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Purpose of 2nd ATX_12V_2X_1

post #1 of 9
Thread Starter 
Hi guys, I am wondering what the secondary ATX_12V is used for. I know that the 1st one is mainly used for powering up the CPU, but what about the 2nd one?

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post #2 of 9
It looks like it's for even more power if you were to install an Intel Extreme Edition CPU (such a CPU might require the extra power).
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post #3 of 9
Additional power for extreme overclocks, and possibly next gen chips. It's pretty much a gimmick right now tho, unless you have a gallon or 2 of LN2 on hand.
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post #4 of 9
Thread Starter 
I am currently using only 1 ATX_12V, with a mild overclock (say 4.2 - 4.5 GHZ). Do you think that will be enough? I am trying to ditch the 2nd one and use it for something else.
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post #5 of 9
Quote:
Originally Posted by amang View Post
I am currently using only 1 ATX_12V, with a mild overclock (say 4.2 - 4.5 GHZ). Do you think that will be enough? I am trying to ditch the 2nd one and use it for something else.
How is it doing with stress testing? I mean if it weren't enough, then there would be instability.
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250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
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Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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post #6 of 9
You only need it for extreme overclocking. (i.e. subzero) The extra plug is just to reduce voltage drop due to wire/pin resistance.
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post #7 of 9
Thread Starter 
Quote:
Additional power for extreme overclocks, and possibly next gen chips. It's pretty much a gimmick right now tho, unless you have a gallon or 2 of LN2 on hand.
Got it.

Quote:
How is it doing with stress testing? I mean if it weren't enough, then there would be instability.
Hmm good point TwoCables. I may just leave it first atm and see how it goes when I stress-test the system. I noticed in your sig that you use a UD3 mobo. Does it have a similar power ports (i.e. 2 ATX_12V)?
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Sephiroth II
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post #8 of 9
Quote:
Originally Posted by amang View Post
Got it.



Hmm good point TwoCables. I may just leave it first atm and see how it goes when I stress-test the system. I noticed in your sig that you use a UD3 mobo. Does it have a similar power ports (i.e. 2 ATX_12V)?
Nope. It's just a socket 775 board. Of course, though, it's the best one for overclocking. tehehe
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250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
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Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
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Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
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It's a computer!
(18 items)
 
  
CPUMotherboardGraphicsRAM
i5-2500K @ 4.5GHz (1.368-1.384V fixed voltage) ASUS P8P67 EVO B3 (UEFI ver. 1850) GTX 780 ASUS DirectCU II (1228 / 6300, 1.180V) G.SKILL Ripjaws X 8GB (2 x 4GB) 1866MHz, CL9 
Hard DriveHard DriveOptical DriveOptical Drive
250 GB Samsung 840 EVO (OS) 3 TB Toshiba P300 (storage) Samsung SH-S243N 24x DVD Burner Samsung SH-S203N 20X DVD Burner 
CoolingOSMonitorKeyboard
Thermaltake Frio Win 7 Home Premium x64 SP1 Retail AOC G2460PG (24" 1920 x 1080 144Hz G-SYNC) Filco Majestouch 104-key Cherry MX Blues w/NKRO 
PowerCaseMouseMouse Pad
Corsair HX650 (Bronze, ordered on 12-12-2009) CM 690 Intellimouse Optical (1.1A) 1000Hz polling rate Basic, but premium round 
AudioAudio
X-Fi Titanium HD Klipsch ProMedia 2.1 (with 16 AWG Monster Cable... 
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by DuckieHo View Post
You only need it for extreme overclocking. (i.e. subzero) The extra plug is just to reduce voltage drop due to wire/pin resistance.
That explains everything. Thank you, kind sir!
Sephiroth II
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MonitorKeyboardPowerCase
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Sephiroth II
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CPUMotherboardGraphicsRAM
Intel Core i7-7700K Kaby Lake 5.1GHz ASUS ROG Strix Z270G Gaming Nvidia GTX Titan X Pascal Corsair Dominator Platinum 16GB 
Hard DriveCoolingOSMonitor
960 PRO NVMe M.2 SSD (512GB) NZXT Kraken X31 Windows 10 Enterprise Sony X800D 49" 
MonitorKeyboardPowerCase
Acer Predator X34 34" Corsair Vengeance K70 Corsair AX1200 Corsair Carbide Air 240 White 
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