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Skylake-X/Kaby Lake-X Combined Discussion - Page 553

post #5521 of 6069
The wandering you see in Linux.. if you have perf gov set and C-states disabled and EIST disabled / etc...

is not as much as you think. Depending on the tool you are using , you should assume the BCLK reading is not that precise. So if your tool is reading a variation of 40-60MHz from your set speed.. i.e. 4480MHz-4520MHz.. you should see how much the multipler is changing and how much the bclk reading is changing on the tool.

That's less than 1% difference/error in set speed.. it could very easily just be a problem of not being able to read it Exactly.

This isn't saving power. Has nothing to do with it. If you use the correct settings and disable the power saving functions the frequency is hardset. It is the tool not being 100% precise, and possibly the BIOS/board having an issue. It isn't some huge conspiracy.

Intel isn't trying to jip me by reducing my core frequency by 6MHz every few seconds. That isn't how it works.
post #5522 of 6069
Quote:
Originally Posted by eatthermalpaste View Post

The wandering you see in Linux.. if you have perf gov set and C-states disabled and EIST disabled / etc...

is not as much as you think. Depending on the tool you are using , you should assume the BCLK reading is not that precise. So if your tool is reading a variation of 40-60MHz from your set speed.. i.e. 4480MHz-4520MHz.. you should see how much the multipler is changing and how much the bclk reading is changing on the tool.

That's less than 1% difference/error in set speed.. it could very easily just be a problem of not being able to read it Exactly.

This isn't saving power. Has nothing to do with it. If you use the correct settings and disable the power saving functions the frequency is hardset. It is the tool not being 100% precise, and possibly the BIOS/board having an issue. It isn't some huge conspiracy.

Intel isn't trying to jip me by reducing my core frequency by 6MHz every few seconds. That isn't how it works.

For me its 4.1 - 4.4 ghz on the cores
power states are disabled, and I'm still rummaging through the bios and online for answers on this on settings I can disable/enable to help this.

Tool being used was throttle stop and HWinfo64
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post #5523 of 6069
what motherboard are you using?
post #5524 of 6069
I bought my i9-7980XE from Micro Center $1,999.00

post #5525 of 6069
Quote:
Originally Posted by eatthermalpaste View Post

what motherboard are you using?

R6E
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post #5526 of 6069
well maybe our boards have the same problem. No harm in trying.

Set Turbo Boost Max 3.0 to Legacy mode
Speed Shift Enabled
Enhanced Multi-Core Perf Enable
C -States - Enable
EIST - Enable
Energy Efficient Turbo - Disable

in windows set power options to Performance mode

this fixes a certain kind of frequency problem I'm currently having but it is not that similar.

The other problem I have is related to AVX. Have you defined AVX Offsets? If your AVX Offsets are still at Auto.. I'd suggest hard setting them to 0. Or 1 if you like. I am not sure about R6E BIOS but a few boards I've used so far the Auto setting for the AVX and AVX512 Offset will be 2-3 and I have to hardset to 0.

Also if there is a Max CPU temp option and it is set to Auto.. hardset that to what you'd like as well. Some have the mistake of having these set to 86C instead of 96C.


so 1. make sure its not overheating.. cpu or vrms

2. make sure iti s not due to avx offset

3. see if it is due to skylake-x/kabylake-x issue to do with the power saving options. C-states and EIST do not work properly for me which is why I have to enable them currently in the BIOS and disable on my own in OS.
post #5527 of 6069
Quote:
Originally Posted by eatthermalpaste View Post

well maybe our boards have the same problem. No harm in trying.

Set Turbo Boost Max 3.0 to Legacy mode
Speed Shift Enabled
Enhanced Multi-Core Perf Enable
C -States - Enable
EIST - Enable
Energy Efficient Turbo - Disable

in windows set power options to Performance mode

this fixes a certain kind of frequency problem I'm currently having but it is not that similar.

The other problem I have is related to AVX. Have you defined AVX Offsets? If your AVX Offsets are still at Auto.. I'd suggest hard setting them to 0. Or 1 if you like. I am not sure about R6E BIOS but a few boards I've used so far the Auto setting for the AVX and AVX512 Offset will be 2-3 and I have to hardset to 0.

Also if there is a Max CPU temp option and it is set to Auto.. hardset that to what you'd like as well. Some have the mistake of having these set to 86C instead of 96C.


so 1. make sure its not overheating.. cpu or vrms

2. make sure iti s not due to avx offset

3. see if it is due to skylake-x/kabylake-x issue to do with the power saving options. C-states and EIST do not work properly for me which is why I have to enable them currently in the BIOS and disable on my own in OS.

AVX is -3 and 512 is -5

Already stated that not overheating VRMS are well within 50C tops CPU temps max hitting are mid 70's for the hottest core mostly high 50's and 60's

Power plan is on performance

Setting the other values now.
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post #5528 of 6069
Quote:
Originally Posted by LunaP View Post

AVX is -3 and 512 is -5

Already stated that not overheating VRMS are well within 50C tops CPU temps max hitting are mid 70's for the hottest core mostly high 50's and 60's

Power plan is on performance

Setting the other values now.

If your AVX offset is -3

and your frequency is going between 4100 to 4400 in OBS.. doesn't it kind of answer itself.. this sounds like AVX offset in effect.

Or is it going through a massive range between those 2 frequencies?
post #5529 of 6069
Quote:
Originally Posted by eatthermalpaste View Post

If your AVX offset is -3

and your frequency is going between 4100 to 4400 in OBS.. doesn't it kind of answer itself.. this sounds like AVX offset in effect.

Or is it going through a massive range between those 2 frequencies?

You'd think but since OBS doesn't use AVX it wouldn't make sense either,

Intel speed shift tech doens't have legacy option, just disabled, enabled or Auto, its currently disabled. i'll set it to Auto for now.

Unable to find EIST or energy efficient turbo though.
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post #5530 of 6069
Quote:
Originally Posted by LunaP View Post

You'd think but since OBS doesn't use AVX it wouldn't make sense either,

Intel speed shift tech doens't have legacy option, just disabled, enabled or Auto, its currently disabled. i'll set it to Auto for now.

Unable to find EIST or energy efficient turbo though.

Speed shift does not, Intel Max Turbo Boost Technlology 3.0 was the setting with Legacy / Native.. let me know if that has the option

EIST - Enhanced Intel Speed Step.. speed step option should be in there but if you can't find it the nits already on auto.

Energy Efficient Turbo might be under a different name with asus.. wherever it is it def needs to be disabled.


through some quick googling every thing I've clicked so far is confirming that OBS uses AVX instructions... are you sure it doesn't?
Edited by eatthermalpaste - 11/20/17 at 1:40pm
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