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Skylake Overclocking Guide [With Statistics] - Page 854

post #8531 of 11361
"Nice" to see others with volts the same as mine (6700k @ 4.7 @ ~1.365). All other seem to reach 4.8 @ 1.33 tongue.gif

I have to go way north of 1.4 (~1.44) to get it to pass a couple of minutes in any bench. But too high for my taste and to hot as well
Edited by Bogga - 8/18/16 at 3:39pm
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Gaming
(23 items)
 
My HTPC
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CPUMotherboardGraphicsGraphics
Intel i7 6700k Gigabyte Z170X G1 Gaming ASUS 1080 Strix ASUS 1080 Strix 
RAMHard DriveHard DriveCooling
Corsair Vengeance LED Intel 520 SSD Crucial BX100 EKWB 1080 Strix Nickel + Black backplate 
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EKWB 1080 Strix Nickel + Black backplate EKWB Supremacy Evo Nickel EKWB XE 480 Radiator EKWB XE 360 Radiator 
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EKWB XRES 140 Revo D5 + Multitop EKWB XRES 140 Revo D5 + Multitop be quiet! Silent Wings 3 2200rpm x12 Barrow Fittings 
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post #8532 of 11361
Warning: Spoiler! (Click to show)
Quote:
Originally Posted by Flattervieh View Post

Username:Flattervieh
CPU Model:6700k
Base Clock: 100
Core Multiplier: 47
Core Frequency: 4700
Cache Frequency: 4100
Vcore in UEFI: 1,365 Adaptive
Vcore: OCCT: 1,423 x264: 1,408
FCLK: 1000
Cooling Solution: Kraken X61
Stability Test: OCCT 4.4.2 1 Hour
x264 16T Normal 5 Hours

Batch Number: Malaysia L605F197
Ram Speed: 3000 15-17-17-35-2T
Ram Voltage: 1,3530
Motherboard: ASUS Maximus VIII Ranger
LLC Setting: Level 5
Misc Comments: VRM Spreadspectrum Auto, EIST Enabled

I'm now at 4.8 GHz

Username:Flattervieh
CPU Model:6700k
Base Clock: 100
Core Multiplier: 48
Core Frequency: 4800
Cache Frequency: 4100
Vcore in UEFI: 1.390 Adaptive
Vcore: OCCT: 1,444 x264: TBD
FCLK: 1000
Cooling Solution: Kraken X61
Stability Test: OCCT 4.4.2 1 Hour
x264 16T Normal TBD Hours

Batch Number: Malaysia L605F197
Ram Speed: 3000 15-17-17-35-2T
Ram Voltage: 1.3530
Motherboard: ASUS Maximus VIII Ranger
LLC Setting: Level 5
Misc Comments: VRM Spreadspectrum Disabled, EIST Enabled
post #8533 of 11361
So I manged to OC my 6700K to 4,5Ghz@1.280V stable. But I have a Ram issue and dont know what to do. If i enable XMP profile stability turns to **** and I get BSOD in daily usage. Prime runs fine though. Mainboard is an Asus Z170 Pro Gaming and Ram is Corsair CMK16GX4M2B3000C15 2x16GB Kit. If everything is on auto and Ram runs at 2133Mhz everything is stable. As soon as I turn on XMP Profile in Bios BSOD are happening from time to time. XMP Profile sets Ram Timings ans Voltage to 1.35V and seems correct. Anyone has an idea what might be the issue? Would be nice if I could run it at the promoted 3000mhz.
post #8534 of 11361
Quote:
Originally Posted by abso View Post

So I manged to OC my 6700K to 4,5Ghz@1.280V stable. But I have a Ram issue and dont know what to do. If i enable XMP profile stability turns to **** and I get BSOD in daily usage. Prime runs fine though. Mainboard is an Asus Z170 Pro Gaming and Ram is Corsair CMK16GX4M2B3000C15 2x16GB Kit. If everything is on auto and Ram runs at 2133Mhz everything is stable. As soon as I turn on XMP Profile in Bios BSOD are happening from time to time. XMP Profile sets Ram Timings ans Voltage to 1.35V and seems correct. Anyone has an idea what might be the issue? Would be nice if I could run it at the promoted 3000mhz.
Check what vccio and vccsa voltages are when xmp is enabled.
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post #8535 of 11361
Quote:
Originally Posted by abso View Post

So I manged to OC my 6700K to 4,5Ghz@1.280V stable. But I have a Ram issue and dont know what to do. If i enable XMP profile stability turns to **** and I get BSOD in daily usage. Prime runs fine though. Mainboard is an Asus Z170 Pro Gaming and Ram is Corsair CMK16GX4M2B3000C15 2x16GB Kit. If everything is on auto and Ram runs at 2133Mhz everything is stable. As soon as I turn on XMP Profile in Bios BSOD are happening from time to time. XMP Profile sets Ram Timings ans Voltage to 1.35V and seems correct. Anyone has an idea what might be the issue? Would be nice if I could run it at the promoted 3000mhz.

