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Ghettochild_2600
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Posts posted by Ghettochild_2600
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8700k Overclocked to 4900MHz @ 1.27v No stability issues while gaming or other benchmark tests, but up to 12k Prime95 stress test had 1 error. Would I be just fine to leave it for everyday tasks and gaming or should I up the voltage a little more? Just realized I think my water/in/out is backwards from the picture as well...
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21185 For single core? I thought that couldn't be right. This is multi-core.
More Voltage or Okay?
in Skylake/Kaby Lake/Coffee Lake (-X) (Z170/Z270/Z370/X299) OC
Posted · Edited by Ghettochild_2600
I'm not trying to go for max overclocks. Already ran this chip up to 5.3GHz. Delidded on a custom dual 560mm loop. 4900MHz to 5GHz is the point where I really have to start bumping up the vcore from 1.27~ range to about 1.33v to be stable (1.32v used to be stable...) and +100MHz performance is negligible and I'd rather trade off for lower vcore and temps. Asus Maximus Hero X WiFi board using LLC 5. I'm unsure if a positive vdroop or negative is better, but I prefer using the LLC that doesn't push the vcore above my desired set voltage.
For that formula then would it be something like 1270mv - (1.05 mOhms * IOUT) = max vcore?
1.275v = 1275mv, LLC5 =1.05 mOhms
IOUT = cpu current draw in amps during max load I take it? So During Prime95 small fft I reached 70c max and 114A (114A*1.275v = 145W~)
I increased to 1.275, reaching 1.28 on full load. So: 1280 - (1.05 mOhms * 114A) = 1280 - 119.7 = 1160.3mv or 1.160v ?
So from the math and what you're saying I shouldn't be going above 1.160v at 4900MHz?
Anyway I bumped iup the vcore .05v and Prime95 is now stable after 35 minutes.