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Kaby Lake Overclocking Guide [With Statistics] - Page 215

post #2141 of 2707
Quote:
Originally Posted by schoolofmonkey View Post

What can I say, it was the same with my 5820k, 6900k and now the 7700k.
Using adaptive voltage running any heavy AVX load will put the voltages over the set in BIOS unless you us manual.

Adaptive won't go any lower than what is set by the cpu's VID, which can vary from CPU to CPU, don't worry I was confused at first too, the guys explained it to me over on the x99 threads.

Here's my CPU VID, even though I have adaptive set as 1.25v, this was under a realbench load, which does use AVX.

I'm sure you know this, but if not, you can set a negative offset within your adaptive configuration to drop below VID if your chip is good enough to do it.
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post #2142 of 2707
Quote:
Originally Posted by schoolofmonkey View Post

What can I say, it was the same with my 5820k, 6900k and now the 7700k.
Using adaptive voltage running any heavy AVX load will put the voltages over the set in BIOS unless you us manual.

Adaptive won't go any lower than what is set by the cpu's VID, which can vary from CPU to CPU, don't worry I was confused at first too, the guys explained it to me over on the x99 threads.

Here's my CPU VID, even though I have adaptive set as 1.25v, this was under a realbench load, which does use AVX.
[ Warning: Spoiler! (Click to show)

if you want to know the stock VID, clrcmos, enter bios, set voltage control to offset and leave everything on Auto, F10, and re-enter bios - the voltage displayed in bios for vcore is the stock VID.

Quote:
Originally Posted by GnarlyCharlie View Post

The 4.2/4.5 I mentioned was what the board runs after a clear CMOS state, I don't recall if that sets the Asus or Intel multicore. I really didn't spend much time in the bios, ran thru Raja's guide - I don't think he even touched on multicore enhancement - got it stable at 4.8, didn't touch cache clock, 3200 on the ram and then tore it down to delid.
yeah, multicore enhancement is only operational at default settings. Pretty pointless on a "K" or "X" class cpu. That said, at stock ASUS ME on Auto will use the ASUS rules. Disable it to use the Intel rules... and ignore it completely if you OC your K chip as it was meant to be. wink.gif
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post #2143 of 2707
Assuming you are not limited by Voltage or Temp when overclocking the 7700K... what would be the next "culprit" for not being able to go +100 mhz on core...is it the chip itself not being able to provide more ?redface.gif
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post #2144 of 2707
Username: EDK-TheOne
CPU Model: i7-7700K
Base Clock: 100.
Core Multiplier: 50
Core Frequency: 5000
Cache Frequency: 4500
Vcore Mode: Adaptive
Vcore in UEFI: 1.305
Vcore: 1.296-1.305
FCLK: 1000
Cooling Solution: NotDelidded / AIO H100i / Chill Factor 3
Stability Test: One round Cinebench ---> after two or three round BSOD! it seems it occurred because of temperature of core two or one.mad.gif

Batch Number: Malaysia L639G772
Ram Speed: 2666 (4x4GB) 15-15-15-35 CR2
Ram Voltage: 1.20
VCCIO: 1.150
VCCSA: 1.150
Motherboard: MSI Z170A Gaming Pro Carbon (Bios ver: 1.7)
LLC Setting: Auto
Misc Comments: Auto

Edited by EDK-TheONE - 4/25/17 at 8:10am
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post #2145 of 2707
Quote:
Originally Posted by schoolofmonkey View Post

From what I understand if it happens at idle it means the idle voltages are too low.
You idle voltages are much lower than mine from what I see in your screenshots.
Mine - 0.774v vs Yours - 0.675v

What was your LLC setting?

Just updating BF1 so I can measure your VID and Vcore there.

I'm not running any negative offsets, so I'm surprised it's doing it happened at idle. In fact it wasn't even deep idle where my system was doing nothing. I was doing a copy of files from one HDD to another as I wanted to wipe an old drive and convert it to GPT and enable Bitlocker. Either way I didn't see the CPU pushing turbo speeds for that. IIRC 0.67v or so was what my system was doing previously. in full auto mode.

Running LLC5.

I'm not pushing my system to crazy limits too (I bench tested 4.9GHz @ 1.34V so I gave it an extra 0.01 cushion for regular use), and set XMP. VCCIO and VCCSA at 1.2 should be enough for 3200 RAM...
Edited by dmo580 - 4/25/17 at 8:35am
post #2146 of 2707
Another nice result:

Username: EDK-TheOne
CPU Model: i7-7700K
Batch Number: Malaysia L639G772
Base Clock: 100.
Core Multiplier: 46
Core Frequency: 4600
Cache Frequency: 4200
Vcore Mode: Auto
Vcore in UEFI: 1.120
Vcore: Load=1.112 Idle=1.120 biggrin.gif
FCLK: 1000
Cooling Solution: NotDelidded / AIO H100i / Chill Factor 3
PSU: Green 700HP
Stability Test: Real Bench H264 Encode 10 loops thumb.gif Max CPU Package Power=73 Watts /// Playing One hour BF1 Rock Solid Stable!

