8-pin cpu power connector

I have bought a new mainboard, an MSI B450 Gaming Pro Carbon, and also to my surprise, it features 12 pins for the cpu power connection.

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My power supply, a Pure Power 10 BN274 600 Watt, just functions 2 x 4 pins connectors. Luckily, it has actually cable administration, yet before I buy an added 4- or 8-pin cable, I wonder:

Do I actually have to buy an added cable to obtain the board up and running? Would the board run fine simply through the 8 ports being plugged in? If so, which one need to I chose?

The CPU in question for me is a Ryzen 2700X.

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cpu motherboard power-supply
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asked Nov 29 "18 at 16:40
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k0pernikusk0pernikus
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From endure, it suffices to install the 8 pin connector on the left.

The appropriate 4-pin-connector is basically a redundancy that the CPU might draw upon under extreme pack many likely just pertinent as soon as you execute excessive overclocking.

(The board manufacturers the majority of likely also develop in some more added room in instance the next CPU generation needs even more power.)

So just affix the 2 ports (CPU_PWR_1) on the left, and also leave the right one (CPU_PWR_2) empty. If your system will not boot or does not run steady, just then you have to think about buying the added cable or upgrading your PSU.

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edited Jul 17 "19 at 12:53
answered Nov 29 "18 at 16:40
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k0pernikusk0pernikus
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I’ve bought a Ryzen 3700X (65 watts TDP), a MSI X570-A PRO (via additionally both connectors) and a Seasonic FOCUS Plus Gold 550 as PSU.As you, I discovered the two CPU connectors on the motherboard and that the PSU only had a solitary CPU 8 pin (2x4) connector.

I tried with that single connector and the device (Windows 10) froze after a number of minutes of normal use (CPU was not under stress).My device likewise hosts a Geforce 1070 and 3 SATA SSDs. It draws roughly 100~150 watt of power without display screen, far from PSU 550 watts maximum power.

See more: Solved: The Computer Is Configured To Require A Password In Order To Startup

I’ve reput the PSU with my 10 year’s old Corsair HX520 (which had both connectors) and the system is perfectly steady since.

So, at least for Ryzen 3000, I think you need to attach both CPU connectors to stop Windows 10 freeze.

Also, the MSI x570 A PRO manual (web page 32) clearly says « Important : Make certain that all the power cables are secudepend connected to a correct ATX power supply to encertain secure procedure of the motherboard » on the Power Connectors page


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edited Jul 19 "19 at 11:45
answered Jul 17 "19 at 11:35
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paulgregpaulgreg
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To carry out an additional example per paulgreg"s answer, I am presently running a Ryzen 7 3700X with an MSI X570 Gaming PLUS. I just set up every little thing this morning and have been running benchmarks and tension tests all afternoon. My mechanism is running perfectly secure with just the 8-pin CPU connector.

At this allude, I"m inclined to think everyone that the added 4-pin connector is only tright here for redundancy in heavy overclocking.

See more: Rock Candy Xbox One Controller Driver For Pc, Does This Controller Work On A Pc


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answered Aug 2 "19 at 19:55
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varcharmandervarcharmander
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