PSU tier list 2.0

[Darkbreeze]

Yeah I know, I agreed to that initially, but then the topic swayed over to a different topic of discussion of disagreement.

Are we at agreement that a discharged capacitor has the same amount of electric charge as a charged capacitor?

Like your fav engineer says,

...misuse of the word "charge," using it both to refer to a charge of
energy (capacitor, battery) and a quantity of electric charge. A
"charged" battery contains just as many electrons as a "discharged"
battery, because batteries store their energy as chemical fuel, a battery
is simply a chemically-fueled electron pump, and is "charged" with
chemical fuel, not with electrical energy. A fully charged battery
contains the same net electric charge as a discharged battery.

So yes, we agree, on that point, kind of. But, it's irrelevant. Whether the same number of electrons and protons are present in a charged or discharged medium, has no bearing on whether that medium is charged or discharged, and whether that "charge" is chemically fueled or is electrical energy.

 

[Darkbreeze]

That's what I want all companies to do.

Nobody asked or cares what you want.


Aah, just yanking your chain again. You're so easy Turkey.

 

[Someone Somewhere]

Depends on where you are talking about.

While the total number of electrons (and thus coulombs of charge) may remain the same in the whole capacitor, the amount of charge on each plate most definitely does not, and it has a significant amount of electrical potential trying to balance out those charges.

Lengths of wire or even a lump of plastic or ceramic all have plenty of charge, but it is all at equal potential so is not storing energy in that sense.

Talking about 'equalising' the charge may be more apt, but it's well into semantics.

 

[exkhill]

Found an XFX XT500 500w bronze efficiency. No overclocking, just some gaming.
Is it good?

 

[Nuckles_56]

At this point, we don't know exactly, as there aren't any reviews for it yet, but we know that it uses poor quality capacitors.

 

[exkhill]

Okay. Thanks anyways.

 

[turkey3_scratch]

That's what I want all companies to do.

Nobody asked or cares what you want.


Aah, just yanking your chain again. You're so easy Turkey.

Glad we sorted this thing out. My head is always full of charge (pun intended).

 

[Fahad78]

I'm building an ITX build and need a good PSU, but I'm not sure which one would fit and be the best. My build is listed below.

http://uk.pcpartpicker.com/p/KXVGvK

 

[turkey3_scratch]

Assuming it takes a normal ATX unit (spec page won't specify) FSP Hydro G 650W.

 

[logainofhades]

Evga G2 650w would be my pick. Cost a bit less, and has better warranty.

 

[tiny voices]

Evga G2 650w would be my pick. Cost a bit less, and has better warranty.

Agreed. I;d get the G2 as well.

 

[tiny voices]

Anyway, different subject, this Sama Forza 800W is quite nice http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=468 and it should be hitting the North American market eventually. It's one of the most attractive power supplies I've seen. It's just that, it's another expensive Titanium unit. I'd like to see this company make some Gold units to compete with the G2. That's what I want all companies to do.

I think this is pretty ugly. Plus with more and more cases hiding the PSU, I would never consider paying more for a "prettier" unit.

 

[Fahad78]

@turkey3_scratch and @logainofhades are you guys talking to me?

 

[logainofhades]

@turkey3_scratch and @logainofhades are you guys talking to me?

Yes

 

[turkey3_scratch]

G2 costs a lot more.

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($99.99 @ Amazon)
Total: $99.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-05 10:34 EDT-0400

PCPartPicker part list / Price breakdown by merchant

Power Supply: FSP Group Hydro G 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($81.50 @ Newegg)
Total: $81.50
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-05 10:35 EDT-0400

Hydro G has better value; Aris even included it as one of the best value PSUs in his article.

 

[tiny voices]

I;d still have the EVGA.

 

[turkey3_scratch]

$18.50 more for the G2 doesn't seem justifiable to me. The 650 G2 has worse value than the 550 and 850 G2 it seems always. That's why I think FSP hits the sweet spot with this unit.

 

[tiny voices]

I would pay that extra $18 for the warranty and the ability to deal with EVGA (one of the best) customer support, vs FSP (nothing to write home about) customer support.

 

[turkey3_scratch]

I think a lot of sites need to step up their reviews with more information. With sites like Tomshardware and Techpowerup testing things like every possible crossload combination and transient response, hold-up time, other sites should start doing this because it's incredible how many units fail these things, and they are all important tests. I know they don't have the resources for everything, but I'd think they'd be able to at least test transient response. Now when I look at Jonnyguru reviews, I kind of wish they had more, because Aris' reviews are so detailed, but maybe I'm asking too much.

 

[tiny voices]

Thing is, alot of those tests represent VERY unrealistic, and even impossible real world situations. Sure, they have some value, but they aren't SUPER important.

 

[turkey3_scratch]

The transient response is a very realistic test, especially the 12V one. While gaming, load fluctuates a ton, which makes that one in particular quite important.

Some of the crossload situations are realistic, some are not, someitmes blots of surprising colors appear on those graphs you wouldn't see in the normal load tests.

 

[tiny voices]

More testing is always good, I'm just trying to point out that some are more useful than others, and that we shouldn't completely discount a review because it doesnt have 20 crossload tests.

 

[Onus]

^Agreed. Of all the tests, crossloading is probably of least interest to me. On a given rig, it isn't something likely to change.

 

[turkey3_scratch]

Crossload with heavy 12V is somewhat a possibility. Most reviews gradually increase load on all 3 rails in their load tests, but realistically the 12V rail increases at a much higher, exponential rate in a typical system while the 3.3V and 5V usually remain down there. Maybe not that far down there like we see sometimes, but pretty low.

 

[Onus]

If it it's a tier-1 or even tier-2 PSU, [close to] 100% is available on +12V and the lesser rails use VRMs off of +12V, so maxing +12V should matter at all.