How big of a power supply do I need

[Dethfrumbelo]

Enermax is probably your best bet with 80% efficiency, unlike most PSUs which go 65%-70% tops. I'm still not sure about the split 12V rail though... I wonder if that isn't self-defeating.

Even 500W is probably overkill, but sometimes it's better to be safe than sorry.

 

[jterrell]

You've got an intel mobo listed with an amd chip. That wont do obviously. I think you meant to add the MSI NEO Plat 2.

I would suggest the 530 watt Sparkle or Fortron psus for 74 or 75 bux. They are gonna give you rails as strong as the Ultra psu's would rated 100 watts higher.
http://www.newegg.com/app/View...=17-104-968&depa=0

The 12 states 18 to 26 watts but I've seen most poster claim 30 to 33 watts on Hardocp power supply forum. Its a proven and reasonably priced psu.

And just use this site to wattage needs.
http://www.jscustompcs.com/power_supply/

 

[jpeyton]

Originally posted by: NarcoticHobo
It comes with 120mm fans, are they not silent enough?

Well they probably run at full voltage (12V). When you have a 120mm fan at high RPMs, it's very loud no matter what brand it is. You need to cut the RPMs somehow, for a balance of airflow and low-noise. Fan controllers use resistors to cut the voltage to the fan.

 

[NarcoticHobo]

I'll order some silent fans if these prove too loud for me, but like I said I will be overclocking so I need airflow over silence. Also that site said I would need about a 500W power supply after I added in the second GT manually.

I'm going to look at the enermax noisetaker power supplies they seem to be good quality and relatively quite.

 

[Gamingphreek]

OCZ Powerstream 520Watt. Or if you dont mind jet engines the PCP&C PSU.

-Kevin

 

[NarcoticHobo]

Ok here is what I have now:

COOLER MASTER Round, 10-Inch, Floppy drive cable, Booted, 2-Connector ( CLEAR )
Item# N82E16812103304
Status: In Stock
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$3.99

$3.99



COOLER MASTER ROUND, 18-Inch, ATA133/100/66 IDE Cable, 2-Connector ( CLEAR )
Item# N82E16812104225
Status: In Stock
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$5.99

$5.99


Card Reader/Adapter


Atech USB Digital Card Reader/Writer(Black) INTERNAL/EXTERNAL, Model PRO-9 Black
Item# N82E16820176815
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$36.00

$36.00


Cases (Computer Cases, ATX Form)


Thermaltake VA3000 Dream Tower Tsunami VA3000BNA Black Mid Tower Case -RETAIL
Item# N82E16811133137
Status: In Stock
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$102.50

$102.50


CD/DVD Burners (RW Drives)


MSI 52X24X52X16 SATA Combo Drive, Model X52P - Retail
Item# N82E16827100055
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$47.00

$47.00



NEC 16X Double Layer DVD±RW Drive, Black, Model ND-3500A BK W/SW, OEM with software
Item# N82E16827152029
Status: In Stock
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$76.00

$76.00


Fans, Heatsinks (Case, CPU, Chipset)


KINGWIN Arctic Liquid Cooler System For Intel P4/AMD K7 & K8, Model "AWC-1" -RETAIL
Item# N82E16835124005
Status: In Stock
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$99.99

$99.99



Floppy Drives


NEC 1.44MB Black Internal Floppy Drive, OEM
Item# N82E16821152005
Status: In Stock
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$7.00

$7.00




Hard Drives


Western Digital Raptor 74GB 10,000RPM SATA Hard Drive, Model WD740GD, OEM Drive Only
Item# N82E16822144160
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$177.00

$177.00



$-25.00 Mail-In Rebate
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Memory (System Memory)


Patriot Dual Channel Kit 184-Pin 1GB(512MB x 2) DDR PC-3200 w/ XBL Technology - Retail

Item# N82E16820220033
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$223.00

$223.00




Power Supplies


OCZ PowerStream 520W Power Supply With Adjustable Power Rails With LED Indicators, SATA Connector, Model "OCZ520ADJ" -RETAIL
Item# N82E16817104152
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$139.00

$139.00


Processors


AMD Socket 939 Athlon 64 3500+, 2.2 GHz, 512KB L2 Cache 64-bit Processor - OEM

Item# N82E16819103494
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$272.00

$272.00



Software - Operating Systems


Microsoft Windows XP Professional With Service Pack 2 -OEM
Item# N82E16837102153
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All of this plus an Asus a8n-SLi and 2x 6800GT's PCIe

 

[NarcoticHobo]

So this is all good then? This setup should leave me with about $400 for future upgrades and software.

 

[XRdirtHead]

Size matters when it comes to your PS. I'd say around 500 watts should do ya fine.

 

[erosenwinkel]

I read one article that said AMD users need strength on the 3.3 rail and lots of users say the 12V rail is most important for AMD64. Can someone please clarify?