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P67 Bios: Should I change the Load-line Calibration, Phase Control and CPU Current Capability values for 4.6+ GHz?

post #1 of 4
Thread Starter 
What the title says, I have messed with those values a bit but didn't notice any changes to my system. I have been browsing various pages trying to understand whether these values should be changed or not, but I haven't come across a definite answer.

At the moment I have:

Load-line Calibration on Auto
Phase Control on Manual -> Ultra Fast
CPU Current Capability on 120%

But as I mentioned I was just gambling and changed those values just to test, didn't see any changes at all though to the overall performance or voltages. Actually I believe that CPU-Z shows 1.28-1.3V during Prime95 at 4.6GHz, while a couple days ago it showed 1.33-1.35V on 4.5GHz and with the above options at default(before I changed the values). Could it be related?

Can someone experienced consult me whether I should change those values to optimize performance and if I plan to go 4.7 and above, should those be changed again?
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My Gaming Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-2500K 4.7GHz 1.376V Asus P67 Sabertooth *B3 Revision* Gigabyte GeForce GTX 570 SoC 1280MB 900/2100MHz G.Skill RipJawsX (2x4GB) 1600MHz 8-8-8-24 1T 
Hard DriveHard DriveOptical DriveCooling
Crucial RealSSD M4 128GB 2.5" Samsung SpinPoint F3 1TB ASUS DRW-24B3ST Corsair A70 Dual Fan CPU Cooler 
MonitorKeyboardPowerCase
LG LCD 24" 1920x1200 Logitech G510 Gaming Keyboard OCZ StealthXStream 2 700W NZXT Phantom Enthusiast Full Tower Case - White 
MouseAudioAudio
Logitech G500 Gaming Mouse M-Audio Studiophile AV 40 Creative Sound Blaster X-Fi XtremeGamer 
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post #2 of 4
Quote:
Originally Posted by Demarki View Post

What the title says, I have messed with those values a bit but didn't notice any changes to my system. I have been browsing various pages trying to understand whether these values should be changed or not, but I haven't come across a definite answer.
At the moment I have:
Load-line Calibration on Auto
Phase Control on Manual -> Ultra Fast
CPU Current Capability on 120%
But as I mentioned I was just gambling and changed those values just to test, didn't see any changes at all though to the overall performance or voltages. Actually I believe that CPU-Z shows 1.28-1.3V during Prime95 at 4.6GHz, while a couple days ago it showed 1.33-1.35V on 4.5GHz and with the above options at default(before I changed the values). Could it be related?
Can someone experienced consult me whether I should change those values to optimize performance and if I plan to go 4.7 and above, should those be changed again?

Change LLC to Ultra High (75%)
Phase Control on Manual set to 350
CPU Current Capability to 130-140% for 4.7
You should be good to go.

Higher LLC levels will result in higher voltage showing in Windows while under load. This helps with stability. Check out the Sandy Stable link in my signature. It's a great place for info.
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Black Sunshine II
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post #3 of 4
Thread Starter 
Quote:
Originally Posted by breenemeister View Post

Change LLC to Ultra High (75%)
Phase Control on Manual set to 350
CPU Current Capability to 130-140% for 4.7
You should be good to go.
Higher LLC levels will result in higher voltage showing in Windows while under load. This helps with stability. Check out the Sandy Stable link in my signature. It's a great place for info.

Thanks for the reply, I tested it myself and found some settings that produced very good results:

LLC to High (since Ultra High bumps the voltage from 1.35 to 1.38V)
Phase Control to Ultra Fast
CPU Current Capability 130%

