Extra atx socket on mobo.

[cookiemonster]

Hi I am just in the middle of replacing the motherboard in my grand daughters system with new motherboard,

https://www.scan.co.uk/products/gig...triple-m2-2-way-sli-3-way-crossfire-wifi-usb3.

I notice there is an extra 4 pin tax connector beside the 8 pin one I cannot find a lead for it is it needed.

This is here system,

Zalman Z3 Plus ATX/M-ATX Tower Case - Black

Intel Core i5 8600K Unlocked Coffee Lake Desktop Processor.

Cooler Master Hyper TX3 EVO CPU Cooler

AORUS Intel Z390 ULTRA 9th Gen ATX Motherboard

Samsung 960Evo M.2 NVMe

Crucial 480gb ssd.

Corsair 8GB DDR4 Vengeance LPX 3000MHz Memory

Zotac NVIDIA GeForce GTX 1060 AMP! Edition 6GB Graphics card

Coolermaster VS-Series 550W Semi Modular 80+ Gold Power Supply

Liteon Ihas324 24x Dvd±rw (dual ±r)/ram Sata Drive

Windows 10 Home 64bit

Microsoft Wired Keyboard 600 Black - USB

Kensington Mouse-in-a-Box - optical - wired - USB - black

Xenta 2.1 Speaker System

 

[Flaky]

The extra 4pin is an optional thing for extreme overclocking.
You don't need to connect it. 8pin alone is fine.

 

[eidairaman1]

That looks like a P4 connector, the other looks like an EPS 12 volt

 

[cookiemonster]

Do l need it.

 

[eidairaman1]

Do l need it.

Yes you do

 

[newtekie1]

Do l need it.

No you don't. You only need to plug in the 8-pin, the 4-pin is optional.

 

[cucker tarlson]

God damn why do you need a 250 Pound board

 

[cookiemonster]

There is not one with the power supply

 

[cookiemonster]

Will this power supply do

Corsair RM750 750 Watt 80+ Gold Fully Modular PSU/Power Supply

Buy from Scan - 750W Corsair RM Series RM750 Full Modular, 80PLUS Gold, SLI/CrossFire, Single Rail, 62.5A, 140mm Fan, ATX PSU

www.scan.co.uk

 

[eidairaman1]

Upgrade to bigger psu, of course you could try running without it, run p95 and a gpu test like furmark at the same time.

Do not suggest furmark

 

[DeathtoGnomes]

Do not suggest I do not suggest furmark. It is a gpu stress test and for a system stability check it is more than adequate.

Furmark can brick cards if the user is not careful enough.

 

[newtekie1]

Oh jesus...

1.) You don't need a bigger PSU for that build.
2.) The 4-pin is completely optional and is used for extreme overclocing.
3.) Furmark hasn't been a good GPU stress test in years. The GPU drivers detect it as a power virus and lower clocks and power limit when it is run. Meaning the GPU is never actually stressed, defeating the point of a stress test. Use loops of Heaven or Superposition.

 

[Grog6]

The manual says you need a 500w power connection to the board, or it may not work.

IDK if you really need that, but at 7A/pin, 4 pins are 336W, and 6 pins are 504W, so that goes with the manual, in that you need both connectors connected to support what they say you need.

I's Guess that's for overclocking, but IDK.

If your CPU needs more than 336W, use both.

If it works without it, and crashes when you try to OC, that's your problem.

 

[infrared]

Forget about the optional 4 pin, you're never gonna come even close to maxing out the 8 pin with an 8600K.. If you're pushing a 9900K under liquid nitrogen, then yeah, maybe.

The power supply you already have is absolutely fine, no need to upgrade. 550W is PLENTY for an 8600K + GTX1060.

 

[cucker tarlson]

Forget about the optional 4 pin, you're never gonna come even close to maxing out the 8 pin with an 8600K.. If you're pushing a 9900K under liquid nitrogen, then yeah, maybe.

I suspected his granddaughter is der8auer.

 

[_UV_]

In some rare cases this optional connector maybe mandatory, at least my Supermicro C2SBX will not power on with only one plugged in.