Ram Speed: 2666 (4x4GB) 15-15-15-35 CR2
Ram Voltage: 1.20
VCCIO: 1.100
VCCSA: 1.050
Motherboard: MSI Z170A Gaming Pro Carbon (Bios ver: 1.7)
LLC Setting: Auto
Misc Comments:

Edited by EDK-TheONE - 4/25/17 at 1:26pm
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post #2147 of 2707
Quote:
Originally Posted by schoolofmonkey View Post

What can I say, it was the same with my 5820k, 6900k and now the 7700k.
Using adaptive voltage running any heavy AVX load will put the voltages over the set in BIOS unless you us manual.

Adaptive won't go any lower than what is set by the cpu's VID, which can vary from CPU to CPU, don't worry I was confused at first too, the guys explained it to me over on the x99 threads.

Here's my CPU VID, even though I have adaptive set as 1.25v, this was under a realbench load, which does use AVX.


Interesting, so what was your average Vcore during RealBench, was it 1.28V? If so, that matches the behaviour I'm getting at 4.8GHz using AVX loads. Bios is set to 1.25V adaptive and LLC5 as mentioned. Gaming stays at 1.25V which is what I want. This is so strange, since other users are not getting the same behaviour. I'll chart my Vcore and VID in BF1 and RealBench when I get home tonight and see if there's a correlation.

I'm just super super confused because there are posts from this very thread, indicating that what you said isn't true. Like this one:
http://www.overclock.net/t/1621347/kaby-lake-overclocking-guide-with-statistics/300#post_25824364
Edited by cxmachi - 4/25/17 at 11:23am
post #2148 of 2707
Quote:
Originally Posted by schoolofmonkey View Post

It will go off the cpus VID and draw more power, this only happens with adaptive voltages.
If you set a manual voltage it won't.
I did a test running DVID and web browsing VID request just as much as AVX.

DVID, Auto LLC, Prime95 Max 1.332v, RealBench Max 1.284v, Web browsing Max 1.320v idle ~ 0.200v-0.800v,
post #2149 of 2707
Quote:
Originally Posted by cxmachi View Post

Interesting, so what was your average Vcore during RealBench, was it 1.28V? If so, that matches the behaviour I'm getting at 4.8GHz using AVX loads. Bios is set to 1.25V adaptive and LLC5 as mentioned. Gaming stays at 1.25V which is what I want. This is so strange, since other users are not getting the same behaviour. I'll chart my Vcore and VID in BF1 and RealBench when I get home tonight and see if there's a correlation.

I'm just super super confused because there are posts from this very thread, indicating that what you said isn't true. Like this one:
http://www.overclock.net/t/1621347/kaby-lake-overclocking-guide-with-statistics/300#post_25824364
VID in the CPU works according to CPU load, multiplier, temperature.smile.gif

Serial Voltage Identification "SVID": A few generations back, Intel introduced serial voltage identification (SVID) which is a protocol the CPU uses to communicate with the voltage regulator. The power control unit inside the CPU uses SVID to communicate with the PWM controller that controls the voltage regulator. This allows the CPU to pick its optimum voltage depending on current conditions (temperature, frequency, load, etc.). You can actually use a combination of SVID and LLC to get an optimal VCore instead of manually setting it. If you start your system without making any changes, your VID (which some refer to as the stock voltage) might be 1.25v, but if you lower your CPU multiplier and restart, you will find your VID has dropped automatically. The reverse happens if you increase your clock and do not set any VCore. Intel's latest CPUs are able to pick their own voltage, and this comes into play if you want to utilize "offset" / "adaptive" voltage. The good news is that if you come from Haswell, you should look forward to a CPU that has the same or better durability.

Read more: http://www.tweaktown.com/guides/7481/tweaktowns-ultimate-intel-skylake-overclocking-guide/index5.html
Edited by wingman99 - 4/25/17 at 1:41pm
post #2150 of 2707
Quote:
Originally Posted by wingman99 View Post

VID in the CPU works according to CPU load, multiplier, temperature.smile.gif

Yes, but I'm still stuck wondering what exactly is going on with my voltages? Isn't setting a voltage for adaptive voltage supposed to ignore the VID and set your stated voltage in the UEFI?

Again, my end goal here is to have 1.25V Vcore when I'm at full load, regardless if it's AVX or non-AVX. Currently, with my UEFI settings, I'm getting 1.28V during AVX loads and 1.25V during non-AVX loads like gaming. Bumping down LLC from 5 to 4, I can get 1.264V on full load on AVX, and 1.232V on non-AVX/gaming (which I'm not confident will be stable since 1.25V is what I tested stability on)

Is there no way to do this when using adaptive voltage? Is this a common issue/normal?
Edited by cxmachi - 4/25/17 at 1:52pm
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