PSU 6+2 vs 4+4 HELP

YorkPens

Reputable
Dec 6, 2015
2
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4,510
Hello,

I'm building a computer for the first time, and everything has been going smoothly up until I started plugging things into the PSU (Corsair HX850i). The 24 PIN connector is self explanatory, but I'm having issues figuring out what plugs should go to the 8-pin on the mobo (Asus Z170 Pro Gaming) versus the 8 pin to the GPU (EVGA GTX 970). The PSU just has five plugs with a label in the middle that says "6+2 PCI-E & 4+4 CPU" (pictures here: http://www.corsair.com/en-us/hxi-series-hx850i-high-performance-atx-power-supply-850-watt-80-plus-platinum-certified-psu). Everything I can find online says they should be clearly labeled, or that serious damage can occur. Can someone help me with what plugs should go into which plugs? The 8-pin cable labeled "CPU" I assume is the one to the MoBo, and the 8-pin cable labeled "PCI-E" is the one for the GPU. So I know to not get the cables mixed up, but does it matter which plugs on the PSU I plug the cables into? Both types of cables fit into all 5 of the 8-pin plugs.

Thanks for y'alls help!!
 
Solution
The power supply has a standard plug that can be either a CPU power source or a PCIe power source. The cable determines what the function. As long as you use the cable marked CPU for the CPU and one marked PCIe for the graphics card you should be OK.

kanewolf

Titan
Moderator
The power supply has a standard plug that can be either a CPU power source or a PCIe power source. The cable determines what the function. As long as you use the cable marked CPU for the CPU and one marked PCIe for the graphics card you should be OK.
 
Solution
Hi,
Yes, 4+4 (CPU) goes to the motherboard and 6+2 (PCIE) to the graphics card.
"does it matter which plugs on the PSU I plug the cables into? Both types of cables fit into all 5 of the 8-pin plugs."
No. Connect the CPU to one of the two top ports and the PCIe cables to two of the three under.
 

YorkPens

Reputable
Dec 6, 2015
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4,510


kanewolf: Thanks so much for your help! That's what I was hoping for, seems simple enough! Just wanted to be sure on my decision without frying hundreds of dollars of equipment.