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Skylake Overclocking Guide [With Statistics] - Page 199

post #1981 of 11372
Quote:
Originally Posted by mattebad View Post

So I gave up on the adaptive voltage and just used an offset. For some stupid reason my cpu hits a wall when trying to go past 4.6ghz. I can run 4.6ghz stable at around 1.34v, but for some reason can't get 4.7ghz to be stable, even at 1.44v. And I'm not going any higher than that for 24/7 use. Nothing more frustrating than having a bunch of headroom that you can't use

Something I've noticed with Skylake is that when you get into higher clocks, previously stable RAM becomes unstable, even if such RAM is at stock clocks.

What kind of crashes are you getting? If it's BSOD, then it's most likely your CPU, if it's your computer freezing, that could actually indicate unstable RAM. Perhaps you should up the voltage just a tad on your RAM.
post #1982 of 11372
I'm having the same issue at 4.5 ghz at 1.375v and I bsod with clock watchdog error. At 4.6ghz as soon as I start x264 the computer freezes and bsod instantly. At 1.375 at 1.4v it crashes after like 10 seconds @1.425v it crashes in a min and at 1.44v it crashes in like 10mins..... is there anything that can help with this? Or is 4.5ghz my top. I really don't want to mess with base clock and all power savers are disabled. Temps don't break 68c either
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post #1983 of 11372
Hi Guys I would like to share my oc results on 4,6
in bios the vcore is set to 1,250 for some reason the read in aida64 and cpu-z is 1,296
I would try to go forward with oc 4,7 - 4,8 but i am waiting to get my water cooler I little scare to go that far with my funny air cooler ...biggrin.gif



Edited by thomas27 - 9/22/15 at 1:50am
post #1984 of 11372
@mattebad
Quote:
Originally Posted by incog View Post

Something I've noticed with Skylake is that when you get into higher clocks, previously stable RAM becomes unstable, even if such RAM is at stock clocks.

What kind of crashes are you getting? If it's BSOD, then it's most likely your CPU, if it's your computer freezing, that could actually indicate unstable RAM. Perhaps you should up the voltage just a tad on your RAM.

Quote:
Originally Posted by deathmake317 View Post

I'm having the same issue at 4.5 ghz at 1.375v and I bsod with clock watchdog error. At 4.6ghz as soon as I start x264 the computer freezes and bsod instantly. At 1.375 at 1.4v it crashes after like 10 seconds @1.425v it crashes in a min and at 1.44v it crashes in like 10mins..... is there anything that can help with this? Or is 4.5ghz my top. I really don't want to mess with base clock and all power savers are disabled. Temps don't break 68c either

Have you nudged your VCCIO up a bit?
post #1985 of 11372
@Darkwizzie - I forgot to mention that I replaced the Noctua D14 with an EKWB Supremacy EVO. Was some time ago so I didn't realize that too had changed since. smile.gif
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post #1986 of 11372
Goodmorning guys been playing with the new replacement cpu for a couple of days , it still lidded but running great temps . I was mistaken my crashes for vcore at 47 and kept raising it to i got to 1.45 and decided something wasn't right and started again with just the cpu at 47 and memory at 2133 . . . passed real bench all night at 1.41. Now I have memory 3200mhz and working with my io an sa voltage to my processor imc stables with the memory . . . Tweaking takes patience for sure but lesson is don't confuses unstable memory issue with more vcore on cpu thumb.gif

30 min run realbench cpu 47 vcore 1.42 sa 1.15 io 1.15
post #1987 of 11372
I played with offset last night and was sort of surprised to see I needed a pretty big negative offset voltage...I started out with a small positive offset mmm maybe .01ish and got 1.52vcore running x264. rolleyes.gif
So I kept going negative until I could get close to my current vcore, and had to set LLC to 4. But in the end I abandoned it and restored my Adaptive 4.7 I had saved.

Also played with a lot of funky clock/multiplier combinations to see if I could edge up to 4.8 without a large increase in vcore but no luck. Regardless, this Asus board is very good at setting the RAM for all those funky combos. I just set all the DRAM stuff to Auto and let it reboot to see what DRAM speeds it would show for the normal XMP speeds, then select one and reboot into Windows with no problems. I like it. biggrin.gif

Would like to get out my bench meter and check some points on back of board but I think my Supremecy backplate covers everything? Can't remember but I will have to take off the back of the removable motherboard tray to see. Need to look around and see what people have found for vcore read points on the motherboard.

TL:DR life is good.
post #1988 of 11372
Quote:
Originally Posted by incog View Post

Something I've noticed with Skylake is that when you get into higher clocks, previously stable RAM becomes unstable, even if such RAM is at stock clocks.

What kind of crashes are you getting? If it's BSOD, then it's most likely your CPU, if it's your computer freezing, that could actually indicate unstable RAM. Perhaps you should up the voltage just a tad on your RAM.

I can confirm this, especially when you're overclocking with XMP enabled from the start. That's a baaad idea. It made me think my chip wasn't capable of doing 4.4 on 1.4v meanwhile the RAM was at fault. Upping VCCSA and VCCIO did the trick, I'm now testing that same CPU at 4.5Ghz and 1.32v
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post #1989 of 11372
I'm running 4.7/4.6 with 3200 ram on auto sa and vccio, that's with two sticks though.
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post #1990 of 11372
Thread Starter 

Just overclock in the right order, and have everything stock at the start.

 

 

 

 

 

 

 

brb, facepalming at LLT members yelling about dead Haswell chips from nuking their chips due to user error

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Undelwalt (2017)
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14xEK ACF (Compression Fittings) EK x4 250 (v2) Distilled Water + PT Nuke (Copper Sulphate) 24x140mm Silent Wings 3 
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Windows 10 Pro 64bit Catleap 27 Inch 2560x1440 IPS 60hz Display Coolermaster Storm Trigger (Brown Switches) EVGA P2 1000w 
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