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> Skylake/Kaby Lake/Coffee Lake OverClocking V1, Show off your OC here

cstkl1
post Dec 15 2018, 10:06 PM

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QUOTE(king99 @ Dec 14 2018, 09:15 PM)
Hi, if I pass small FFT 24 hours in Prime v29 but fail blend within 30 minutes @ 2.7 Ghz, that leads to an unstable memory ? 8600K + Gaming 7.

It is stable with XMP 3000MHZ @ 2.6 Ghz but not at 2.7GHZ

I guess I need to increase VCCIO and System Agent Voltage ? Wondering what is the safe voltages for it..
*
wrong test for memory.
owikh84
post Dec 22 2018, 09:05 AM

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ROG Maximus XI now offered at below MSRP... biggrin.gif
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https://shopee.com.my/search?keyword=maximu...xi&shop=5529122

======

Meanwhile, MSI Z390i GAMING Edge AC is now available in Malaysian market @ RM790:
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This post has been edited by owikh84: Dec 22 2018, 11:03 PM
owikh84
post Dec 29 2018, 10:17 AM

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Should I? biggrin.gif
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Initial testing with Realbench v2.56 (with AVX)...
9900K @ 5.0GHz core 4.5GHz cache @ 1.230v.
Stressed for 1 hour, core temps 77-85C under custom WC powered by 2x 360mm rads.
Chip is quite toasty even only 1.230v was given, same goes to VRM that's registering at 83C max. (Ambient 31C)

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This post has been edited by owikh84: Dec 30 2018, 01:18 PM
owikh84
post Dec 31 2018, 07:09 AM

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Some benchmark results with 9900K @ 5GHz. More to come...

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tanghm
post Dec 31 2018, 02:26 PM

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QUOTE(luqmanz @ Dec 4 2018, 05:12 PM)
whos still running 6600k at 4.5 Ghz today ?  High five me
*
You should high five me instead, I still running 2700K @ 4.7GHz
cstkl1
post Jan 2 2019, 04:50 PM

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QUOTE(owikh84 @ Dec 31 2018, 07:09 AM)
Some benchmark results with 9900K @ 5GHz. More to come...

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*
again whats with da low cpu score...
hmm should be 12.4-12.7k
owikh84
post Jan 2 2019, 09:27 PM

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QUOTE(cstkl1 @ Jan 2 2019, 04:50 PM)
again whats with da low cpu score...
hmm should be 12.4-12.7k
*
Gotta do with RAM speed + latency, my result was based on 3200 CL16-18-18.
Now increased to 12.3k with 3600 CL16-18-18.
Of course could do higher with further optimization etc.

This post has been edited by owikh84: Jan 2 2019, 10:08 PM
cstkl1
post Jan 2 2019, 10:14 PM

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QUOTE(owikh84 @ Jan 2 2019, 09:27 PM)
Gotta do with RAM speed + latency, my result was based on 3200 CL16-18-18.
Now increased to 12.3k with 3600 CL16-18-18.
Of course could do higher with further optimization etc.
*
ic ic...
i actually got 12.6k at 4.9ghz.. 5ghz is unstable hence da result always varies

owikh84
post Jan 2 2019, 11:33 PM

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QUOTE(cstkl1 @ Jan 2 2019, 10:14 PM)
ic ic...
i actually got 12.6k at 4.9ghz.. 5ghz is unstable hence da result always varies
*
ow.... mine always consistent at 5GHz, giving 11.5k with DDR4-3200 and 12.3k with DDR4-3600.
Had problem hitting 2200cb in Cinebench R15 earlier, sometimes 2090-2150cb.
Managed to get it back up after a fresh install of Windows 10. rclxm9.gif

Regarding stability...
Although RB v2.56 is stable @ 1.23v for 1 hours, Prime95 v29.5 with AVX custom blend 1344K/1344K will not stable at this vCore (almost instant freeze).
I tried putting 1.275v but doesn't seem to make it stable (core temps still below 100C mark).
Will try 1.285-1.3v later if my cooling (aging Supreme HF) is still able to handle the heat.
Small FFT as expected, shot up to 100C as soon as I started stressing the chip. sad.gif

Not a golden chip it seems. TBH I'm jealous seeing others getting 5GHz easily under 1.3v.
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cstkl1
post Jan 2 2019, 11:49 PM

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QUOTE(owikh84 @ Jan 2 2019, 11:33 PM)
ow.... mine always consistent at 5GHz, giving 11.5k with DDR4-3200 and 12.3k with DDR4-3600.
Had problem hitting 2200cb in Cinebench R15 earlier, sometimes 2090-2150cb.
Managed to get it back up after a fresh install of Windows 10.  rclxm9.gif

