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Hitting the voltage "wall" overclocking ivy bridge

post #1 of 4
Thread Starter 
Hi Guys,

CPU: i5-3570k (delidded) w/ NH-D14

I have run it on 4,4GHz for a about a year or so now. Offset -0.015 (~1.25ish volts) and it has been fine. It's around 1.225v on stock so there wasn't allot extra voltage needed to get it to 4.4GHz.
To get it stable on 4.5GHz, I need as much as 1.3v. In other words almost 0.05 volts more. Is there any else that have encountered the same for only 1 bump on the multiplier?

Also I'm wondering;

How much will i.e. 4.4GHz vs 4.6GHz vs 4.8GHz have to say in min/avg/max fps? Is it worth trying to squeeze out the extra couple of mhz?
Heat is not an issue, stress tested it at 4.6GHz 1.36v max temp 80C.
post #2 of 4
my i7 3770k requires a similar bump going from 4.6 to 4.7GHz. i believe it's quite normal, just depends on your chip smile.gif
Current Rig 2013
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Current Rig 2013
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k @ 4.6GHz Asus Maximus V Extreme Gigabyte GTX 970 G1 Gaming Samsung Wonder Ram 2x4GB @ 2400MHz CL10 
Hard DriveHard DriveHard DriveCooling
Samsung HD103SJ / 1TB 7200RPM OCZ Vertex 3 90GB Samsung 840 Pro Series 256GB Cooler Master TPC 812 Push/Pull 
OSMonitorMonitorKeyboard
Windows 8 Professional Samsung Syncmaster 27" SA550H -2ms Response Time- ASUS VG248QE 144hz 1ms Razer BlackWidow 
PowerCaseMouseMouse Pad
Corsair CX600M 80+ Bronze Certified Zalman Z9 Roccat Kone XTD Steel Series QCK Mass 
Audio
Focusrite Forte 
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post #3 of 4
Thread Starter 
Thanks for your reply mr1hm smile.gif

Did you settle for 4.6GHz then? I'm not really sure if giving the chip 0.1 voltage more for 200Mhz is worth it?

Although BF4 multiplayer is certainly going to be cpu hungry.
post #4 of 4
np smile.gif

yes, as of right now, i'm @ 4.6GHz with about 1.232v under heavy load but, i did have it @ 4.7 when I was using windows 7; windows 8 for some reason wanted slightly extra voltage so i decided to stick with 4.6.

whether it's worth it or not is up to you but, if it were me i'd try an play it safe and set a goal on stabilizing/finalizing a 4.5GHz overclock with about 1.3v (less would be better).

for me, i dont like seeing my core temps above 70C-72C at any time i'm using the PC for daily use (so games, my work, and etc). i think it's ok to hit much higher in stress tests but, not long ones. i also try an keep CPU voltage under 1.3v.

IMO, i may be a bit too conservative but, degradation is something we all want to keep away biggrin.gif
Current Rig 2013
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k @ 4.6GHz Asus Maximus V Extreme Gigabyte GTX 970 G1 Gaming Samsung Wonder Ram 2x4GB @ 2400MHz CL10 
Hard DriveHard DriveHard DriveCooling
Samsung HD103SJ / 1TB 7200RPM OCZ Vertex 3 90GB Samsung 840 Pro Series 256GB Cooler Master TPC 812 Push/Pull 
OSMonitorMonitorKeyboard
Windows 8 Professional Samsung Syncmaster 27" SA550H -2ms Response Time- ASUS VG248QE 144hz 1ms Razer BlackWidow 
PowerCaseMouseMouse Pad
Corsair CX600M 80+ Bronze Certified Zalman Z9 Roccat Kone XTD Steel Series QCK Mass 
Audio
Focusrite Forte 
  hide details  
Reply
Current Rig 2013
(17 items)
 
  
CPUMotherboardGraphicsRAM
Intel i7 3770k @ 4.6GHz Asus Maximus V Extreme Gigabyte GTX 970 G1 Gaming Samsung Wonder Ram 2x4GB @ 2400MHz CL10 
Hard DriveHard DriveHard DriveCooling
Samsung HD103SJ / 1TB 7200RPM OCZ Vertex 3 90GB Samsung 840 Pro Series 256GB Cooler Master TPC 812 Push/Pull 
OSMonitorMonitorKeyboard
Windows 8 Professional Samsung Syncmaster 27" SA550H -2ms Response Time- ASUS VG248QE 144hz 1ms Razer BlackWidow 
PowerCaseMouseMouse Pad
Corsair CX600M 80+ Bronze Certified Zalman Z9 Roccat Kone XTD Steel Series QCK Mass 
Audio
Focusrite Forte 
  hide details  
Reply
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