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need a better power supply help

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  • Cooler Master
  • Components
  • CPUs
  • Systems
  • Power Supplies
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a b à CPUs
a b ) Power supply
February 16, 2014 1:08:10 PM

hey guys, im looking to change my vs650 for something better over 80$ or less my specs.

i3 4130 @ 4.20GHz + cooler master hyper evo

A-Data 8Gb 2x4 1333MHz

Sapphire hd 7770 x2 crossfire o/c

Asus maximus vi formula



More about : power supply

a b à CPUs
a b ) Power supply
February 16, 2014 1:18:20 PM

I'd suggest looking for a Seasonic, XFX, Antec or Corsair (except their CX series)
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a b à CPUs
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February 16, 2014 1:18:36 PM

form the other post . . .

http://www.techspot.com/review/501-amd-radeon-hd-7770-7...
(oppsie i forgot the link . .)

Quote:
Core i7 Test System Specs

Intel Core i7-3960X Extreme Edition (3.30GHz)
x4 2GB G.Skill DDR3-1600(CAS 8-8-8-20)
Gigabyte G1.Assassin2 (Intel X79)
OCZ ZX Series (1250w)
Crucial m4 512GB (SATA 6Gb/s)
HIS Radeon HD 7770 (1024MB) Crossfire


that will draw ~60 more watts than your i3 set up:


the PSU gold rate efficiency taken into account (we'll use 90% but it would be closer to 87%)
393*.9= 353.7 watts then subtract the 60 watts to account for the i7 sandy-e and you i3 haswell. (btw, the x79 chipset uses a few more watts but we'll leave it there.)

(rounded up) 354-60= 294 watts.

XFX ProSeries 450W 80+ Bronze £34.14
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a b à CPUs
February 16, 2014 1:20:20 PM

qbsinfo said:
form the other post . . .


Quote:
Core i7 Test System Specs

Intel Core i7-3960X Extreme Edition (3.30GHz)
x4 2GB G.Skill DDR3-1600(CAS 8-8-8-20)
Gigabyte G1.Assassin2 (Intel X79)
OCZ ZX Series (1250w)
Crucial m4 512GB (SATA 6Gb/s)
HIS Radeon HD 7770 (1024MB) Crossfire


that will draw ~60 more watts than your i3 set up:


the PSU gold rate efficiency taken into account (we'll use 90% but it would be closer to 87%)
393*.9= 353.7 watts then subtract the 60 watts to account for the i7 sandy-e and you i3 haswell. (btw, the x79 chipset uses a few more watts but we'll leave it there.)

(rounded up) 354-60= 294 watts.

XFX ProSeries 450W 80+ Bronze £34.14


Having more power is always better. Always.
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a b à CPUs
a b ) Power supply
February 16, 2014 1:21:53 PM

Scoutdrago3 said:


Having more power is always better. Always.


no it is NOT.
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a b à CPUs
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February 16, 2014 1:23:45 PM

qbsinfo 450w looks good but i need something abit better and no coolermaster sucks :p 
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a b à CPUs
a b ) Power supply
February 16, 2014 1:30:04 PM

hey what about the xfx 550 80+ bronze
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a b à CPUs
a b ) Power supply
February 16, 2014 1:34:37 PM

tried and true classic
Antec TruePower Classic 550w 80+ Gold PSU £74.98inc. vat

fully modular but haven't seen any reputable reviews
550w XFX Pro SERIES GOLD 80+ Rated Fully Modular PSU £77.46 Inc VAT

and yes, both are made by seasonic:
http://www.realhardtechx.com/index_archivos/Page673.htm
http://www.realhardtechx.com/index_archivos/Page678.htm

edit: or go with the XFX 550 bronze . .was fact checking while you posted (ninja'd!)
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a c 107 à CPUs
a c 1204 ) Power supply
February 16, 2014 1:35:22 PM

Do you care if the PSU is Haswell Compatible? The XFX Pro Series Core Edition 550W isn't.
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a b à CPUs
a b ) Power supply
February 16, 2014 1:42:44 PM

Antec TruePower Classic 550w 80+ Gold is this good and is it haswell compatible?
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a c 107 à CPUs
a c 1204 ) Power supply
February 16, 2014 1:45:42 PM

ModernWarfare said:
Antec TruePower Classic 550w 80+ Gold is this good and is it haswell compatible?


Yes it's Haswell Compatible.
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a b à CPUs
a b ) Power supply
February 16, 2014 1:48:23 PM

thanks grandmaster ko888 also special thanks to qbsinfo would have got the best answer if you were faster :p 
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a b à CPUs
a b ) Power supply
February 16, 2014 1:49:59 PM

ModernWarfare said:
thanks grandmaster ko888 also special thanks to qbsinfo would have got the best answer if you were faster :p 


LOL. its all good as long as you get what you need.
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a b à CPUs
a b ) Power supply
February 16, 2014 1:54:54 PM

thanks man i would give you a hug but you're censored. xP
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a b à CPUs
February 16, 2014 1:57:29 PM

qbsinfo said:
Scoutdrago3 said:


Having more power is always better. Always.


no it is NOT.


Thats all your gonna say? No supporting evidence behind it? Just "No it is NOT"?
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a b à CPUs
a b ) Power supply
February 16, 2014 2:51:36 PM

Scoutdrago3 said:
qbsinfo said:
Scoutdrago3 said:


Having more power is always better. Always.


no it is NOT.


