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After OC, power seems to be unstable. Need help

post #1 of 16
Thread Starter 
My Specs:
Intel i5 2500k @ 3.3ghz
Corsair Vengeance 4gb 1600
Asus Maximus IV Gene-Z
CoolerMaster V6 GT hsf
Palit 8800GT 512mb
Corsair HX520W - (from my old rig 4 years old)

This rig is fresh, I just built it last weekend. Last night I tried OCing it via Asus Auto Tuning and it successfully OCed to 4.3ghz (31% up) without any trouble. I even restarted it last night a few times just to see if everything goes well. But this morning when I turned my pc on it will run for a few seconds without showing anything on the screen, then it turns off and on again on its on, then I will get an overclock failure message press F1. I went to the BIOS and the OC config is still there, I didnt change anything and just went on loading Windows 7. When on windows, everything is normal, the volts are fine +12V is reading 12.000 V, +5V is reading 5.000 V, +3.3V is reading 3.344 V. I didnt get any warnings from Asus tools.

So basically, from a cold boot, system seems to be unstable. Things will only work after a few self restart on booting and this bothers me because I dont want to wear and tear my pc. I want it to run smoothly from booting to Windows running even on OC.

Thanks a million guys for any help I could get!
Edited by digitaljepoy - 7/28/11 at 9:22pm
post #2 of 16
I have no experience with "Asus Auto Tuning". In my opinion, it is infinitely better to OC manually, bit by bit. You didn't mention your GPU, do you have one? Back to the problem at hand, though. You should return everything to stock & adjust the CPU multiplier & voltage manually. I think you can probably hit 4.2 ghz with stock voltage, just change the multiplier to 42. Again, I'm not sure as my 2500k is still in the box, I haven't built my new rig yet. I think all new ASUS mobos use the new "UEFI" BIOS, & again, i have no experience there.
 
[3IR] STG
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CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
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[3IR] STG
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
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post #3 of 16
Thread Starter 
Quote:
Originally Posted by N7-OC;14387420 
I have no experience with "Asus Auto Tuning". In my opinion, it is infinitely better to OC manually, bit by bit. You didn't mention your GPU, do you have one? Back to the problem at hand, though. You should return everything to stock & adjust the CPU multiplier & voltage manually. I think you can probably hit 4.2 ghz with stock voltage, just change the multiplier to 42. Again, I'm not sure as my 2500k is still in the box, I haven't built my new rig yet. I think all new ASUS mobos use the new "UEFI" BIOS, & again, i have no experience there.

I would love to do it manually, but i dont really have that much experience OCing. Last time I successfully tried OCing was with my old P3 Slot 1 CPU with all the jumpers. Anyway, I returned everything to default via BIOS. Its now back to 3.3ghz but the mobo can run it to 3.7ghz when its needed, withou me doing anything.

So you think my power supply is still good? I dont understand why It would run smoothly after the rough bootup, if the power wasnt sufficient when it was on the process of OCing, it could have failed or at least have a different OC result if it wasnt stable enough at 4.3ghz.
post #4 of 16
Only manual overclock. The auto tune feature is really poor since it's not always stable and definitely pumps way too much voltage, more than needed, causing additional heat.

Basically, raise the multiplier slowly. Go from 3.3 to 3.4 to 3.5, etc, etc. Every time you bump it up, run your desired stress test for about 5-10 minutes. Keep going until it BSODs. Once it BSODs, start bumping up the VCC (core voltage) until it stops. Once it has stopped, continue doing what you previously did until you find your next point in which you have to raise the voltage again.
post #5 of 16
Don't use the Auto OC feature... did you check the OC settings that it set for you? Did it max out the short and long term power limits? That could be a culprit of it not getting far at all.

For what its worth I have i5-2500k and I basically went from stock settings straight to 4.5 Ghz and didn't touch anything except for a few things. It's really easy to get around 4+, here's what I did:

Spread spectrum: disabled
Power limits: 255 for both
Current limit: 255
Power save: disabled (there is a specific setting for this, it should be disabled by default)
CPU PLL: lower to 1.75
LLC: did not change this, left on setting 5 (the highest)

And Vcore (Offset) +.010v for stability (this is what *I* needed, your chip will vary, don't expect the same results). This led to a load voltage in CPU-Z of ~1.296v. At first I had it +.005v and got an idle BSOD, so I bumped it up a notch. I have yet to test it 110% but thus far it looks good... passed OCCT, IBT Linpack, short Prime95 runs and 2-3 hours of gaming (non continuous).

