4690K voltage questions?

[Baumy15]

got my 4690K and overclocked it but im wondering whats the max voltage for it is it 1.3V and what voltage do I believe?
hardware monitor says 1.288V cuz says 1.320V my BIOS says 1.312V and XTU says 1.296V how much is actually being put into my chip as I really don't want to kill it or degrade it.

im using a NH-D14 with AS5 overclocked to 4.5Ghz

 

[robax91]

The gains for pushing past 1.25v up to 1.3v aren't worth doing unless you are only doing the OC for one-time benches or just to see how fast it will go. You can probably get 4.4 - 4.6Ghz using anywhere from 1.2 to 1.3v. Getting 4.7+ would require more than 1.3v most likely depending on your silicon lottery luck. I would recommend trying 4.5 at 1.2, if it's not stable either lower to 4.4Ghz or bump the voltage to 1.25. I don't really see a reason to go up to 1.3v. It's just more heat to dissipate and you won't get much performance boost for only a 100mhz boost at that point.

Or you can do what I like to. Clock it to 4.0Ghz and undervolt to as little voltage as possible so that it runs cool all the time.

 

[Baumy15]

The gains for pushing past 1.25v up to 1.3v aren't worth doing unless you are only doing the OC for one-time benches or just to see how fast it will go. You can probably get 4.4 - 4.6Ghz using anywhere from 1.2 to 1.3v. Getting 4.7+ would require more than 1.3v most likely depending on your silicon lottery luck. I would recommend trying 4.5 at 1.2, if it's not stable either lower to 4.4Ghz or bump the voltage to 1.25. I don't really see a reason to go up to 1.3v. It's just more heat to dissipate and you won't get much performance boost for only a 100mhz boost at that point.

Or you can do what I like to. Clock it to 4.0Ghz and undervolt to as little voltage as possible so that it runs cool all the time.

I was able to boot into windows on 1.27V and I would like to have 4.5Ghz or higher I wasn't looking to go any lower I haven't stressed it yet but ill report back when I do.

probably should have said this aswell I have a MSI Z87M gaming motherboard with BIOS V1.3

 

[JackNaylorPE]

I'm running a 4770k and to get 46 multiplier / 46 cache ratio I need 1.3875 volts set in the BIOS. I top out at about 72C at this setting and when AVX instructions are present, I can get near 1.5 volts.. At 46 multiplier / 43 cache I'm down around 1.325 volts setting...which is where I normally run 24/7 ... temps are in high 50s / low 60s under RoG Real Bench and voltage peaks about 1.42 if I recall correctly under AVX. Of course the i7s run hotter than the i5s and the 4690k runs cooler than the 4670k. Because of this, Devils Canyon generally OCs higher.

With the Noctua, I'd limit voltage to 1.25 to 1.275 in the BIOS. As for your variable voltages this is what it is supposed to do assuming that you are overclocking with Adaptive voltage ... when AVX instructions are present for example you voltage will rise by 0.10 to 0.13 volts.

 

[Baumy15]

I'm running a 4770k and to get 46 multiplier / 46 cache ratio I need 1.3875 volts set in the BIOS. I top out at about 72C at this setting and when AVX instructions are present, I can get near 1.5 volts.. At 46 multiplier / 43 cache I'm down around 1.325 volts setting...which is where I normally run 24/7 ... temps are in high 50s / low 60s under RoG Real Bench and voltage peaks about 1.42 if I recall correctly under AVX. Of course the i7s run hotter than the i5s and the 4690k runs cooler than the 4670k. Because of this, Devils Canyon generally OCs higher.

With the Noctua, I'd limit voltage to 1.25 to 1.275 in the BIOS. As for your variable voltages this is what it is supposed to do assuming that you are overclocking with Adaptive voltage ... when AVX instructions are present for example you voltage will rise by 0.10 to 0.13 volts.

I was running 1.296V which kicks my voltage between 1.304V and 1.312V and temps are never over 70° when gaming but in IBT on maximum I get around 85-95° but otherwise any lower than that and I cant play any game or pass 1 IBT stress test but kick it up to 1.3V which is sits around 1.312V and 1.320V and I passed 50 IBT tests which was abit overkill but it was stable.
is 1.320V ok for this chip and will it degrade it at all? and for overclocking I heard override is meant to be ore stable is this true as I have it on adaptive at the moment.

thanks!!

 

[JackNaylorPE]

The synthetic stress test that we used all of our years in overclocking are not really suitable for Haswell. Things like P95 hammer the CPU wiyth a constant barrage of the exact same thing which is a) unrealistic in the sense of heat loading but b) doesn't really test the CPU's ability to handle various tasks in various order at the same time. I find i could pass many synthetic tests like Intel XTU but go down in flames in RoG Real Bench.

 

[Baumy15]

The synthetic stress test that we used all of our years in overclocking are not really suitable for Haswell. Things like P95 hammer the CPU wiyth a constant barrage of the exact same thing which is a) unrealistic in the sense of heat loading but b) doesn't really test the CPU's ability to handle various tasks in various order at the same time. I find i could pass many synthetic tests like Intel XTU but go down in flames in RoG Real Bench.

what about max voltage for this chip. and are my voltages right for the speed I have my chip set at?

 

[Baumy15]

got it to a lower voltage. I had set it so 2 cores @ 4.5Ghz and 2 @ 4.6Ghz now all run at 4.5Ghz and I can make it run at 1.296V

 

[JackNaylorPE]

Is that under fixed or adaptive voltage control ? and if latter, is that base load or under AVX ?

Run RoG Real Bench along with HWiNFO64 to see "everything" related to temps and voltages.