Comptability issue

[arnekick]

Hi i am looking to put together a new pc but i have a comptability issue with my PSU does someone have a PSU that does meet the requirements for my motherboard?

My psu delivers 8 pin power but my motherboard has a 8 pin power and a 4 pin power connection.

I am looking to overclock.

PCPartPicker Part List

Type	Item	Price
CPU	AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor	$499.99 @ Best Buy
CPU Cooler	Corsair H150i PRO 47.3 CFM Liquid CPU Cooler	$159.99 @ Newegg
Thermal Compound	Thermal Grizzly Kryonaut 1g 1 g Thermal Paste	$8.29 @ Amazon
Motherboard	Asus ROG Crosshair VIII Hero (WI-FI) ATX AM4 Motherboard	$379.89 @ SuperBiiz
Memory	Corsair Vengeance RGB Pro 32 GB (2 x 16 GB) DDR4-3200 Memory	$177.99 @ Amazon
Storage	Samsung 970 Evo 1 TB M.2-2280 NVME Solid State Drive	$169.99 @ B&H
Storage	Intel 660p Series 2.048 TB M.2-2280 NVME Solid State Drive	$184.99 @ Amazon
Video Card	MSI GeForce RTX 2080 SUPER 8 GB GAMING X TRIO Video Card
Case	Corsair Obsidian 500D RGB SE ATX Mid Tower Case	$279.98 @ Newegg
Power Supply	SeaSonic PRIME Ultra Platinum 650 W 80+ Platinum Certified Fully Modular ATX Power Supply	$141.99 @ SuperBiiz
Monitor	Acer XB271HU bmiprz 27.0" 2560x1440 165 Hz Monitor	$549.99 @ B&H
	Prices include shipping, taxes, rebates, and discounts
	Total (before mail-in rebates)	$2573.09
	Mail-in rebates	-$20.00
	Total	$2553.09
	Generated by PCPartPicker 2019-08-29 06:11 EDT-0400

 

[Faisal A]

What wrong with your PSU ?

[arnekick]

2 minutes ago, Faisal A said:

What wrong with your PSU ?

It only has an 8 pin and the motherboard needs 8 + 4

 

[Faisal A]

You can get an adapter like this or choose another PSU

https://www.ebay.co.uk/itm/ATX-4-Pin-Female-to-8-Pin-Male-EPS-Power-Supply-Cable-Adapter-Convertor-P4PM-12v/292070377561

Edited November 25, 2019 by LogicalDrm

[arnekick]

On 8/29/2019 at 1:34 PM, Faisal A said:

You can get an adapter like this or choose another PSU

 

Thats not what i ment my psu delivers 8 pin power but my motherboard has a 8 pin power and a 4 pin power connection

Edited November 25, 2019 by LogicalDrm

[Faisal A]

SO the adapter will split it

[arnekick]

Just now, Faisal A said:

SO the adapter will split it

The thing you send splits a 4 female in a 8 male. i just said i have 8 pin and i need 4 so i also have no 4 pin to split up. Or am i looking at this wrong

[GoldenLag]

It will work fine. Tho there is a lot of money going to waste in that build.

[Deuxez]

Im pretty sure that some of those mobos that require both 8 pin and 4 pin actually just need the 8 pin to function correctly, and MAYBE ur able to overclock. Do some research first tho, as im not sure. I remember this from an old post on here like 1 month ago, as someone had a similar issue with not having enough cables for the mobo, but it worked out at the end.

[arnekick]

5 minutes ago, GoldenLag said:

It will work fine. Tho there is a lot of money going to waste in that build.

How so? and if i overclock will it still be fine if i only connect the 8 pin power connecter

[GoldenLag]

1 minute ago, arnekick said:

and if i overclock will it still be fine if i only connect the 8 pin power connecter

You will never exceed the minimum spec of a single 8 pin unless you have bucket of LN2 next to you and a lot of experience in extreme overclocking.

2 minutes ago, arnekick said:

How so?

Well. 970 evo doesnt make sense, the PSU does not need to cost that much. There are other mobos with similar featureset at a cheaper price

 

Among a few other optimizations

[tzaitam]

2 minutes ago, DankDeuxez said:

Im pretty sure that some of those mobos that require both 8 pin and 4 pin actually just need the 8 pin to function correctly, and MAYBE ur able to overclock. Do some research first tho, as im not sure. I remember this from an old post on here like 1 month ago, as someone had a similar issue with not having enough cables for the mobo, but it worked out at the end.

Yeah it is clear in the manual for the mobo that it is optional and only really useful for extreme overclocking (LN2 or other subzero cooling) and even then there is no conclusive evidence that the 4 pin makes a difference.

 

[Spotty]

On 8/29/2019 at 1:11 PM, arnekick said:

My psu delivers 8 pin power but my motherboard has a 8 pin power and a 4 pin power connection.

Just use the 8pin. The second 4pin is optional.

If you want an additional EPS12V connector then hit up Seasonic and buy another cable from them, or check out third parties that do cables. It needs to be designed to work with your specific model of PSU (Seasonic Prime Ultra Platinum).

 

On 8/29/2019 at 1:34 PM, Faisal A said:

You can get an adapter like this or choose another PSU

 

Please no.

Edited November 25, 2019 by LogicalDrm

[Stormseeker9]

19 minutes ago, arnekick said:

It only has an 8 pin and the motherboard needs 8 + 4

 

Motherboard doesn’t need both as far as I’m aware. Just the 8 pin will do for normal use (no ln2 OC /dry ice etc)

[arnekick]

Ok thanks for all the replies

[Constantin]

Plug just the 8 pin, don't need the 4pin