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Haswell Overclocking Guide [With Statistics] - Page 120

post #1191 of 19539
Quote:
Originally Posted by Fletcherea View Post

1st time I've ever had buyers remorse on a pc build sad-smiley-002.gif
The i5 is confusing me, my board is really confusing me (multi locked at 34 unless I disable power saving, or set it "fixed oc mode")
If I could I would return it all and invest in a loop for my Lynnfield, which could carry on into other builds down the road, I would in a heart beat.

I don't usually get whiny like this, guess it's just my 1'st build gone wrong lol biggrin.gif

That's rough man I feel your pain, sold off my sli Titan rig at a slight loss to go gaming on a laptop, hated it and sold the laptop for a big loss. Now I'm back on a desktop with a single780.

Whelp..... I played the lotto again and lost bigger than the first time. My first 4770k will do 4.4 at 1.23V boosting up to 1.25V during prime95. It does 4.5 at 1.29V boosting to 1.3V. Second try chip needs 1.26v for 4.4 but only boosts to 1.266V. The really bad part is that it runs 5-10C hotter on every core with the same voltage as my first one. Re-applied TIM many times. Back on my first chip now. Will just have to live with what I got.
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post #1192 of 19539
Could someone advise what these volts are?

So basically I want to confirm what the OS thinks my System Agent volt is and I can only set it in offset in BIOS?? Secondly, I'd like to confirm that the CPU Input volt is now 1.8v which I can thankfully set manually?

Other than that, core @ 1.25v (x44) and cache @ 1.15v (x42).

edit: after trying my luck, seems VCCSA seems to be System Agent and VCCIN seems to be CPU Input volt.


Edited by error-id10t - 8/26/13 at 5:52pm
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post #1193 of 19539
@Darkwizzie

Thanks for the guide!. I know this takes hard work!

I decided to do something similar for the linus tech tips community! please check it out!

http://linustechtips.com/main/topic/41234-intel-haswell-4670k-4770k-overclocking-guide/

I personally dont advise people to stress test with prime95. since it has not been updated for haswell. it can not stress the avx2 instruction set nor can it cope with "adaptive" voltage.

my best recommendation for stress testing hawsell is the intel extreme tuning utility. it is usually accurate at
monitoring system vitals as well
(temps voltages etc)

http://www.intel.com/content/www/us/en/motherboards/desktop-motherboards/desktop-boards-software-extreme-tuning-utility.html

A summary of my Overclocking journey

Before The Delid






After The Delid


Finally stable at 4.7GHz (had to delid to achieve this on air) stable for 12 hours.






I finally found stability with the cache ratio. I am very Happy with this overclock.

I am stable for 10 hours at 4.7GHz with a 4500MHz ring bus frequency.

1.41V max temp 84c

PIV- 1.9V

CPU cache voltage- 1.3V

I dropped my memory down to 1333 for cpu stability testing. currently working on bringing the memory frequencies back up.






12 hours stable at 4.7GHz with mem chips at 2600MHz (relaxed timings)



Uploaded with ImageShack.us

very close to achieving stabilitity at 4.6GHz with a 4600MHz ring bus 1:1 ratio

ran for 9 hours, then crashed....very very close.



4770k

4.7GHz @ 1.41v

4500MHz ring bus

2400MHz Memory

Stable\Validated overclock




4.8GHz @ 1.48V

4500MHz ring bus

2400MHz Memory

overclock is NOT STABLE Nor is it Validated but good fun none the less! My highest scores yet


Edited by ProKoN - 8/26/13 at 9:30pm
post #1194 of 19539
When I started O/C this confused the hell out of me so for anyone else new to ASUS motherboards and overclocking at the same time... here's a quick conversion chart for terms used in this thread smile.gif

ASUS terms conversion list:

CPU Core Ratio: CPU core frequency multiplier, core
Min / Max CPU Cache Ratio: ring bus frequency multiplier, ring, uncore
CPU Core Voltage: vcore
CPU Cache Voltage: Ring Bus Voltage, Uncore Voltage, vring
CPU System Agent Voltage: VCCSA, SA
CPU Analog I/O Voltage: VCCIOA, IOA
CPU Digital I/O Voltage: VCCIOD, IOD
Eventual CPU Input Voltage: VCCIN, VRIN, Input Voltage
DRAM Voltage: VDIMM
post #1195 of 19539
Quote:
Originally Posted by Anusha View Post

This is driving me insane (and I believe so is others).

I'm trying to get my 4.4GHz "prime95 stable". since it's the LargeFFT (in-place) test that screwed me over and over, that's what I'm using the stress test. I run a modified Large FFT where each test is run for 5 min instead of 15 min. everything else same as LargeFFT (2nd test).

