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2500k Overclock Question

post #1 of 10
Thread Starter 
I'm getting 4.7ghz@1.34-1.35V and 73-79C while running IBT. I'm under the assumption that these temps are normal for IBT stress testing. My problem is that I can clear 25 runs on standard no problem, but I get instant BSOD (kernel inpage error) on maximum right after hitting start. Is my overclock stable or unstable?

Edit: Dropped my vcore a bit and I'm getting 4.7ghz@1.33-1.34V and 71-77C now. Still passing 25 runs on standard and instant BSOD on maximum.
Edited by Alkajak - 4/8/14 at 9:02pm
post #2 of 10

Unstable.

 

What are the rest of your specs?

 

So, what motherboard do you have?

 

What CPU cooling do you have?

 

What memory do you have? Make and model.

 

What power supply do you have? Make and model.

 

What video card(s) do you have?

 

What case do you have?

 

The last 2 questions pertain to temperatures.

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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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It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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post #3 of 10
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

Unstable.

What are the rest of your specs?

So, what motherboard do you have?

What CPU cooling do you have?

What memory do you have? Make and model.

What power supply do you have? Make and model.

What video card(s) do you have?

What case do you have?

The last 2 questions pertain to temperatures.

P8P67 Deluxe
Hyper 212 Evo
G.Skill Ripjaws X 4GB x 2 (DDR3 2133 / PC3 17000)
Corsair TX650
Sapphire 7870XT w/ Boost
HAF 922
post #4 of 10
Thread Starter 
I seem to be getting a stable run on Maximum with 4.5ghz@1.38V in BIOS (actually running around 1.33-1.34V in CPU-Z) and 73-79C. I guess I was just pushing it too far with a Hyper 212 Evo. No BSOD yet.
post #5 of 10
If it's only blue screened on you with the max memory setting, maybe your RAM actually has a very subtle instability. The scenario described is quite identical to what I've had happen when playing with APUs. Turned out to be the memory, and errors on that didn't show until the RAM test had been running for a while.

BTW - I'm pretty sure you're not supposed to exceed 20 passes at a time with IBT. Just a precaution.
Quantum
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Quantum
(16 items)
 
First Knight
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MiniMicro
(16 items)
 
CPUMotherboardGraphicsGraphics
A8-3870K @ 3.5Ghz Gigabyte GA-A75-UD4H Radeon HD 6550D Radeon HD 6670 (GDDR5) 
RAMHard DriveOptical DriveCooling
Trident X DDR3 2400 Mushkin Cronos Deluxe Asus Black DVD-RW Xigmatek Gaia (XAF) 
CoolingOSMonitorPower
G.Skill Turbulence II Windows 7 x64 32" LCD TV Rosewill HIVE 550W 
Case
Lian Li PC-K65 
CPUMotherboardGraphicsRAM
a4-3400 GAA75M-DS2 Radeon HD 6410D Samsung 30nm 
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OCZ Agility 2 WD Caviar Green DVD-R/W Cooler Master Vortex Plus 
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2x SilenX 60mm Ixtrema SilenX 80mm Red LED Effizio SilenX 80mm Ixtrema Rosewill 90mm PCI slot fan 
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post #6 of 10
Quote:
Originally Posted by Alkajak View Post


P8P67 Deluxe
Hyper 212 Evo
G.Skill Ripjaws X 4GB x 2 (DDR3 2133 / PC3 17000)
Corsair TX650
Sapphire 7870XT w/ Boost
HAF 922

 

Oh good. Thank you.

 

Quote:
Originally Posted by Alkajak View Post

I seem to be getting a stable run on Maximum with 4.5ghz@1.38V in BIOS (actually running around 1.33-1.34V in CPU-Z) and 73-79C. I guess I was just pushing it too far with a Hyper 212 Evo. No BSOD yet.

 

Just report what you see in CPU-Z. ;) It's less confusing.

 

So, are you seeing 1.336 to 1.344V?

 

Quote:
Originally Posted by Rezard View Post

If it's only blue screened on you with the max memory setting, maybe your RAM actually has a very subtle instability. The scenario described is quite identical to what I've had happen when playing with APUs. Turned out to be the memory, and errors on that didn't show until the RAM test had been running for a while.

BTW - I'm pretty sure you're not supposed to exceed 20 passes at a time with IBT. Just a precaution.

 

No, LinX is IBT with a different user interface and it recommends 50-100 runs. So, IBT is no different.

 

Instability in Linpack with this CPU can also be just the CPU because it has an IMC.

It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
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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!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #7 of 10
Thread Starter 
Got BSOD again with 4.6ghz. Lowered vcore again, passing maximum with 4.5ghz@1.312-1.344V and 72-77C. Seems 4.5ghz is my limit with this air cooler. Would lowering my vcore in BIOS help my temps even though they aren't running close to the 1.38V I've set it to?
post #8 of 10
Quote:
Originally Posted by Alkajak View Post

Got BSOD again with 4.6ghz. Lowered vcore again, passing maximum with 4.5ghz@1.312-1.344V and 72-77C. Seems 4.5ghz is my limit with this air cooler. Would lowering my vcore in BIOS help my temps even though they aren't running close to the 1.38V I've set it to?

 

The voltage in the BIOS and your actual voltage don't really relate to each other like that.

 

Anyway, lowering the voltage always results in lower temps, however, you will likely also have to lower the clock speed. However, you are going by the temps in IBT. Don't do that. ;) Go by the temps in Prime95's Custom Blend test. Select Custom while the Blend test is selected. Then, type in about 80-85% of your memory where you see "1600". Then, start the test. The goal is 24 hours, and you will have much better temps than IBT and therefore, it's a safer test for this CPU.

It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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Reply
post #9 of 10
Thread Starter 
Quote:
Originally Posted by TwoCables View Post

The voltage in the BIOS and your actual voltage don't really relate to each other like that.

Anyway, lowering the voltage always results in lower temps, however, you will likely also have to lower the clock speed. However, you are going by the temps in IBT. Don't do that. wink.gif Go by the temps in Prime95's Custom Blend test. Select Custom while the Blend test is selected. Then, type in about 80-85% of your memory where you see "1600". Then, start the test. The goal is 24 hours, and you will have much better temps than IBT and therefore, it's a safer test for this CPU.

In that case, if the temps are acceptable, what is the highest voltage I should be going for an overlock? Is 1.4V overkill?
post #10 of 10
Quote:
Originally Posted by Alkajak View Post


In that case, if the temps are acceptable, what is the highest voltage I should be going for an overlock? Is 1.4V overkill?

 

It's overkill up until approximately 4.8+ GHz. Again though, don't go by what you set in the BIOS; go by what you see in CPU-Z under full load. I mean, you're not 0.020V away from 1.4V. You're 0.056V away from it (with a voltage of 1.344V).

It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
It's a computer!
(19 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 DriveOptical Drive
250 GB Samsung 840 EVO (C:\) 250 GB Samsung 840 EVO (D:\) 150 GB WD VelociRaptor Samsung SH-S243N 24x DVD Burner 
Optical DriveCoolingOSMonitor
Samsung SH-S203N 20X DVD Burner Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) 
KeyboardPowerCaseMouse
Filco Majestouch 104-key Cherry MX Blues w/NKRO Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate 
Mouse PadAudioAudio
Basic, but premium round X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
  hide details  
Reply
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