Now I have the chip stable at 4.7Ghz at 1.35 and around 60c load temperatures (and 29c idle), I might try to go for 4.8GHz but I am a bit hesitant since stability > minor performance increase for me.
You think that my chip would be able to handle 4.8 easily?
My Gaming Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-2500K 4.7GHz 1.376V Asus P67 Sabertooth *B3 Revision* Gigabyte GeForce GTX 570 SoC 1280MB 900/2100MHz G.Skill RipJawsX (2x4GB) 1600MHz 8-8-8-24 1T 
Hard DriveHard DriveOptical DriveCooling
Crucial RealSSD M4 128GB 2.5" Samsung SpinPoint F3 1TB ASUS DRW-24B3ST Corsair A70 Dual Fan CPU Cooler 
MonitorKeyboardPowerCase
LG LCD 24" 1920x1200 Logitech G510 Gaming Keyboard OCZ StealthXStream 2 700W NZXT Phantom Enthusiast Full Tower Case - White 
MouseAudioAudio
Logitech G500 Gaming Mouse M-Audio Studiophile AV 40 Creative Sound Blaster X-Fi XtremeGamer 
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My Gaming Rig
(16 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i5-2500K 4.7GHz 1.376V Asus P67 Sabertooth *B3 Revision* Gigabyte GeForce GTX 570 SoC 1280MB 900/2100MHz G.Skill RipJawsX (2x4GB) 1600MHz 8-8-8-24 1T 
Hard DriveHard DriveOptical DriveCooling
Crucial RealSSD M4 128GB 2.5" Samsung SpinPoint F3 1TB ASUS DRW-24B3ST Corsair A70 Dual Fan CPU Cooler 
MonitorKeyboardPowerCase
LG LCD 24" 1920x1200 Logitech G510 Gaming Keyboard OCZ StealthXStream 2 700W NZXT Phantom Enthusiast Full Tower Case - White 
MouseAudioAudio
Logitech G500 Gaming Mouse M-Audio Studiophile AV 40 Creative Sound Blaster X-Fi XtremeGamer 
  hide details  
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post #4 of 4
Quote:
Originally Posted by Demarki View Post

Thanks for the reply, I tested it myself and found some settings that produced very good results:
LLC to High (since Ultra High bumps the voltage from 1.35 to 1.38V)
Phase Control to Ultra Fast
CPU Current Capability 130%
Now I have the chip stable at 4.7Ghz at 1.35 and around 60c load temperatures (and 29c idle), I might try to go for 4.8GHz but I am a bit hesitant since stability > minor performance increase for me.
You think that my chip would be able to handle 4.8 easily?

If 4.7 is stable for 12 hours of prime blend at 1.35, then I would say you're almost assured of running 4,8. It could take anywhere from 1.38 to 1.4 vcore most likely. The Ultra High on LLC and the phase control on 350 were recommendations on your board from an Asus engineer that posted on the Hard OCP forum. Ultra High on my board pusts me just below whatever voltage I set in BIOS when under load. Also, you should have PLL overvoltage at least on auto if the system fails to boot at 4.8. By the way, temps around 6 for prime 95 load with a Corsair A70 sounds like great temps. I ran a stock prime 95 run at 3.6 GHz last night and quickly got up to almost 60 on my hottest core with the Silver Arrow. You definitely have room for additional voltage on the cpu. Keep the temps below 75.
Black Sunshine II
(17 items)
 
Wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Intel Xeon x5675 B1 @ 4.0 Gigabyte GA-X58A-UD3R v.2.0 Gigabyte Radeon 460 G.SKILL Ripjaws Series 6GB (3x2GB) DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
120GB Intel 510 SSD Samsung 1TB WD LiteOn iHAS324-98 Y Cougage Tru Spirit (lapped) with Akasa Viper Pu... 
OSMonitorPowerCase
Windows 7 Ultimate 64bit Dual Asus 24 inch 1080P TN Corsair TX650 Cheapo Antec 
Mouse
Logitech Wireless 
  hide details  
Reply
Black Sunshine II
(17 items)
 
Wife's Rig
(15 items)
 
 
CPUMotherboardGraphicsRAM
Intel Xeon x5675 B1 @ 4.0 Gigabyte GA-X58A-UD3R v.2.0 Gigabyte Radeon 460 G.SKILL Ripjaws Series 6GB (3x2GB) DDR3 1600 
Hard DriveHard DriveOptical DriveCooling
120GB Intel 510 SSD Samsung 1TB WD LiteOn iHAS324-98 Y Cougage Tru Spirit (lapped) with Akasa Viper Pu... 
OSMonitorPowerCase
Windows 7 Ultimate 64bit Dual Asus 24 inch 1080P TN Corsair TX650 Cheapo Antec 
Mouse
Logitech Wireless 
  hide details  
Reply
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