To do it in a weird way to see what happens I actually undervolted and overclocked to 4.0 first. Then I did the usual process, and ended up at 4.5 Ghz with basically just a touch more than stock voltage.
Edited by donkrx - 7/28/11 at 9:36pm
    
CPUMotherboardGraphicsRAM
i5-2500K [24/7: 4.9ghz 1.47v] ASRock P67 Extreme 4 (B3) EVGA Geforce 570 [890/2200 1.1v] G.Skill Ripjaws 2x4GB 1600Mhz 
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WD Caviar Black 1TB HP f2105 1680x1050 Corsair TX750 V2 (backup Antec BP550W) Antec 902 
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CPUMotherboardGraphicsRAM
i5-2500K [24/7: 4.9ghz 1.47v] ASRock P67 Extreme 4 (B3) EVGA Geforce 570 [890/2200 1.1v] G.Skill Ripjaws 2x4GB 1600Mhz 
Hard DriveMonitorPowerCase
WD Caviar Black 1TB HP f2105 1680x1050 Corsair TX750 V2 (backup Antec BP550W) Antec 902 
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Logitech G500 
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post #6 of 16
Thread Starter 
Quote:
Originally Posted by E-Peen;14387563 
Only manual overclock. The auto tune feature is really poor since it's not always stable and definitely pumps way too much voltage, more than needed, causing additional heat.

Basically, raise the multiplier slowly. Go from 3.3 to 3.4 to 3.5, etc, etc. Every time you bump it up, run your desired stress test for about 5-10 minutes. Keep going until it BSODs. Once it BSODs, start bumping up the VCC (core voltage) until it stops. Once it has stopped, continue doing what you previously did until you find your next point in which you have to raise the voltage again.

Thanks! Ill research more on how to OC manually. But you think my power supply unit is still good?
post #7 of 16
Your PSU should be fine, especially since the volts reported on the rails are within normal range. The system restarting itself a few times after a cold boot is concerning, though. You said that after the restarts, when overclocked your PC runs fine? Oh, and it doesn't restart by itself with everything on stock, does it?
 
[3IR] STG
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
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Reply
 
[3IR] STG
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
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post #8 of 16
As said above, most, if not all of those OC'ing programs may get the job done, but not done right. The more settings you can set manually in the bios, the better. Even the bios auto settings tend to set power/voltage levels higher than needed.
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post #9 of 16
Thread Starter 
Quote:
Originally Posted by donkrx;14387578 
Don't use the Auto OC feature... did you check the OC settings that it set for you? Did it max out the short and long term power limits? That could be a culprit of it not getting far at all.

For what its worth I have i5-2500k and I basically went from stock settings straight to 4.5 Ghz and didn't touch anything except for a few things. It's really easy to get around 4+, here's what I did:

Spread spectrum: disabled
Power limits: 255 for both
Current limit: 255
Power save: disabled (there is a specific setting for this, it should be disabled by default)
CPU PLL: lower to 1.75
LLC: did not change this, left on setting 5 (the highest)

And Vcore (Offset) +.010v for stability (this is what *I* needed, your chip will vary, don't expect the same results). This led to a load voltage in CPU-Z of ~1.296v. At first I had it +.005v and got an idle BSOD, so I bumped it up a notch. I have yet to test it 110% but thus far it looks good... passed OCCT, IBT Linpack, short Prime95 runs and 2-3 hours of gaming (non continuous).

To do it in a weird way to see what happens I actually undervolted and overclocked to 4.0 first. Then I did the usual process, and ended up at 4.5 Ghz with basically just a touch more than stock voltage.


Thank you! When I OCed it to 4.3ghz, it was running the whole day yesterday with no problem at all, at idle it runs at 1.6ghz, when I play Crysis 2, it runs at 4.3ghz, everything was fine once it loads to windows. Its really just on boot up, it has to reset on its own a few times and after that it will load to Windows. Its like its trying to stabalize something first before loading windows.
post #10 of 16
Honestly, I think it's the mobo/bios is at fault here. The PSU should be solid. After googling around, you are right in believing that it is either a dying mobo or a bad PSU. Your computer is restarting itself because it detects a fault with the BIOS settings & is tryign to correct it. I think F1 loads stock settings. You could do re-do the overclock with Asus Auto Tuning & check it to be sure. Also, your power options in the BIOS might be off.

EDIT: Is quick boot or some crap enabled on your BIOS? If so, turn it off. Oh, & you are plugged into a surge protector right?
Edited by N7-OC - 7/28/11 at 9:48pm
 
[3IR] STG
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
  hide details  
Reply
 
[3IR] STG
(9 items)
 
 
CPUMotherboardGraphicsRAM
i5-2500K [4.5 GHz, 1.35 V) MSI P67A-GD55 EVGA GTX 570 [2x4 GB] G.Skill Ripjaws X DDR3 1600 
Hard DriveOptical DriveCoolingOS
SAMSUNG Spinpoint F3 1TB 7200 RPM ASUS DRW-24B1ST CD/DVD Burner Xigmatek SD1283 Gaia Windows 7 Home Premium 64 
MonitorKeyboardPowerCase
Samsung P2370HD Microsoft Sidewinder X4 PC Power & Cooling 750W Silencer Quad NZXT Phantom [White] 
MouseMouse PadAudio
Cooler Master Storm Spawn Steelseries QcK+ Klipsch Promedia 2.1's 
CPUGraphicsRAMHard Drive
i5-2430m [2.4 GHz] GT 540M [1GB DDR3 VRAM] 4GB [2x2GB] DDR3-1033 500GB, 5400RPM 
Optical DriveOSMonitor
8X DVD-Super Multi Double-Layer Drive Windows 7 Home Premium 64 Bit 15.6" [1366x768] 
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