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i5 3570k 4.5ghz at 1.12v?? - Page 5

post #41 of 85
Quote:
Originally Posted by chronicfx View Post

I made spreadsheet.. Am I supposed to have a news crew behind me when I do this stuff?

Spreadsheet doesn't prove anything, pics does, no need for a crew.

Sin's video made me think about testiing it myself though, f this is true and same withh all asrocks boards then I'm gonna start hating asrock. I will gonna think that they are cheating. This is not a bug or misreport, this is intentional, if true.
post #42 of 85
Quote:
Originally Posted by chronicfx View Post

This is the video that made me want to test it myself.

https://www.youtube.com/watch?v=oB0dm2-nfpc

Could it be that your digital voltmeter is off a little? You need a very accurate and expensive true RMS voltmeter to get accurate readings. Also voltage can vary from any point in a circuit based on length of circuit, connections and circuit devices. Are you certain you are measuring the same voltage spots that are located exactly where the mother board voltage sensor readings are coming from?


1.13v for 4.5GHZ on IB sounds very possible from what I have seen. Very nice for low voltage and definitely Golden for low clock with voltage but it may not scale well at higher speeds. For the low point it is nice.


I have a 3570k and a 3770k that can do 4.5GHZ at slighly higher 1.14, 1.15v settings on my Mpower Z77 mother board.
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B.K.T.
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post #43 of 85
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Edited by ghostrider85 - 1/13/13 at 8:14pm
post #44 of 85
Quote:
Originally Posted by SonDa5 View Post

Could it be that your digital voltmeter is off a little? You need a very accurate and expensive true RMS voltmeter to get accurate readings. Also voltage can vary from any point in a circuit based on length of circuit, connections and circuit devices. Are you certain you are measuring the same voltage spots that are located exactly where the mother board voltage sensor readings are coming from?


1.13v for 4.5GHZ on IB sounds very possible from what I have seen. Very nice for low voltage and definitely Golden for low clock with voltage but it may not scale well at higher speeds. For the low point it is nice.


I have a 3570k and a 3770k that can do 4.5GHZ at slighly higher 1.14, 1.15v settings on my Mpower Z77 mother board.

Everything I have read about them and it's very little says that even the cheap ones are accurate. The better ones can take more voltage such as power mains and stuff. I am a chemist by trade and run mass spectrometry and nuclear magnetic resonance spectroscopy so calibration and proof are instinctively important to me... Yes it was a $20 multimeter from radio shack that I returned the next day. I googled "are cheap multimeters accurate" and several sites said they were just fine. So I am not sure what to believe but my own tests showed a higher vcore by DMM than what is reported by cpu-z exactly as it is on the spreadsheet a few posts back.
post #45 of 85
Here a guy tested 12 sub $20 multimeters for accuracy and all performed within spec.


http://www.robotroom.com/Multimeter-Reviews-5.html
post #46 of 85
Quote:
Originally Posted by chronicfx View Post

Here a guy tested 12 sub $20 multimeters for accuracy and all performed within spec.


http://www.robotroom.com/Multimeter-Reviews-5.html


The best of the group was a Sinometer VA38 which the tester stated costed $168.94.



Also besides the quality of the voltmeter to consider also consider my original posts about the location of the circuit that you measured in comparison to the exact sensor locations which are providing voltage readings to the software.
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post #47 of 85
Overall yeah. But just look at the 1.235v test. They are all within 1% whether they cost $2 or $200. That is our target concern. I followed sin0822 's directions about what pins to test on the board.
post #48 of 85
Quote:
Originally Posted by chronicfx View Post

Overall yeah. But just look at the 1.235v test. They are all within 1% whether they cost $2 or $200. That is our target concern. I followed sin0822 's directions about what pins to test on the board.

Sin0822s advice on pins to get cpu voltage reading sounds like an optional location to measure cpu voltage but it may not be the exact location of the circuit where the voltage sensor reader is located that feeds the software voltage readings.
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post #49 of 85
Thread Starter 
I have a few more questions... I am running the LLC at level 1 right now... should I keep this or change it to a higher level? Also, because I'm using fixed voltage mode, and even though speedstep is enabled, it won't work right? Because speedstep just lowers voltage when you are at idle? If this is true, can I use offset mode and get a stable overclock and be able to have speedstep work? Thanks.
post #50 of 85
Quote:
Originally Posted by 0verclock View Post

I have a few more questions... I am running the LLC at level 1 right now... should I keep this or change it to a higher level? Also, because I'm using fixed voltage mode, and even though speedstep is enabled, it won't work right? Because speedstep just lowers voltage when you are at idle? If this is true, can I use offset mode and get a stable overclock and be able to have speedstep work? Thanks.

if you want to use offset, you need to know your vcore under load,
and your VID, then do the math, vcore-vid=offset smile.gif
if level 1 gives you a bit vdroop, thats what you want if youre gonna use offset,
i prefer offset over fixed, why have it running full vcore all the time, even when theres nothing to do..lol
speedstep enabled, C1 enabled, C3/C6 disabled, works well for me(very stable)

how's prime doing, is it still running with that low vcore?
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