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i5 2500k can't even surpass 4.1 - Page 9

post #81 of 102
Quote:
Originally Posted by iam1simpleguy View Post


You're a kid at play rolleyes.gif
A mad scientist redface.gif
Go for it. thumb.gif
thx for the encouragement twocables

well enabling pll voltage really did made huge difference.with pll disabled i was not able to login as mentioned before with 1.320 volts but after enabling it not only i could login but also able to do primetest for 10-15 mins though after that i get bsods.anyhow after lot of testing and bsods and primetest i finally manage to run primetest with 45x and 1.355volts.i ran test for 3:25hrs with temps touching 70c occasianally and i think that seems stable enough imo.i wanted to run for 6hrs but my stock cooler of hyper212 started stuttering,and i guess i'm gonna need new one.

I did tried with low volts and higher volts and either i got bsods even after 40mins of primetest.
i'm really thankfull to you guys helping me to reach 4.5ghz which seems impossible as the post says can't eve surpass 4.1.

but i would like expert opinions that are tests enough for running 24/7 at 4.5ghz?

 

You're VERY welcome, my friend! :)

 

Unfortunately, the effectiveness of Prime95 as a stability test for your system when it's overclocked can't be judged solely on time because it's not putting a constant unchanging load on the CPU (you wouldn't want it to anyway because that would be an extremely limited test). Instead, when overclocked this high, you want to get through all of the FFTs that Prime95 has, and I think it has 82. At the default of 3 minutes per FFT with an added pause or break in between each one, this can take 6-8 hours depending on your system. You can watch the log to help you see where it's at whenever you want.

 

So, 3.25 hours very likely isn't enough. Seeming stable and actually being stable can be two very different things, which you can sometimes frustratingly discover later on down the road. Too often I see people saying like, "My computer was stable before, but now I'm having all these problems. I don't get it. Do I need to RMA something?" Every time I ask how long they've tested, they say that they only tested for a short time and thought it was good enough. Every time I convinced these people to test longer and reconfigure their settings so that they can pass a proper test of their system's stability, all of their problems go away.

 

Anyway, yeah, getting back to what you were saying about Internal PLL Overvoltage: yep, that's what it's for! :) When you can't get Windows to boot no matter what you do when you're overclocking, enabling Internal PLL Overvoltage is usually needed.

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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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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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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 #82 of 102
Thread Starter 
i don't really understand, what u mean this "
you want to get through all of the FFTs that Prime95 has, and I think it has 82. At the default of 3 minutes per FFT with an added pause or break in between each one, this can take 6-8 hours depending on your system"

so if i have to do custom primetest how u want me to put values?i hope u don't mind question as me being novice.
post #83 of 102
Thread Starter 
and just another quick question as i mentioned that hyper 212 fan is stuttering now so i was wondering which 120mm noctua fan u would recommend?
there are so many options

http://noctua.at/en/products/fan



http://noctua.at/en/products/fan/nf-f12-pwm
this or this
http://noctua.at/en/products/product-line-industrial/nf-f12-industrialppc-2000-pwm
Edited by iam1simpleguy - 8/5/16 at 1:24pm
post #84 of 102
Wow...reading through this thread. Interesting. I know I went from a P67 board to Z77 and I dropped from something like 1.362V @ 4.5Ghz to 1.302V... So right now my 2500k is stable @ 1.302V @ 4.5Ghz. Pretty nice. Only needs like 1.242 or something like that for 4.3Ghz... Hopefully there will be some members willing to take my chip soon. I plan on selling it in oh..a month or so. It's served me well but onto bigger and better!
post #85 of 102
Quote:
Originally Posted by iam1simpleguy View Post

i don't really understand, what u mean this "
you want to get through all of the FFTs that Prime95 has, and I think it has 82. At the default of 3 minutes per FFT with an added pause or break in between each one, this can take 6-8 hours depending on your system"

so if i have to do custom primetest how u want me to put values?i hope u don't mind question as me being novice.

 

I am not saying to do custom. Prime95 has 82 different FFTs the last time I checked. Each one is very different on the CPU. So, it's best to go through all of them. The last time I checked, Prime95's default for the Blend test is 3 minutes per FFT. At 3 minutes per FFT, it should take 6-8 hours to complete the test.

 

However, since you brought up the Custom test, I will tell you that it is a superior way to test your system's stability with the CPU overclocked. You just select Blend if it's not already selected, and then Custom after that. Then, where you see the field for 'Memory to use', you should enter about 80-85% of your installed memory and try to get the test to run problem-free for 6-8 hours.

 

Quote:
Originally Posted by iam1simpleguy View Post

and just another quick question as i mentioned that hyper 212 fan is stuttering now so i was wondering which 120mm noctua fan u would recommend?
there are so many options

http://noctua.at/en/products/fan



http://noctua.at/en/products/fan/nf-f12-pwm
this or this
http://noctua.at/en/products/product-line-industrial/nf-f12-industrialppc-2000-pwm

 

I don't know fans.

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 
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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 
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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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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 #86 of 102
Thread Starter 
ok thx again

i hope to do torture test later.
post #87 of 102
Thread Starter 
hello guys..
its been more then 2 weeks now and finally i manage to do custom test with prime95 for 9hrs.i believe i can safely say now its stable 4.5ghz.
though with 1.355volts i got bsod so i now with 1.365 its seems stable.
here's SS.
for custom settings i used Minfft 8,max 4096
run in fft in place enabled and time to run each fft 15 minutes.
Maz Temp was 76c..so i guess its Fine..




and once again thx for all your help.cap.gif
Edited by iam1simpleguy - 8/27/16 at 5:56am
post #88 of 102

No, not In Place, you want Blend, just as we recommended. Select Blend, and then Custom like I taught you before. In-place is not hard enough on the CPU.

 

We never said anything about doing the In-place test. I know it says that it is supposed to create the most heat, but we have found that Blend > Custom is the best.


Edited by TwoCables - 8/27/16 at 6:14am
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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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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 #89 of 102
Quote:
Originally Posted by iam1simpleguy View Post

hello guys..
its been more then 2 weeks now and finally i manage to do custom test with prime95 for 9hrs.i believe i can safely say now its stable 4.5ghz.
though with 1.355volts i got bsod so i now with 1.365 its seems stable.
here's SS.
for custom settings i used Minfft 8,max 4096
run in fft in place enabled and time to run each fft 15 minutes.
Maz Temp was 76c..so i guess its Fine..




and once again thx for all your help.cap.gif

That's exactly the voltage I recommended from the beginning of this thread. Still, get a better cooler!
post #90 of 102

Yeah, and I recommended 1.35V a total of 4 times.

 

http://www.overclock.net/newsearch/?search=1.35&resultSortingPreference=recency&byuser=TwoCables&output=posts&sdate=0&newer=1&type=all&containingthread[0]=1605394&advanced=1

 

You recommended not exceeding 1.365V on air, but I'm on air with 1.424V and it's perfectly fine.

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... 
  hide details  
Reply
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