Power Supplies

Discussion in 'General Hardware' started by vern, Oct 28, 2003.

  1. vern

    vern Dominus Political User Folding Team

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    I have an ATX case but without a PS. Will I be able to put any ATX PS in it? I've seen power supplies online that say "for P3" or "for P4" ... does it matter?
     
  2. sammy5gs

    sammy5gs Ignorance Defined

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    The short answer would be yes. However, what you should be looking at is based on your CPU, and other components you will have in your rig to determine watts/voltage rails. I highly recommend Antec fans, and pick the wattage/voltage based on your components.
     
  3. Reg

    Reg eXperienced!

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    I say that you should stick with a 300W minimum (for most users). If you are going to have a lot of devices, especially CD and DVD burners, I suggest a minimum of 400W.
     
  4. ming

    ming OSNN Advanced

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    350W if you're only using 1 x HD; 1 x CDRW, 1 x DVD. Get a PSU with more W if you're thinking of adding more than the above components.

    Some Thermaltake PSUs have what's called an Active PFC to stabalise the delivery of electricity to the motherboard (for protection).
     
  5. vern

    vern Dominus Political User Folding Team

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    This is for an old system. 1ghz P3, 256mb pc133 sdram, tnt2 32mb, 30 gig HD. I'm going to get FreeBSD up and running so I can use it as a router/firewall. It's going to have minimal of everything ... not even a CD-ROM. I'm using a KVM to switch between this box and my Windows box.

    I was just thinking of a 200+ watt generic PS ... will this be sufficient?
     
  6. LeeJend

    LeeJend Moderator

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    A 300W generic is $20 or less on sale, 200W is too risky. The total wattage mightbut the amperage on the 5V output may be too low. Almost everythng is using 5V only now.

    If the 5V amperage is high enough (>22) and you don't need the extra P4 connector then any ATX supply will work.
     
  7. vern

    vern Dominus Political User Folding Team

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    I guess I'll go for a 300+ watt generic PS then. Thanks for everyone's help.
     
  8. At the moment Im using a 300W with:
    2 x HDD
    1 x DVD-ROM
    1 x CD-RW
    3 x Blue LED Case fans
    1 x Sound activated cold cathode tube

    And all is fine.

    But I have got a gold 550W Qtec PSU Im awaiting delivery for - its got dual fan :)
     
  9. Skwowwy

    Skwowwy Guest

    Surprise surprise...

    On 250 Watt I have:

    - 1 DVD-ROM
    - 1 CD-RW
    - 1 Floppy drive
    - 2 HDDs
    - 4 fans

    And on the motherboard itself:
    - GeForce4 MX440 AGP 8x
    - PCI HD Controller
    - Network card
    - All the default stuff, like CPU, etc.

    And everything's running smoothly. :p I've even tried attaching 3 HDDs, and that even worked too. Just too bad one of these HDDs is damaged with a scratch on one of the plates, otherwise I'd have been using 3 HDDs instead of 2. >_o The broken HDD is 60 GB. :p
     
  10. ming

    ming OSNN Advanced

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    I think it is safe to say that with a system under 1GHz, it is pushing a PSU towards its limit.
    My 1GHz system with similar components blew my 250W PSU just by adding a 2nd HD to the system.
     
  11. Skwowwy

    Skwowwy Guest

    I guess so. I mean, AMD Duron 800 MHz isn't that power hungry. Let alone all other systems with CPUs clocked lower than 1 GHz.

    I am just wondering when the PSU will finally give up if I add more components to the system. :p