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Haswell Overclocking Guide [With Statistics] - Page 362

post #3611 of 19652
Thread Starter 

Guide has been updated with Forceman's Pro Tip. :cheers: 

Guide has been updated for the only concrete evidence I have on needing input voltage at higher frequencies.

 

Default setup:

x46/34

1.375v/1.3 & 1.85 VCCIN

1600/stock timings/1.55v

+0.1 SA/DI offsets

LLC 100%

 

Test: x264 benchmark. Timed with a timer.

 

@ Default settings: 

Crashed after...

1:08, 9c

2:04, 101

1:06, 101

 

Average: 86 seconds

 

Default settings with VCCIN @ 1.95v

2:16, 101

7:23, 101

6:00, 101

1:34, 9c

5:20, ?? (My bad)

 

Average: 270 seconds

 

Default settings with VCCIN @ 2.05v

5:53, ?? (No code)

6:55, 9c

15:27, 101

1:09, 9c

2:15, 9c

 

Average: 379 seconds


Edited by Darkwizzie - 10/7/13 at 2:52am
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post #3612 of 19652
Quote:
Originally Posted by Jason7890 View Post

I wonder if we'll ever find the 'holy grail' for Haswell,seems that Haswell almost changes what it requires for stability randomly.Been doing lots of reading on various sites and it seems,even CPU's which have passed a stringent set of stability tests can randomly be unstable all of a sudden.
Thi
Seen that too. Usually on a new day on cold boot i got different stability results, even noticed inconsistency in gflops on a new boot. It might be due to slight changes in power delivery which will cause instability if you are on the edge of your overclock.
Another thing are the temps. I can run linpack at 18C° ambient all day and never break 80C°, but on a warm day when iam in 90's C° i get random crashes. 90C might seem unreal for real world stuff but only after finding stability in that area i was able to get overall stable results.

imaghost03214, you can ask p95 author directly here:
http://www.mersenneforum.org/showthread.php?t=17982&page=31
In fact, his latest haswell integration helped me in fine tuning the OC.
post #3613 of 19652
Quote:
Originally Posted by Darkwizzie View Post

Guide has been updated with Forceman's Pro Tip. cheers.gif  
Guide has been updated for the only concrete evidence I have on needing input voltage at higher frequencies.

Default setup:
x46/34
1.375v/1.3 & 1.85 VCCIN
1600/stock timings/1.55v
+0.1 SA/DI offsets
LLC 100%

Test: x264 benchmark. Timed with a timer.

@ Default settings: 
Crashed after...
1:08, 9c
2:04, 101
1:06, 101

Average: 86 seconds

Default settings with VCCIN @ 1.95v
2:16, 101
7:23, 101
6:00, 101
1:34, 9c
5:20, ?? (My bad)

Average: 270 seconds

Default settings with VCCIN @ 2.05v
5:53, ?? (No code)
6:55, 9c
15:27, 101
1:09, 9c
2:15, 9c

Average: 379 seconds

If you find a way to loop X246 let me know. I'm passing that fine with 1.28 volts and 1.75VRIN at 4.6Ghz, but BSOD on Prime95 27.9 after a few minutes. I don't care to be prime stable as long as it is stable in game and when rendering. I'll be upping the VRIN a bit tomorrow to see if that helps a bit. I don't mind to test with Prime95, but I don't think it is the end all be all. Synthetics are kinda... meh.
post #3614 of 19652
My pc keeps freezing at the windows loading screen on windows 7, where you see the splash screen and loading windows.

Would take 1-3 mins to load into windows.

Unplugged every other component under the sun to try and figure out what was causing this issue.

