Apparently I need a new PSU, any suggestions?

jimthebob

jimthebob

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Mar 23, 2013
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So I wake up this morning, groggy eyed and tired dreading the day of work ahead and I stumble to my main PC. I power on the monitors and they turn on but show no display. So I look at my PC and it's off. Figuring a brownout overnight I soon realize my server is still on and both PC's hooked to a UPS. Hmm, odd. So I check connections, cycle power, etc; nothing.

So, more awake now at the alarm of my Main Rig (see sig) not turning on, I grab another power supply just to test since the board is showing no LED's lit indication power. I plug the other PSU in and violla; happy lights on the board. Switch back to the old PSU and nothing.

So, I guess it's time to get a new PSU. I don't quite need the overkill of the 1000 watt PSU that was in the PC this time, however. Just something that will happily run an OC'd i7 4820k, 32gb of RAM, 2 SSD's, and an R9 280x. I don't plan on adding a second video card or upgrading to anything really power hungry in the future I won't need a ton of power to spare. I would like it to be black and be at the very least semi-modular. Any suggestions?
 
Seasonic G series 650 watt for 65 AR on Newegg.
 
Well guys, I was heavily leaning towards the Corsair RM750X but for another $10 including the cabling I need, I sprung for the on sale RM850X. I think it'll do the job nicely. I have a LGA2011 system which "requires" an additional 4 pin motherboard CPU connector so I figured for $10 extra to have the connector why not.
 
I guess I'm late to the party, but I love my EVGA p2 750, came from a coraair TX 750 and noticed my voltages are much more tightly regulated
 
what about the HX and AX series, are those any better or it's just a waste of money?
 
HX is probably a little below the G series, and the original AX is probably about the same level. All of them are below the RM-x series.
 
jimbob200521 said:
Well guys, I was heavily leaning towards the Corsair RM750X but for another $10 including the cabling I need, I sprung for the on sale RM850X. I think it'll do the job nicely. I have a LGA2011 system which "requires" an additional 4 pin motherboard CPU connector so I figured for $10 extra to have the connector why not.
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Excellent choice! High quality and truly quiet.

Kryogen said:
what about the HX and AX series, are those any better or it's just a waste of money?
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RMx is a much better choice.
 
Tsumi said:
HX is probably a little below the G series, and the original AX is probably about the same level. All of them are below the RM-x series.
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Meeho said:
RMx is a much better choice.
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Guys, I feel like I'm missing something. I know the RM is great--it even surpasses some AX models on the ripple suppression by a little. But the AX is WAY better constructed, handles transient response better, and has better efficiency.


@OP: I'm personally partial to Seasonic, especially their Prime line.
 
I see it as AX having miniscule improvements where it isn't an important difference but RMi/RMx being noticeably quieter.
 
any use with the rmI over the rmX?

why is the RM better if they are making 2 more expensive classes?
 
The "i" version lets you use the Corsair interface. You'll need to buy the controller and have compatible hardware by Corsair to take full advantage. I don't personally see the point but I'm sure it has its uses.

As for the classes, it's AX>HX>RX. I think what the others are saying is that it's up to you to decide whether the differences are worth it. I think so. They don't. Nobody is wrong--it's up to what the person values more. I rather spend $50 extra dollars for that extra bit, but I totally get why some people won't.
 
cai_shawn said:
Guys, I feel like I'm missing something. I know the RM is great--it even surpasses some AX models on the ripple suppression by a little. But the AX is WAY better constructed, handles transient response better, and has better efficiency.


@OP: I'm personally partial to Seasonic, especially their Prime line.
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In my mind I was thinking of the original 80+ Silver HX and 80+ Gold AX lines, not the updated Gold and Platinum respectively. Damn it's been a long time...

Kryogen said:
any use with the rmI over the rmX?

why is the RM better if they are making 2 more expensive classes?
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The digital interface has no functional uses. It's really just a gimmick for those that like to see what's going on and/or giving some semblance of control even though it doesn't provide any.
 
Kryogen said:
any use with the rmI over the rmX?

why is the RM better if they are making 2 more expensive classes?
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RMi has the (useless) interface.

As I've said, I see it as lacking nothing in quality while operating silently. I'm never going to benefit from a tad better transient response from an already good one or a mV smaller ripple, but I'll benefit from improved acustics 24/7.
 
I used to go for the mega pricey PSUs with new builds, but it seems Silverstone and a few others are doing decent budget PSUs now. Enermax worth a look too. So for my older PC, I run Silverstone RT550 and 450W. 550W-750W is probably plenty for you.
edit: those SS psus are budget as exterior, old school rats cable nest and no loom etc, silver outside, but I don't give a fuck, my big blue server box sits there and hardly ever sees light of day.

If I was building new I'd spend a bit more on a decent single PSU though. Or go dual fanless...

Enjoy your new psu!
 
