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Skylake Overclocking Guide [With Statistics] - Page 362

post #3611 of 11368
Quote:
Originally Posted by phoboss View Post

Ok I will try x265 next. right now I'm at 4.5GHz with a 1.344V Vcore which seems to run prime stable with a small FFT (8-16k) (1344k ran for about 45 mins). I'll try to go down 10mV before running it again. Looks like my D14 sadly won't be able to keep the temps low enough for 4.6GHz though.

regarding the VCCIO and SA, I read that it should be around the 1V-1.1V range. Do you know what this is impacted by? Why is mine so "much" higher?
Quote:
Originally Posted by Jpmboy View Post

something is not set correctly if the load vcore is higher than set in bios, unless you are running the highest LLC value (which will increase load vcore). VSA is higher because it is on auto - right? Generally the Auto rules have to cover a spectrum of cpu quality (and versions - like i3, i5 etc) that said, 1.2V is fine, i would not run 1.3V VSA. Depending on the ram frequency, you can try 1.0-1.2V for normal use. For 3466 and 3500 ram freq (from a 3200 4x4GB kit) 1.212V is what my setup needs.
thumb.gif

VCCIO and VSA are for high RAM overclocks and stability on BCLK overclocks. Since your RAM are @ 2666, have you overclocked with BCLK and/or Core Multi?
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post #3612 of 11368
Hey Guys,

Thanks for the answers in regards to higher idle voltages smile.gif I had one more question in regards to cache clock.

Last night I noticed my cache was running at stock 3.9ghz while under load (auto setting in bios), and not at 4.5ghz like I originally thought. I changed it to 4.5ghz but now my system crashes in Prime95 within an hour. I tried upping the vcore from 1.295 in 0.005 steps all the way up to 1.325v but still had the same results.

I then changed the max cache multiplier to 44 (min cache multiplier is still set on auto) and ran Prime95 without errors for 6+ hours at 1.295v vcore.

I know there's not going to be much difference performance wise trying to get the cache to 4.5ghz, but is there anyway I can (just so it's on par with my cpu overclock) or is there nothing I can do and that's the max I'm going to get on the cache?
post #3613 of 11368
@AverdanOriginal if you refer to me, ram is at 3466, not 2666.
Quote:
Originally Posted by jaket1980 View Post

Hey Guys,
Thanks for the answers in regards to higher idle voltages smile.gif I had one more question in regards to cache clock.
Last night I noticed my cache was running at stock 3.9ghz while under load (auto setting in bios), and not at 4.5ghz like I originally thought. I changed it to 4.5ghz but now my system crashes in Prime95 within an hour. I tried upping the vcore from 1.295 in 0.005 steps all the way up to 1.325v but still had the same results.
I then changed the max cache multiplier to 44 (min cache multiplier is still set on auto) and ran Prime95 without errors for 6+ hours at 1.295v vcore.
I know there's not going to be much difference performance wise trying to get the cache to 4.5ghz, but is there anyway I can (just so it's on par with my cpu overclock) or is there nothing I can do and that's the max I'm going to get on the cache?
If the kit can manage the added heat cache OC will generate, you can run quite higher than 1.325V vcore. Try setting min and max cache to the same value until you find the voltage needed, then set min to auto.
Edited by Jpmboy - 11/4/15 at 3:21pm
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post #3614 of 11368
Quote:
Originally Posted by Jpmboy View Post

@AverdanOriginal if you refer to me, ram is at 3466, not 2666.
If the kit can manage the added heat cache OC will generate, you can run quite higher than 1.325V vcore. Try setting min and max cache to the same value until you find the voltage needed, then set min to auto.

Hmmm... So it's just a matter of 'keep going on the vcore'? My temps can probable handle it (I'm hitting max 64c on the cores in Prime95 27.9 at 1.295v) but probably not worth the extra 0.035v (or more) for 100mhz on cache. I might just settle for 44 and call it a day if that's all I can do..

Thanks smile.gif
post #3615 of 11368
Quote:
Originally Posted by jaket1980 View Post

Hmmm... So it's just a matter of 'keep going on the vcore'? My temps can probable handle it (I'm hitting max 64c on the cores in Prime95 27.9 at 1.295v) but probably not worth the extra 0.035v (or more) for 100mhz on cache. I might just settle for 44 and call it a day if that's all I can do..

