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Confusing problem w/ 3570K Watercool overclock

post #1 of 2
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I don't understand how everyone gets 1.25v 4.2ghz, or 4.5ghz with 1.3v. No matter what settings, different voltage settings my CPU won't boot with 1.3v running 4500Mhz. I can confirm this on two motherboards with the same CPU.

[Before discovering 4.4ghz overclock, I delidded my cpu which give me some extra room to hit that 1Ghz)

Gigabyte Z77X-U5DH: Originally got this motherboard when I first bought everything (including Cooler Master Hyper 212 Plus Direct Touch 4). CPU wouldn't boot 4.4Ghz unless it ran 1.35v, yes this includes changing "auto" values in the bios to correct "stock" settings. Power options were set on High (vdroop was minimal)

Asus P6Z77-V: Installed this motherboard today and exact same thing. It won't boot unless 4.4Ghz has around 1.35v w/ LLC High (or higher). However this time I'm overclocking with watercooling temps

4.5Ghz = 1.4v (high power options)
4.6Ghz = 1.43v
4.8Ghz = 1.47v

These are only bootable options, not stable. My confusion is can I push my voltages up really high (aka 4.8Ghz 1.47v ++) because my watercooling temp does give me good results (1.432v @ 4.6ghz = 57c) or do I risk hurting my cpu life?


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i5 4690K (Delidded) MSI Z97 MPOWER AC MAX EVGA 980 Ti Hybrid  Powercolor X1950 XTX GDDR4 
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CMY16GX3M2A2400C11R CMY16GX3M2A2400C11R A-DATA Cheapo SSD 2x ST2000DM001-1ER164 
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Gaming PC
(17 items)
 
FREE PC RIG
(9 items)
 
 
CPUMotherboardGraphicsGraphics
i5 4690K (Delidded) MSI Z97 MPOWER AC MAX EVGA 980 Ti Hybrid  Powercolor X1950 XTX GDDR4 
RAMRAMHard DriveHard Drive
CMY16GX3M2A2400C11R CMY16GX3M2A2400C11R A-DATA Cheapo SSD 2x ST2000DM001-1ER164 
Hard DriveCoolingOSMonitor
ASMedia® ASM1061 (External) Swifttech H320 Stripped Win 10 x64 15063 *M* SAMSUNG LS24F350 
MonitorPowerCaseMouse
*S* LG 22MP48HQ Corsair RM850w Corsair Obsidian 750D Corsair Harpoon RGB 
Audio
Fiio E7 
CPUMotherboardGraphicsRAM
Intel i7 3770 Dell KRC95 0KRC95 ATi X1950XTX  2x 4086MB DDR3 1600Mhz 
CoolingOSMonitorPower
Stock Windows 7 SP1 X64 Dell 2209WA 250w unknown 
Case
OPEN 
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Reply
post #2 of 2
Make sure you turn off all power options like Cstate and stuff like that.
It could be you were just unlucky on the silicon lottery, my 3570k does 4.7GHz at about 1.4v, but for 4.8GHz I hit a wall and need sort of 1.46v, it's luck of the draw partly if your cpu is a good overclocker or not.
If you haven't already seen this, follow this guide, I know it says ASrock edtition but it can be applied to any mobo smile.gif
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Intel i5 3570k 4.5GHz @1.272v MSI Z77A-GD55 EVGA GTX780Ti ACX 8GB Corsair Vengance LP 
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64GB Crucial M4 x2 RAID0 500GB Seagate Barracuda 2TB Samsung Spinpoint EK Supremacy Plexi CSQ CPU Block 
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EK FC-670GTX Plexi CSQ GPU Block x2 EK XT240 EK X3 250 Res Laing D5 Vario 
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STORMTIDE
(23 items)
 
   
CPUMotherboardGraphicsRAM
Intel i5 3570k 4.5GHz @1.272v MSI Z77A-GD55 EVGA GTX780Ti ACX 8GB Corsair Vengance LP 
Hard DriveHard DriveHard DriveCooling
64GB Crucial M4 x2 RAID0 500GB Seagate Barracuda 2TB Samsung Spinpoint EK Supremacy Plexi CSQ CPU Block 
CoolingCoolingCoolingCooling
EK FC-670GTX Plexi CSQ GPU Block x2 EK XT240 EK X3 250 Res Laing D5 Vario 
CoolingOSMonitorKeyboard
EK D5 Pump Top Plexi Windows 7 Ultimate 64bit 24" BenQ XL2420T CM Quickfire TK MX Browns 
PowerCaseMouseMouse Pad
Seasonic G Series 600W CM storm trooper Saitek R.A.T 5 Razer Goliathus Control Edition 
AudioAudioOther
Beyerdynamic DT990 Pro Schiit Modi/Magni Razer Naga Molten Edition 
CPUGraphicsRAMHard Drive
i5 3317U 640M 4GB DDR3 128gb crucial m4 
OSMouse
Windows 8 Pro 64bit Razer Naga Molten 
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