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New PSU?

  • 08-02-2021 8:08pm
    #1
    LandonRicketts
    Registered Users, Registered Users 2 Posts: 398 ✭✭


    Hey all,

    Not sure if this is the best place to put this but my gaming PC is currently in a spot of bother. For the past two weeks it's been randomly restarting. No freezes, just a random reboot to the bios. At first I thought it was the SSD failing so I installed Windows on a new hard drive and the same thing is happening.

    I think it might be the power supply as for a while there was a loud noise coming from it on boot up.

    My current PSU is a bequiet System Power 7 600w. Can I just get any PSU that is between 600-650W? I don't think it was a modular PSU but does that matter if the new one is?


Comments

  • #2
    minitrue
    Registered Users, Registered Users 2 Posts: 765 ✭✭✭minitrue


    If that 600W was ok then any good 600W or higher should be fine also. I say good because the very cheap ones essentially lie and don't deliver what they promise. Without knowing what's inside your system nobody can guess just how much you really need. https://linustechtips.com/topic/1116640-psucultists-psu-tier-list/ can help you work out if a psu is garbage and I'd generally say ignore anything if it isn't listed there.


  • #3
    LandonRicketts
    Registered Users, Registered Users 2 Posts: 398 ✭✭LandonRicketts


    minitrue wrote: »
    If that 600W was ok then any good 600W or higher should be fine also. I say good because the very cheap ones essentially lie and don't deliver what they promise. Without knowing what's inside your system nobody can guess just how much you really need. https://linustechtips.com/topic/1116640-psucultists-psu-tier-list/ can help you work out if a psu is garbage and I'd generally say ignore anything if it isn't listed there.

    Thanks for the reply. no it was working fine up until recently since I got the gaming pc in 2015


  • #4
    SeanW
    Registered Users, Registered Users 2 Posts: 9,169 ✭✭✭SeanW


    Hi,

    First of all, to determine what wattage of PSU you should have, go to the Outervision PSU calculator, enter your computer specs and usage, get their recommended wattage, then go a bit over again.

    https://outervision.com/power-supply-calculator

    Then you'll want to consider what level of energy efficiency you want, (80+ Bronze and 80+ Gold are the most common standards). I suggest the Seasonic brand.

    As to modular power supplies, this refers to whether the cables from the PSU are hard wired to run from the PSU or whether they are connected via cables that you can connect or remove as needed. How much you need if any depends on your case - if you for example have a small or windowed case, then the ability to control how (and how many) cables are connected from the PSU to the rest of your system will have value. But if you have big, non-windowed case and stuffing a few more cables in would not cause issues with for example air flow, then modularity is something you might not need.
    There are, generally speaking 3 levels:
    1. Non-Modular: simply put, all the connections offered by the PSU are hard wired from it. You cannot remove any cables.
    2. Semi-modular (or similar terminology): this generally means that cables from the PSU for the 24 pin ATX connection and at least one 8 pin connection for the CPU are hard wired from the PSU and cannot be disconnected. But all the other connectors, extra 8 pin CPU, 6/8 pin PCI-Express power, SATA, Molex and anything else, come in the form of separate cables that you can plug into the back of the PSU if you need to power components with them.
    3. Fully modular: All connectors, including ATX 24 pin and the first CPU 8 pin, have ports on the PSU that you can connect via cables to the components.
    As you can imagine, a modular PSU is rarely something that you absolutely must have, generally if you make a mistake in specifying the degree of modularity the consequences will be limited to either more cable clutter in your case or a waste of maybe €10.


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