Thats all your gonna say? No supporting evidence behind it? Just "No it is NOT"?


yep. i get tired of explaining over and over again to people what they ought to know before making recommendations.

but quickly:

a PSU is most efficient @ ~50%-55% load level. so a 700 watt PSU would never hit its best efficiency with a system needing less than 350 watts. ALSO looking at only max load leads to another efficiency problem - idle load efficiency. PSU's take a huge nosedive when under 20% load, between 3%-7% depending on the rating; lower rated bronze(7%) would lose more than gold rated(3%). so anything that idles less than 140 watts for 700 would be affected.

w/o showing the math; so effectively a gold rated unit that is over 2x the amount needed wouldn't be as efficient as a bronze unit half the rated wattage.

a complete waste of money both for purchasing and on the power bill (what few cents difference that would make.)

a PSU ought to fit like a glove: 80% max load of the PSU's rated wattage (for gaming - mining 24/7 than 50% is better) and 20% at idle. disclaimer - there would not be a problem with a high quality PSU going over the 80% max load. it highly depends on how long of a period of time the load would be applied.

cheers.
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a b à CPUs
February 16, 2014 3:46:58 PM

qbsinfo said:
Scoutdrago3 said:
qbsinfo said:
Scoutdrago3 said:


Having more power is always better. Always.


no it is NOT.


Thats all your gonna say? No supporting evidence behind it? Just "No it is NOT"?


yep. i get tired of explaining over and over again to people what they ought to know before making recommendations.

but quickly:

a PSU is most efficient @ ~50%-55% load level. so a 700 watt PSU would never hit its best efficiency with a system needing less than 350 watts. ALSO looking at only max load leads to another efficiency problem - idle load efficiency. PSU's take a huge nosedive when under 20% load, between 3%-7% depending on the rating; lower rated bronze(7%) would lose more than gold rated(3%). so anything that idles less than 140 watts for 700 would be affected.

w/o showing the math; so effectively a gold rated unit that is over 2x the amount needed wouldn't be as efficient as a bronze unit half the rated wattage.

a complete waste of money both for purchasing and on the power bill (what few cents difference that would make.)

a PSU ought to fit like a glove: 80% max load of the PSU's rated wattage (for gaming - mining 24/7 than 50% is better) and 20% at idle. disclaimer - there would not be a problem with a high quality PSU going over the 80% max load. it highly depends on how long of a period of time the load would be applied.

cheers.


You are forgetting, he may want to add more cards to his build. Or maybe he wants to overclock both cards and the CPU. He would need a lot more power.
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a b à CPUs
a b ) Power supply
February 16, 2014 4:25:18 PM

Scoutdrago3 said:

You are forgetting, he may want to add more cards to his build. Or maybe he wants to overclock both cards and the CPU. He would need a lot more power.


no i am NOT forgetting because it wasn't mentioned as a requirement. what i did forget was to include, "and the endless, irreverent debates" when i posted:
Quote:
i get tired of explaining over and over again to people what they ought to know before making recommendations.


you recommending a 700 watt PSU was horrible and you have no business making any recommendations until you realize that.
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a b à CPUs
February 16, 2014 4:37:47 PM

qbsinfo said:
Scoutdrago3 said:

You are forgetting, he may want to add more cards to his build. Or maybe he wants to overclock both cards and the CPU. He would need a lot more power.


no i am NOT forgetting because it wasn't mentioned as a requirement. what i did forget was to include, "and the endless, irreverent debates" when i posted:
Quote:
i get tired of explaining over and over again to people what they ought to know before making recommendations.


you recommending a 700 watt PSU was horrible and you have no business making any recommendations until you realize that.


XD You still don't get that he might upgrade in the future. He might overclock multiple things at huge clocks. If you buy a more powerful PSU you don't have to upgrade the PSU every time you get a new card, or upgrade your CPU. Its not called wasting money, its called planning before-hand.
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a b à CPUs
a b ) Power supply
February 16, 2014 5:10:42 PM

Scoutdrago3 said:

XD You still don't get that he might upgrade in the future. He might overclock multiple things at huge clocks. If you buy a more powerful PSU you don't have to upgrade the PSU every time you get a new card, or upgrade your CPU. Its not called wasting money, its called planning before-hand.


no i get all that seeing that i have been doing this; being a member of various forums ( on OCN , guru3d and anandtech) for 10+ years. (this is my second account here after taking a break for 2 years on THG)

you don't get that when someone asks for advise it is for the specific hardware listed. "future proofing" is a fallacy; that day may never come and it does NO service to advise for it especially when it isn't mentioned in the OP. read the text, not what isn't there between the lines.

get it?

at least you recommended a great PSU. the coolermaster V series are phenomenal. speaking of CM, i have come to know their now product manger who use to be the PSU editor on OCN (and then had a temp gig as the PSU product man @ EVGA until office politic got in the way).

he was written some really good articles that may help explain to you where you are making a highly undesirable recommendation/suggestion.
PSU articles

under the Myth Busting: header.

i suggest you give those a good read instead of spending further time defending your bad choice by arguing with me, because i am done with this discussion.

good luck with that. ;) 
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February 17, 2014 4:55:10 AM

*clap**clap**clap* bravo made my day
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!