psu options ;/

[killster1]

SO 220-G2-0750-XR looks like a popular pick.. i really just am shooting for super efficiency while being able to use 270x or maybe 270x crossfire.. 2600k z77 msi mobo 8gb ram 1 dvd drive.. corsair h90 i think for the cpu cooler.

price range 60-140?

So my question is.. should i get something other than the 110$ g2 750w evga?

i have hx850 corsairs in 3 other computers and have had zero issues so far.

 

[lehtv]

What's your current power supply?

i really just am shooting for super efficiency

80+ gold makes sense if it isn't much more expensive than 80+ bronze, or if the PSU has other features you want (like particularly quiet operation) and happens to be 80+ gold.

i really just am shooting for super efficiency

270x crossfire doesn't make sense, you'll run into VRAM limitations super fast. Besides, you can pretty much match the performance with a single R9 290 that has double the VRAM and costs ~$250.

So my question is.. should i get something other than the 110$ g2 750w evga?

Well, it is a damn good unit, and 10 year warranty makes it a really long term purchase that you can adapt for future multi-GPU configs (which may or may not ever actually happen). And looks like SuperBiiz has it for $96 after promo: http://pcpartpicker.com/part/evga-power-supply-220g20750xr

However, if you're just gaming on 1080p, 600-650W is enough as it can run any single GPU out there. (FWIW, 650W units with 4x PCIe connectors will also handle 270X crossfire, if need be.) Unfortunately I can't find any good deal on a 600-650W unit right now, so I would either go with EVGA 750W G2 or EVGA 750W B2 which is also very well built, but has Bronze efficiency and 5 year warranty for $60 AR from NCIX. At $60 versus $96, the 750W B2 is definitely the better deal - unless your electricity is expensive.

 

[killster1]

shit..

Sub Total$105.99
Coupon Saving-10.00Tax$7.90Shipping & Handling Total 113.99

so.. well 109 new on ebay i think is better price since i have tax ;( might try haggle for 100 on used one ;P Thanks for that site tho i will bookmark it didn't see that price when searched.

So i guess that will be the one for me. Much appreciated.

 

[lehtv]

Used PSU? No, you lose warranty

 

[I am concerned]

SO 220-G2-0750-XR looks like a popular pick.. i really just am shooting for super efficiency while being able to use 270x or maybe 270x crossfire.. 2600k z77 msi mobo 8gb ram 1 dvd drive.. corsair h90 i think for the cpu cooler.

price range 60-140?

So my question is.. should i get something other than the 110$ g2 750w evga?

i have hx850 corsairs in 3 other computers and have had zero issues so far.

http://www.newegg.com/Product/Produ...Product.aspx?Item=N82E16817494024&ignorebbr=1
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182324&ignorebbr=1
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182285&ignorebbr=1

 

[lehtv]

1. http://www.newegg.com/Product/Produ...Product.aspx?Item=N82E16817494024&ignorebbr=1
2. http://www.newegg.com/Product/Product.aspx?Item=N82E16817182324&ignorebbr=1
3. http://www.newegg.com/Product/Product.aspx?Item=N82E16817182285&ignorebbr=1

1. Not modular - kinda bad idea with a big unit like that, for a setup that doesn't intend to use all PCIe cables from the get go.
2. That's a Sirfa/Sirtec built unit, workmanship and voltage regulation don't even compare to the Super Flower built Capstone series. But it's pretty good for the price and has nice features and top tier caps.
3. Stable but noisy. Fan ramps up to 1700RPM already at 100W load: http://www.techpowerup.com/reviews/Rosewill/CAPSTONE-1000-M/6.html

 

[BonzaiDuck]

1. Not modular - kinda bad idea with a big unit like that, for a setup that doesn't intend to use all PCIe cables from the get go.
2. That's a Sirfa/Sirtec built unit, workmanship and voltage regulation don't even compare to the Super Flower built Capstone series. But it's pretty good for the price and has nice features and top tier caps.
3. Stable but noisy. Fan ramps up to 1700RPM already at 100W load: http://www.techpowerup.com/reviews/Rosewill/CAPSTONE-1000-M/6.html

Even in 2003, I was picking cheap PSUs for computer builds, and they only lasted "so long." I got "wise" the following year when I began building intentionally with overclocking in mind.

None of the units linked in this thread get a thumbs-down from me, but I'm always looking for "gold" or "platinum" when I can find it.

I'd also looked at the initially-referenced EVGA model, stunned at the 10-year warranty. And warranty-period for PSUs is also a good rule-of-thumb measuring stick.

