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What use is the EPS/ATX12V 8-pin and 4-pin compatible connector in Corsais HX750W?

post #1 of 6
Thread Starter 
I bought the modular PSU after buying the TX750...wow that was a lot of cords.

On this modular version there are two cords connected whether you want them or not. One is the 24-pin connector - obvious where that goes. The other is the 4/8-pin I name in the topic title. I figure if it is connected it needs to be plugged in somewhere. However I see no where to plug it in.

Am I missing it, or is it another version of the 24-pin connector for different types of mobo?

Thanks
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Sprite Brain
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post #2 of 6
It's for powering the CPU; you should see an 8-pin plug somewhere in the upper-left corner of the mobo, near the I/O ports. That's where you plug it in.
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Deep Blood
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post #3 of 6
Quote:
Originally Posted by mkohanek;12463927 
I bought the modular PSU after buying the TX750...wow that was a lot of cords.

On this modular version there are two cords connected whether you want them or not. One is the 24-pin connector - obvious where that goes. The other is the 4/8-pin I name in the topic title. I figure if it is connected it needs to be plugged in somewhere. However I see no where to plug it in.

Am I missing it, or is it another version of the 24-pin connector for different types of mobo?

Thanks

Here is a pic of where that needs to be connected.... you can either connect just 1 4 pin or both 8 pin ( I have both connected in my sig rig)
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Current System
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post #4 of 6
Thread Starter 
Ah, well that explains it....
I have a Corsair H70 and the radiator/fans has that area covered so I completely missed it...
I RMAd a CPu too because I thought it was broken, I bet that was the problem. It is OK because I was going to RMA the CPU anyhow because it had a deep scratch where the CPU meets the heatsink so I was not happy with it from the start.
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Sprite Brain
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz ASUS M4A89TD PRO/USB3 AM3 AMD 890FX X-Fire'd Radeon HD 6870's 1GB 256-bit DDR5 G.SKILL Ripjaws X Series 8GB (2 x 4GB) DDR3 1600 
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post #5 of 6
Thread Starter 
what is the difference/reasons for doing either 4 or 8 pin connection there?
Sprite Brain
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CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz ASUS M4A89TD PRO/USB3 AM3 AMD 890FX X-Fire'd Radeon HD 6870's 1GB 256-bit DDR5 G.SKILL Ripjaws X Series 8GB (2 x 4GB) DDR3 1600 
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KeyboardPowerCaseMouse
TBD CORSAIR CMPSU-750HX 750W ATX12V / EPS12V Antec Three Hundred Black Steel ATX Mid Tower TBD 
  hide details  
Reply
Sprite Brain
(13 items)
 
  
CPUMotherboardGraphicsRAM
AMD Phenom II X6 1090T Black Edition Thuban 3.2GHz ASUS M4A89TD PRO/USB3 AM3 AMD 890FX X-Fire'd Radeon HD 6870's 1GB 256-bit DDR5 G.SKILL Ripjaws X Series 8GB (2 x 4GB) DDR3 1600 
Hard DriveOptical DriveOSMonitor
Crucial SSD 64GB & 2 x HITACHI 2TB 7200 RPM RAID 1 ASUS 24x dvd-r & HP 24x dvd-r SATA & Lightscribe Windows 7 Pro 64 bit 2 x ASUS VH236H (3rd soon) 
KeyboardPowerCaseMouse
TBD CORSAIR CMPSU-750HX 750W ATX12V / EPS12V Antec Three Hundred Black Steel ATX Mid Tower TBD 
  hide details  
Reply
post #6 of 6
Quote:
Originally Posted by mkohanek;12464602 
what is the difference/reasons for doing either 4 or 8 pin connection there?

The ATX12V (4-pin) connector was introduced for the Pentium 4 and is useful for CPUs with TDPs up to about 150W. The EPS12V (8-pin) connector is intended for CPUs with TDPs >100W. (there's overlap)
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Overclock.net › Forums › Components › Power Supplies › What use is the EPS/ATX12V 8-pin and 4-pin compatible connector in Corsais HX750W?