Asus X99-A CPU voltage settings, need an experienced user.

[casperbaby]

Sounds like your overclock isn't stable. What kind of offsets did you set to run at 4.5?

The cpu voltage offset is 0.18 and cpu cache offset is 0.05 as mentioned by this thread.

This is someone else's thread... it is best to start your own to get the best help for you and to not hijack another's.

But to answer quickly, not resuming from sleep/hibernation is a known issue with some intel systems... assuming your O/C is stable. The answer, don't sleep or hibernate. You have an SSD so Im sure you are up and running around 30s anyway.

If this is a common issue and no solution so far, we can accept that. Looks like OC is still not recommended by Asus, Intel and Microsoft so they don't really take effort to find out. I searched many 4rum but there is no answer so far. I don't know if people encounter it or not. I'm still seeking for solution like PC can sleep and resume as normal but the power consumed maybe higher.

 

[Brando]

i'm glad i found this thread, thanks for posting. i had my 3570k set up like this but forgot how i did it. now i have the 5820k idling at 35c instead of 44c with an idle voltage og .918 instead og 1.2v. It works. Thanks!

 

[toran0x]

I got up a couple hours early this morning and SOLVED THE PROBLEM!

My 5820K now idles @1.5GHz with 0.94v and goes to full load @4.375GHz with 1.151V (almost EXACTLY what I was looking to do)!

The key to setting a CPU voltage range in the X99-A is in the {CPU Core Voltage}->[Adaptive Mode]. Apparently, [Adaptive Mode] does not use the same voltage set as [AUTO] mode does. [Adaptive Mode] uses a lower voltage set, thus (for overclocking at least) you will have to set a positive offset to keep the voltage within the stability range for your particular overclock.

For those of you with the X99-A looking to do this, here is what I did (knowing that my overclock was stable @1.15v at full load):

* Please keep in mind that every chip is different so your CPU will probably require different voltage offsets than mine, meaning that this is just a "model" of how to do get it working.

In BIOS->Advanced Mode->Ai Tweaker->

1) {CPU Core Voltage}-----------------------------> [Adaptive Mode]
2) {CPU Core Offset Mode Sign}------------------> [+]
3) {CPU Core Voltage Offset}---------------------> [0.18] (*This value will be specfic to your system)
4) {Additional Turbo Mode CPU Core Voltage}---> [Auto]
5) {CPU Cache Voltage}---------------------------> [Adaptive Mode]
6) {CPU Cache Offset Mode Sign}----------------> [+]
7) {CPU Cache Voltage Offset}--------------------> [0.05] (*This value will be specfic to your system)
8) {Additional Turbo Mode CPU Cache Voltage}--> [Auto]

Thats it, now the system auto-ranges the voltage on my 4.375GHz CPU overclock from 0.94V to 1.151v as needed.

If you find other settings that are required in order for this to work please post them as I did not have to investigate such possibilities. This just worked for me.

Please also note that it took a little "trial and error" to get the voltage offset tuned just right. Don't expect to hit your target range on the first try. I believe it took me 3 or 4 tries to get mine just right.

Hope that helps someone at least.

This is very cool. Curious if it can be done on Gigabyte X99 boards. Anyone know?

 

[Nebulous]

This is very cool. Curious if it can be done on Gigabyte X99 boards. Anyone know?

Only one way to find out; try it and see

 

[Joe88]

This is very cool. Curious if it can be done on Gigabyte X99 boards. Anyone know?

I'll take a look the bios, never changed anything except for vcore though and mine idles at about 35c

 

[EarthDog]

This is very cool. Curious if it can be done on Gigabyte X99 boards. Anyone know?

Gigabyte boards have adaptive voltage as do most(all?).

 

[Joe88]

does normal mean adaptive?

not sure which of these match up to those options

 

[EarthDog]

Offset is what you are looking for. It's added to your stock voltage on load.

 

[extremis11]

Hi everyone!

I also have an ASUS X99-A motherboard with 5820K cpu; i am running Ubuntu 14.04.3. I have followed your excellent advice and successfully OCed the cpu @4.2GHz with cache running @3.6GHz. I have experimented a little with voltage offsets and found that +0.1V (core and cache) works the best for me. I rely on sensors (from lm-sensors package) to get real-time temperatures and voltages:

coretemp-isa-0000
Adapter: ISA adapter
Physical id 0:  +87.0°C  (high = +93.0°C, crit = +103.0°C)
Core 0:         +80.0°C  (high = +93.0°C, crit = +103.0°C)
Core 1:         +79.0°C  (high = +93.0°C, crit = +103.0°C)
Core 2:         +84.0°C  (high = +93.0°C, crit = +103.0°C)
Core 3:         +83.0°C  (high = +93.0°C, crit = +103.0°C)
Core 4:         +87.0°C  (high = +93.0°C, crit = +103.0°C)
Core 5:         +77.0°C  (high = +93.0°C, crit = +103.0°C)

nct6791-isa-0290
Adapter: ISA adapter
Vcore:                  +0.97 V  (min =  +0.00 V, max =  +1.74 V)
in1:                    +1.02 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
AVCC:                   +3.36 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
+3.3V:                  +3.36 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in4:                    +1.00 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in5:                    +1.95 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in6:                    +0.58 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
3VSB:                   +3.41 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
Vbat:                   +3.33 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in9:                    +1.06 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in10:                   +0.39 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in11:                   +1.01 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in12:                   +0.58 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in13:                   +0.58 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
in14:                   +0.60 V  (min =  +0.00 V, max =  +0.00 V)  ALARM
fan1:                     0 RPM  (min =    0 RPM)
fan2:                  1632 RPM  (min =    0 RPM)
fan3:                     0 RPM  (min =    0 RPM)
fan4:                  1205 RPM  (min =    0 RPM)
fan5:                     0 RPM  (min =    0 RPM)
fan6:                     0 RPM
SYSTIN:                 +45.0°C  (high =  +0.0°C, hyst =  +0.0°C)  ALARM  sensor = thermistor
CPUTIN:                 +67.0°C  (high = +80.0°C, hyst = +75.0°C)  sensor = thermistor
AUXTIN0:                +51.0°C    sensor = thermistor
AUXTIN1:                +84.0°C    sensor = thermistor
AUXTIN2:                +26.0°C    sensor = thermistor
AUXTIN3:                +50.0°C    sensor = thermistor
PECI Agent 0:           +76.5°C  
PCH_CHIP_CPU_MAX_TEMP:   +0.0°C  
PCH_CHIP_TEMP:           +0.0°C  
PCH_CPU_TEMP:            +0.0°C  
intrusion0:            ALARM
intrusion1:            ALARM
beep_enable:           disabled

I guess Vcore here is wrong as i always get +0.95-0.97 no matter what cpu core voltage offset i have set. Is there any reliable way to get real-time voltages under linux?


Thanks in advance for any suggestions,
Kostas


ps. Temperatures are noticeably lower (5-10C) on full load and about the same on idle, even though i have a low end cpu air-cooler (CM Hyper 212 EVO) installed, so setting cpu core and cache voltages to adaptive mode does work!!!

 

[Sdizzle]

Thanks EarthDog! That information was extremely helpful. I too was experiencing the same issues and after reading this post I was able to get my 5960X running rock solid stable at 4.2Ghz with 1.050Vcore. While in idle it's sitting at 1.2Ghz with. 816Vcore. I havnt had this chip long so I need more time but I'm pretty sure I'll be able to hit 4.4Ghz with 1.150Vcore or less and continue tuning from there. Thanks again for the useful information.