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12V fluctuates, normal value ?

post #1 of 5
Thread Starter 
Why my 12V voltage, fluctuates from 11.880 to 11.968 ?
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PC
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Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
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Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
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post #2 of 5
That's pretty normal. But the better the power supply, the less it will fluctuate.
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FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
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My System
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FX6300 Black M5A99X EVO R2.0 Nvidia GTS450 Team Vulcan PC3 12800 
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2 X Samsung 915N Ducky Shine III, Blue Cherry/Blue LEDs PCP&C 1kw Lian Li PC-71 (W/Window) 
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post #3 of 5
Thread Starter 
That values are from a AX760i Digital.

How much is the deviation from 12.00V ? It's 1.5% like Corsair said, or much more ? It undervolts about 150mv
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Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
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Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
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SteelSeries QcK Mini Asus Xonar DGX 
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PC
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CPUMotherboardGraphicsRAM
Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
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SteelSeries QcK Mini Asus Xonar DGX 
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post #4 of 5
The ATX specification requires that devices accept +/-5% (.6V) to be complaint, so you're well within design specification. No matter how good the PSU is, there will always be some variation with load.

Computer power supplies don't have remote voltage sense, so the resistance in the PSU cables will have an effect.

How are you measuring the voltage? The volt meters on your motherboard can be quite a bit off, too.
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al dente
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Intel 4770k Gigabyte Z87-DS3H Nvidia Geforce 970 G.Skill DDR3-10700 
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Samsung 840 Samsung 840 
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AMD Athlon 2 X2 240 ASRock 760GM-GS3 Kingston HyperX Blu Red Series 250Gig Seagate 
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Tractorbox II
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al dente
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CPUMotherboardGraphicsRAM
Intel 4770k Gigabyte Z87-DS3H Nvidia Geforce 970 G.Skill DDR3-10700 
Hard DriveHard Drive
Samsung 840 Samsung 840 
CPUMotherboardRAMHard Drive
AMD Athlon 2 X2 240 ASRock 760GM-GS3 Kingston HyperX Blu Red Series 250Gig Seagate 
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Stock FX-6100 cooler Windows XP Wells Gardner 25K7194 
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post #5 of 5
Thread Starter 
Software mobo and bios.
PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
Mouse PadAudio
SteelSeries QcK Mini Asus Xonar DGX 
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Reply
PC
(15 items)
 
  
CPUMotherboardGraphicsRAM
Intel® Core™ i7 3770K @4.5Ghz (Multiplier OC) 1... MSI Z77A-GD65 [10.10 BIOS] MSi GTX 980 GAMING + MX4 @1544mhz/1.262v; +450M... Geil Black Dragon 4x4Gb 1866Mhz [XMP] 
Hard DriveCoolingOSMonitor
Samsung 850 EVO 500Gb [AHCI] Noctua NH-D14 Windows 10 Home 64-Bit 10586.420 (FPP/retail key) BenQ XL2411T [Dual-Link DVI, 144Hz] AUO M24HW01... 
KeyboardPowerCaseMouse
Razer BlackWidow Ultimate 2014 [green switches] Enermax Revolution 87+ 750W and APC Back-UPS 950VA Phanteks Evolv Atx Tempered Glass Black + ATX 2... Razer Mamba 2015 Tournament Edition 
Mouse PadAudio
SteelSeries QcK Mini Asus Xonar DGX 
  hide details  
Reply
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