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Double boot after OC

post #1 of 2
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After increasing my OC up to 4ghz my computer is turns on and off before turning on successfully. It's been otherwise stable both during regular use and stress tests. I've seen that behavior before the first time after a BIOS change but not regularly. I have all the bootup and eventual vcores equal, is it actually better to have a lower bootup vcore?
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CPUMotherboardGraphicsRAM
i5-750 @ 4.0GHz eVGA P55 SLI 2 x GTX 570 Classified 900/1800/2000 2 x 4GB G.Skill Ripjaws X Series 1600MHz 
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Antec HCG 750W Antec P183 
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Gaming
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CPUMotherboardGraphicsRAM
i5-750 @ 4.0GHz eVGA P55 SLI 2 x GTX 570 Classified 900/1800/2000 2 x 4GB G.Skill Ripjaws X Series 1600MHz 
PowerCase
Antec HCG 750W Antec P183 
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post #2 of 2
Quote:
Originally Posted by Jarobata View Post
After increasing my OC up to 4ghz my computer is turns on and off before turning on successfully. It's been otherwise stable both during regular use and stress tests. I've seen that behavior before the first time after a BIOS change but not regularly. I have all the bootup and eventual vcores equal, is it actually better to have a lower bootup vcore?
That's normal for an EVGA P55 board. I had the P55 FTW 200 version, which also does that when overclocked with a bclk of 200 or more. If you set it less than 200, it stops the double-boot.

Edit:
Here's a thread explaining it at EVGA:
http://www.evga.com/forums/tm.aspx?h...mpage=1#195540
Edited by DerComissar - 11/1/11 at 5:56pm
    
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CPUMotherboardGraphicsRAM
i7 5775C Broadwell ASUS Maximus VII Hero Nvidia Titan Xp GSkill Ripjaws X 16GB DDR3 2133 
Hard DriveCoolingCoolingCooling
Samsung 850 EVO 500GB  Mayhems Havoc 240 and 360 Rads Dual Laing D5T Strong Pumps Dual Koolance CRT-SPD1224M 24 Volt Pump Control... 
CoolingCoolingCoolingCooling
Dual Darkside D5 Pump Black Dressing Kits  Nidec Servo D1225C Fans Mayhems Ultra Clear Tubing Watercool Heatkiller IV Copper GPU Block  
CoolingCoolingCoolingOS
Watercool Heatkiller IV GPU Backplate Watercool Heatkiller IV PRO Copper CPU Block Watercool Heatkiller IV Tube 150 Borosilicate G... W10 Pro 64  
MonitorKeyboardPowerCase
Acer XB271HU Ducky One TKL ISO/UK Version Cherry MX Blue/Blu... EVGA SuperNOVA 1200 Platinum CaseLabs Mercury S8 White with Pedestal and Ext... 
MouseMouse PadOtherOther
Razer Deathadder Elite OCUK  Aqua Computer Aquaero 6 XT Aqua Computer Splitty9 
OtherOtherOther
Aqua Computer Hubby7 Bitfenix Alchemy 2.0 Black PSU Cables Vortex Backlit PBT Doubleshot Keycaps  
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