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i5 2500k on Gigabyte P67A-D3-B3 - first quest to OC

post #1 of 66
Thread Starter 
Hello all,
I'm new to the forums and OC but many topics have helped me great deal and I would like to thank for everything to begin with.

I've managed to pull my i5 2500k from 3.3 to 4.4 without problem by just multiplier.
I apply it both to CPU and Turbo Boost cores for each core (I found different opinions to use Turbo Boost or disable it).
It runs on P67A-D3-B3 Rev 2.
I've disabled all features in bios as recommended in many guides.
It runs stable with silent cooling @ 65-70*C
With loud cooling @ ~58-60*C
I didn't touch Voltage yet, it is left on auto.


Now I've encountered problem, when I push my multuplier to 45 or more it crashes at startup (can't even get to bios) and I have to pull out bios battery for a sec to reset.
To overcome this should I increase vcore Voltage manualy instead of Auto?
Also I noticed my auto settings are higher than recommended in guides (when 1.2V is reccomended my Auto sets it to 1.275V for example).

Thanks for any tips in advance.
My full setup is in signature.

PS: Thanks to guides and stuff on this forum I've discovered my ram was running @ 1333Mhz 9-9-9-24 instead of 1600Mhz 10-10-10-27 so thanks again.
post #2 of 66

Yes, always avoid Auto for the vCore when overclocking.

It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
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Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #3 of 66
I disagree. You'll get better results with manual (lower voltages) but Auto can be effective up to about 4.5 or so, you just have to watch and make sure it isn't pushing crazy volts. 4.5 on a 2500K is going to probably take over 1.3V, more likely 1.35V - as long as Auto isn't pushing it towards 1.4V I wouldn't worry about it right now. And I don't think the Auto voltage is causing your crash problems, as Auto normally errs strongly on the side of stability (which is why the voltages run high) and it should let you boot at least.

If you are having immediate crash problems you can try turning on Internal PLL Overvoltage and see if that helps you get into Windows. You can also turn Turbo Boost on, and enable the power saving features (C1E and EIST) as they work fine with overclocking. Once you get it into Windows at 4.5, post back with a load screenshot so we can see the actual load voltage, the one you posted in the OP looks to be at idle.
post #4 of 66
Thread Starter 
I had Turbo on beforehand.
I've turned on the EIST and C1E (also C3/C6).
Voltage still on auto with x44 multiplier seems fine.

Here is the screen of current test in progress, I'm running 1792 FFT - 1792 FFT on 12GB ram with 1 min timer.
post #5 of 66

I can agree with that, except when using an Offset voltage of course.  That's where avoiding the Auto setting is a much bigger deal.

It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
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It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #6 of 66
Thread Starter 
Quote:
Originally Posted by Forceman View Post

(...)And I don't think the Auto voltage is causing your crash problems, as Auto normally errs strongly on the side of stability (which is why the voltages run high) and it should let you boot at least.

If you are having immediate crash problems you can try turning on Internal PLL Overvoltage and see if that helps you get into Windows. You can also turn Turbo Boost on, and enable the power saving features (C1E and EIST) as they work fine with overclocking. Once you get it into Windows at 4.5, post back with a load screenshot so we can see the actual load voltage, the one you posted in the OP looks to be at idle.

I didn't touch Internal PLL Overvoltage yet.
With C1E and EIST and x45 booted into windows, started test same as mentioned above - 1792 FFT - 1792 FFT on 12GB ram with 1 min timer.
This resulted in crash after 2 minutes -> BSOD 0x00000124.
post #7 of 66
Quote:
Originally Posted by xonare View Post

I didn't touch Internal PLL Overvoltage yet.
With C1E and EIST and x45 booted into windows, started test same as mentioned above - 1792 FFT - 1792 FFT on 12GB ram with 1 min timer.
This resulted in crash after 2 minutes -> BSOD 0x00000124.

What was the load voltage at 4.5?
post #8 of 66
Thread Starter 
You mean core voltage in CPU-Z ? or something else?
post #9 of 66
Quote:
Originally Posted by xonare View Post

You mean core voltage in CPU-Z ? or something else?

 

Yep, the core voltage according to CPU-Z while Prime95 was/is running.

It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(20 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 DriveHard DriveHard Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Toshiba 3TB P300 
Optical DriveOptical DriveCoolingOS
Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail 
MonitorKeyboardPowerCase
AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 
MouseMouse PadAudioAudio
Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
post #10 of 66
Thread Starter 
1.068V didn't go higher, same as for x44 as on screenshot above.
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