8 pin connections on PSU's?

Rossil Fuel · Sep 22, 2015

I'm getting an upgrade for my computer, some of the things I have/ will have are:

CPU: AMD FX-8120 Black edition
RAM: 4x 8gb DDR3
CD-ROM: 10,000RPM/w sata connections
Hard drive: 1TB
Motherboard: Asus M5A97 LE R2.0
GPU: MSI Radeon R9 390

The GPU is where my problem arises, it requires a 6 pin and 8 pin connector to use. I need about 600W from what I have seen. The problem is, Ive tried looking online for power supplies with an 8 pin connector and I cant find one. I dunno if im looking wrong or searching for the totally wrong thing here. HELP MEEEEE!

Update: I have wrote this on totally the wrong section, I'm sorry to any admins or anything; I dont know how to change what section this is in

clutchc · Sep 22, 2015

PSUs come with a 6+2 pin connector in that size class. It fits together to make an 8 pin where required.
Personally, I'd aim a little higher for a PSU than 600W. http://www.realhardtechx.com/index_archivos/Page362.htm
Especially if you plan on doing any OC'ing.

Rossil Fuel · Sep 22, 2015

clutchc :

Ah, right thats good to know, thanks a lot mate. would 800W cover it you think, or more still? I dont know which of the cards on that link is mine :s (or most similar to)

clutchc · Sep 22, 2015

? Yours is the one listed as "R9-390", obviously. Anything 650W or bigger should suffice... as long as it isn't a cheap PSU. It is mainly about the capacity and wattage of the +12V rail(s)on the PSU. That is what does all the heavy work.

Rossil Fuel · Sep 22, 2015

Ahh, right thanks very much. I just got confused with all the variants of the R9-390 like 3x, 4x and CF and all that. Despite building my own PC, I really had less of a clue than I realised at the time

norseman4 · Sep 22, 2015

PSU's probably will not list 8 pin connectors, except maybe an 8 pin CPU or EPS power connector. Look for the number of PCI-Express power connectors, these are the 6+2 pin connectors that was listed before, and PCPARTPICKER.com lists several 600W PSUs with 2 PCI-E power connectors.

Going with PCPP, I entered the closest to what you posted and came up with 543W as the estimated power draw. At the bare minimum, I would suggest a 650W PSU, though a 700/750 would be my preference.

http://pcpartpicker.com/parts/partlist/
(It's a fun little tool)

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8 pin connections on PSU's?

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