[OLD] PSU Tier List 3.0 (Legacy)

[SystemT2]

On cooler master's website the mwe gold 650w doesn't have ocp, but in this review

https://tech4gamers.com/cooler-master-mwe-gold-650w-fully-modular-psu-overview/

the author says it has ocp

[Spotty]

31 minutes ago, SystemT2 said:

On cooler master's website the mwe gold 650w doesn't have ocp, but in this review

https://tech4gamers.com/cooler-master-mwe-gold-650w-fully-modular-psu-overview/

the author says it has ocp

That's an unboxing, not a review.

It uses a single rail design so OCP isn't required on the 12v rail, instead relying on OPP.

[Stefan Payne]

Just now, SystemT2 said:

On cooler master's website the mwe gold 650w doesn't have ocp, but in this review

https://tech4gamers.com/cooler-master-mwe-gold-650w-fully-modular-psu-overview/

the author says it has ocp

It doesn't have OCP On 12V.

ON 5V and 3,3V its likely they do.

 

I have this:

[bintang]

just bought an used hx750 platinum.

its making click noise when power on and shutdown. the click noise is like clicking a button

 

thats normal isn't it?

 

my old cx600 green never has this sound

[DigitalONE]

11 hours ago, Spotty said:

It uses a single rail design so OCP isn't required on the 12v rail, instead relying on OPP.

the rmx750 is a single rail psu, why does it have ocp on the 12v rail?

https://www.tomshardware.com/reviews/corsair-rm750x-v2-psu,5585-6.html

[seon123]

5 hours ago, DigitalONE said:

the rmx750 is a single rail psu, why does it have ocp on the 12v rail?

https://www.tomshardware.com/reviews/corsair-rm750x-v2-psu,5585-6.html

79,94A*12,106V=968W. The OCP test just triggers OPP using the 12V rail. 

Edited April 29, 2019 by seon123
Something something

[Stefan Payne]

3 hours ago, bintang said:

just bought an used hx750 platinum.

its making click noise when power on and shutdown. the click noise is like clicking a button

 

thats normal isn't it?

 

my old cx600 green never has this sound

That's an electromagnetic switch...

 

Totally normal with modern, good quality PSU (not all have that but many)

[DigitalONE]

so a single rail psu without ocp is not a bad thing?

[seon123]

8 minutes ago, DigitalONE said:

so a single rail psu without ocp is not a bad thing?

It is a bad thing. Single rail PSUs are a bad thing, except for when they are low wattage.

With the RMx, it can output all of its rated power on the 12V rail, so the OPP works as 12V OCP. But with PSUs that can't output all of their power on 12V, the protection just isn't there at all. 

[nifty917]

does psu sleeved extension effect anything?

[LukeSavenije]

3 minutes ago, nifty917 said:

does psu sleeved extension effect anything?

if you have the right ones, not really afaik

[nifty917]

8 minutes ago, LukeSavenije said:

if you have the right ones, not really afaik

and what makes one right and one isnt?

[comicsansms]

1 hour ago, nifty917 said:

does psu sleeved extension effect anything?

Yes. More resistance, more voltage drop.

 

Shit extensions are fire hazards. Decent ones should be safe, (assuming you aren't running a lot of current through them - like a high power GPU. If so, definitely no), but may cause your system to become unstable.

 

Don't use extensions. If you want funky cables, buy a full modular PSU and custom cables.

[nifty917]

Just now, Comic_Sans_MS said:

Yes. More resistance, more voltage drop.

 

Shit extensions are fire hazards. Decent ones should be safe, but may cause your system to become unstable.

 

Don't use extensions. If you want funky cables, buy a full modular PSU and custom cables.

how do i know its good or bad? its a diy created by the seller and it has 18 AWG thicknes

[comicsansms]

Just now, nifty917 said:

how do i know its good or bad? its a diy created by the seller and it has 18 AWG thicknes

Just don't use them. 18 AWG is also fairly thin.

[Spotty]

3 hours ago, Comic_Sans_MS said:

Just don't use them. 18 AWG is also fairly thin.

18AWG is fairly standard gauge for PSU cables. Only expensive high end units use 16AWG on EPS/PCIe...

[Tristerin]

Im going to get to the bottom of this tonight but I think my Corsair HX850 is shot.  I don't think its my R9 Fury and will eliminate that tonight.  If it is, then Ive already got my eyes set on Vega 64.

 

Im really disappointed (don't have my receipt maybe my Newegg invoice from 7 years ago will work) that the PSU didn't last longer.  Also been disappointed with other Corsair products lately so Id personally like to avoid them altogether.  Really not impressed with their price point versus ROI over the last few years (I think I spent over $150 iirc on this PSU)

 

Need suggestions (looking to spend less than $150 for sure) on a PSU to power for the next 4-5 years my R7 1700 and for a shorter time, 2x R9 Fury Tri-X Nitro's (once I replace my other GPU) in crossfire.

