PSU tier list 2.0

[Darkbreeze]

I'd recommend having an extra 100w beyond what the GPU card calls for here:

http://www.realhardtechx.com/index_archivos/Page362.htm

 

[stavrosmast]

Depends on how heavy it is and if you increase voltages

 

[Darkbreeze]

As a general rule, 100w typically covers any additional overclocking of the CPU or GPU if you use the recommended GPU card capacity as your baseline.

 

[stavrosmast]

Super Flower leadex gold series 1300w vs evga super... g2 1300w?

 

[RCFProd]

Super Flower leadex gold series 1300w vs evga super... g2 1300w?

The G2 is based on the Super Flower Leadex Gold series. They're practically the same.

Darkbreeze already explained that on page 37:

No, the EVGA G2 is made by Super Flower, Leadex platform, not by Seasonic. Still, I'd consider it a better unit as I've seen more commentary regarding failed or faulty HXi units around here than I ever have of the G2 units.

 

[stavrosmast]

Ok but does anyone know how much noise the evga one on 980x2 i7 oc'd 32gb ram, 2xhdd 1xssd 2xdvd 3xfans at full load? Cause its missing the echo setting

 

[Darkbreeze]

They are nearly identical units. They should have close enough test results to not really matter. There may be some differences, but not pronounced differences.

 

[IntelTurtleFan]

Ok but does anyone know how much noise the evga one on 980x2 i7 oc'd 32gb ram, 2xhdd 1xssd 2xdvd 3xfans at full load? Cause its missing the echo setting

I would recommend 850w.

Best bet is the P2/G2 from EVGA. Any other tier 1 unit will be good as well. EVGA generally has slightly better prices for what you get compared to competing models depending on where you live.

Your build seems to be mighty powerful so I would only use tier 1 to keep all the parts liking each other. Tier 2 will do.

 

[Darkbreeze]

The GTX 980 SLI calls for 750w, and even that figure is inflated, but safe. For GTX 980 SLI and an overclocked i7, 850w is plenty with ANY Tier 1 or 2 unit that has the necessary PCIe supplemental power cabling.

 

[Karadjgne]

You'll use @200w for the system, 450w max for the 2x gpus. That's roughly 650w if you seriously push the system stock. That'll leave at least 100w for OC and very few ppl will run a 200w cpu, those that do make sure they have power to spare. 750w will cover you just fine with a 980sli, or go for 850w if you are still nervous.

 

[Turb0Yoda]

That moment when you realize that the 700 Core/500 Memory Overclock is really more like 200/50 respectively since the GT 740 won't let me unlock voltages no matter what. 😛

That 600B of my friends couldn't really power that 7850 he has...

 

[Benjiwenji]

Hey, I ended up going with the 750 B2 for $75 and the Antec HCG 850m for $70 xD

 

[Darkbreeze]

Both are good choices. The B2 being a somewhat better unit in my opinion.

 

[stavrosmast]

@Karad On cm power calculator I put the most power hungry things that I will every put in my system and it said 798w min/rec...

 

[Karadjgne]

I have no faith in those power calculators. Example: my fans run 0.18A so I could run 5 fans and still not use 12w (1A x 12v =12w) and those power calculators use 6w per fan (that being average between some fans using 0.75a and 0.25a. You also have some of brand hdd that use a lot of power and some that use little, etc so all calculated results are questionable. The Gigabyte G1 970 can use upto 220w, the Asus 970 167w, a 53w discrepancy that is not taken into consideration, nor is the actual amount during any OC on a cpu as that can vary considerably depending on the actual current used and voltage at speed., at 4.2GHz my 3570k uses 1.14v, at 4.3 it's 1.336v, at 4.6GHz my 3770k is 1.208v. Large differences, and thats not counting current draw.

