[SOLVED] SF750 for R9 and 3080

[gogowe]

Hello,

I am right on the way to upgrading my Workstation/Gaming PC. And somehow I fell in love with smaller compact builds.
I already got all the stuff:

• MSI RTX 3080 Suprim X
• Ryzen 9 5900X
• Asus ROG Strix B550-E
• 2x SATA SSDs 1x NVMe
• AIO (Full Custom Loop planed)
• 16 GB Ram (32 GB upgrade planed)
• A couple of RGB fans

So first I was pretty sure that I put all this hardware in the Corsair Crystal Series X 270 but because there are no great mATX (B550/X570) boards out there, mini ITX does not fit my needs, and the reviews about this case aren't the greatest (cooling performance and use of plastic) I decided to go with the new LianLi O11 Dynamic Mini.

Yeah but if you want a small build there are always compromises and this case only fits an SF(L) PSU.
Now my question:

(Tl:dr)
Does an SF750 from Corsair (750W) really handle all these components? (Especially the planned upgrade and overclocked Suprim X)

I saw many builds online using the O11 with a 3080 (Suprim X) and the SF750 is really a great quality PSU (OPP handles up to 1000W). But on the other side, a colleague of mine has a less hungry setup (TUF 3080 and i7 9700k) and his 650W PSU (What isn't that far away from my 750W) always shut of when playing Borderlands 3 so he grabbed an RM850x.

So what's your opinion/experience?

Thank you all in advance

 

[sizzling]

Wattage alone doesn’t tell you much, the 3080 causes some high transient spikes which some psu’s don’t handle as well, even some that are considered high end PSU’s.

I’m running a 3700x and Gigabyte 3080 Gaming OC on a Seasonic PRIME Ultra 650 Platinum and have had zero issues. This has been running since last September.

However your 3080 is a particularly power hungry version. Personally I’d expect a top quality unit like the SF750 to be ok.

 

[sizzling]

FYI average

 

[gogowe]

Wattage alone doesn’t tell you much

Yeah definitely, that's why I thought the SF750 will still be the better option over an 850W SFX from Cooler Master.

However your 3080 is a particularly power hungry

Yes, this is/was my main concern. I think my colleague had a rather cheap PSU that could not handle the high load spikes and turned off then.

In any case, thank you I appreciate your help.
I will wait for some more answers but I am a little bit reliefed now.

 

[jonnyguru]

SF750 for R9 and 3080

Yes. It absolutely works.