Higher ram frequency might've made your overclock more unstable. I only realized that when I had to raise vcore a bit after overclocking RAM. Most 1.35V XMP profile can cope with stock CPU clocks but less so for overclocked ones.
Also can try raise VCCIO and VCCSA a bit (and possibly DRAM voltage up to 1.4V if you're brave). My personal bet is on VCCSA or RAM timings though as I've never got BSODs with too low VCCIO or DRAM (brought me fail boot/other strange behaviors instead).
If even VCCIO/VCCSA wouldn't work for you then I'm afraid you might have to test out the best capable frequency/timings for your RAM by changing the values manually.
Edited by Cornerer - 8/18/16 at 9:07pm
post #8536 of 11361
Quote:
Originally Posted by HOODedDutchman View Post

Check what vccio and vccsa voltages are when xmp is enabled.

I just checked.

Auto Settings (2133Mhz): DRAM = 1.2V; VCCIO = 0.960V; SA = 1.064V
XMP Settings (3000Mhz): DRAM = 1.35V; VICCO = 1.144V; SA = 1.216V

So if i try manual mode to try to set up my Ram instead of XMP, what voltages i should go with?


Another thing I noticed, is that CPU temperatures are getting higher in prime95 when I turn on XMP (3000mhz). On Auto (2133Mhz) I get maxT. of ~73°C but on XMP maxT. is 83°C if i Run Prime for 30min. CPU Vcore is the same though.
Edited by abso - 8/19/16 at 1:15am
post #8537 of 11361
Quote:
Originally Posted by abso View Post

I just checked.

Auto Settings (2133Mhz): DRAM = 1.2V; VCCIO = 0.960V; SA = 1.064V
XMP Settings (3000Mhz): DRAM = 1.35V; VICCO = 1.144V; SA = 1.216V

So if i try manual mode to try to set up my Ram instead of XMP, what voltages i should go with?


Another thing I noticed, is that CPU temperatures are getting higher in prime95 when I turn on XMP (3000mhz). On Auto (2133Mhz) I get maxT. of ~73°C but on XMP maxT. is 83°C if i Run Prime for 30min. CPU Vcore is the same though.
Leave xmp enabled and bump vccsa to 1.25v manually and give it a shot.
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post #8538 of 11361
Quote:
Originally Posted by abso View Post

Another thing I noticed, is that CPU temperatures are getting higher in prime95 when I turn on XMP (3000mhz). On Auto (2133Mhz) I get maxT. of ~73°C but on XMP maxT. is 83°C if i Run Prime for 30min. CPU Vcore is the same though.

It's pretty normal especially when you bump up VCCIO & VCCSA, and also exactly why pushing for higher RAM frequencies usually not worth it unless you got insane cooling or you use memory-intensive software very often.
In your case I would say saving that 10C heat for extra 100MHz on CPU would give you more gain than +870MHz on RAM.
post #8539 of 11361
Quote:
Originally Posted by Cornerer View Post

It's pretty normal especially when you bump up VCCIO & VCCSA, and also exactly why pushing for higher RAM frequencies usually not worth it unless you got insane cooling or you use memory-intensive software very often.
In your case I would say saving that 10C heat for extra 100MHz on CPU would give you more gain than +870MHz on RAM.
Exactly why I went with 2666 instead of 3200mhz for same cost. Easier to just set xmp and go then get higher clocked ram and then run it at lower clocks because a) you could get a weak imc that can't handle 3200mhz without crazy vccsa or b) cpu potential overclocks better with lower ram clocks.
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MyRig
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5820k @4.5ghz 1.29v ASUS X99-e MSI RX 480 8gb @1475 core 2150 memory 1.25v NZX... 4x4gb G.Skill Ripjaw 4 2400c15 
Hard DriveHard DriveHard DriveCooling
Samsung 840 EVO 250gb Samsung 850 EVO 500gb Game Drive Seagate 1.5tb Storage Drive Corsair H115i 
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post #8540 of 11361
Quote:
Originally Posted by HOODedDutchman View Post

Exactly why I went with 2666 instead of 3200mhz for same cost. Easier to just set xmp and go then get higher clocked ram and then run it at lower clocks because a) you could get a weak imc that can't handle 3200mhz without crazy vccsa or b) cpu potential overclocks better with lower ram clocks.

I got mine because it was cheap (60€) and was in support list of my mainboard. Didnt know there were so many potential issues and it will effect cpu temperatures.
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