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Those of you with OcUK OEM 2700K Official OC Results thread!!

kitch9 said:
There is none, 75c should be more than safe for silicon.

Voltage is a big transistor killer, simple as that.
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well intel told bulldog147 that the safety lmits are 1.35v and under 70c so i guess 65c~

bulldog147 said:
Intel had told me the safer cpu chip for i5 2500K, i7 2600K and i7 2700K are no more than 1.35v! (they mean any degrading cpu) and below 70C in temperature with air cooling.
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tbh what does it matter if it with air cooling or water cooling, if they saying keep it below 70C surely that still the same for water cooling
 
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Using some common sense helps - 1.4v on a 32nm process? - Not wise for 24/7 useage tbh, its defo going to degrade the cpu at some point. It's why i've backed off to 4.8 @ 1.35v for longterm 24/7 useage.
 
zoomee said:
Using some common sense helps - 1.4v on a 32nm process? - Not wise for 24/7 useage tbh, its defo going to degrade the cpu at some point. It's why i've backed off to 4.8 @ 1.35v for longterm 24/7 useage.
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Sensible I reckon, and in any case the extra 200Mghz is not going to make a huge difference except for benching, rather than everyday use.Think compromise is sensible.

Mark
 
I think most people are finding they clock 1-200MHz higher or require slightly less voltage to get stable. If you want to push the overclock as far as you can then I'd say they're worth it but if you're more interested in a conservative stable OC then it doesn't really make a difference.
 
Surveyor said:
You tell me mate, you're the one with the chip.

How much extra voltage would you need for a 200Mghz boost and how much extra heat would it generate?
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They scale well up till 4.6Ghz. After that it seems one needs 0.7v for each 200mhz increment. 4.8 is sustainable temperature wise for long periods of use, but 5Ghz either requires extreme cooling or compromise on stability.
 
zoomee said:
They scale well up till 4.6Ghz. After that it seems one needs 0.7v for each 200mhz increment. 4.8 is sustainable temperature wise for long periods of use, but 5Ghz either requires extreme cooling or compromise on stability.
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Thanks for the serious answer to my not very serious question.

Going back to my post which started this chain I was referring to the fact that tipes said 200Mghz, i.e 200 million GHz.

Anyway, I assume you mean 0.07V for each 200Mhz increment.
 
Surveyor said:
Thanks for the serious answer to my not very serious question.

Going back to my post which started this chain I was referring to the fact that tipes said 200Mghz, i.e 200 million GHz.

Anyway, I assume you mean 0.07V for each 200Mhz increment.
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Sorry a typo on my behalf, I obviously meant 200Mhz,but I still stand by the rest of my comment as has been expanded upon by others. The way I see it is anything over and above 4600 takes a fair bit more volts, and consequently produces a lot more heat for what I would consider a disproportionate increase in performance - unless you are going for benchies etc. Hope this clarifies my point.

Mark
 
gareth170 said:
well intel told bulldog147 that the safety lmits are 1.35v and under 70c so i guess 65c~



tbh what does it matter if it with air cooling or water cooling, if they saying keep it below 70C surely that still the same for water cooling
Click to expand...

Are you talking core temp or CPU temp?

If cpu temp I would agree with you, but T Junction max is 98c on these chips so core temps should be fine for 75c.
 
kitch9 said:
Are you talking core temp or CPU temp?

If cpu temp I would agree with you, but T Junction max is 98c on these chips so core temps should be fine for 75c.
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i guess intel told him core temp ..

CPU temp is just temp from the socket.

75c would be fine for stock, but i guess when oc'ing it need to be ran below 70c so it doesn't degrade it at a higher voltage..
 
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ok not sure what is going on but just recieved my 2700k and am having issues overclocking it?

i had a 2600k @5GHz 1.44v and after reading all that was being said about the 2700k i thought i would give it a go!

ok using similar setting as my 2600k i set about trying for 5GHz

multi = 50
blk = 100.1
pll = enabled
intel speed step = enabled
turbo boost power limit = manual
short = 230
long = 190
core current limit = 200
vcore offset = +0.040 (1.40v)
llc = lvl 2
ram = 1.5v (9-10-9-27 1866MHz)
all other voltages = auto

c states = enabled

this will not boot in as it did on my 2600k!

it needs offset of +0.070 to boot in at all? if i switch of the c states i can boot in at +0.040! am i missing some thing? i am currently using

multi = 48
blk = 100.1
pll = enabled
intel speed step = enabled
turbo boost power limit = manual
short = 230
long = 190
core current limit = 200
vcore offset = +0.010 (1.37v)
llc = lvl 2
ram = 1.5v (9-10-9-27 1866MHz)
all other voltages = auto

c states = enabled

for 4.8GHz!
 
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