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Broadwell-E thread - Page 324

post #3231 of 7480
Thanks! So if I understood correctly - 10 cores, 20 threads = 30 lines and ~1092.26MB per instance, correct?
post #3232 of 7480
Quote:
Originally Posted by Martin778 View Post

Thanks! So if I understood correctly - 10 cores, 20 threads = 30 lines and ~1092.26MB per instance, correct?

20 lines
leave 2-5GB of ram for the OS.
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post #3233 of 7480
So... regarding cache and voltage on a 6800k.

Not planning on going higher than 1.280v.

Enough usually for 3.8ghz or is 3.8ghz not easy to obtain? At 1.240 now, 3.6ghz.

Any thoughts?
post #3234 of 7480
Quote:
Originally Posted by nexxusty View Post

So... regarding cache and voltage on a 6800k.

Not planning on going higher than 1.280v.

Enough usually for 3.8ghz or is 3.8ghz not easy to obtain? At 1.240 now, 3.6ghz.

Any thoughts?
Mileage varies, but 3.8 on BWE seems to be at or beyond the knee for a lot of chips. So, if you are putting a hard cap on the voltage you will accept, then don't plan on 3.8, but rather plug in the volts and see what it will do.

My sample of one is a 6950x @4.4 core but 3.8 cache stable requires 1.35... Not gonna do it, wouldn't be prudent. 1.37 is 1.29, so that's where it lives.
post #3235 of 7480
Quote:
Originally Posted by nexxusty View Post

So... regarding cache and voltage on a 6800k.

Not planning on going higher than 1.280v.

Enough usually for 3.8ghz or is 3.8ghz not easy to obtain? At 1.240 now, 3.6ghz.

Any thoughts?

At my current timings, I'm using 1.3v vcache for 3800 in my 6900K which has turned out relatively nice so far.
post #3236 of 7480
I do not remember tongue.gif 1.30, 1.32v for Cache is safe in h24 ?

Thanks
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post #3237 of 7480
IIRC 1.3 is highest recommended, 1.35 is viewed as not so good - I may be mistaken.
post #3238 of 7480
Ok thanks djgar thumb.gif
must 1.30, 1.31v for 3700, I will stay in 3600 I think (especially that the difference is minimal for bandwidth, etc...)
Edited by tistou77 - 9/30/16 at 8:54am
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tistou's config
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post #3239 of 7480
What is the stock turbo behavior of a 6850K/1650v4 supposed to be. With my system I've never seen any clock other than 3.8GHz (under load) with turbo enabled. It doesn't matter whether one core is loaded or all six, it's always 3.8GHz. Multicore enhancement is disabled. peak turbo is supposed to be 4GHz, but I've certainly never seen that. Board is Asus X99-M WS
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post #3240 of 7480
Quote:
Originally Posted by Oubadah View Post

What is the stock turbo behavior of a 6850K/1650v4 supposed to be. With my system I've never seen any clock other than 3.8GHz (under load) with turbo enabled. It doesn't matter whether one core is loaded or all six, it's always 3.8GHz. Multicore enhancement is disabled. peak turbo is supposed to be 4GHz, but I've certainly never seen that. Board is Asus X99-M WS

It's difficult to make windows use only one core. Something you could try, disable all but one core in the bios and see if you still only see a 3.8 turbo. You might need the Intel turbo 3.0 driver installed as well.
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