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Skylake Overclocking Guide [With Statistics] - Page 557

post #5561 of 11288
Quote:
Originally Posted by Dreaden View Post

On that note, does OCing the Cache and the Ram have any impact on how high you can get the core clock? As in the order in which the OC all the parts makes no difference?

It depends on the strength of the components of the chip..
Each is generally (but not always) weaker/stronger than another.
The K chips allow different speeds for the core vs the uncore (cache and imc).
When overclocking non-k chips the core and uncore are (so far) locked 1 to 1.
You can slow down the imc by running memory below 2133 but that is certainly an undesired end result/workaround. rolleyes.gif

edit - usually the importance to performance from high to low - core, then cache then imc/memory but it depends on the load - if a lot of disk access is required - even your HDD (hopefully SSD) can be the bottleneck.
Edited by SteveRo - 2/5/16 at 4:52am
post #5562 of 11288
Thread Starter 

Usually overclocked cache doesn't significantly and negatively impact core clock, but it's still good practice to do core, then cache. That is my observation with Skylake.

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post #5563 of 11288
Quote:
Originally Posted by Darkwizzie View Post

Usually overclocked cache doesn't significantly and negatively impact core clock, but it's still good practice to do core, then cache. That is my observation with Skylake.

You mean lower (slower) cache speed does not significantly affect core cpu performance - correct?

A weak uncore can hold back overclocking of a strong core when ocing non-k chips because core/cache/imc are all (currently) locked 1 to 1 when non-k ocing. This is one of the disadvantages to non-k oc.

The other more important disadvantage is all power savings features are turned off. There is no way to allow the chip to idle down to lower voltage. So (again for non-k oc) if you find you have a great overclock at say 4.9ghz and 1.48v - you will always pump 1.48v through the chip - 24/7 - no "lower voltage " for when the chip idles down - you are always at 1.48v mad.gifmad.gif
post #5564 of 11288
Quote:
Originally Posted by llantant View Post

No real way to test it I don't think. What is said to happen is your overclock will become unstable over time. So if you are stable at 4.8 and 1.4v now in a years time it you may need 1.41v.

I believe it is called Electronic Migration. I remember reading a thread about it some time ago.

That said I ran my Sandybridge with 1.42v cpu and 1.15Vccio @ 4.7 ghz for 5 years with no degradation. Temps always under 70c though.

SB was a tough architecture. My 2700K is still running 4.6 @ 1.328V all day with a crappy arctic air cooler (security cam duty). On water it ran years at 4.8/1,44V. SB is very strong - not sure about Skylake ... yet. Seems to be very robust!
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post #5565 of 11288
i guess i found my limit. i just cant understand why so hot. i am sure my build is great for cpu cooling.
corsair 780t every hole filled with fans intake/out and got thermal take water 3.0 ultimate 3x120 rad..

ss2.jpg
post #5566 of 11288
Quote:
Originally Posted by Aytac View Post

i guess i found my limit. i just cant understand why so hot. i am sure my build is great for cpu cooling.
corsair 780t every hole filled with fans intake/out and got thermal take water 3.0 ultimate 3x120 rad..

Runs P95, wonders why it's hot. tongue.gif
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post #5567 of 11288
Quote:
Originally Posted by Yuhfhrh View Post

Runs P95, wonders why it's hot. tongue.gif

is any way to drop temp? like drop pll voltage or something like that.. which setting need to be play after this point?
post #5568 of 11288
Quote:
Originally Posted by Aytac View Post

is any way to drop temp? like drop pll voltage or something like that.. which setting need to be play after this point?

Grabbing a razor and delidding the thing would be your best option to get temps down.
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post #5569 of 11288
Quote:
Originally Posted by Yuhfhrh View Post

Grabbing a razor and delidding the thing would be your best option to get temps down.

damn i am trying to avoid that, just today learned whats delid ;d

i have thermaltake tg4 paste, is it still worth to try?
post #5570 of 11288
Quote:
Originally Posted by Aytac View Post

damn i am trying to avoid that, just today learned whats delid ;d

i have thermaltake tg4 paste, is it still worth to try?

It wouldn't hurt to try and remount.
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