Windows 8 and 8.1 Forums


ATI Radeon HD 5450 on a 300 Watt PSU

  1. #1


    Posts : 23
    Windows 8.1 Core X64

    ATI Radeon HD 5450 on a 300 Watt PSU


    Hey Guys

    I bought myself a a graphics card which is an ATI Radeon HD 5450.

    The problem is it's got a a 350 watt minimum requirement on the box and i only have a 300 watt PSU

    What will happen if i install the graphics card in my PC with only a 300 watt PSU

    The PSU is made by Bestec and i'm running this in an HP-T775.UK

    Thanks for all answers

      My System SpecsSystem Spec

  2. #2


    Posts : 103
    Windows 8.1 64 Bit


    You should look at 12V Amps, but that card is very low power (50 W max) so unless you have much stuff or that PSU is very old it may be fine.
      My System SpecsSystem Spec

  3. #3


    Posts : 23
    Windows 8.1 Core X64


    Ahh I think the PSU is quite old as well as having a lot of stuff. I got the processor, 3X1 GB modules as well as the 7200RPM SATA HDD and all 4 of my PCI cards are taken up with WIfi with other bits though I will have to swap the GPU around as the current one is a Radeon X550 which will be replaced for the Radeon HD 5450
      My System SpecsSystem Spec

  4. #4


    Posts : 23
    Windows 8.1 Core X64


    So I decided to try it and I have not played game with it yet but with all the other hardware it seems to be working fine on the 300 W PSU
      My System SpecsSystem Spec

  5. #5


    If you start to see some lagging and sluggishness or monitor flickering on and off then you will know. My advice would be to get a new PSU and soon, there is a chance of causing some damage to GPU, CPU and the rest of the system, not likely but possible. I wouldn't want to take that chance.
      My System SpecsSystem Spec

  6. #6


    Posts : 103
    Windows 8.1 64 Bit


    Quote Originally Posted by robc133 View Post
    Ahh I think the PSU is quite old as well as having a lot of stuff. I got the processor, 3X1 GB modules as well as the 7200RPM SATA HDD and all 4 of my PCI cards are taken up with WIfi with other bits though I will have to swap the GPU around as the current one is a Radeon X550 which will be replaced for the Radeon HD 5450
    Try with furmark or some demanding game, if you see artifacts, slowdowns, strange noise coming up from the PSU, or the computre shuts down, reboots, or freezes or bsods, then the PSU is overloaded and you should upgrade it to avoid damage to your computer components.
    Last edited by derek10; 04 Feb 2013 at 11:01.
      My System SpecsSystem Spec

ATI Radeon HD 5450 on a 300 Watt PSU
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