Ideal power requirements for a custom build Desktop

Hi Guys

I am building a new desktop with following components

OS Name Microsoft Windows 7 Professional
Version 6.1.7601 Service Pack 1 Build 7601
System Manufacturer INTEL_
System Model DH67CL
System Type x64-based PC
Processor Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz, 3401 Mhz, 4 Core(s), 8 Logical Processor(s)
BIOS Version/Date Intel Corp. BLH6710H.86A.0119.2011.0523.1030, 5/23/2011
Installed Physical Memory (RAM) 8.00 GB

Name NVIDIA GeForce GT 520
Adapter Type GeForce GT 520, NVIDIA compatible
Adapter Description NVIDIA GeForce GT 520
Adapter RAM (2,147,483,648) bytes

Power Supply
Discovery 600 Watts (+12v 22W)

Chasis has 2 fans and this desktop would be mainly used browsing, moderate level of gaming and would be running Oracle database on demand.

My concern is about the power supply part (nVidia card mentioned +12v current rating 22A and this is the maximum provided by the current power supply). Should I go for higher output PSU?


2 answers Last reply
More about ideal power requirements custom build desktop
  1. 1) DO NOT buy a cheap low quality psu.
    Stick with known high quality brands such as Seasonic, Corsair, XFX, PC P&C, or Antec to name a few.

    2) Discovery is a brand unknown to me, but a 600w psu with only 22a can't be any good.
    Thic Corsair 430w unit has 28a which should be sufficient for your needs:

    3) It is not wrong to overprovision your psu a bit. It will still consume only the wattage that is demanded of it. The price increase will not be much.
    In addition, it will operate in the more efficient middle third of it's range and be quieter. A quality 550w unit will still power the latest top end 28nm graphics cards like the 7970 or GTX680.
  2. Hi Geo

    Thank you very much for the reply friend. Well, Kuwait is not a versatile market where you can really have multiple choices. You get either the costliest brands like thermal take or cheap ones like Discovery The selection process once again becomes difficult when most of resellers don't keep any sample pieces or technical specs with them.
    Anyway the one I picked up for my new desktop machine DC output is 12v 24A max! I was keeping on monitoring the temperature physically for couple of days (summer is just starting here and the airconditioners will be on around the clock) and seems everything is "kool" until today.

    I am trying to figure out a proper thermaltake PSU, once I get a recommendation, will order it online.

    Thanks guys,

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