N4CR said:
I used to go for the mega pricey PSUs with new builds, but it seems Silverstone and a few others are doing decent budget PSUs now. Enermax worth a look too. So for my older PC, I run Silverstone RT550 and 450W. 550W-750W is probably plenty for you.

If I was building new I'd spend a bit more on a decent single PSU.
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Almost every brand has their budget PSU line, as good PSUs continue getting cheaper and more competitive in a crowded marketplace. The Seasonic G series and Corsair RM-x series are good value units, getting you what was top of the line 5 years ago for mid-range prices.
 
5 years ago? This is Jonnyguru's RM1000x summary:

Performance 10
Functionality 10
Value 10
Build Quality 10
Total Score 10


Summary

With the RMX series, Corsair is seeking to get back some of the market share they've lost to some very strong competition in recent years. If they keep this performance up, it shouldn't be a problem. The RM1000x is the monster under the bed for Corsair's competitors, and is going to be awfully hard to beat. It's an excellent product in every conceivable way I can think of, and I can't think of one thing to hold against it. Not one thing. You guys know me... if I can find any problems at all, a perfect total score just doesn't happen.

The Good:

  • did Platinum efficiency cold
  • excellent voltage stability on all rails
  • better than excellent ripple suppression, all rails
  • fully modular
  • tons of connectors
  • semi-fanless
The Bad:

  • nothing
The Mediocre:

  • again, nothing
 
Meeho said:
5 years ago? This is Jonnyguru's RM1000x summary:

Performance 10
Functionality 10
Value 10
Build Quality 10
Total Score 10


Summary

With the RMX series, Corsair is seeking to get back some of the market share they've lost to some very strong competition in recent years. If they keep this performance up, it shouldn't be a problem. The RM1000x is the monster under the bed for Corsair's competitors, and is going to be awfully hard to beat. It's an excellent product in every conceivable way I can think of, and I can't think of one thing to hold against it. Not one thing. You guys know me... if I can find any problems at all, a perfect total score just doesn't happen.

The Good:

  • did Platinum efficiency cold
  • excellent voltage stability on all rails
  • better than excellent ripple suppression, all rails
  • fully modular
  • tons of connectors
  • semi-fanless
The Bad:

  • nothing
The Mediocre:

  • again, nothing
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Well, yes, the HCP-1000 was top of the line 5 years ago and performed just about the same. The Seasonic 1000w Platinum also came out about 5 years ago and had just as good, if not better performance. Kingwin Lazer Platinum 1000w, same story. The cheapest of the three was $230, ranging up to $250. The RM1000x is currently around $170. The middle of the pack Gold 1000 watt PSUs 5 years ago were in the $170-200 range. Other 1000 watt PSUs have since surpassed these in performance, and have taken over the premium price points, with these taking up the mid-high range.
 
If this is mid-high performance range, I don't see the benefit of premium at all. IMO, naturally.
 
Meeho said:
If this is mid-high performance range, I don't see the benefit of premium at all. IMO, naturally.
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OklahomaWolf didn't either. It doesn't change the fact that the premium units still command a premium for a reason.
 
Seasonics Prime series. Its gets the best scores in reviews and tests. To top it off, its the most quiet PSU.

Fan-chart-TD-margin.png
 
would a seasonic prime 850 be the best overall choice ?

850 is strong enough for any "normal" pc even with 2 gpus, right? (not that I think that I will ever have 2 gpus anyway...)

I'm more like I7, 1-2hdd, 1 ssd, 1 gpu.... a few fans, 850 is probably plenty
 
Kryogen said:
would a seasonic prime 850 be the best overall choice ?

850 is strong enough for any "normal" pc even with 2 gpus, right? (not that I think that I will ever have 2 gpus anyway...)

I'm more like I7, 1-2hdd, 1 ssd, 1 gpu.... a few fans, 850 is probably plenty
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850 is more than enough. You would be just as well served by a unit in the 500-600 range.
 
Kryogen said:
would a seasonic prime 850 be the best overall choice ?

850 is strong enough for any "normal" pc even with 2 gpus, right? (not that I think that I will ever have 2 gpus anyway...)

I'm more like I7, 1-2hdd, 1 ssd, 1 gpu.... a few fans, 850 is probably plenty
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Best overall choice? Maybe.

Best value? Most likely not. The EVGA G2, Seasonic G series, and Corsair RM-x series offer far better value than the premium units. If you're not overclocking balls to the wall, a PSU in the range I listed would be far more suitable. You won't notice the difference between 1% voltage regulation and 0.5% voltage regulation, especially when ATX spec allows for 5%.
 
How old is your dead PSU ? Corsair have very good warranties and if I recall correctly even extended some a year or two ago.. (If I remember correctly when I bought mine it (AX) it had 7 years warranty)
Anyway, my vote is on Corsair AX platform... been rock solid for me <5years now...
 
my TX is still going strong at 8 years old, but I believe that it's time for retirement.
 
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