4790k Overclocking voltage/ temperatures!?!

[sterlingr]

Hello all,

I am trying to push my 4790k to its limit with a h110i GTX. Since this is my first time overclocking... I have a noobish question.

What is really going to damage my CPU, the voltage itself, or the heat that extra voltage will produce? The reason I'm asking is because while I want to keep the longevity of my processor, my temps are stellar even at the common 1.300v limit.

For example, running a load test for 5 hours @1.300v never rose the temps above 60c... Does this mean that raising the voltage up to say 1.325 or 1.330 is safe as long as my temps are so low?? Or should I still not go above 1.300v no matter how low my temps are?

Thank you all so much!

[Bit8xPr0]

~rekt~

As long as temperatures are low and your voltage isn't above 1.5v though I wouldn't push past 1.4 so yea 1.325 is safe I think.

[W-L]

-SNIP-

 

As long as your temps are within safe region <85C with a large air cooler or watercooler, pushing to 1.35V will not be an issue. At 1.4V is usually where the line should be drawn since most cooling solutions will not be able to keep up or cool well enough. 

[airdeano]

raising the voltage will increase temperatures, but when you increase the

multiplier it too will increase temperatures. you are looking for temperatures of

85° or less under a 100% load.

for 24/7 voltage on haswell/devils canyon, you'll want to keep it under

1.35-1.375v if temperatures/multiplier allow under 85° loaded temperatures.

better\silicone can allow for 1.4v, but temperatures can get dicey.

[sterlingr]

Could I go over 1.375v if temperatures allow? Or should I stop there no matter what??

[airdeano]

with what multiplier?

[W-L]

 

Could I go over 1.375v if temperatures allow? Or should I stop there no matter what??

 

Try and see what your temp are for 1.375V if it's still below the 85C you shouldn't have a problem with that. Once your start pushing in higher voltages degradation can occur but the difference it makes will be fairly negligible since by then the chip will be obsolete. 

[sterlingr]

In one instance, 48 or 49 All cores, in another 50 or 51 with 2 cores and hypertheading disabled (Weird I know... But there's actually a reason behind that second scenario).

[airdeano]

if you can hold a stable 1.375 and 48/49 all thread tune under 85° at 100% load

then you have a golden chip. removing HT can remove some instability, but

then why use an i7 instead of i5 if removing the HT functioning.

[W-L]

In one instance, 48 or 49 All cores, in another 50 or 51 with 2 cores and hypertheading disabled (Weird I know... But there's actually a reason behind that second scenario).

 

Just wondering why disable the cores for higher clock speed it would be better to keep everything and have it at a slightly lower clock speed.

[App4that]

You're doing something right because mine will hit the 80's in Aida64 with mine at 1.24v and 4.7GHz. What stress test are you using?

[Wingfan]

Ive had mine at 1.45v temps hit 83c.....not for a long time tho. 

So even with the temp at 83c, the 1.45v would be harmful?

Just curious

 

@airdeano

[sterlingr]

Just wondering why disable the cores for higher clock speed it would be better to keep everything and have it at a slightly lower clock speed.

 

It's for a clien who wants to run a program that is only single-threaded and therefore can only take advantage of one core at a time

You're doing something right because mine will hit the 80's in Aida64 with mine at 1.24v and 4.7GHz. What stress test are you using?

 

The Intel extreme tuning stress test.

 

 

Try and see what your temp are for 1.375V if it's still below the 85C you shouldn't have a problem with that. Once your start pushing in higher voltages degradation can occur but the difference it makes will be fairly negligible since by then the chip will be obsolete.

 

So you're saying that (as long as temps permit) I should be fine gong to voltages of around 1.375, but I probably shouldn't go past that and my temps will probably be high anyways by that point?

[W-L]

So you're saying that (as long as temps permit) I should be fine gong to voltages of around 1.375, but I probably shouldn't go past that and my temps will probably be high anyways by that point?

 

As long as temps permit you can try but if this is for mission critical work I would say keeping it stock or keeping it slightly lower isn't a bad idea to ensure stability. Can your chip do the 5 Ghz barrier?

[airdeano]

Ive had mine at 1.45v temps hit 83c.....not for a long time tho. 

So even with the temp at 83c, the 1.45v would be harmful?

Just curious

 

@airdeano

 

mmm, not terrible, but can be flirting' with disaster. i'd back it down to the step

under that multiplier/voltage for 24/7 loaded performance.

[sterlingr]

As long as temps permit you can try but if this is for mission critical work I would say keeping it stock or keeping it slightly lower isn't a bad idea to ensure stability. Can your chip do the 5 Ghz barrier?

Stock voltage????

[Gorazd]

Try this dude, Dial the memory timings and mhz manually dont enable XMP, best thing to try (experienced overclocker here, im a computer engineer working for Gigabyte) put the core voltage to 1.3v and than increase the clock speed slowly (4.2ghz-test, 4.3ghz-test,4.4ghz-test) when you will reach the wall with the clock speed stop there and settle it down (since your goal is to not burn down the CPU Than slowly increase the uncore clock (it can be called cache ratio or just cache) with manual voltage (the voltage of the uncore should not exceed 1.24 1.26 for 4.4-4.6 ghz) Test your system again with AIDA 64 only (never use prime 95 or built in motherboard cpu stress test software) I know this is long and boring but im trying to be helpful dude . The last thing you should consider are the cpu temps, since you have one of the best AIO coolers your temps under load should never exceed 90c on any core (this temps will never been seen during gaming btw maybe if you are rendering you can see higher cpu temps around 80-85c but that all depends). If you need additional help contact me dude. Have fun

[Wingfan]

mmm, not terrible, but can be flirting' with disaster. i'd back it down to the step

under that multiplier/voltage for 24/7 loaded performance.

I only did it to try and get 5GHz. 

Its at 1.13v and 4.5GHz for daily use.