your memory at 1600mhz too as the 3770Ks on board memory controller is optimized to run at 1600mhz so you are not overclocking the memory and adding that extra heat to the CPU, plus adding longevity to the CPU by not overclocking the controller.

Looks good to me!

 
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aps_88f3

aps_88f3

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Nov 9, 2012
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Thanks for your response! Just one quick question. In my BIOS my voltage reads 1.290V however I have it set at 1.280V. Also, My desktop CPU-Z reads 1.288V. So which would be more accurate? From my understanding 1.3V is the limit to remain on the safe side, so hovering just below this am I able to keep my current settings? Thanks again
 
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4Ryan6

4Ryan6

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CPU-Z will give you a very accurate operating system voltage reading however depending on your overclocking settings you will see a voltage fluctuation between idle and load.

You can always go back and retest adjusting your voltage lower and see if you can stabilize at 4.5ghz at a lower voltage, I think I'm running 4.5ghz at 1.150v so my voltage is much lower than yours.

Now if you are running multiple graphics cards, you would need the extra voltage to stabilize, but a single discrete graphics card shouldn't require as much voltage as you're running, so what is your graphics setup?
 
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aps_88f3

aps_88f3

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I have a single GeForce Gtx 690. I do plan on adding another one in the near future. It is not overclocked
 
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4Ryan6

4Ryan6

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Then you really should be able to drop that CPU voltage down and get even cooler running load temps, especially with the motherboard you're running.

At least try 1.150v, and I did double check my BIOS settings to see what my CPU voltage was actually set at, I'm running a 3770K on an ASUS Sabertooth Z77 motherboard.
 
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schmuckley

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As Ryan has said...try dropping the voltage.
I'd use offset and do it in increments of 15..
until you get to that point where you have to probably reset cmos :D ..then bump it back up some.
be sure and save profile each boot :)
 
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aps_88f3

aps_88f3

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Hey so I have been playing around with the voltages. I went down to 1.190V and within 15 seconds of running prime95 i got BSOD. Lol. No idea how your running 1.150V. Same thing happened at 1.200V. So I've gone up to 1.220V and after running prime for about 5 min it stopped working and had to close the program. Computer didn't crash, just prime stopped working. So now I set it at 1.240V and after running prime for about 10 min it seems to be fine. Temperatures are are a little lower, max was 74 degrees Celsius vs 77. It may not be as low as 1.150 but it is much lower than 1.290V. Thanks for you input guys. Let me know your thoughts of these volts and temps. Thanks :)
 
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4Ryan6

4Ryan6

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You tried to run lower voltage that's what matters now you know for sure what voltage it will take you are still OK in the load temperature range as I've already told you previously, the most likely reason I can run the lower voltage is the cooling I am running vs the cooling you are running.

I'm running a below ambient cooling solution and you're running an above ambient cooling solution, which means I have lower temperatures to start off with, which does give me an overclock advantage, and I also use fixed voltage not offset as schmuckley has suggested.

At 4.5ghz you now are running less voltage than you were and getting lower stress load temperatures, you're good just enjoy the fruits of your labors. Ryan

 
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aps_88f3

aps_88f3

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Thanks! Can I ask what setup you are running? Cooling ect
 
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aps_88f3

aps_88f3

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Nov 9, 2012
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Woah that's intense. Haha nice man. Quick question not oc related. I want to get another 690. But I am pretty sure my motherboard only supports 1x 3.0 PCIE 16, or 2x 3.0 PCIE 8. So if i was to quad sli, (2x690) they would have to be 3.0 PCIE 8 right? Would this bottle neck their performance?

3770k
ROG Maximus V Formula
16 GB DDR3

I know x79 platform is better suited for this type of set up, but would/could I support it with my current rig? Any thoughts appreciated. Thanks
 
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4Ryan6

4Ryan6

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The main reason I went to the Titan was to get away from having to run SLI and put up with the bugginess that comes with running SLI in some games, to me going quad SLI will just increase those problems.

Have you not noticed some gaming weirdness while playing in SLI with what you already have, I know it happens in Crysis3.

I did not realize the amount of problems occurring running SLI until I went to a single GPU capable of running high settings all by itself and the problems simply disappeared.

Some games can run in SLI problem free, but it seems the games I most want to play are problematic.

I know that does not answer your question but if I was preparing to spend the money for another 690, I'd sell the one I had and snag a Titan, then there would be zero SLI problems.

Not to mention some games won't even play in SLI, you wouldn't think that would be the case today, but it is.

My 2 cents on that one.

 
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aps_88f3

aps_88f3

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Ah okay, well I haven't experienced any problems thus far, however I do know a lot of people have problems with SLI. I also understand the titan is a better card, however my reasoning for another 690 was they are going 2nd hand for around $650 &700 AUD. I bought mine brand new, and wanted to sell it to upgrade to a titan but couldn't justify selling it for less than what a 780 is going for new. So I thought why don't I buy another 690. For games its fine as is now, but when I run Heaven 4.0 and a few other software my frame rates really take a toll at 4000k resolution. I would prefer a titan as well but, having said that, if I sold my 690 for $700 AUD I would need another $6-700 to buy the titan. Or I could keep my card and get another one for $6-700. Again, I agree that the titan is a better card but considering a single Gtx 690 is a little more powerful than a titan, wouldn't be better to have 2 690 rather than one titan for the same price? Just sharing thoughts
 
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4Ryan6

4Ryan6

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I'm not trying to get you to buy a Titan, and if you have experienced no problems gaming in SLI with what you have, remember running benchmarks like Heaven is just for bragging rights, it does not apply to playing your favorite games of which you already have an excellent solution.

Why not just wait for now until either AMD or Nvidia releases new graphic territory, because there's really no games presently available you cannot rule over with your 690 right now.

I went to the Titan from 2 580GTX running in SLI, and the 2 580GTX overclocked as far as I could push them could not outperform a Titan at stock clocks, so there was more reason to go for the Titan than just getting away from SLI.

The 690 is still a killer card so whatever you decide to do, I wish you the best!

 
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aps_88f3

aps_88f3

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Nov 9, 2012
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Okay you been very helpful, thanks a lot!! All the best
 
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