The Power Supply Unit tier list Discussion thread

[Someone Somewhere]

Hmm. I'll have to check up on this.

I was under the impression that it was possible for a indy regulated PSU to overvoltage on C6/7 states, but harder. It would require a very low load on either of the minor rails, but should still be possible. The 12V rail would be very unlikely to overvolt; it would be a minor rail instead.

It would depend on the weighting of the different rails as to whether a group regulated design overvolted on the 12V rail - some would, some wouldn't.

It would also depend on how much load you had on the minor rails; if you had a bunch of 2.5" drives, USB devices, and other 5V peripherals but nothing on the 12V rail, I can see how it would happen.

It's also worth noting that there is no one who is officially responsible for determining what is 'Haswell Compatible'; requirements change depending on who's testing.

EDIT: This is Intel's testing methodology for Haswell:

Put 0.1A on +12V1.
Put 0.05A on +12V2.
If the PSU has a single +12V rail, 0.15A load on the +12V does the same thing.
Put the maximum load on the +3.3V and +5V.
The way I calculate this is to take the maximum and divide by 4.15 and then divide by 2.
For example: Max combined for +3.3V and +5V is 150W. (150/4.15)/2=18A per rail.

It should go without saying that this is wildly unrealistic; I doubt many group regulated PSUs could fulfil these requirements even with a typical Sandy/Ivy sleep load on the +12V rail.

EDIT 2: JonnyGuru strongly implies that a lot of PSUs that claim to pass don't: http://www.jonnyguru.com/forums/showpost.php?p=98143&postcount=7

 

[Sayken]

at least cougar has done some progress.
the powerx v2 700w lives up to its name. performs as good as an xfx 80+ bronze psu of similar Wattage would do.
the powerx v1 700w and the powerx v2 550w and v1 live up to their names as well. The moment you start overclocking the moment they go crazy finding your mainboard yummy

 

[Sayken]

to make it sweet i saw in a shop the fabulous corsair cx 430w modular for 100€.
the guy there was telling people: take my word on it this is the best psu you could ever get for this money.
....................
maybe i will find him selling that op hercule psu next time telling people is a bargain ....
and the owner of the shop told me hd 5450 is a good gaming gpu. you don't need any super gpu for 1440p gaming. the 5450 will do it.
O.O are those people drunk?

 

[Lutfij]

To think they actually have a shop makes me wonder if they really are competent human beings.

 

[zeyuanfu]

Probably

 

[Sayken]

competent aliens may be able to open up shops in this country. it amazes me to no end ...

 

[Sayken]

now this is real stuff :3
http://www.aliexpress.com/item/Free-shipping-gelong-220v-12v-60a-power-converter-car-audio-power-supply-step-down-transformer-220/904184909.html
i might want to try one of those with a safety suit on

 

[synphul]

Thankfully that's why there's sites like this and others where people can get better information. Many shop owners either don't know better or buy low quality items on the cheap and overprice them then attempt to justify it with a good backstory. I've been in several places that sell electronics or pc equipment and the sales people don't know squat or are standing there scratching their heads as hard as the confused customers.

 

[Darkbreeze]

Interesting, what criteria you using for your tiers?

Seems a bit excessive... Since you will probably need to add a few tiers for bad units, you have put the CX series in tier8, which I would say is middle ground when it comes to reliability.

I'm wondering about a few things on that document as well. Kinda wondering why the VP-450 is listed twice, once as VP 450 and once as VP 450-700. I guess it doesn't matter since they're both on the same tier, but I'm wondering about the redundancy of listing it twice.

I was also wondering why it's tiered way below the CX when the available reviews for the unit elsewhere are glowing, no pun intended. Has jonnyguru done a contrary review of the unit that hasn't been made available? Seems unusual that a unit that has been tiered for mainstream use on multiple lists and one that has been tiered a full tier higher at least would switch places without a good reason for the reversal on those units positions.

I realize it's not a polished list yet but there would seem to be a few discrepancies there. Not that I'm in any way qualified to make that determination, it just seems noteworthy that some units (Even aside from those two) that have been generally accepted as somewhat higher quality units by those of you with a more advanced understanding of the inner workings, would suddenly be relegated to positions near the bottom of the rankings.