Plugged in the wifes ssd and the pc would boot flawlessly in under 6 seconds:(frown.giffrown.gif

Whats a good ssd brand as the current one I have is a samsung 830
post #3615 of 19652
Quote:
Originally Posted by t0tum View Post

Thi
Seen that too. Usually on a new day on cold boot i got different stability results, even noticed inconsistency in gflops on a new boot. It might be due to slight changes in power delivery which will cause instability if you are on the edge of your overclock.
Another thing are the temps. I can run linpack at 18C° ambient all day and never break 80C°, but on a warm day when iam in 90's C° i get random crashes. 90C might seem unreal for real world stuff but only after finding stability in that area i was able to get overall stable results.

imaghost03214, you can ask p95 author directly here:
http://www.mersenneforum.org/showthread.php?t=17982&page=31
In fact, his latest haswell integration helped me in fine tuning the OC.

Thats just it,thought i was teetering on the edge with voltages so upped them each in turn by a fair amount and no dice,no stability.Maybe i should try going down with the voltages as i not tried that,that was how i got 4.8,was a by-product of shooting for 5ghz,lol,seem to have more luck starting at the wrong end.When i start with low clocks things never seem to get stable,my mobo likes the presets an is solid,once you dial in manually though it just does'nt play nice,i'm not an expert overclocker by any means,but i have been using reasonable settings that other mobo's seem to have no problems with.
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post #3616 of 19652
Quote:
Originally Posted by darkelixa View Post

My pc keeps freezing at the windows loading screen on windows 7, where you see the splash screen and loading windows.

Would take 1-3 mins to load into windows.

Unplugged every other component under the sun to try and figure out what was causing this issue.

Plugged in the wifes ssd and the pc would boot flawlessly in under 6 seconds:(frown.giffrown.gif

Whats a good ssd brand as the current one I have is a samsung 830

This has been a known issue with some samsung ssd's and the z87 platform.

To resolve the issue for was to do a complete reformat of the samsung ssd as somehow it was retaining a driver or something cuasing it to hang on load and cuasing long boot up times.
After reformating it entirly i soved the issue and 5 second boots. thumb.gif
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post #3617 of 19652
Done a format and a fresh install of windows 7 about 6 times now all with the same results, also when I try to open hwinfo it freezes on intel management device
post #3618 of 19652
Quote:
Originally Posted by Darkwizzie View Post

Guide has been updated with Forceman's Pro Tip. cheers.gif  
Guide has been updated for the only concrete evidence I have on needing input voltage at higher frequencies.

Default setup:
x46/34
1.375v/1.3 & 1.85 VCCIN
1600/stock timings/1.55v
+0.1 SA/DI offsets
LLC 100%

Test: x264 benchmark. Timed with a timer.

@ Default settings: 
Crashed after...
1:08, 9c
2:04, 101
1:06, 101

Average: 86 seconds

Default settings with VCCIN @ 1.95v
2:16, 101
7:23, 101
6:00, 101
1:34, 9c
5:20, ?? (My bad)

Average: 270 seconds

Default settings with VCCIN @ 2.05v
5:53, ?? (No code)
6:55, 9c
15:27, 101
1:09, 9c
2:15, 9c

Average: 379 seconds

Hi,
That's my x264 stable default setup:
x46/x44
1.35v/1.24v & 1.94 VCCIN (in bios)
1.36v/1.26v & 1.95 VCCIN (in HWinfo)
2133/10,11,11,30/1.65v (1866/1.5 default)
+0.2 SA/D I/O offsets
+0.15 A I/O
LLC lev8

I hope, it will help you to get stable OC of your CPU at x46
post #3619 of 19652
Hay,
I got my i5 now @4,6 ghz . in the BIOS i adjust 1.26v but cpu-z shows 1.25 and HW monitor shows a max. Vcore of 1.28 is this normal and if yes are these voltages pretty safe?
post #3620 of 19652
Quote:
Originally Posted by Menphisto View Post

Hay,
I got my i5 now @4,6 ghz . in the BIOS i adjust 1.26v but cpu-z shows 1.25 and HW monitor shows a max. Vcore of 1.28 is this normal and if yes are these voltages pretty safe?

Yes, it's normal for the software voltage to be a little off from what you set in the BIOS, and it is also normal for the voltage to go up about 0.02V under full load. Those are pretty good volts for 4.6 also.
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