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Would a antec 450 watt PSU be enoug power for this build?

I have the following for the setup:

-i3 2100 cpu
-MSi motherboard
-4 gb of ram
- saphire radeon vapor 4850
- 250gb hard drive
- dvd rom
-couple of regular 120 mm fans.


would my antec 450 watt PSu be enough power? id like to avoid buying another one.
19 answers Last reply Best Answer
More about would antec watt enoug power build
  1. Should power it easily.

    The 450vp is not the most efficient nor the highest quality power supply that's out there but it's still loads better than most of the crappier PSU's for the same price.

    It'll work. Have fun!
  2. lilotimz said:
    Should power it easily.

    The 450vp is not the most efficient nor the highest quality power supply that's out there but it's still loads better than most of the crappier PSU's for the same price.

    It'll work. Have fun!


    quick question i got all these components for 280$ good deal you think? just curious if i got screwed or a good deal. without the psu of course was 280.
  3. Hello k1ngkev1n1;

    You'll be OK.
    A 450W PSU is what Sapphire is recommending for a HD 4850 equipped system.
    http://www.sapphiretech.com/presentation/product/?cid=1&gid=3&sgid=568&pid=221&psn=&lid=1&leg=0#
  4. Not enough information to know if your PSU will support your system. The power on the 12v rail is more important than the total wattage of the PSU for a gaming system.

    You need to know if the 12v rail has enough wattage for the card. Look at the sticker on the side of the PSU for the per-rail ratings. You're looking for something like +12v- the XXa, which is 12 volts @ XX amps. multiply the voltage by the amperage to get the wattage, and compare that to the power your card draws under load.
  5. quilciri said:
    Not enough information to know if your PSU will support your system. The power on the 12v rail is more important than the total wattage of the PSU for a gaming system.

    You need to know if the 12v rail has enough wattage for the card. Look at the sticker on the side of the PSU for the per-rail ratings. You're looking for something like +12v- the XXa, which is 12 volts @ XX amps. multiply the voltage by the amperage to get the wattage, and compare that to the power your card draws under load.


    This is the psu i have
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045

    it says dual 12V rails
  6. It's a pretty good deal.

    CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($99.99 @ Microcenter)
    Motherboard: MSI H61M-P23 (B3) Micro ATX LGA1155 Motherboard ($64.99 @ Amazon)
    Memory: G.Skill NS 4GB (2 x 2GB) DDR3-1333 Memory ($22.99 @ Newegg)
    Hard Drive: Western Digital Caviar Blue 250GB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Newegg)
    Optical Drive: Lite-On iHAS324-99 DVD/CD Writer ($19.99 @ Newegg)
    Total: $277.95

    Not knowing the exact parts this is just a guess but it should be in the ballpark.
  7. Best answer
    You're good to go on the PSU.

    30Amps +12V better than average budget PSU.
  8. WR2 said:
    It's a pretty good deal.

    CPU: Intel Core i3-2100 3.1GHz Dual-Core Processor ($99.99 @ Microcenter)
    Motherboard: MSI H61M-P23 (B3) Micro ATX LGA1155 Motherboard ($64.99 @ Amazon)
    Memory: G.Skill NS 4GB (2 x 2GB) DDR3-1333 Memory ($22.99 @ Newegg)
    Hard Drive: Western Digital Caviar Blue 250GB 3.5" 7200RPM Internal Hard Drive ($69.99 @ Newegg)
    Optical Drive: Lite-On iHAS324-99 DVD/CD Writer ($19.99 @ Newegg)
    Total: $277.95

    Not knowing the exact parts this is just a guess but it should be in the ballpark.


    oh this is the board http://www.newegg.com/Product/Product.aspx?Item=N82E16813130583

    and kingston hyper x ram.
  9. oh and plus the saphire vapor 4850 i got with it too. :)
  10. WR2 said:
    You're good to go on the PSU.
    http://images17.newegg.com/is/image/newegg/17-371-045-Z05?$S640$
    30Amps +12V better than average budget PSU.


    Nice thanks so much!! just wanted to make sure. dont want to under power my components.
  11. Those parts would add a few extra bucks to the overall cost.

    I'm guessing nearly all the parts were used?
    It's probably a 'fair price' @ $280.
  12. WR2 said:
    Those parts would add a few extra bucks to the overall cost.

    I'm guessing nearly all the parts were used?
    It's probably a 'fair price' @ $280.


    Sorry to bring this back to life, but if i were to purchase a radeon 6870 would this psu still be ok with this build? jjust checking
  13. Yes it would.
    That PSU would support all the part's you're looking at.
  14. WR2 said:
    Yes it would.
    That PSU would support all the part's you're looking at.


    So even with a radeon 6870 instead of the 4850 GPU?
  15. Even with the HD 6870.

    Sapphire Radeon HD 6870 website
    The recommendation for a 500W PSU covers a wide range of systems and quality/performance of PSUs. Although the Antec is just 450W it's a quality PSU that can outperform some budgety 500W PSUs.
  16. WR2 said:
    Even with the HD 6870.

    Sapphire Radeon HD 6870 website
    The recommendation for a 500W PSU covers a wide range of systems and quality/performance of PSUs. Although the Antec is just 450W it's a quality PSU that can outperform some budgety 500W PSUs.


    thanks appreciate your help greatly.!
  17. Best answer selected by k1ngkev1n1.
  18. Your welcome. Stop back if you have any more questions.
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