Edit: Actually, the VP-450 seems to have three listings, on two different tiers, all showing the same OEM.

 

[dottorrent]

Happy new year guys!

I have some really bad news.

Not only can I not update the list, but I can't even post the new one, thanks to the bug.

The new list had some serious additions such as OEM sources and graded by safety of use. But unfortunately, I can not go any further unless this bug goes away.

As a result, I am officially retiring the list until further notice. When JonnyGuru finishes his, please use his list until this one (finally) gets updated.

Thank you all for your incredible support and suggestions for this list, as this list got the recognition and exposure it deserved.

Dottorrent.

 

[Darkbreeze]

WTF? This is an outrage!. Just kidding. Seriously, hope it gets straightened out though as you do have support here.

 

[damric]

Well...that sucks. But whatever, I know what PSUs are good and what ones are dogs 😛

Happy new year!

 

[MeteorsRaining]

I hope the bug gets fixed at the earliest.

Heartiest New Year greetings to everyone btw!

 

[Darkbreeze]

What up MR? Happy New Year to you my friend! And everyone else too!

 

[MeteorsRaining]

Hey! Thanks mate, been feasting on the cakes and partying since Christmas, lol. Guess it's study time again, which is kinda a new year resolution I've been taking from the last 3 years 😀

 

[Darkbreeze]

I hear that. Well, be thankful for the education. It's good to be in position that affords you the opportunity. Cheers to you as well mate.

 

[Lutfij]

I'm looking into the forum bug issue...dottorrent. With this sort of hard work, I'd be saddened to see this put on hold or worse buried under posts of threads to be forgotten. Hang in there and hopefully this will be sorted out in time!

For the time being, until we're limping, can you save the content via a doc? It'd be easier to share and perhaps collaborate...?

 

[Sayken]

Happy new year! best of health and hope a tornado of luck befalls on you all 😀
damn bug hope it gets bitten to death so this thread can live on for years to come.
and let's hope 2015 sales people will learn something before waking up in the morning to get up and all for work just to go there and scratch their heads in confusion.

 

[dottorrent]

I'm looking into the forum bug issue...dottorrent. With this sort of hard work, I'd be saddened to see this put on hold or worse buried under posts of threads to be forgotten. Hang in there and hopefully this will be sorted out in time!

For the time being, until we're limping, can you save the content via a doc? It'd be easier to share and perhaps collaborate...?

It's been saved just in case. Thanks for looking into the issue by the way.

 

[Lutfij]

Its vacation period for everyone but the matter has been brought up with the devs and the team. Worst case scenario - you'll be pushed behind on publication; super worst case scenario - we'll be prescribing units off of a doc/spreadsheet 😗

You're welcome buddy! Lemme know if there's anything we can do 😉

 

[AHBman]

Hello

What do you think about the LEPA MaxBron BM550 (UE market) ? As I see here :
http://www.realhardtechx.com/index_archivos/Page22979.htm
This PSU seems to be good (546W on +12V for 550W announced) for mid range builds, but I didn't found a lot of reviews about it, and about his OEM : Yue-Lin Electrical Technology

 

[Guest]

Would it be possible to remove discontinued products? For instance Enermax Galaxy...I'm sure there's some others since the base list is 5 years old. I don't know, might be helpful if someone wants to use this as a reference for new builders if it's all current.

Let me look up which PSUs are discontinued and will be updated shortly.

It would be a good idea to keep a tiered list for discontinued products.

Some great but discontinued PSUs can still be sold at very advantageous prices, making them potentially better buys than newer models of lower quality or worse price/performance ratio.

It would also help people who want to know if the PSU they already have is crap that they should replace ASAP. Especially if they ran on it for a few years already...

 

[Darkbreeze]

We had this discussion previously actually, but way of PM, and dottorrent decided he didn't want to have to keep track of older units as well, which is understandable, but I too think it's a good idea to have them remain listed as folks in smaller countries or vendors with stockpiles of old part numbers sometimes either flood the market with batch releases of these part numbers or, as you said, it's nice to be able to reference a units model for people who have one installed but don't believe it's crap unless they see it somewhere in black and white.

 

[AHBman]

No one to helps me ?

 

[Darkbreeze]

I'm checking on that unit, hold your horses. Heh.