 

Doesn't matter to me if its modular, or semi modular but would prefer semi or modular - also, penny pincher so if a good non-modular is available at a nice pricepoint I wont mind as long as it can support Crossfire.

 

Any suggestions/models to keep in mind while I browse Newegg?

[17030644]

On 3/18/2019 at 1:22 AM, dizmo said:

I still think it's stupid to have S above A.

this is not the alphabet though.

On 3/18/2019 at 1:20 AM, LienusLateTips said:

Units may be bumped down due to the following: missing protections,

 

Where do single-rail units fall? Can that be deemed as a missing protection?

[seon123]

2 hours ago, 17030644 said:

Where do single-rail units fall? Can that be deemed as a missing protection?

We are planning to remove high wattage single rail PSUs from the highest tiers. 

[123Abdallah]

Is 620 watt psu enough for i5 9600k and rtx 2080 gaming x trio which is the gpu recommend psu is 650watt

 

[Guest]

9 minutes ago, 123Abdallah said:

Is 620 watt psu enough for i5 9600k and rtx 2080 gaming x trio which is the gpu recommend psu is 650watt

 

What 620W?  If Sesaonic M12II, I think I know the answer. 

 

[Guest]

FYI:  This really should be it's own thread.  There's a whole forum of PSU questions and you choose to throw your post in the PSU Tier List thread?

4 hours ago, Tristerin said:

Im going to get to the bottom of this tonight but I think my Corsair HX850 is shot. 

What makes you think you have a PSU issue?  What are your symptoms?

 

4 hours ago, Tristerin said:

Im really disappointed (don't have my receipt maybe my Newegg invoice from 7 years ago will work) that the PSU didn't last longer. 

You're disappointed a PSU didn't last more than 7 years?  How many other PC components do you have that are more than 7 years old?

 

4 hours ago, Tristerin said:

Need suggestions (looking to spend less than $150 for sure) on a PSU to power for the next 4-5 years my R7 1700 and for a shorter time, 2x R9 Fury Tri-X Nitro's (once I replace my other GPU) in crossfire.

So your old PSU should have lasted more than 7 years, but the new one only has to last four to five????

 

 

[Tristerin]

35 minutes ago, jonnyGURU said:

FYI:  This really should be it's own thread.  There's a whole forum of PSU questions and you choose to throw your post in the PSU Tier List thread?

What makes you think you have a PSU issue?  What are your symptoms?

 

You're disappointed a PSU didn't last more than 7 years?  How many other PC components do you have that are more than 7 years old?

 

So your old PSU should have lasted more than 7 years, but the new one only has to last four to five????

 

 

*will make another thread for all this but you deserve an answer*

PSU developed coil whine over night, getting complete system restarts (no fan spin ups just dead shut down then restart) at random when GPU takes load, or random during gaming (cant replicate, just random) - I am ruling out the GPU now have an old HD 7850 in it atm but PSU still whines, no shut downs yet (have another R9 Fury but wife is gaming atm cant test out with that draw)

EDIT - taking voltmeter to it tomorrow with electrical guy at work

 

Yes at this pricepoint 100% disappointed.  If you think otherwise that's odd to me.  Every PC component from that same 7 year old PC is working right now so I guess expectation is high?

 

Apparently that price point (which Im willing to spend) only lasts up to 7 - of course my expectation should drop...considering your line of questions, yeah?

[Guest]

1 hour ago, Tristerin said:

PSU developed coil whine over night, getting complete system restarts (no fan spin ups just dead shut down then restart) at random when GPU takes load, or random during gaming (cant replicate, just random) - I am ruling out the GPU now have an old HD 7850 in it atm but PSU still whines, no shut downs yet (have another R9 Fury but wife is gaming atm cant test out with that draw)

Reboot isn't typically a PSU issue.  Shut down is.

 

If it's rebooting, look at RAM as a possible source of your issue.

 

Coil whine is something that occurs in lots of PSUs, new and old, and can vary based on hardware used and the load.  The whine is caused by electricity flowing through magnetics (transformer, coils, etc.) at an audible frequency.  It does not point to a defective PSU.

 

1 hour ago, Tristerin said:

Yes at this pricepoint 100% disappointed.  If you think otherwise that's odd to me.  Every PC component from that same 7 year old PC is working right now so I guess expectation is high?

They give the PSU a 7 year warranty because they expect it to only last 7 years.  Of all of the parts in a PC, the PSU easily works the hardest, yet is the one that is often overlooked and is left in the PC from upgrade to upgrade because there's no way to "benchmark" a PSU without very expensive equipment.

[vanished]

Sorry if this has been asked already but I don't really feel like reading 33 pages... Why is the evga g3 considered poorer than the G2?  My understanding was that the quality was as good or better and the only downside was potentially more fan noise.