I recently built a 2x-GTX-970-SLI rig with both CPU and GPU overclocking in mind -- with a 650W Seasonic. Cutting it close, but I think I have more than 100W wiggle-room, with no plans to add additional parts to the system.

I also wonder how "Gold" figures against "Bronze" for a good PSU that might occasionally exceed its rated wattage. Tests on a BEFX XFX rebadged Seasonic 750 showed it was able to sustain above 900W draw before shutting itself down, with slightly lower efficiency at the high wattages. So for me -- "cutting it close" -- with care -- isn't a problem, as long as one doesn't make any mistakes with the numbers and measurement methods.

 

[Z15CAM]

http://www.hardwaresecrets.com/arti...edition-full-modular-power-supply-review/1695

XFX 750W Pro Black Edition (Fully Moduler) and a clone of the KM3 Seasonic and Corsair Design. Great service and I believe a 7 Year Warranty - Looks like they are building their own cases now and not usng either the Seasonic or Corsair case and extending beyond the KM3 design today.

http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=184

 

[lehtv]

Great service and I believe a 7 Year Warranty

Nope, 5 years. All XFX units are 5 years.

extending beyond the KM3 design today.

What does that mean?

http://www.jonnyguru.com/modules.php...Story&reid=184

This unit hasn't been on the market for a long time...

 

[BonzaiDuck]

Nope, 5 years. All XFX units are 5 years.



What does that mean?



This unit hasn't been on the market for a long time...

I thought I'd actually found a Rosewill Gold or Platinum model that had a 7-year warranty.

But 5-year should be a good-enough indicator.

I still wish I could find that web document I found some months ago -- thorough analysis of all "brands" and who really makes what, for which and for whom.

 

[ignatzatsonic]

I still wish I could find that web document I found some months ago -- thorough analysis of all "brands" and who really makes what, for which and for whom.

Was it either of these:

http://www.realhardtechx.com/index_archivos/Page678.htm

http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913-5.html

 

[TemjinGold]

OP: People usually put up with crossfire/sli (yes there are drawbacks and significant ones) because they can't match that level of performance on a single card. If you are looking for 270x crossfire performance, save yourself the headache and get a single strong gpu instead.

 

[lehtv]

I thought I'd actually found a Rosewill Gold or Platinum model that had a 7-year warranty.

But 5-year should be a good-enough indicator.

Rosewill? Z15C4M was talking about XFX. Rosewill Capstones indeed have 7 year warranty (used to be 5, a year or two ago).

I still wish I could find that web document I found some months ago -- thorough analysis of all "brands" and who really makes what, for which and for whom.

Realhardtechx is pretty good for that

 

[BonzaiDuck]

Rosewill? Z15C4M was talking about XFX. Rosewill Capstones indeed have 7 year warranty (used to be 5, a year or two ago).



Realhardtechx is pretty good for that

One or more of the Rosewills had raised some eyebrows more recently for great reviews. I needed some new PSUs, and when I ordered a Seasonic 650, I also got a 650W Rosewill to satisfy my curiosity. The only down-side: the Rosewill wasn't modular.

Those XFX BEFX units are indeed Seasonic, and if there's any significant price differential favoring the XFX's, it's most likely trading on the Seasonic brand-name. I suspect that the arrangement for rebranding sacrifices nothing in quality, but rather that an outfit like Seasonic just makes more revenue by selling the basic part assembly in bulk that way. Or -- they might tweak the specs to fit the brand-name outfit's preference.

 

[killster1]

oh i went with the 850 g2 evga for 102 shipped open box new from ebay ;/ shrug i wanted 750 but 850 was cheaper by 10+$ hope not to much power seems like should be really good efficiency.. and as far as 270x i have 4 of them laying around ya maybe i should sell 2 of them and get something else i just dont like shipping things its hassle.. but if i did wonder what card id buy now ;P

 

[Valantar]

Well, with that PSU you're surely missing your goal from the first post of 'super efficiency.' After all, at idle your system will be running below 10% of the PSU's rating, an area in which efficiency is typically pretty bad. Even at a gaming load with your 270x you might be pushing 200-250w, barely 25% of its rating and still way low on the efficiency curve. Oh well. It'll probably last you forever, at least.

 

[lehtv]

Well, with that PSU you're surely missing your goal from the first post of 'super efficiency.' After all, at idle your system will be running below 10% of the PSU's rating, an area in which efficiency is typically pretty bad.

