Great power supply for small form factor builds, essentially the industry standard and suitable for anything right up to a 3090 / 5950x.
Usual price is around ~$259, rarely see it drop below $250 (particularly with PC component prices on the rise).
Corsair SF750 750W 80+ Platinum Modular SFX Power Supply $239 + Delivery (Free Pick up) @ Umart
770
Kotchi on 27/01/2021 - 20:06 umart.com.au (895 clicks)
Last edited 27/01/2021 - 20:30 by 1 other user
Last edited 27/01/2021 - 20:30 by 1 other user
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Sure, but the lower the power draw the higher the efficiency up to a point.
I think it's 50%. So, a 600W PSU becomes less efficient with increasing curve of heat/noise past 300W. I'm probably wrong on the figures, and massively oversimplifying it, but I think that's in the ballpark.
Tl;dr: The lower the proportion of the max power that you use, the cooler and quieter it will run.
Yeah to expand in that from memory most psus efficiency curve is best between 50-70% consumption. Too low and too high is not at its most efficient
Generally that's true, but the SF600 is a really great PSU. It's still at about 89% efficiency even at 600watts and deals well with spikes at 110% of its advertised capacity.
The SF750 is great too and possibly allows for a longer life if some efficiency is lost over years of use, but the 600w model will be sufficient for the majority of builds.Source: https://www.tomshardware.com/reviews/corsair-sf600-platinum-…
(Note: I use the even lesser SF450 in my Ryzen5/5700XT build with no issues)
@sharky_k: Nice! I've got the same spec pc :) but have a normal psu that's 500w. The Max draw is only 300w, from the wall too
Also the main reason to get the SF750 is for the lower fan trigger point. The SF750 can run higher longer before the fan kicks in.
That's definitely a valid point
PSUs will also degrade in efficiency over time - if you plan to keep your build for a long time or want it to have better resale value, might be worth considering. Also worth thinking about if your build is near the limit for SF600 (especially if you're overclocking an Intel chip) or you think graphics cards will become more demanding next few generations and you may upgrade.
I got the SF750 and from memory the manual says the fan doesn't kick in at all until 50% loaded
@TheLurker: Yes this is definitely the reason to get this model. It doesn’t heat up quickly to a point where the fan needs to run. Also higher wattage PSU typically uses higher quality components so it is a good long term investment.
@Davesday: It was a past comment here that convinced me to spend the money on this model. Someone said a PSU not only has a big impact on stability when pushing a system, but is also a component that will be reused for years across builds. I don't regret spending the money on this one at all.
Only frustration with it is the CPU power cable is a tad too short for neat cable management. An extra 50mm would have made a big difference.
@TheLurker: Are you using this on an ITX setup? Hard to imagine you need longer cables unless you are trying to achieve very neat cable routing/management. Looks like you will need an extension cable.
@Davesday: Yes in an NR200p. I posted some cable management pics in a past thread. Definitely just me being fussy about layout rather than a big issue.
You can run, doesn't mean you should, same as you can daisy chain a pcie cable and should still be fine, but you shouldn't
It's certainly not unsafe or intrinsically a bad idea for most systems without extremely power hungry cpus. Most 3080 systems will be drawing peak 400-500w under full gaming load, with average draws even less. The sf600 plat is more than capable of delivering that reliably.
It's good to be careful with PSUs, but at the same time there is such thing as overkill.
Thanks, I ordered one (and a mobo and thermal paste too) thanks to this post.
I was actually holding out for the new SilverStone 1000W sfx-l psu, but after reading some early reports of it (prompted by this deal), I decided that the lower noise and rock solid reviews for this Corsair PSU make it the best choice today and totally capable of running a 3090 + whatever AM4 CPU I pair it with.
Thanks Op.
Which board did you get? I’m looking for an itx myself, can’t decide.
A shamefully expensive one: Asus x570-i Gaming
I've been looking at it for a while and don't see it much below $400, so I bit the bullet and bought for $399.
To be honest, the mobo doesn't do anything that a cheaper board can't, but I really wanted it.
I also can't deny the influence that Buildzoid had when he gushed about this board on his Actually Hardcore Overclocking channel: https://youtu.be/pc2F1jVnPnY
To be fair, he highly recommends other x570 boards too.
You should probably look at his AM4 recommended motherboard roundup and skip to 21:51 for the ITX boards: https://youtu.be/S_FUe36jHaw
Not likely at this point, but check if the serial numbers fall in a bad batch that Corsair had to replace.
Can this support Ryzen 5900X and RX 6800 XT??
oc 6800 xt they recommend 800w
and 850 is the same price but not platinum rated which you really dont need to spend $$ onI don't think Corsair makes 850W SF yet.
Actually a 6800xt uses 300watt Max. Therefore 650w psu would suit even top end systems.
I wouldn't hesitate to install it in my 500w gold psu but I also like to undervolt to improve power efficiency curve rather than overclock which is extremely wasteful for practically no gain
depends which card you buy, some recommend 800 and therefore is anything goes wrong you wont get warranty I don't think
plus future proof@botchie: Good point. I remember that's why organisations follow recommendations so that for warranty purposes there's no disputes but obviously it's always over buffered :)
@FrozenFred: yeah, personally I think 800 is overkill but they recommend it so you kinds have to take the plunge :)
https://www.asrock.com/Graphics-Card/AMD/Radeon%20RX%206800%…
in any case - the way they are building these things next gen or two you will def need it so you might as well get 850 if you are buying now
@Mistredo: don't know but there is a reason recommendation is there, so if you want to risk it - go for it but I wouldn't, not after spending 2k plus in parts - for what? to save $10-20?
@botchie: Lol, 6800xt doesn't need an 800w recommendation, they're just trying to put the same power recommendation as nvidia
A 6800xt would pulls the same amount of power as all 2080 ti with 2 8 pin, and a 2080ti rog strix only has a 650w recommendation, the 800w is just marketing
Only gpus that need above a 650w recommendation are 3 8 pin models
6800XT is 750w recommended generally
Thinking along similar build with the same CPU and a Radeon 6800 instead.
you are better of with this
https://www.amazon.com.au/gp/product/B07GZJX2F1/ref=ppx_od_d…
not many ppl need platinum
Sorry - forgot to mention that it will be a mini-itx build. Would it be fine with this if I'm using an Masterbox NR200 case? What is the difference between SF and RMx?
@cerealsmok3r: The RMx won't fit in the NR200 case. That case needs an SFX or SFX-L PSU.
The RMx is the standard PS/2 form factor.@Trance N Dance: That is true, but cooler master also offer a 3d printable atx bracket design for free as a workaround. https://coolermaster.egnyte.com/fl/d18M4dx90F#folder-link/
I have this in a 3900x with a 3060ti this thing is perfect (bit of overkill) but super quiet and future proof. You won't be unhappy.
Bought thanks!! OOS now..
I'm too late
You can get it for a similar price from Amazon https://www.amazon.com.au/Corsair-Platinum-Certified-Perform…
Back in stock
small but crushes most high end normal sized PSUs out there.
The Platinum standard for SFX builds!
i have an r53600x and rtx 3080, 5 rgb fans, 4 SSDs,
currently on a 650w gold (thermaltake)… Was going to go a 850W before i considered overclocking cpu. Got the GPU undervolted atm too. Could prob give the cpu a bump on this setup, but I don't want to risk it.They're back in stock
Worth noting that you can run most 3080 systems on an sf600 (even potentially with an OCed 10900k), especially with an < 100 w CPU or mild undervolting.
But of course there's still a place for the sf750