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ROG Crosshair VI overclocking thread - Page 924

post #9231 of 16826
Quote:
Originally Posted by mackanz View Post

Aida 64 stresstest is by far harder on the cpu than Realbench. But Realbench is good to quickly see if there is any instability for me at least since i have no games installed yet.

Not sure if the free version has a stress test though, i may give it a shot if it does.
    
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post #9232 of 16826
I just bought one of these and a R7 1700. Guess I've got some reading to do. rolleyes.gifthumb.gif
post #9233 of 16826
Thread Starter 
Quote:
Originally Posted by Timur Born View Post

Why are both applied at the same time then? T_Offset for the big scaling steps and MI Offset for the small ones?

Did you see my earlier power vs. temperature screenshots concerning "fixed" AMD offsets?

It isn't, T_Offset is never used unless you set it manually.

Yes I saw it, but I'm not sure what you're getting at. Which values are used for calculating this offset you're showing? Tctl vs CPU Socket thermistor? Whatever you're seeing with SenseMI Skew Disabled is AMD default behavior. The only thing we're doing is applying SenseMi Skew = 272 when overclocking if it's left at Auto.

Quote:
Originally Posted by guskline View Post

elmor, again thank you for all of your work AND your willingness to share it on this forum. I got my C6H mb with 902 BIOS native and upped it to 1002 release. I "braved" it and upped it to 081 beta and it has run perfectly. Of course having the Gskill FlareX DDR4-3200 ram (2x8) sure helps. I'm solid at 4Ghz and ram at 3200-14-14-14-34-1T.

Awaiting the new official release of the updated BIOS.smile.gif

Glad your system is working well smile.gif
post #9234 of 16826
Quote:
Originally Posted by Reikoji View Post

You pretty much have one of the good ones if you can 4ghz on auto voltage. thumb.gif

Since ours is pretty much the same (cept i havent bothered with passed 4.2ghz), your 4.15ghz should be stable with 1.5v if you become willing. 2nd option is 1.45v and LLC 3, but use of LLC isn't recomended. Not sure about with IBT tho, I dont use that.

Where does anyone state the use of LLC is not recommended? Without some, you'll never unlock the full potential of the CPU.

My CPU is 100% stable at 3.9ghz with 1.394v (under full load as reported by SVI2); this can not be achieved using 1.45v and LLC auto, level 1, or 2. Because of the substantial vdroop, LLC 3 must to be used with 1.425v to achieve 1.394v as a minimum loaded voltage.

Looking back, I'm wondering if the members who were unable to achieve a stable clock of 3.8 were limited because of your comments regarding the use of LLC. What we as users decide to be acceptable in regard to overshoot and some of the other potential negatives of running higher LLC levels is something we must decide as individuals. While anecdotal at best, I've never had a CPU fail in 20 years and I've thoroughly thrashed on every one of those systems.
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post #9235 of 16826
Quote:
Originally Posted by elmor View Post

It isn't, T_Offset is never used unless you set it manually.

Yes I saw it, but I'm not sure what you're getting at. Which values are used for calculating this offset you're showing? Tctl vs CPU Socket thermistor? Whatever you're seeing with SenseMI Skew Disabled is AMD default behavior. The only thing we're doing is applying SenseMi Skew = 272 when overclocking if it's left at Auto.
Glad your system is working well smile.gif

Also I don't know if you or another have found this out as well, but with 0082 bios I am able to use the 3200mhz ram ratio in bios to get 3200mhz with 4x16gb of ram now, allowing me to drop my Bclk back down to 100. The timings tho i don't think i'll be getting to what they are rated at either way.
Edited by Reikoji - 4/14/17 at 5:04am
post #9236 of 16826
Quote:
Originally Posted by madweazl View Post

Where does anyone state the use of LLC is not recommended? Without some, you'll never unlock the full potential of the CPU.

My CPU is 100% stable at 3.9ghz with 1.394v (under full load as reported by SVI2); this can not be achieved using 1.45v and LLC auto, level 1, or 2. Because of the substantial vdroop, LLC 3 must to be used with 1.425v to achieve 1.394v as a minimum loaded voltage.

Looking back, I'm wondering if the members who were unable to achieve a stable clock of 3.8 were limited because of your comments regarding the use of LLC. What we as users decide to be acceptable in regard to overshoot and some of the other potential negatives of running higher LLC levels is something we must decide as individuals. While anecdotal at best, I've never had a CPU fail in 20 years and I've thoroughly thrashed on every one of those systems.

It was only like... yesterday where Raja showed us the oscilloscope graph and all that jazz redface.gif
post #9237 of 16826
Quote:
Originally Posted by bluej511 View Post

Not sure if the free version has a stress test though, i may give it a shot if it does.

Running a pair of simultaneous Handbrake encodes at a 1080 preset will get you to a 95% solution in about 12 minutes. It is the quickest way I've found to gauge stability.
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post #9238 of 16826
Quote:
Originally Posted by madweazl View Post

Running a pair of simultaneous Handbrake encodes at a 1080 preset will get you to a 95% solution in about 12 minutes. It is the quickest way I've found to gauge stability.

Won't be enough for the purists on here haha. Its 365 days straight of ibt or aida64 or folding or bust.

There will always be someone asking for more more and more. My method has worked for the past 15years with no issues, its been stable and then some. No WHEA errors, no BSOD related stability issues, ill stick with it. If it works why fix it?
    
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post #9239 of 16826
Quote:
Originally Posted by gupsterg View Post

@badhairguy

Noted you have CPU as rig image in sig, do you have IHS stamp info? would like to add your OC data to DB, cheers smile.gif .

Unfortunately I found this picture on the internet and set it as my wallpaper and my sig picture on here. I do not have the info off my chip as I didn't take a pic before I installed it. sorry.
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post #9240 of 16826


posted with 100bclk, 3200 ram divider, slightly upped to 100.4 in ai suite 3 for a bit of OC passed limits.
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