Thankfully, EVGA 850W G2 does a pretty good job at low load efficiency, similar to what you'd expect from an average 500 watt bronze unit. This is at 230V AC:

Even at a gaming load with your 270x you might be pushing 200-250w, barely 25% of its rating and still way low on the efficiency curve.

No, it's not:


At 200-250W, it's already running 90-91% at 230V AC, which is excellent given that to pass 80+ Gold you need 88% at 20% load. But yes, obviously a smaller Gold unit would probably achieve better marks in the <100W area.

 

[BonzaiDuck]

Was it either of these:

http://www.realhardtechx.com/index_archivos/Page678.htm

http://www.tomshardware.com/reviews/power-supply-oem-manufacturer,2913-5.html

The article at Tom's looks very much like what I'd seen.

The "nitty-gritty" seems to be in the OEM column.

 

[adhdrunsme]

Dude what is the price range that is insane!

 

[adhdrunsme]

In fact you would have to be as dumb as a f****** pony to pay that much

 

[BonzaiDuck]

In fact you would have to be as dumb as a f****** pony to pay that much

Are you referring to the price of an 850W PSU mentioned in earlier posts?

I wouldn't buy more wattage than necessary -- for all the reasons cited before, including the efficiency factor. Of course, lower efficiency with a power-draw < 100W may mean "excess power consumption," but the overall total wattage consumed is lower.

Window-shopping "good" PSUs in the 600 to 850 range, I think you can expect to pay in the neighborhood of a minimum $100. There's no sense in paying $150 to $200 if you can get top-end quality for less and match the wattage to just equal worst-case power-draw situations.

 

[lehtv]

Window-shopping "good" PSUs in the 600 to 850 range, I think you can expect to pay in the neighborhood of a minimum $100. There's no sense in paying $150 to $200 if you can get top-end quality for less and match the wattage to just equal worst-case power-draw situations.

$100 may reflect the average price for a high quality Gold rated 600+ watt unit but there are practically always options that are much cheaper than that (even without counting rebates) and just as reliable. Gold efficiency alone is rarely worth paying a lot for.

Right now, you can get Antec EA-650, Seasonic S12II/M12II 620W, XFX 650W or EVGA G1 650W for $65-80. (pcpartpicker)

Same for 700-750W - there's EVGA 750W B2, XFX 750W, and Antec HCG-750M between $74-92. (pcpartpicker)

It's only in the 800-850W range that minimum $100 for a high quality unit is realistic. EVGA 850W B2 is $90, HCG-850M is $110, and decent Gold units are $125 and up. In this wattage range, Gold makes a lot more sense because if you're powering 500+ watts of PC, the unit is going to pay back the extra cost of the Gold rating much faster than with a low wattage PC.

 

[BonzaiDuck]

$100 may reflect the average price for a high quality Gold rated 600+ watt unit but there are practically always options that are much cheaper than that (even without counting rebates) and just as reliable. Gold efficiency alone is rarely worth paying a lot for.

Right now, you can get Antec EA-650, Seasonic S12II/M12II 620W, XFX 650W or EVGA G1 650W for $65-80. (pcpartpicker)

Same for 700-750W - there's EVGA 750W B2, XFX 750W, and Antec HCG-750M between $74-92. (pcpartpicker)

It's only in the 800-850W range that minimum $100 for a high quality unit is realistic. EVGA 850W B2 is $90, HCG-850M is $110, and decent Gold units are $125 and up. In this wattage range, Gold makes a lot more sense because if you're powering 500+ watts of PC, the unit is going to pay back the extra cost of the Gold rating much faster than with a low wattage PC.

I guess that's a valid point for fine-tuned penny-pinching, and there's no sense in spending $30 or $40 extra. On the other hand, over the warranty-life of the product, the difference might be $7 to $10 per year.

Maybe I've seen enough low-end PSUs go south unannounced, and I've got a feel even for what one can expect from good PSUs. So my choices are unnecessarily biased toward better efficiency with higher warranty.

 

[killster1]

Its not a raspberry Pi box.. would like to upgrade things once in while gfx upgrades always nice and always use power.. looks like great curve from what i can tell will be 90% always or more.. i think this box doesnt use less than 120w at any moment in time but maybe i should buy a electricity meter to see for fun. Anyway i thought 100 for 850w evga 10 year warranty gold psu was a bargin.. the 850hx corsair where maybe 150..
I looked at alot of diff psu and was scared at build quality of almost all of the other choices.

 

[TemjinGold]

Incorrect. MY box uses less than 120w at idle (which is where most people spend most of the time). There is no way your box uses close to 120w at idle.