is my psu good?

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dwatterworth

dwatterworth

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The EVGA Supernove G2 750 is made by FSP. FSP makes some decent power supplies. Not as good as Seasonic or some of the other top tier units, but I don't think yours will be unreliable or dangerous to your computer. What sort of hardware are you running with that PSU?

 
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jareDrake13

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i7 3770 with a GTX 650
 
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JackNaylorPE

JackNaylorPE

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Phillip Corcoran

Phillip Corcoran

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Not a recommended PSU brand here on Tom's Forums. We recommend Seasonic, Corsair and Antec brands.

You see different opinions about EVGA though (previous poster for one) but our recommendations are the brands that are consistently highly praised.

Doesn't mean EVGA ones are no good, far from it. It's just a relative thing like bad, good, better, best.
EVGA = Good
 
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jareDrake13

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Thanks, actually Johnny guru was the reason I bought this psu, apparently if he approves it it's going to be a pretty decent psu, and it appears my friend has NO idea what he's talking about :)
 
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numanator

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The problem with power supplies is that there are only a few companies that are reliable across the board (Seasonic for example). For most companies, you have to look into which individual units are good and which have some flaws.
 
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JackNaylorPE

JackNaylorPE

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Buying by brand name is a fool's choice. Most everybody makes a wide range of PSUs aimed and various market niche's .... when you thing about the fact that most of the brands you recognize supply no more than the brand name and logo slapped on the side, this should be quite evident.

Here's an old THG post from years ago,

Also, advice about brands should be taken with a few pounds of salt :). Which of the following do you think is true ?

Antec makes crappy PSU's
Antec makes good PSU's
Antec makes very good PSU's
Antec makes great PSU's

The answer .... all of the above. Manufacturer's are in business to make money ... the more they sell the more they make. Targeting a single market segment limits the number of customers you can sell to, limiting the amount of sales. So most vendors sell to multiple market segments:

Great PSU's
CP-850 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=142
SG-650 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=113
SG-850 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=101

Very Good PSU's
HCG-900 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=211
HCP-1200 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=198
CP-1000 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=173
TP-750 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=140
TPQ-850 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=58
EA-500 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=35

Good PSU's
HCP-850 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=215
TPQ-1200 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=177
EA-750 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story5&reid=173
EA-650 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=110


Crappy PSU's
NP-650 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=117
TPT-650 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story4&reid=1
TP2-550 http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=22

Most Corsair PSU's are in fact made by Channelwell...who makes:

The entire CX series except for the 400
The entire GS series
HX750, 850 and 1000
Entire TX Series except for 650

Seasonic makes their :

AX750 and 850
HX650 and smaller
VX450 and TX650

Their flagship AX1200 is made by Flextronics
Click to expand...

Corsair makes some great / very good PSUs .... HX > AX > TX V2 / RM but the rest I wouldn't touch
Antec made some great PSUs / very good PSUs .... Great = Signature and CP series (no longer available) .... very good = most HCG / HCP series.

But even in the model line or series is no guarantee.... the HX 650, 750 and 850 are great PSUs....the HX 1000 and 1050 are dogs.
 
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InvalidError

InvalidError

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Any brand with a good enough reputation for PSUs for you to believe their ATX power supply standard compliance claims should be intrinsically safe for your computer since the ATX specification does require that PSUs fail gracefully in a bunch of typical failure modes.

While sticking to brands with good reputations solves a huge chunk of people's problems before they have a chance to occur, even the best model lines from the best brands have rotten apples slipping through QA every now and then.
 
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jareDrake13

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Yeah, wayy better than my last 3 corsair psu, i had the cx 500, 750 and 750m each of them squealed under load from and i3 and gtx 650. Now I get those are the low end ones but even on corsair's enthusiast class psu, I can see a decent amount of reviews complaining about squealing. Still I love my corsair case and keyboard, but not buying their psu anymore. Maybe if they change their OEM.
 
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jareDrake13

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Very informative response! By the way I didn't buy my psu just because it said EVGA, I got it because it got a 9.5 out of 10 from Johnnyguru, who seems to know his PSUs
 
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InvalidError

InvalidError

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Coil whine is annoying but as long as outputs are still clean and within specs, it is usually harmless. It is most common under light-load conditions where the PWM might skip pulses.
 
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JackNaylorPE

JackNaylorPE

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Now ya talking ! yes before the SuperNova series I wuda said the EVGA label was potentially a reason to stay away. But that's why ya always check w/ jonny 1st .... even when ya see a known good series like the Corsair HX, ya gotta check w/ jonny as he pointed out that the 100 and 1050 were kinda stinkers. Not that they weren't decent PSUs....but they certainly weren't in the 10.00 performance rating range that the 650 - 850 were.

Still wish there'd be more PSUs getting 10,0 on performance AND Build Quality ratings. That danged X-1250 can be had for $225 every once and a while but spends most of its time at $325 in newegg....some competition would be welcome

 
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jareDrake13

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Thanks! I know this is off topic, but I have noticed a 4 core intel cpu will outperform a 8 core amd cpu in various tasks. How is this, is it that intel cpus have better architecture? To me it seems amd is always trying to add a bunch of cores and high clock speeds regardless of heat issues, while it seems intel tries to spend time increasing energy efficiency and better heat transfer through the generations
 
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InvalidError

InvalidError

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Yes, mostly architecture: Intel's CPUs are pushing close to four instructions per clock per core while AMD is struggling to go much beyond three so AMD's chips require ~33% higher clock speeds to achieve similar average throughput per core.

Most games - including the few well-threaded ones - still depend heavily on single-threaded performance so Intel wins nearly all CPU-intensive gaming benchmarks even in stock-Intel vs OC'd AMD scenarios.
 
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