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How much power do i need for my pc? (PSU)?




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  #1  
Old 20th Nov 2008, 19:31
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Posts: 1
 
hi guys, i am building a computer and i need a psu to match:

mobo: ASUS M3N-HT DELUXE/Mempipe - motherboard - ATX - nForce 780a SLI

gpu: xfx nvidia 8800gt 670m 512mb ram sli ( 2 cards)

cpu AMD PHENOM X4 9750

ram: kingston hyper x 4gb 1066mhz (4 cards)

hdd: 7200 rpm 80gb

dvd: basic dvd drive (havnt picked one yet)

and some basic fans

someone told me i needed a 1000w card but i think thats a bit over the top! any suggestions? i really dont want to underdo the power but on the otherhand i am on a budget.

thanks

  #2  
Old 20th Nov 2008, 19:50
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http://www.computer-juice.com/forums...station-18844/
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"I loved the P182 so much that, when my wife's system was all noisy and needed all sorts of cleaning, I bought her one. Then, when I wanted a cat, I bought a P182. The P182 is not a cat per se, but it's still an excellent buy."
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My System: 日夏子

Processor(s):
C2D E6400 2.13 -> 3.00 OC
Motherboard:
MSI P6N SLI Platinum 775
RAM Memory:
2GB Patriot DDR2-800
Graphics Card(s):
PNY 8800GTS 320MB
Sound Card:
Sound Blaster Xtremegamer
Hard Drive(s):
1TB F3 + 500GB + 80GB
Optical Drive(s):
1x SATA
Case / PSU:
Antec 900 / Corsair 750HX
Cooling:
3 Yate-Loon 120mm + 200mm
Network / Internet:
Qwest
Monitor(s):
Dell 22" S2209W 1920x1080
Operating System(s):
Windows XP + 7
  #3  
Old 20th Nov 2008, 22:00
New Member
Posts: 1
 
600-750 tigerdirect.com
  #4  
Old 20th Nov 2008, 22:30
New Member
Posts: 1
 
How many fans? That will make a difference. Also, I'm surprised you're going with such a basic hard drive given the rest of the system specs.

At any rate, 750W should be enough, but quality is the most important aspect here. A cheap power supply in a high-end system like this is a huge risk to take. What kind of chassis are you getting? Make sure it is a good chassis, because a poorly-vented chassis will lead to heat issues, which will also kill your system.

A quick search led me to the following chassis/psu combo on Newegg:
http://www.newegg.com/Product/Produc...82E16811129021

Click the View All link under the combo deals and here is a 850W PSU option there that will save you a few bucks. It may be a little more than you wanted to spend, so do your own search. But stick with Antec if you can for the PSU. And don't overlook the necessity of a well-designed chassis for a performance system like you are building.
  #5  
Old 20th Nov 2008, 23:31
New Member
Posts: 1
 
I like to think more is better; 500-650watts is plenty. There are 550w units out there as well. Remember your system only takes what it uses, so your video card will pull about the same as your X4 9750 during internet play 36watts. And more than the CPU during screensaver and game play. 200watts-500watts usage.
  #6  
Old 21st Nov 2008, 00:15
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Usually I just wouldn't respond (read the thread I linked!) but a 850W Antec? Are you kidding me?

Minus the fact that the build is a very weird mishmash of parts, a 500W Earthwatts, 400W Corsair, or 400W Seasonic is very much fine. A low-quality "high-wattage" power supply just costs you more in power bills and is prone to failure. For $150 you could get a modular Corsair 520, not some junk non-Earthwatts quad-rail Antec bundled with a giant black box with no features.
__________________
"I loved the P182 so much that, when my wife's system was all noisy and needed all sorts of cleaning, I bought her one. Then, when I wanted a cat, I bought a P182. The P182 is not a cat per se, but it's still an excellent buy."
  #7  
Old 21st Nov 2008, 09:47
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Posts: 2,156
 
Very well put Carbon.
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My System: First OC

Processor(s):
Intel E2180 @ 2.85
Motherboard:
Gigabyte GA-P35-DS3L
RAM Memory:
2x1GB OCZ PC2-9200 reaper CL5
Graphics Card(s):
Gainward ATI 3850
Sound Card:
on board
Hard Drive(s):
Seagate Barracuda 7200.7 120GB
Optical Drive(s):
HITACHI DVD-ROM GD-2500
Case / PSU:
Corsair VX450
Cooling:
AC freezer7 Pro, 2x80mm, 1x90mm, 1x120mm
Network / Internet:
on board / supposedly 10Meg virgin cable
Monitor(s):
Viewsonic Vx922; Viewsonic VE702m
Operating System(s):
XP Home
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