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Motherboard PSU connection

dionkoffie
By dionkoffie
in Power Supplies
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Hi,

 

I'm looking for a new power supply for my system. I have the MSI X470 Gaming plus max motherboard that has an 8 + 4 pin connector on top for the CPU power. 

image.png.56228a587a7f9e79948860f38ec490d1.png

 

I'm browsing for power supplies but I don't see any PSU mentioning that it has these connectors. What are they called? On a product page all I see is something like this: 

1x 20-pins ATX or 1x 24-Pin-ATX12V-2.x, 1x 4+4-Pin-12V, 1x 4-pins 3.5", 8x 4-pins 5,25", 4x 6 + 2-pins PCIe, 9x 15-pin SATA

 

I assume the 1x 4+4-Pin-12V would be the 8 pin connector that you can split in to 2 four pins right? I don't need the other 4 pin connector on the right since I'm not planning to overclock that much anyway.  

 

Just asking to be sure in case I buy a power supply that only has the 4 pin connector :/

CPU: AMD 3800X GPU: GTX 1080 Ti RAM: (16GB) 2x Corsair 8gb DDR4 3200Mhz Drives: SanDisk 240GB SSD, Samsung 500GB SSD, WD 1TB HDD

Motherboard: MSI X470 Gaming pro plus PSU: Gigabyte 650 watt Monitor(s): 27 inch AOC 1440p

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4 minutes ago, dionkoffie said:

I assume the 1x 4+4-Pin-12V would be the 8 pin connector that you can split in to 2 four pins right?

That's exactly what it is. An 8-pin connector that has a little clip in the middle so you can split it in half. Most modern power supplies have everything you'll need for a given system, so I wouldn't really worry about it.

Main PC:

AMD Ryzen 7 5800X • Noctua NH-D15 • MSI MAG B550 Tomahawk • 2x8GB G.skill Trident Z Neo 3600MHz CL16 • MSI VENTUS 3X GeForce RTX 3070 OC • Samsung 970 Evo 1TB • Samsung 860 Evo 1TB • Cosair iCUE 465X RGB • Corsair RMx 750W (White)

 

Peripherals/Other:

ASUS VG27AQ • G PRO K/DA • G502 Hero K/DA • G733 K/DA • G840 K/DA • Oculus Quest 2 • Nintendo Switch (Rev. 2)

 

Laptop (Dell XPS 13):

Intel Core i7-1195G7 • Intel Iris Xe Graphics • 16GB LPDDR4x 4267MHz • 512GB M.2 PCIe NVMe SSD • 13.4" OLED 3.5K InfinityEdge Display (3456x2160, 400nit, touch). 

 

Got any questions about my system or peripherals? Feel free to tag me (@bellabichon) and I'll be happy to give you my two cents. 

 

PSA: Posting a PCPartPicker list with no explanation isn't helpful for first-time builders :)

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22 minutes ago, dionkoffie said:

Hi,

 

I'm looking for a new power supply for my system. I have the MSI X470 Gaming plus max motherboard that has an 8 + 4 pin connector on top for the CPU power. 

image.png.56228a587a7f9e79948860f38ec490d1.png

 

I'm browsing for power supplies but I don't see any PSU mentioning that it has these connectors. What are they called? On a product page all I see is something like this: 

1x 20-pins ATX or 1x 24-Pin-ATX12V-2.x, 1x 4+4-Pin-12V, 1x 4-pins 3.5", 8x 4-pins 5,25", 4x 6 + 2-pins PCIe, 9x 15-pin SATA

 

I assume the 1x 4+4-Pin-12V would be the 8 pin connector that you can split in to 2 four pins right? I don't need the other 4 pin connector on the right since I'm not planning to overclock that much anyway.  

 

Just asking to be sure in case I buy a power supply that only has the 4 pin connector :/

 

The extra 4-pin is not required.

Only needed when you are pushing EXTREME overclocks (e.g. under liquid nitrogen or dry ice cooling).

 Typical Air / AIO / water cooling won't even come close to using up all the power the 8-pin power can supply.

 

You need the 8-pin (4 + 4) connector is required, but the remaining 4-pin is optional.

Intel Z390 Rig ( *NEW* Primary )

Intel X99 Rig (Officially Decommissioned, Dead CPU returned to Intel)

  • i7-8086K @ 5.1 GHz
  • Gigabyte Z390 Aorus Master
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  • 32GB G.Skill TridentZ DDR4-3000 CL14 @ DDR-3400 custom CL15 timings
  • SanDisk 480 GB SSD + 1TB Samsung 860 EVO +  500GB Samsung 980 + 1TB WD SN750
  • EVGA SuperNOVA 850W P2 + Red/White CableMod Cables
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  • Ekwb Custom loop + 2x EKwb Quantum Surface P360M Radiators
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AMD Ryzen Rig

  • AMD R7-5800X
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Intel Z97 Rig (Decomissioned)

  • Intel i5-4690K @ 4.8 GHz
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  • Sapphire Vapor-X HD 7970 + Sapphire Dual-X HD 7970 in Crossfire  Sapphire NITRO R9-Fury in Crossfire *NONE*
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<> Electrical Engineer , B.Eng <>

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<> Electronics Engineering Technician for the Canadian Department of National Defence <>

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The 8-pin connector is called EPS12V, the 4-pin ATX12V. The 4+4P is a combination of these two formats. Only one part of this split connector will fit the ATX12V (not both, don't use force to get it in), both together will fit the EPS12V.

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