How much power do I need?

I've made a few changes to my existing system and now I'm wondering if it would be a good idea to upgrade my PS. I'm not a big gamer but every now and then I do get hooked on a game for a bit..

Here's my build:


Asus P8P67
Intel i5 2500 - Stock Heatsink/Fan
16GB Corsair Vengeance Ram
Asus HD6850 - Requires 2x 6pin connectors
Kingston 64GB SSD
Seagate 2TB 7200RPM
LG BD-RW
Auzentech X-Plosion 7.1 Sound Card (PCI)
E-SATA PCI-E Card


I'm currently using a Corsair CX600 as my Power Supply. Was considering upgrading to the CX750, or TX750.. just not sure it's necessary. Any advice is welcome!!
9 answers Last reply
More about power need
  1. Your Corsair CX600 power supply is more than sufficient for your pc. Upgrading the power supply is not necessary.
  2. I posted on your previous post, so I'll just copy and past it. You will be absolutely fine because I have a 7870 with a 3570k with a CX430 Watt power supply. You could probably have 2 way crossfire with your graphics card because it only takes up 130 watts. 130 + 106 + 10(hdd) + 2(ssd) + idk about the 24pin so lets just say 150 watts there. So in total your machine is probably using around 300 watts at full load. I could be totally wrong with the 24-pin thing but if I'm not then yea...
  3. For a system using a single ASUS EAH6850 graphics card AMD specifies a minimum of a 500 Watt or greater power supply. The power supply should also have a maximum combined +12 Volt continuous current rating of 25 Amps or greater and have at least two 6-pin PCI Express supplementary power connectors.

    Total Power Supply Wattage is NOT the crucial factor in power supply selection!!! Sufficient Total Combined Continuous Power/Current Available on the +12V Rail(s) rated at 45°C - 50°C ambient temperature, is the most critical factor.

    The Corsair Builder Series CX600 V2 (CP-9020048-??), with its maximum combined +12 Volt continuous current rating of 46 Amps and with two (6+2)-pin PCI Express supplementary power connectors, is way more than sufficient to power your system configuration with a single ASUS EAH6850.
  4. Sell your 6850 add the money you have saved and buy a new graphics card. Your PSU is good enough to handle any single VGA.
  5. Sorry for the multiple posts.. site kept telling me it was "unavailable" and I didn't realize the post went through.
  6. Thanks for the quick replies :) I'll stick with the PS I've got.

    maxinexus - I don't game a whole lot so not sure it's worth buying a new card but I'll keep it in mind.

    Thanks again everyone, this site is fantastic!!
  7. dmbottawa said:
    Thanks for the quick replies :) I'll stick with the PS I've got.

    maxinexus - I don't game a whole lot so not sure it's worth buying a new card but I'll keep it in mind.

    Thanks again everyone, this site is fantastic!!


    "PS. I'm not a big gamer but every now and then I do get hooked on a game for a bit.. "

    I am the same way...but when I game I want all eye candies on :)
  8. maxinexus said:
    "PS. I'm not a big gamer but every now and then I do get hooked on a game for a bit.. "

    I am the same way...but when I game I want all eye candies on :)



    LOL - all eye candies On.. well said!

    I wouldn't even know what to shop for now a days.. I did look at the Asus HD7850 2GB V2 & HD7870 2GB V2, decent mid-range cards from what I've seen... maybe the wifey will treat me for my b-day.
  9. You can skip few lunches, make something at home, and you save at least $40 a week in few months you have enough for a good VGA and some flowers for your wife :)

    You can also try luck on ebay. You can get preaty good deals. I sold my 6950 for $140 and my 7950 for $250. Now I'm running 7970 w boost I bought for $359 after rebate...so I actually made some money upgrading.
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