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post #11 of 16
Quote:
Originally Posted by Buris View Post

My old Q9400 was able to be undervolted while simultaneously being overclocked and still remained stable.

Essentially went to 2.66Ghz to 3.2Ghz, improving performance by about 20%, while making it cooler, and yet last longer. Technology is great like that.

If you go into your computers BIOS menu, and bring up the multiplier a bit, nothing bad will come of it. Only faster.... And you ARE on OCN.. The pursuit of performance, we can help you. you should be able to go to 4.2-4.5Ghz without raising voltages depending on how lucky you are. Remember to make that your stock and to turn off turbo! thumb.gif

It's super easy and fun.

I am shamefully aware that I am on OCN and still running at stock frown.gif

I bought my first SSD yesterday (Plextor M5 Pro Xtreme 256GB), so the plan is to re-install Windows on that, then push the multiplier up to 40x then run Intel Burn Test, and again at 42x before doing a longer Prime/OCCT test.

But shouldn't I be leaving Turbo on for an OC?
    
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post #12 of 16
Quote:
Originally Posted by JWak-1 View Post

I am shamefully aware that I am on OCN and still running at stock frown.gif

I bought my first SSD yesterday (Plextor M5 Pro Xtreme 256GB), so the plan is to re-install Windows on that, then push the multiplier up to 40x then run Intel Burn Test, and again at 42x before doing a longer Prime/OCCT test.

But shouldn't I be leaving Turbo on for an OC?

My experiences have led me to believe turbo to be a buzzword. Turbo is basically intel speedstep, so it keeps your clocks low until you need to use them and then brings them up, for people who render video for hours on end, it's redundant.

I keep my 8320 @ just over stock 8350 levels, 4.221GHz keep the coolnquiet and some other jazz off as well, unless your worried about that extra 10 cents on your power bill
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post #13 of 16
I'll give both a try, can't hurt, and at 4.2 I'm not exactly pushing the limits. I can OC using Asrock's software within windows, so I can just push the multi that way.
    
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post #14 of 16
Quote:
Originally Posted by JWak-1 View Post

I've often wanted to know about this. I use my PC for work as an animator/illustrator and sometimes I render animations for long periods of time (anywhere upto 48hrs at a time, but mostly 6-12hrs). If I was to OC my CPU I could decrease that time, but I've often wondered if it is worth it when lifespan and degradation are concerned, as this PC has to last me 3yrs minimum (1yr old atm).

Maybe overclocking without increasing the voltage and seeing how much I can get without changing it would be a good idea? Might be a good idea for the OP if anybody else can back up my theory?

AFAIK, it's the increased voltage that primarily reduces CPU life though temps count as well. In that regard, with your 3770K, make sure you have a good if not very good heatsink as Ivy Bridge (and Haswell) run hot. As for the overclocking strictly by multiplier (no voltage bump), as long as temps are OK, I would think there would be relatively little reduction in life span. Did that w/ one of my early OC'D CPUs and it lasted 3+ years. Even if you do increase voltage, as long as you keep it to small amount (ex. 1.20v stock -> 1.25v or so bump), I would think the effects from that small of an increase would be fairly minimal as well. IMO there's definitely a point of diminish returns, where that last extra 100MHz, 200MHz, etc. require a lot more voltage. For me isn't worth it.

My understanding is that it's better to leave "turbo" off when manually overclocking. That's what I did. As Buris says, "turbo"/Intel speed steep is just an "built-in" type of overclocking of sorts and you're doing that anyway.
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post #15 of 16
Quote:
Originally Posted by goesto11 View Post

AFAIK, it's the increased voltage that primarily reduces CPU life though temps count as well. In that regard, with your 3770K, make sure you have a good if not very good heatsink as Ivy Bridge (and Haswell) run hot. As for the overclocking strictly by multiplier (no voltage bump), as long as temps are OK, I would think there would be relatively little reduction in life span. Did that w/ one of my early OC'D CPUs and it lasted 3+ years. Even if you do increase voltage, as long as you keep it to small amount (ex. 1.20v stock -> 1.25v or so bump), I would think the effects from that small of an increase would be fairly minimal as well. IMO there's definitely a point of diminish returns, where that last extra 100MHz, 200MHz, etc. require a lot more voltage. For me isn't worth it.

My understanding is that it's better to leave "turbo" off when manually overclocking. That's what I did. As Buris says, "turbo"/Intel speed steep is just an "built-in" type of overclocking of sorts and you're doing that anyway.
Maybe I am doing it wrong, but my board doesn't let me raise the non-turbo multiplier past 35, which is the default setting of 3.5 ghz. So, disabling turbo and using that would get me nothing but a big decrease in performance.

IB really only runs hot when you have a poorly seated/not soldered IHS, and when you just run the voltage at "auto" and the thing ramps it up way too high.
I found I had to decrease the default voltage to get the thing stable. With it set to auto, at stock it was running over 1.3v, at 4.2ghz it would push 1.4... at 4.5 the thing would flat out not boot. Now I run 4.5 with 1.28v or something like that (I'm at work, cant check).

I run around 65-70C at 4.5 ghz on air alone, at 100%. I don't consider that to be all that terribly hot, since almost never is the chip loaded to 100% anyways. I normally sit around 55-60C while doing anything with a load on the cpu, and 20c on core 1, with 30c on cores 0,2, and 3. That one core... man, I swear... But at load it all evens out, so I guess its not that weird.
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post #16 of 16
Quote:
Originally Posted by Shiftstealth View Post

The only issues are if you go above the recommended voltage the CPU will degrated. IE it will require more volts to hit that frequency. Running under the limits you will be fine. You'd need to do 1.6-1.7 to start to even consider damaging the cpu.

1.6-1.7v is DEFINITELY into the damaging zone for any modern processor. Even the older 90nm processors was never recommended to push 1.7v except in extreme benchmark runs. It really depends on which process node and which architecture you are talking about. The Thuban cores on 45nm node can easily take 1.55v no problem. No one knows yet how much we can get away with on Zambezi and Vishera, but the math says we should not go above 1.45v (or was it 1.5?) and no LLC for 24/7 usage
Edited by EniGma1987 - 7/2/13 at 1:34pm
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