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i5 2500k - 1.35v @4.3-@4.5 is not working at all. Crap CPU? - Page 2

post #11 of 23
Quote:
Originally Posted by Slizu View Post

For me they are both same. CPU and that in UEFI. Why i cant go higher than 4.3 Ghz? :/

 

What does CPU-Z say your voltage is when you run Prime95?

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It's a computer!
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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 
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250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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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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post #12 of 23
Thread Starter 
1.4 UEFI and in CPU-z 1.4 stable or something like 1.403.
Still with 4.3, because 4.4 is not booting windows.
Now trying lowest V for 4.3
post #13 of 23
Quote:
Originally Posted by Slizu View Post

1.4 UEFI and in CPU-z 1.4 stable or something like 1.403.
Still with 4.3, because 4.4 is not booting windows.
Now trying lowest V for 4.3

 

Weird. Enable Internal PLL Overvoltage once and see if 4.4 GHz works.

 

(also, it's 1.408V. It's always in increments of 0.008V)

 

If I'm understanding you correctly, you set Load-Line Calibration to Ultra High?

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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 
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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 #14 of 23
Thread Starter 
Yes LLC ultra high, and i was trying high. Will try that PLL.
Now i;ve got stable @4.3 with 1.33V
post #15 of 23
Thread Starter 
Okey, now it is working!
@4.4 with 1.35V (manual) LLC ultra high and working Prime95.
Can i leave that PLL enabled or should I turn it off?
post #16 of 23
You can leave it enabled. Also, 1.35V is hardly the max for SB. If you have sufficient cooling, I'd say going up to 1.45V is completely safe for 24/7 use.
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post #17 of 23
Thread Starter 
Testing now stable Vcore for @4.5.
Now i've got 1.376,1.384 and 1.400 for a second. You think I can leave it and my CPU will work fine for more years. I can go for lower, i care about life of my CPU!
post #18 of 23
You'll be fine. Once you get your voltages figured out for stability, you can set it up with offset so the voltage is actually way lower any time the CPU is idling or working with a low load, which will extend the life of the CPU.
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CPUMotherboardGraphicsRAM
Intel i5-8600K @ 5.3GHz / 1.4v Asus Z370 Maximus X Hero (WiFi-AC) EVGA GTX 980 Ti Classified  Corsair Vengeance LPX 4x8GB 3200MHz 
Hard DriveHard DriveCoolingCooling
Samsung 850 Pro 256 GB Western Digital Purple 2TB XSPC Raystorm Pro XSPC RX 360 
CoolingOSMonitorMonitor
XSPC D5 Photon 170 Windows 7 Professional Dell AW2518f BenQ GW2765 
MonitorKeyboardPowerCase
ViewSonic XG2401 Corsair Strafe RGB MX Silent EVGA SuperNOVA G2 750W Fractal Design Define S 
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Celerity
(21 items)
 
  
CPUMotherboardGraphicsRAM
Intel i5-8600K @ 5.3GHz / 1.4v Asus Z370 Maximus X Hero (WiFi-AC) EVGA GTX 980 Ti Classified  Corsair Vengeance LPX 4x8GB 3200MHz 
Hard DriveHard DriveCoolingCooling
Samsung 850 Pro 256 GB Western Digital Purple 2TB XSPC Raystorm Pro XSPC RX 360 
CoolingOSMonitorMonitor
XSPC D5 Photon 170 Windows 7 Professional Dell AW2518f BenQ GW2765 
MonitorKeyboardPowerCase
ViewSonic XG2401 Corsair Strafe RGB MX Silent EVGA SuperNOVA G2 750W Fractal Design Define S 
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post #19 of 23
Quote:
Originally Posted by Slizu View Post

Okey, now it is working!
@4.4 with 1.35V (manual) LLC ultra high and working Prime95.
Can i leave that PLL enabled or should I turn it off?

 

You will have to leave Internal PLL Overvoltage enabled. I didn't expect it to be required for an overclock this small, but hey, whatever works!

 

I still don't recommend Offset because like I said, I end up with inferior performance and stability regardless of what attempts I make to stabilize it - and my CPU's full-load in Prime95 needs a higher core voltage (I forgot to mention that). I notice Windows takes slightly longer to boot with Offset Mode on and I also notice problems once in a while that I otherwise don't have with Manual Mode.

 

1.400V in Windows is safe in my opinion. Look at my sig rig.


Edited by TwoCables - 8/27/16 at 11:10am
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 #20 of 23
Thread Starter 
Okey, with your help I have learned a lot biggrin.gif
Now, I've got stable (i think) @4.5 with offset -0.005V and 70* temperatures max, and CPU Fan at 60% of speed.
Thank you a lot! Will see stability of that now.
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