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i5-3570k OC 3.9-5.0 Results Charted

Poll Results: Silicone Lottery...Did I....

 
  • 75% (6)
    Win
  • 0% (0)
    Lose
  • 25% (2)
    Draw
8 Total Votes  
post #1 of 24
Thread Starter 
Completely rebuilding this post to include only the important information. Look for updates until I have a stable 24/7 overclock. Second set of Results include DMM board readouts.

Full stability run 4.5Ghz


Things I have learned so far
1. Prime testing should be done with torture test-FFT's
2. Twenty minutes of prime testing doesn't count as stable.
3. The ASRock Z77 ext4, should not be overclocked without a DMM on hand.
4. Line Level Calibration will throw your VCore in both more than reported by software.
5. Overclocking is fun and cheaper than my gun collection. The wife approves.


SPEC:
ASRock Z77ext4
i5-3570k
Zalman 92mm heatsink with provided TIM (set to scale with temps)
1 case fan at rear (wired to a toggle)
KingWin 600 semi modular PSU
Sapphire HD6670 w/no fan
2x4G Corsair Vengeance @1600
Drives a 80" wall projection1680x1050 resolution @60hz Warning: Spoiler! (Click to show)


First set of 20 min runs P95 primenet test. Warning: Spoiler! (Click to show)

Second set of 20 min runs P95 small FFT's, including DMM results.
DMM results are taken roughly 15 minutes into each run, during the 8k test.
Base offset and idle VCore are redundant for charting, the values are +.005 and .848 respectively.
Digital version coming soon. Warning: Spoiler! (Click to show)

Where I tested: Warning: Spoiler! (Click to show)

What I tested with: Warning: Spoiler! (Click to show)

Edited by inedenimadam - 3/13/13 at 12:03pm
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post #2 of 24
Thanks for sharing your results. One problem is that your motherboard unfortunately adds more voltage than you set so this won't really be helpful to anyone unless they also have an Asrock board.

Please update the thread when you decide on a clock, it would be interesting to see how much more voltage it requires to go from a 20 minute prime95 pass to a full pass of all the tests.
post #3 of 24
Wait that is on a Zalman air cooler O.O?
post #4 of 24
Quote:
Originally Posted by Derp View Post

Thanks for sharing your results. One problem is that your motherboard unfortunately adds more voltage than you set so this won't really be helpful to anyone unless they also have an Asrock board.

Please update the thread when you decide on a clock, it would be interesting to see how much more voltage it requires to go from a 20 minute prime95 pass to a full pass of all the tests.

yea unless this is the best chip in the world a lot of those results are a full .1v off to be expected. Not to mention the quality of the mobo and asrock's voltage calculation likely puts the real voltage a good .5-.1v higher than what is read. I don't think it's necessary to be so accurate that you need a DMM for any vcore reading but asrock boards, especially the extreme4, is a bit ridiculous. Just use a dmm to justify you are within .05v at least.
Quote:
Wait that is on a Zalman air cooler O.O?

he isnt pushing high vcores, or vcores that are realistic for any of the overclocks to be anywhere near stable, so his temps seem right. Hitting over 95*C on just 1.38v shows how low performance the cooler is, that's probably the temp he got in 15 minutes of blend, which is a good 10-20*C lower than what you'll see in small fft so it sounds right.
Edited by Belial - 3/9/13 at 10:17pm
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post #5 of 24
Thread Starter 
Quote:
Originally Posted by Derp View Post

Thanks for sharing your results. One problem is that your motherboard unfortunately adds more voltage than you set so this won't really be helpful to anyone unless they also have an Asrock board.

Please update the thread when you decide on a clock, it would be interesting to see how much more voltage it requires to go from a 20 minute prime95 pass to a full pass of all the tests.

How much voltage are we talking when you say my board adds more voltage? I unfortunately don't have access to a voltmeter.

I will be doing some 24 hour runs during the middle of the week hopefully, and I will definitely update the thread at that point. I cant do it on the weekends when my wife and kids take over the system to watch movies and play games.
Quote:
Originally Posted by absoluteloki89 View Post

Wait that is on a Zalman air cooler O.O?

cute little $20 microcenter special.
Edited by inedenimadam - 3/9/13 at 10:22pm
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post #6 of 24
Quote:
Originally Posted by inedenimadam View Post

How much voltage are we talking when you say my board adds more voltage? I unfortunately don't have access to a voltmeter.

I will be doing some 24 hour runs during the middle of the week hopefully, and I will definitely update the thread at that point. I cant do it on the weekends when my wife and kids take over the system to watch movies and play games.

This is from Sin's amazing review: http://www.overclock.net/t/1333812/asrock-z77-extreme4-z77-extreme6-review

post #7 of 24
http://www.overclock.net/t/1360404/asrock-z77-extreme-4-vcore-reading/0_100
http://www.xtremesystems.org/forums/showthread.php?284124-ASRock-Z77-Extreme4-amp-Z77-Extreme6-Review
http://www.youtube.com/watch?v=oB0dm2-nfpc

About .08v off.

My UD5H voltage reading in software and with a DMM is generally off by about .012v.

Digital multimeter is really cheap, just test where the legs come out from the mosfets (or chokes is it? i mean it's not hard to figure out and nothing bad happens if you hook up the wrong points).
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Bitfenix Recon Fan Controller Moded 
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Intel X25-M 80GB SSD NH-D14 SE2011 Noctua 120/140/140 Fans 3 x Yate Loon Mediums (Petras) 2 x NZXT Havik 140mm Fans 
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post #8 of 24
Two votes for win, i dont think so. With asrock voltage it's probably about average, maybe a touch better
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post #9 of 24
From what Stiege was saying, the higher the vcore you go the more the board is off. Like if you were putting 1.45 in the bios it would actually be around 1.52 or so. This is the thread where he is talking about it at. He said he thought he was running 1.5 in the bios and the meter was saying it was actually 1.61.

http://www.overclock.net/t/1360404/asrock-z77-extreme-4-vcore-reading
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post #10 of 24
Quote:
Originally Posted by Belial View Post

he isnt pushing high vcores, or vcores that are realistic for any of the overclocks to be anywhere near stable, so his temps seem right. Hitting over 95*C on just 1.38v shows how low performance the cooler is, that's probably the temp he got in 15 minutes of blend, which is a good 10-20*C lower than what you'll see in small fft so it sounds right.

Exactly I would be afraid of running such a little air cooler on such high clocks.
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