Question Advice on buying a new SFX PSU, which one is best reliability?

RAIDGoblin

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Jan 10, 2021
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A short while ago I posted this question:
https://forums.tomshardware.com/thr...enough-and-what-cooler.3860837/#post-23377744

...at the moment I'm running ryzen 3 3200G internal graphics, but I'm upgrading to a ryzen 7 2700X, but no internal graphics means I need a GPU now, I have an old Radion HD7770 card so I'm going to use that...

Specs;
CPU: AMD Ryzen 3 3200G and stock cooler - GPU: Ryzen CPU internal graphics
Motherboard: Gigabyte B450M Gaming, Micro-ATX
RAM: 2x16GB Corsair Vengeance LPX DDR4 3000MHz
Storage: 240GB Corsair MP510, M.2 (boot drive for Debian 10), 2x 1TB Seagate BarraCuda (RAID 1)
PSU: 300W SilverStone SST-SX300-B, SFX Seiries, OS: Debian 11, Use: Minecraft, Video/photo editing, Digital art
Build log:
https://forums.tomshardware.com/threads/build-log-sleeper-pc-with-raid-1-array.3681817/

the general conclusion was that I probably do need a bigger PSU, but that I should get away with the one I have (300W) using the old graphics card I have at the moment, that power supply is only 3 years old but it won't get wasted because I have a project planed using it and my old CPU. So all things considered getting a new PSU will save me effort when I upgrade my GPU in the future

I already have the new (second hand) CPU so I don't need alternative suggestions on different CPU's

This is pretty much my short list of PSU's at the moment, but because of annoying reasons I have to modify my case a bit to use the corsair ones or the cooler master one so I probably won't be going for them, and the Antec one is the only one I'm 100% sure will fit without any case modification at all. If there's any on this list that you specifically wouldn't recommend, or any that you would, please let me know

Thermaltake Toughpower SFX 750W:
https://www.scan.co.uk/products/750...0-plus-gold-single-rail-625a-92mm-fan-sfx-psu

Antec SF850X 850W:
https://www.scan.co.uk/products/850...old-single-rail-7083a-92mm-silent-fan-atx31-p

Corsair SF Series (2024) 750W:
https://www.scan.co.uk/products/750...m-single-rail-625a-92mm-fluid-bearing-fan-sfx

Corsair SF Series 600W:
https://www.overclockers.co.uk/b-gr...modular-sfx-power-supply-cp-90-bg-11v-cs.html

Cooler Master V750 SFX 750W:
https://www.awd-it.co.uk/cooler-mas...qEqQsmpL-IU7h-7RMQ3LlHwCw2XcbnYRoCshUQAvD_BwE

there are also some silver-stone wired ones that I could consider

my decision is on reliability rather than price, and any advice would be great because I'm kinda stuck with what to buy,
thanks for any help :)
 

Aeacus

Titan
Ambassador
my decision is on reliability rather than price
I'll add another contender;
Seasonic Focus SPX, specs: https://seasonic.com/focus-spx-2021/
and Seasonic Focus SGX, specs: https://seasonic.com/focus-sgx-2021/

Only diff between the two Seasonic units is efficiency. SPX is 80+ Platinum rated and SGX is 80+ Gold rated.

SGX review: https://www.tomshardware.com/reviews/seasonic-focus-sgx-650w-sfx-l-psu,6045.html
SPX review: https://www.techpowerup.com/review/seasonic-focus-spx-750/

When it comes to SFX PSUs, Seasonic Focus SGX would be my 1st choice. Especially reliability wise, since both Seasonic SFX PSUs have 10 years of warranty.
Though, SPX seems to have OTP issue.

Other than Seasonic, Corsair SF-series would be my 2nd option.

Corsair SF750 (2024) review: https://hwbusters.com/psus/corsair-sf750-atx-v3-1-psu-review/
Corsair SF750 review: https://www.techpowerup.com/review/corsair-sf750/

Corsair SFX PSUs have 7 years of warranty, so, less reliable than Seasonic units.