Regarding stability...
Although RB v2.56 is stable @ 1.23v for 1 hours, Prime95 v29.5 with AVX custom blend 1344K/1344K will not stable at this vCore (almost instant freeze).
I tried putting 1.275v but doesn't seem to make it stable (core temps still below 100C mark).
Will try 1.285-1.3v later if my cooling (aging Supreme HF) is still able to handle the heat.
Small FFT as expected, shot up to 100C as soon as I started stressing the chip.  sad.gif

Not a golden chip it seems. TBH I'm jealous seeing others getting 5GHz easily under 1.3v.
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*
wei.. they all lucky.. cause temp etc... high chance u getting getting some power bleed above 80 which affects stability.. seen it even on x299 cpus...
above 80+.. u have issues..

but so far havent seen a proper stable 5ghz 9900k with 4+k ram...
aka rb 2.43 8 hours, 2.56 8 hours, hci memtest 1000%, gsat 2 hours

This post has been edited by cstkl1: Jan 2 2019, 11:50 PM
djandrew
post Jan 3 2019, 10:38 AM

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hi guys, im using gigabyte z370 gaming 7 motherboard + 8600k, was thinking of upgrading to i9 9900k in future, googled online many says the 8+2 phase vrm can handle 9900k moderately, what u guys think? any opinion? i know it not as good as z390 power phase but just wondering only if i slot in 9900k is it straight on stock good to go with games and etc? and yeah of course will not run small fft stress test with prime95 lol because with current 8600k oc to 5ghz @ 1.365v peak power reading about 160w the vrm temp hovering around 80c already, if no stress test at normal 5ghz 1.365v the vrm about 51c max with games etc... so i guess with 9900k sure is a no stress test first laugh.gif

This post has been edited by djandrew: Jan 3 2019, 06:41 PM
cstkl1
post Jan 3 2019, 04:48 PM

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QUOTE(djandrew @ Jan 3 2019, 10:38 AM)
hi guys, im using gigabyte z370 gaming 7 motherboard + 8600k, was thinking of upgrading to i9 9900k in future, googled online many says the 8+2 phase vrm can handle 9900k moderately, what u guys think? any opinion? i know it not as good as z390 power phase but just wondering only if i slot in 9900k is it straight on stock good to go with games and etc? and yeah of course will not run small fft stress test with prime95 lol because with current 8600k oc to 5ghz @ 1.365v peak power reading about 160w the vrm temp hovering around 80c already if no stress test, at normal 5ghz 1.365v the vrm about 51c max with games etc... so i guess with 9900k sure is a no stress test first  laugh.gif
*
i would wait...

ure just seeing da end of life of skylake pcs...

the new IPC from intel especially da 2nd gen of dat should slaughter everything we know now.
djandrew
post Jan 3 2019, 06:40 PM

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QUOTE(cstkl1 @ Jan 3 2019, 04:48 PM)
i would wait...

ure just seeing da end of life of skylake pcs...

the new IPC from intel especially da 2nd gen of dat should slaughter everything we know now.
*
what u mean bro the new IPC from intel? u mean the next upcoming intel processor?
cstkl1
post Jan 3 2019, 09:32 PM

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QUOTE(djandrew @ Jan 3 2019, 06:40 PM)
what u mean bro the new IPC from intel? u mean the next upcoming intel processor?
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da current gen.. is a sham.
its still based on a 6th gen skylake. improvement has been clockspeed, few more pcie lane on pch chipset, usb 3.1, and finally 9900k optimization for meltdown/specter.. but da cpu single thread clock to clock about the same...

the next gen we been looking at dmi 4.0, intel says double the instruction per cycle etc.. so...

owikh84
post Jan 10 2019, 10:49 PM

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Prime95 29.5 with AVX custom blend 1344K/1344K for 3 hours
CPU temp: 69.4c average, 72c max
CPU package power: 143W max
VRM temp: 65c max
» Click to show Spoiler - click again to hide... «


Prime95 26.6 without AVX small FFT for 25mins
CPU temp: 90.6c average, 96c max
CPU package power: 243W max
VRM temp: 98c max doh.gif
» Click to show Spoiler - click again to hide... «

Gene's VRM seriously needs some active cooling if you're stressing the CPU at ~250W...


owikh84
post Jan 20 2019, 01:23 PM

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Just got free time to play with RAM OC sweat.gif
Let's start with DDR4-4500...

DDR4-4500 CL19-19-19-39-2T 1.45v:
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Gene XI is rated up to DDR4-4800 on the paper, next I'd try to push it further such as 4500 CL18-19-19/17-18-18, 4600 CL19-19-19 etc...



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