Average cpu = 100w, average mobo + drives + accessories = 100w, gtx980 =75w (pcie) + 75w(6pin) + 75w(6pin) = 225w x2. Total = @ 650w so actual gaming wattage will vary between @550w-600w. Average OC = 0w, most OC is only by multiplier which changes nothing. Large OC can be 100w, so you'd be looking at 650-700w nominal. Within tolerances of a 750w psu. Only reason to go larger (850w) would be OC cpu, OC gpus, maximum pressure due to oversized resolutions like 2k/4k using high cpu/gpu% using multiple hdd as source (SSD uses next to nothing power wise) while simultaneously burning a DVD.

Just because a calculator says you can use 798w doesn't mean you could ostensibly do it, it's the sum total of everything running maximum output at the same time, almost physically impossible.

 

[IntelTurtleFan]

Calculators overestimate 99% of the time.

 

[Darkbreeze]

I don't trust them either. There is a reason RealHardtechX and MSI provide the numbers they do on their PSU requirements. It's because they've already tested power consumption using high end equipment and then added a buffer to that amount in order to accommodate any spikes or quality issues. Those recommendations include very accommodating inclusion of the rest of the system and except in cases where some insane overclocking is happening, are accurate and safe. There is no reason to ever cut it close when it comes to "what can I get by with". Don't "get by". "Get safe".

 

[IRONBATMAN]

I just bought the Super Flower Leadex Silver. Apparently it's the exact same thing as the EVGA G2 , but it has a 80+ silver rating for 230v. Its sold only in south east asian markets. So is there a 80+ 115v and 80+ 230v ? Or are they combined ?

 

[stavrosmast]

ironbat is it loud when you have eco OFF?

 

[Karadjgne]

I have a 120v Evga 550w g2, eco off, and the damned thing is absolutely dead silent, even when under load during stress tests or games.

 

[ko888]

I just bought the Super Flower Leadex Silver. Apparently it's the exact same thing as the EVGA G2 , but it has a 80+ silver rating for 230v. Its sold only in south east asian markets. So is there a 80+ 115v and 80+ 230v ? Or are they combined ?

It's called 80 PLUS 230V EU Internal with the 80 PLUS Standard to 80 PLUS Titanium efficiency ratings.

80 PLUS Silver

230V EU Internal
Non-Redundant
PFC .90 at 50%
Percent Loading ... Efficiency
20% ................... 87%
50% ................... 90%
100% ................. 87%

 

[stavrosmast]

I have a 120v Evga 550w g2, eco off, and the damned thing is absolutely dead silent, even when under load during stress tests or games.

So, you believe that a 1300w G2 will be dead silent too? Cause it doesnt have a eco switch...

 

[RCFProd]

A lot of your questions can be resolved by common sense. Is it that hard to understand that any G2 series are high quality thus are really good pretty much from ANY perspective.

You are asking too many useless question in my opinion, and I'm sorry if I'm harsh with that. We have to put in a lot of effort with a lot of posts to answer truly basic questions from you. Most of which has actually been answered already.

Try to ask 1 question, and base the information given from that post. Not add 10 related questions where question 1 already includes the information you needed. It is more trolling than anything now.

YES, any EVGA G2 power supply without eco switch on is already very silent.

 

[Karadjgne]

My Seasonic 520w M12-II is a tier2 unit and dead silent at most loads and barely audible when pushed at high loads. But then again, it's a quality unit, so is built with quality parts, quality workmanship, quality design so I get Quality Performance. That includes a nice, quiet, quality fan. This is the same for any tier1, majority of tier2 and some tier3 units. The Evga G2 series is one of the top tier1 psus. You can expect excellence from it in every department, whether the eco is on or off.

And to answer your next unasked question, the average quality fan uses 2.5-3.5 watts, so shutting off the fan to save power on a 1300w psu is an absolutely pointless exercise in futility. No point having a 2.5w eco switch on that 1300w monster psu at all.

 

[turkey3_scratch]

Is it normal for high quality power supplies to make a tick noise when the computer is turned on and off? It only happens then. I have an EVGA 850W G2 and I read online elsewhere that this is common in high quality units.