Core multi = 44x, Uncore multi = 35x, VCCIN = AUTO (1.75V set in bios), RAM @ XMP 1600/9/9/9/24/2T/1.5V

Vcore = 1.280
1) Uncore = 1.05V: fails <15min
2) Uncore = 1.1V: fails <15min
3) Uncore = 1.15V: fails <15min
4) Uncore = 1.20V: fails <15min

Vcore = 1.285
1) Uncore = 1.05V: fails <15min
2) Uncore = 1.1V: fails <15min
3) Uncore = 1.15V: fails after 2hrs 30min
4) Uncore = 1.20V: fails <15min
5) Uncore = 1.15V: fails <15min
6) Uncore = 1.14V: fails <15min
7) Uncore = 1.155V: fails <30min

Vcore = 1.285m Un-core = 1.15V, RAM @ 1333: reboot <15min!!! (no BSOD code)

***!

Time to play with VCCIN?
now running Vcore = 1.285m Un-core = 1.15V, RAM @ 1333, VCCIN: 1.76V. Just started and no error yet.

You would imagine that you don't need to play with Un-core voltages at 35x stock. this is too much! frown.gif

Hi Anusha,
I believe my chip is similar to yours looking at your past posts (which helped get mine stable).
What did the trick for me is setting VCCIN at 1.85v
My current setup is 45x - 1.32 core (peaks at 1.344 under stress) / 39x - 1.15 uncore / xmp1866 and all else auto.
It's rock solid. If I touch uncore it fails, if i touch core or drop vcore it fails. VCCSA/IOD/IOA don't make much different at this clock for me. Max temps in prime 80C.
Edited by tomxlr8 - 8/26/13 at 9:35pm
post #1196 of 19539
@Procon, agree about XTU. Did you also bench or just ran stress tests? I found the bench to be more punishing.. and also, from what I read I actually believe it uses Prime95 anyway smile.gif

@Tomxlr8, thanks for the explanation. I see you and others here running 1.3xv and am shaking my head how you guys cool the chip. Take XTU as an example, I tried to pass on 4.5giggles with 1.31v and I hit ~95 degrees on hottest part. That's crazy temps for water which I see you and others are also running (but then you say you only got 80 degrees!).
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post #1197 of 19539
Quote:
Originally Posted by error-id10t View Post

@Procon, agree about XTU. Did you also bench or just ran stress tests? I found the bench to be more punishing.. and also, from what I read I actually believe it uses Prime95 anyway smile.gif

It's more punishing cause it's using prime95, which was mentioned not being quite tuned to handle adaptive voltages yet(if ever?).
Just for a play test went to a nice and safe 3.9 oc, volts sat right around 1.23 and jumped as high as 1.3, then I got terrorfieded and shut the bench off lol.
Edited by Fletcherea - 8/26/13 at 9:50pm
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post #1198 of 19539
Quote:
Originally Posted by error-id10t View Post

@Procon, agree about XTU. Did you also bench or just ran stress tests? I found the bench to be more punishing.. and also, from what I read I actually believe it uses Prime95 anyway smile.gif


hey error

i primarily use cinebench for my own testing.

i have been recently using the passmark cpu benchmark.

ive been fiddling with disabling HT and trying to push for 5.0GHz lol just looking for a good time i guess. just updated bios, trying once again to find some kinda decent OC @ 4.8Gz with a reasonable ring bus stability

XTU uses linpack xeon x64 not p95
post #1199 of 19539
Quote:
Originally Posted by error-id10t View Post

@Procon, agree about XTU. Did you also bench or just ran stress tests? I found the bench to be more punishing.. and also, from what I read I actually believe it uses Prime95 anyway smile.gif

@Tomxlr8, thanks for the explanation. I see you and others here running 1.3xv and am shaking my head how you guys cool the chip. Take XTU as an example, I tried to pass on 4.5giggles with 1.31v and I hit ~95 degrees on hottest part. That's crazy temps for water which I see you and others are also running (but then you say you only got 80 degrees!).

Yes, and I run XTU and all three versions of Prime test and the chip sits solid at 80C with ambient on 22C and water temps reaching 30C. The only thing that takes me past that is Linpack. That thing takes me into the 90s... it is pure evil.
post #1200 of 19539
i find the xtu to be fairly realistic of temps your cpu may hit. very real word in my opinion

small fft's way too artificial for my liking

the only two stress testing programs officially validated for haswell are xtu and aida 64

i love prime and have used it for over 13 years, but i had to set it down for this platform
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