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Haswell Overclocking Guide [With Statistics] - Page 1057

post #10561 of 19539
that strees test used to check the OC?

I have wanted to know which is the clock unclore, leave it in x38
Edited by Caos - 3/1/14 at 11:12am
post #10562 of 19539
So what was it? What did you change to make it work? Did you simply lower the uncore from 35 to 33 and than it got stable???
post #10563 of 19539
Quote:
Originally Posted by DiceAir View Post

ok cool so i'm just going to do some testings. What program should i use to stress test my pc? is it ok if I use memtest86+ for memory and aida64 for cpu.? When I run aida64 should i just stress test the cpu or memory as well?

just one more question. how would this cpu be at stock vs my old i5-2500k @ 4.7ghz. seeing as new games will make use of more threads maybe the i7 will help out. So what do you suggest is the way forward? I've just read the fine print and I cant return it cause it's already been used.

I have 2 choices and either one is fine.

1. I work for a family software company and they told me that they will be happy to buy the system for one of the lead developers to develop on. will be in a basic 450w psu with the ram, mobo an cpu not going to stress it to the max all the time.

2. I can use it on stock speeds if i tested it is working fine tomorrow.

BTW what volts average is required for 4.2GHz?

There's a link to a package to use x264 in the guide (OP)

With a 1ghz disadvantage, it wouldn't be much better. Closer clocks, it becomes a lot stronger

A good 450w PSU is more than fine btw

4.2ghz? Uh, not sure. Bit under 1.2v?
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post #10564 of 19539
lilchronic
- 4770k Batch # L310B507 MALAY
- 4.6Ghz 1.4v vid
-uncore 4.4Ghz 1.32v vid
-vccin 2.1v
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post #10565 of 19539
Quote:
Originally Posted by Veilus View Post

Thanks for your help, most appreciated. thumb.gif I had gotten up to 4.0 which was solid and sort of 4.1 but bsod after the first x264 test (trying now and its passed 2/5)
I also had try upping the vcore close to 1.3 when i was testing 4.2 before 4.0 which also resulted in a bsod. Im using 1600mhz ram, so i could lower that and see?

So what was it? What did you change to make it work? Did you simply lower the uncore from 35 to 33 and than it got stable???

Why is there a freakin reply button on all comments when youre only leaving a comment in the thread without quoting? Its driving me insane!
Also dont know how to erase previous comments..
post #10566 of 19539
Quote:
Originally Posted by dotque View Post

Why? its the same chip

Same chip as what?
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post #10567 of 19539
Quote:
Originally Posted by Cyro999 View Post

There's a link to a package to use x264 in the guide (OP)

With a 1ghz disadvantage, it wouldn't be much better. Closer clocks, it becomes a lot stronger

A good 450w PSU is more than fine btw

4.2ghz? Uh, not sure. Bit under 1.2v?

Soz for my stupidity but i just remember I have a tx650w in another machine here that I use for download and i don't even need the 650W psu there just used it cause it's 80+ but now I can exchange it with the 450w. So i think PSU wise i'm sorted. So I will also be using a standard WD caviar lue 1TB for my os as that won't make much difference oh and before i forget I have a spare Thermalrigh silver arrow that i exchanged for my h100i due to compatibility issues and I hope everything will fit. So now I can carefully sit down and investigate while my current gaming system is in working condition. Wish I could still use the thermalrigh silver arrow as that cooler is quieter and runs cooler than my new h100i

Oh and again forgot something. i'm using the integrated gpu as I don't have any graphics cards lying around. Will that effect my performance much or will that make my pc overheat like craazy when overclocking?
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post #10568 of 19539
I'm not really sure, it'll increase heat some but maybe not a big deal for the cores
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post #10569 of 19539
Quote:
Originally Posted by FtW 420 View Post

The haswell even at 4.2 - 4.3Ghz should be equal to or faster than sandy at 4.8Ghz in low thread count apps. 4770k should kill the 2500k in multithread apps.

Actually haswell 4.2GHz is about: 1.5% faster in HyperPI and y-cruncher, 4% faster in cinebench, and 2% slower in wPrime than a 2500k at 4.5GHz. All of this with ~ 25% extra heat.
The only real advantage is x264 encoding where it is about 16% faster.
The downside of that however, is that you need more volts to be stable on latest x264 (2389) than you need to be stable under prime.
Whenever i thought i was stable in prime (small fft’s or 1344/4GB ram), x264 benchmark (v2356) x 10 loops, IBT very high x20 passes.., i would still get BSOD’s from MeGUI encoding (with version 2389 of x264) after 1 or 2 hours runtime.
post #10570 of 19539
Quote:
Actually haswell 4.2GHz is about: 1.5% faster in HyperPI and y-cruncher, 4% faster in cinebench, and 2% slower in wPrime than a 2500k at 4.5GHz. All of this with ~ 25% extra heat.

Source on Haswell consuming 1.25x as much power as sandy bridge @4.2ghz vs 4.5ghz? tongue.gif

Temperature and heat output are two completely different things

2389 sure is tricky. It performs like a charm though, ~21-22fps on bench. My mate with an 8350 @ high oc (forgot if it was 4.8 or 5g's) scored like ~18
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