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On ripple, and its effects on overclocking - Page 2

post #11 of 14
Thread Starter 
Quote:
Originally Posted by Vuashke;14977969 
are you able to quantify (approximately) how much of an effect ripple will have on overclocking? between say, a high end psu like the x/ax series and something lower, like the antec hcg series?

Nope.


However, generally speaking if it's within half of spec (so 60mV or less on the +12V rail) you can assume there will be absolutely no affect on overclocking (assuming half-decent motherboard or graphics card VRMs). Going for ripple lower than that is a hedge against capacitor degradation, which causes ripple to increase as the PSU ages (contrary to popular myth, capacitor degradation does NOT cause the PSU's total capacity to decrease, not in less than a decade at least).
post #12 of 14
what about silverstone like this that says 3%
http://www.directcanada.com/products...e%20Technology

I should get 1 for $134 all inc
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i5-2500k @ 4.6 GHz Gigabyte Z68XP-UD4 rev 1.0 sapphire 6950 2GB 4GB 1600 CL6 
Hard DriveMonitorPower
Crucial M4 128GB sata3 24" 1080p XFX 750W XXX 80+silver 
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post #13 of 14
Thread Starter 
Voltage regulation is different from ripple&noise.

And that's not an exceptional price for it.
post #14 of 14
I'm using MSI Command Center for my MSI mother board to measure the 12v, 5v, and 3.3v

This is what im seeing with the software

OC Clock: 3.6GHz => 4.1GHz (x41)

3.3 V : 3.290v - 3.318v = 0.028v

5 V : 4.9980v - doesnt seem to change

12 V : 12.0960v - 11.9980v = 0.098v

I notice the v's are pretty steady until I start gaming or something.

The 12v is dipping 98mv right? That seems on the high end. Do you think I should be worried? Is this software not accurate and I shouldn't rely on it?


This is the PSU I have http://www.jonnyguru.com/modules.php?name=NDReviews&file=print&reid=444

Running behind CyberPower CP1500PFCLCD PFC Sinewave UPS 1500VA 900W PFC Compatible Mini-Tower

Edit: I was trying to figure out how to measure 12v without software. I used a multimeter and connected it to a molex connector. Ran realbench stress test while I was taking the meter readings

Results:

-12V = between -12.20 and -12.21. Mostly stayed at -12.20
+12V = between +12.20 and +12.21. mostly stayed at +12.21

With the multimeter readings, it looks like a 10mv ripple, which is line with johnyguru's fidnings. and within safe range. yay
Edited by colac - 6/26/16 at 2:01am
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