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post #2991 of 3909
Quote:
Originally Posted by TwoCables View Post

Just do it because it's extremely easy to do and it's not time-consuming in the least bit. It's literally the easiest thing that you could possibly do here. Why haven't you done it yet?

So, as I posted before:

"Just go ahead and disable C3 and C6 right now. Why wait? We need to experiment with everything here.


If this doesn't make any difference, then disable SpeedStep (leave C3 and C6 disabled). If that doesn't make any difference, then disable C1E - leaving SpeedStep, C3 and C6 disabled.

If that doesn't make any difference, then do whatever you need to do in order to make sure the voltage doesn't go down while idling or under light loads. I think the problem is that the CPU isn't getting enough power in light-loading and idling situations. Think about it..."


There's no harm in experimenting with these settings. If this is the culprit, then think of the money you'll avoid wasting by not having an electrician come to your house.

C-States were off by default, so I have turned them on and will test now
post #2992 of 3909
Quote:
Originally Posted by Metros View Post


C-States were off by default, so I have turned them on and will test now

 

Now we're being scientific. It's very wise to be scientific (to be thorough and test everything), but as I said, we needed them to be disabled. We need do what it takes to make sure the voltage doesn't go down AT ALL in light-loading conditions or idle conditions. Enabling the C-states will have the opposite effect of what we're after, just as I explained.

 

Let's do this: open CPU-Z and watch the core voltage. Watch the voltage while idling and then put some load on the CPU, like Prime95 or something. What happens?

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(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #2993 of 3909
Quote:
Originally Posted by TwoCables View Post

Now we're being scientific. It's very wise to be scientific (to be thorough and test everything), but as I said, we needed them to be disabled. We need do what it takes to make sure the voltage doesn't go down AT ALL in light-loading conditions or idle conditions. Enabling the C-states will have the opposite effect of what we're after, just as I explained.

Let's do this: open CPU-Z and watch the core voltage. Watch the voltage while idling and then put some load on the CPU, like Prime95 or something. What happens?

Sure, I will do that when I get home, going to vote for the EU referendum soon smile.gif

Thanks for all your help
post #2994 of 3909
Quote:
Originally Posted by Metros View Post


Sure, I will do that when I get home, going to vote for the EU referendum soon smile.gif

Thanks for all your help

 

Oh I think I figured out why you haven't done it yet. You're like, always super busy.

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #2995 of 3909
Quote:
Originally Posted by TwoCables View Post

Oh I think I figured out why you haven't done it yet. You're like, always super busy.

No, the fact that it takes hours of playing games to test one thing otherwise it will not work, if you only play for like an hour and quit the game, it is normally fine

Enabling C-States did not work, working with your method now
post #2996 of 3909
Quote:
Originally Posted by Metros View Post


No, the fact that it takes hours of playing games to test one thing otherwise it will not work, if you only play for like an hour and quit the game, it is normally fine

Enabling C-States did not work, working with your method now

 

Normally, if the problem is due to the CPU's core voltage being too low in light-loading conditions and while idling, then it doesn't matter what you do before the light-loading or idling (like, it doesn't matter if you've been gaming all day or just doing light things all day). When this is the culprit, it's usually fixed by doing whatever it takes to increase the core voltage in those light-loading and idling conditions, and enabling C-states will have the opposite effect as that. So, I knew that enabling the C-states wouldn't do anything - but as computer scientists, we need to try just about everything.

 

Anyway, I still have a question. It's here:

 

"Let's do this: open CPU-Z and watch the core voltage. Watch the voltage while idling and then put some load on the CPU, like Prime95 or something. What happens?"

It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #2997 of 3909
Quote:
Originally Posted by TwoCables View Post

Normally, if the problem is due to the CPU's core voltage being too low in light-loading conditions and while idling, then it doesn't matter what you do before the light-loading or idling (like, it doesn't matter if you've been gaming all day or just doing light things all day). When this is the culprit, it's usually fixed by doing whatever it takes to increase the core voltage in those light-loading and idling conditions, and enabling C-states will have the opposite effect as that. So, I knew that enabling the C-states wouldn't do anything - but as computer scientists, we need to try just about everything.

Anyway, I still have a question. It's here:

"Let's do this: open CPU-Z and watch the core voltage. Watch the voltage while idling and then put some load on the CPU, like Prime95 or something. What happens?"

Yeah. just done it

This is the result (10 passes on Intel Burn Test) got a driver crash half way in the test (did recover) also, only once, due to ending the test while it just started did the voltage drop from CPU VCORE 0.976V to 0.968V

post #2998 of 3909
Quote:
Originally Posted by Metros View Post


Yeah. just done it

This is the result (10 passes on Intel Burn Test) got a driver crash half way in the test (did recover) also, only once, due to ending the test while it just started did the voltage drop from CPU VCORE 0.976V to 0.968V

 

Even though it's not CPU-Z like I asked, it's probably good enough since it's made by CPUID.

 

Anyway, so yeah, we need to prevent that voltage from dropping down like that just to see if that's the culprit. I know how to do that for Sandy and Ivy Bridge, but I don't know beyond that. Regardless, I want to see what happens for you when your voltage is constantly reading at the maximum performance level. Like you have observed, this only happens in light-loading and idling conditions. Right?


Edited by TwoCables - 6/23/16 at 5:27pm
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #2999 of 3909
Quote:
Originally Posted by TwoCables View Post

Normally, if the problem is due to the CPU's core voltage being too low in light-loading conditions and while idling, then it doesn't matter what you do before the light-loading or idling (like, it doesn't matter if you've been gaming all day or just doing light things all day). When this is the culprit, it's usually fixed by doing whatever it takes to increase the core voltage in those light-loading and idling conditions, and enabling C-states will have the opposite effect as that. So, I knew that enabling the C-states wouldn't do anything - but as computer scientists, we need to try just about everything.

Anyway, I still have a question. It's here:

"Let's do this: open CPU-Z and watch the core voltage. Watch the voltage while idling and then put some load on the CPU, like Prime95 or something. What happens?"

Idle voltages have not changed at all (apart from VIN, AVCC and 3VCC)
post #3000 of 3909
Quote:
Originally Posted by TwoCables View Post

Even though it's not CPU-Z, it's probably good enough since it's made by CPUID.

Anyway, so yeah, we need to prevent that voltage from dropping down like that just to see if that's the culprit. I know how to do that for Sandy and Ivy Bridge, but I don't know beyond that. Regardless, I want to see what happens for you when your voltage is constantly reading at the maximum performance level.

I will disable Intel Speedstep now and test it again, although during the whole test the voltages did not change (only when I quickly ended it at the start)

Also not sure I can disable each C-State, so that is with them all off including C1E

I have no idea why I got a driver crash
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