Power Supply for FX 4350 + R9 270

[Free4Rides_1]

Heloo,

I'd like to ask what power supply to get (with what wattage). Also I do not want any overclocks.

PC Specs:

FX-4350
R9 270
2x 7.2K HDD Sata
1x CD/DVD

 

[volkgren]

Quality is better than wattage, but you do need enough wattage. I'd say 550W would be a good place.

Suggestions on good quality, but affordable units - https://pcpartpicker.com/products/compare/nB3RsY,3hkwrH,FdRFf7,KmgzK8/

 

[Rexper]

Suggestions on good quality, but affordable units - https://pcpartpicker.com/products/compare/nB3RsY,3hkwrH...

Those are mixed suggestions. You have a low quality PSU, the S12ii which is also overpriced, two good budget PSUs, the Corsair CX, and a very high quality PSU, The Seasonic Focus.

The Seasonic Focus 550 and Bitfenix Formula 550 (not modular) are great deals for $60 USD without MiR.
If you cannot afford that, look at the Corsair CX / CXM grey label, be Quiet Pure Power 10 500, Coolermaster MasterWatt 550, as budget options.

 

[volkgren]

Suggestions on good quality, but affordable units - https://pcpartpicker.com/products/compare/nB3RsY,3hkwrH...

Those are mixed suggestions. You have a low quality PSU, the S12ii which is also overpriced, two good budget PSUs, the Corsair CX, and a very high quality PSU, The Seasonic Focus.

The Seasonic Focus 550 and Bitfenix Formula 550 (not modular) are great deals for $60 USD without MiR.
If you cannot afford that, look at the Corsair CX / CXM grey label, be Quiet Pure Power 10 500, Coolermaster MasterWatt 550, as budget options.

Big difference between low quality and S12II. Yes, there is some variation in them, but all of them are good quality, some better than others, and all are affordable.

*Are you the one I've already had this argument with about the S12II?

JohnnyGuru Review S12II 520W - http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=185

Performance
9.5

Functionality
9.5

Value
10

Aesthetics
10

Total Score
9.7

Summary
In what is likely the highest scoring group regulated unit I have ever tested, Seasonic has something really special here. A nice, quiet, efficient, and well performing unit that is affordable for just about any budget. Go forth and buy one, loyal readers.

The Good:
easily held Bronze efficiency, even to unrealistically low load levels
extremely low ripple and noise for a mid grade unit
nice documentation
a shallow unit for space challenged cases
looks great

The Bad:
let's get rid of that zip tie around the cables outside the case, shall we?

The Mediocre:
nothing

*I'll admit, things tend to change over time, and that unit is rather old. But, it has stood the test of time and shows to be a good quality unit. Which is unlike the old Corsair CX430, CX500, CX600 units that also scored fairly well on JohnnyGuru, they have proven to fail at quite a high rate over the years.

 

[Rexper]

Why are you using someone’s opionion from 8 years ago. The whole conclusion page you pasted is useless now, even JonnyGURU admits to that.
Gain some knowledge, and compare the power supplies using data they measured and internal shots.
Load regulation isn’t good, crossload is poor. Crappy protection IC, Hy510n, which is lacking important protections.
And that review seems a little too good still.

For example, the HCG 520 is almost exactly the same internally (same platform, caps, FETs, PWM, etc. Only differ I could see is the protection chip and fan). More in-depth review, IMO more reliable.
https://www.techpowerup.com/reviews/Antec/HCG-520/5.html
Load regulation and crossload is very mediocre.

Load regulation, crossload, and protections are very important aspects in a PSU’s quality, in systems nowadays.

The CXM grey, for example, are far better, even though they’re at a similar price. There’s just no point considering the S12ii with contemporary US pricing.

 

[volkgren]

Could you please explain the "crappy protections". Voltage regulation seems better on the 12V than the CXM.
https://www.tomshardware.com/reviews/corsair-cx650m-psu,4770-4.html

But then the 620W HCG does rather poorly, which makes me wonder about the tests themselves and the variation in individual units. Either way, the S12II is still running strong.

All single rail units lack OCP, but these units still have Over Voltage, Over Power, and Short Circuit protections. Could you explain the poor or lack of protections?

I'd probably recommend the CXM over the S12II, but I'm just not seeing poor quality there.

 

[Rexper]

Could you explain the poor or lack of protections?

Single rail units just don’t have OCP on the 12V rail. Most power supplies atleast have OCP on the minor rails. The S12ii (Hy510n) has no OCP at all. No UVP on the 12V rail. And no OTP implemented in the power supply at all. http://www.hardwaresecrets.com/datasheets/HY510N_v1%20301.pdf
It’s among the worst 8pin Protection ICs.
And even more protection flaws may be found if one were to test them.

Looking at load regulation, the HCG 520 deviates 4.26% and 4.5% on the 5V and 3.3V rails respectively, between 60w and 520w load. This is mediocre at best.
On the CXM for example, the 12v, 5V, and 3.3v rails deviated within 1.5%

And crossload performance, which is very important in power supplies for systems nowadays. The S12ii doesn’t perform well here at all, inevitably due to the outdated group regulated design.

I wouldn’t consider the S12ii unless its priced under $25, as a system integrator.
A modern review of the S12ii by Aris would be nice, but Seasonic prefers no in-depth testing that reveal flaws. They haven’t revised the design for the past decade since it simply because it already sells well (according to Seasonic Rep)