Thanks smile.gif

IMO- unless you really need p95-like stability (99% of users do not) stick with x264, x265, realbench, a short, high current stressor like IBT, OCCT or even AID64 FPU Julia, Mandel and VP8.. then 5-10 Laps of HCI memtest run per the included instructions. p95 generaly will require a 200MHz lower (at least) OC at any given voltage vs the list I provided. But, if you feel compelled to use it, just recognize what p95 really does. IMO, p95 stability is an academic exercise for a home office/gaming rig.
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post #3616 of 11368
Quote:
Originally Posted by Jpmboy View Post

IMO- unless you really need p95-like stability (99% of users do not) stick with x264, x265, realbench, a short, high current stressor like IBT, OCCT or even AID64 FPU Julia, Mandel and VP8.. then 5-10 Laps of HCI memtest run per the included instructions. p95 generaly will require a 200MHz lower (at least) OC at any given voltage vs the list I provided. But, if you feel compelled to use it, just recognize what p95 really does. IMO, p95 stability is an academic exercise for a home office/gaming rig.

I've always used P95 as my go to stress test after a successful run of IBT (I guess old habits die hard). I'll see what I can get in x264 / 16 thread / normal priority overnight at 45 cache and see if that holds up.

My pc is basically just a gaming rig, so if you believe being stable on x264 is good enough I'll try my hardest to let P95 go lol tongue.gif
post #3617 of 11368
Quote:
Originally Posted by jaket1980 View Post

I've always used P95 as my go to stress test after a successful run of IBT (I guess old habits die hard). I'll see what I can get in x264 / 16 thread / normal priority overnight at 45 cache and see if that holds up.

My pc is basically just a gaming rig, so if you believe being stable on x264 is good enough I'll try my hardest to let P95 go lol tongue.gif

A bit quicker to use the x265 benchmark SteveRo linked to earlier... runs in less than 30min - as you dial the OC up. Then punish the chip as you see fit. thumb.gif

@SteveRo - you'll like this: http://www.overclock.net/t/1568154/asus-north-america-asus-z170-motherboards-q-a-thread/1880_20#post_24571721
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post #3618 of 11368
Quote:
Originally Posted by Jpmboy View Post

A bit quicker to use the x265 benchmark SteveRo linked to earlier... runs in less than 30min - as you dial the OC up. Then punish the chip as you see fit. thumb.gif

@SteveRo - you'll like this: http://www.overclock.net/t/1568154/asus-north-america-asus-z170-motherboards-q-a-thread/1880_20#post_24571721

Ok, I'll give this a try. Cheers biggrin.gif
post #3619 of 11368
Quote:
Originally Posted by Cyro999 View Post

No board should have a 0.13v vdroop and the reported voltage is still not neccesarily accurate, it could be even lower

Just thought I'd post a bit of an update on my situation, and some advice to anyone else trying to overclock these little tiny MSI boards.

After trying a whole bunch of fiddling, I found a beta BIOS posted on the MSI forum, and as a last resort installed it. Worked a treat, and have a stable (short term tested) 41x overclock with just stock adaptive voltages (VID 1.22, actual Vcore 1.16-1.21), and I'm not triggering any of the electrical protection flags I was before. So now I'm going to head upwards from here.

A couple of things I noticed about the problem:
- With current stable release BIOS I was using, the CPU package power seemed to be limited to 55W max (as reported by HWinfo). Every time it got close to that, the protection kicked in and it dropped the core multiplier and voltages. This is despite manually setting the max power in the BIOS to 95W long, and 120W short, Iccmax 100A. With the beta BIOS this appears to be no problem.
- The new BIOS has increased power limits by default, (TDP long 115W, Iccmax 120A)
- Actual core voltage still drops a fair bit under load (seeing a drop from 1.21 to 1.16V under load), but nowhere near as much as before

I've got a suspicion that there is a problem with the current stable BIOS of the MSI z170i's maximum power protection settings, hopefully they get this ironed out soon. Either that or I'm going to fry the CPU with new, higher, default maximums thumb.gif
post #3620 of 11368
Quote:
Originally Posted by Jpmboy View Post

A bit quicker to use the x265 benchmark SteveRo linked to earlier... runs in less than 30min - as you dial the OC up. Then punish the chip as you see fit. thumb.gif

@SteveRo - you'll like this: http://www.overclock.net/t/1568154/asus-north-america-asus-z170-motherboards-q-a-thread/1880_20#post_24571721

wow - 6.2ghz @ 1.94v - ln2 or maybe cascade?
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