Will my power supply work?

[Compnewbie01]

I just bought a Asus P8Z68-VLE motherboard and will be using it with an i5-2500k CPU. My existing power supply is an Antec HX520W.

I notice on the new motherboard it has an 8-pin 'EAT12V' connection near the top. I do not know what this is and wonder if the old power supply is sufficient. I am only accustomed to the 24-pin connector to power the main board.

 

[BoomerD]

Your HX520 SHOULD have the EPS12v 8 pin connector in the non-modular cables. (May also have a 4-pin EPS 12V cable as well...this one won't be used for anything, just tuck it away behind the motherboard when you do your cable management.)

Your HX520 will be fine.

 

[Compnewbie01]

By non-modular do you mean hardwired to the PSU? I don't remember what cables came with it since it has been a few years. I may have to go searching for the box full of extra cables.

 

[Compnewbie01]

And my PSU is a Corsair. Not sure why I said Antec.

 

[stargazr]

By non-modular do you mean hardwired to the PSU?

Yes that's correct. That Corsair should be fine, it's made by Seasonic. Can't get much better!

 

[TemjinGold]

It can actually get a lot better. That corsair has horrible efficiency (I used to have it.) Somewhere in the mid to upper 70s...

 

[lehtv]

It can actually get a lot better. That corsair has horrible efficiency (I used to have it.) Somewhere in the mid to upper 70s...

Not quite. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=18

77% at 20% load, 82% at 50% load, 81% at 100% load. And that's at 120VAC.

 

[stargazr]

It can actually get a lot better. That corsair has horrible efficiency (I used to have it.) Somewhere in the mid to upper 70s...

This one? It has an 80 Plus rating.
http://www.newegg.com/Product/Produc...82E16817139001

JohnnyGuru disagrees....

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=18

Think maybe you had a bad one?

 

[lehtv]

I don't think TemjinGold has personally measured the efficiency.

 

[BoomerD]

By non-modular do you mean hardwired to the PSU? I don't remember what cables came with it since it has been a few years. I may have to go searching for the box full of extra cables.

Yes. the hardwired cables. I have the HX620. Good PSU's. Mine has both the 4 pin ATX 12V and the 8 pin EPS 12V cables hardwired.

Many of the newer models have a single 8-pin cable that can be split into two 4-pin (2X2) cables...you only use one connector)

Do not confuse the EPS12V cable with the 6+2 pin Pci-E cables.

 

[TemjinGold]

Not quite. http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story2&reid=18

77% at 20% load, 82% at 50% load, 81% at 100% load. And that's at 120VAC.

I heard somewhere that efficiency slips with age a tad. He did say he had it for some time.

 

[lehtv]

Maybe it does, but not 5% over a few years. 1% in 10 years would be more plausible. (inb4 JonnyGuru). Also your reply doesn't justify what you originally said, "That corsair has horrible efficiency (I used to have it.)"

 

[TemjinGold]

Compared to today's great power supplies, that corsair indeed has horrible efficiency.

 

[BoomerD]

Compared to today's great power supplies, that corsair indeed has horrible efficiency.

The difference in efficiency isn't great enough to justify the cost of replacing the power supply.

 

[currahee440]

My computer has
ASUS P8P67LE
Core i5 2400k (OC'd to 3.6-3.9GHz)
2x4GB DDR3 1333
2 64GB SSDs
3 2TB HDDs (5400rpm)
An ASUS Xonar sound card
A TV Tuner
A WiFi adapter
Galaxy GTX 470
A DVD-RW light scribe drive
4x 120mm fans

And my Antec Neo ECO 520 can power all of that. No instability issues so far though I'm kinda surprised it can run all of that...

 

[lehtv]

Compared to today's great power supplies, that corsair indeed has horrible efficiency.

I wouldn't say 80Plus is "horrible" compared to 80Plus Gold. Plenty of good quality new power supplies are still 80Plus, it's really not a big deal.

It sounds to me you're still trying to justify your original statement. The point is that the PSU does not have efficiency in the mid to upper 70's. Could just acknowledge that and move on, you know.

 

[Magic Carpet]

I wouldn't say 80Plus is "horrible" compared to 80Plus Gold. Plenty of good quality new power supplies are still 80Plus, it's really not a big deal.

It sounds to me you're still trying to justify your original statement. The point is that the PSU does not have efficiency in the mid to upper 70's. Could just acknowledge that and move on, you know.

+1. Agreed, the difference isn't very substantial. I pay more attention to acoustics