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Strange OC issues on i5 2500k, need help.

post #1 of 4
Thread Starter 
Alright, i recently got myself a i5-2500k along with a asrock extreme3 gen3. I wanted to OC so i bought a H100 to go with my Azza Hurrican 2000 so cooling is not an issue.

I started to OC, it was my second the first one was a mild one with the AMD Phenom II x4 955, i brought it to 3.8Ghz on stock cooler.

My first step was to test out 4Ghz. I had no problem reaching it, cool temp and low voltage, voltage around 1.260. I was pleased so i pushed to 4.4Ghz. It was great, no issues, ran prime95 for around 2 hours, got max between 55-60 and my voltage was around 1.270-1.310. So obviously i saw that there was more room so i tried to proceed.

Then the errors started.
Voltage is set to Auto since it stayed decently low, i prefered to keep it like that.
I then tried to set the multiplier to 46.
The machine booted up, almost reached windows but then BSOD with a bad pool error.
Restarted, thinking it was an isolated issue. Ran a chkdsk... ran into another BSOD saying that there was hardware issue. I figured it was related to back pool error.
I also tried 47 and 48. Ran into a bdos right away, right after motherboard boot. voltage was manually set to 1.420.

I am wondering if it is not a motherboard problem instead of a CPU issue. Since usually the i5-2500k can reach 4.6 no problem.

I reverted back to the 4.4Ghz, it loaded without any BDOS and i am not getting the bad pool error.
It is also running cool.

Thanks.
Blue Aura
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel Sandy Bridge i5 2500k @ 4.4 Asrock Extreme3 Gen3 ASUS GTX 670 DirectCU II 2GB 16GB (4x Corsair 1333 4GB DDR3) 
Hard DriveHard DriveHard DriveOptical Drive
WD Caviar Green 1TB 64MB/SATA-3G (x2) in RAID0 Samsung HD502HI OCZ Vortex 4 256GB HP BD340I 12X Blu-Ray Disc Writer 
CoolingOSMonitorMonitor
Corsair Hydro H100 Windows 7 Ultimate SP1 Yamakasi Catleap Q720 SE 27" 2560x1440 Gateway LP2407 24" 1920x1200 
MonitorMonitorMonitorKeyboard
(x2) Asus VH196T 19" 1440x900 Samsung SyncMaster731B 17" Acer AL1916W 1440x900 19" Razer Lycosa ME 
PowerCaseMouseMouse Pad
Ultra U12-40873 LSX 650-Watt Power Supply Azza Hurricane 2000 Razer Mamba Razer Megasoma 
AudioAudioOtherOther
Audio-Technika ATH-M50 Asus Xonar DX Razer Onza PC Xbox Paddle Microsoft Lifecam Studio (2x) 
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Blue Aura
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel Sandy Bridge i5 2500k @ 4.4 Asrock Extreme3 Gen3 ASUS GTX 670 DirectCU II 2GB 16GB (4x Corsair 1333 4GB DDR3) 
Hard DriveHard DriveHard DriveOptical Drive
WD Caviar Green 1TB 64MB/SATA-3G (x2) in RAID0 Samsung HD502HI OCZ Vortex 4 256GB HP BD340I 12X Blu-Ray Disc Writer 
CoolingOSMonitorMonitor
Corsair Hydro H100 Windows 7 Ultimate SP1 Yamakasi Catleap Q720 SE 27" 2560x1440 Gateway LP2407 24" 1920x1200 
MonitorMonitorMonitorKeyboard
(x2) Asus VH196T 19" 1440x900 Samsung SyncMaster731B 17" Acer AL1916W 1440x900 19" Razer Lycosa ME 
PowerCaseMouseMouse Pad
Ultra U12-40873 LSX 650-Watt Power Supply Azza Hurricane 2000 Razer Mamba Razer Megasoma 
AudioAudioOtherOther
Audio-Technika ATH-M50 Asus Xonar DX Razer Onza PC Xbox Paddle Microsoft Lifecam Studio (2x) 
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post #2 of 4
I would not use the auto voltage setting. Make sure pll overvolt is on as its sometimes needed for 4.5ghz. Make sure your CPU power saving features are disabled also.
My current rig
(8 items)
 
   
CPUMotherboardGraphicsRAM
Intel g3258 Gigabyte Z97mx Gaming 5 Powercolor 7950 PCS+ Boost PNY DDR3 8gb  
CoolingMonitorPowerCase
Coolermaster N520  Acer H236HL Bid XFX 550w Apex TM-163 
CPUMotherboardGraphicsRAM
i5 2500k 4.5ghz @ 1.30 Gigabyte P67-UD4-B3 eVGA 580 GTX 8GB Ripjaws X 1600 8-8-8-24 
Hard DriveHard DriveOSMonitor
Maxtor Diamondmax 10 250gb Samsung 840 Pro 256gb Windows 7 64 bit Professional Samsung 27" S27A350H LED Monitor 
KeyboardPowerCaseMouse
Logitech G15 v2 Corsair HX-850 HAF 932 Advanced Logitech G5 
Mouse PadAudio
Razor Gaming Creative Sound Blaster Z 
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My current rig
(8 items)
 
   
CPUMotherboardGraphicsRAM
Intel g3258 Gigabyte Z97mx Gaming 5 Powercolor 7950 PCS+ Boost PNY DDR3 8gb  
CoolingMonitorPowerCase
Coolermaster N520  Acer H236HL Bid XFX 550w Apex TM-163 
CPUMotherboardGraphicsRAM
i5 2500k 4.5ghz @ 1.30 Gigabyte P67-UD4-B3 eVGA 580 GTX 8GB Ripjaws X 1600 8-8-8-24 
Hard DriveHard DriveOSMonitor
Maxtor Diamondmax 10 250gb Samsung 840 Pro 256gb Windows 7 64 bit Professional Samsung 27" S27A350H LED Monitor 
KeyboardPowerCaseMouse
Logitech G15 v2 Corsair HX-850 HAF 932 Advanced Logitech G5 
Mouse PadAudio
Razor Gaming Creative Sound Blaster Z 
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post #3 of 4
Leaving things on auto usually leads to problems in my experience.
post #4 of 4
Looks like you might just have a chip that's really bad for OC'ing. I have a 2500k that can run at 4.8 ghz at 1.38 v core, I get max temps of 68c with my completely stock Corsair Hydro H60. Looks like OC'ing might just be bad on your particular chip.
- chmodlabs
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