What happens when PSU is too small?

What happens when your power supply doesn't have enough power to run all your components?

Just curious if this is why my screen blinks when playing high quality video.

http://forumz.tomshardware.com/hardware/card-screen-blinks-video-load-ftopict204445.html
7 answers Last reply
More about what small
  1. If the power supply isn't big enough the computer would prolly just crash and shutdown. Lost of freezing and other unexplained problems will occur to if it's not big enough.
  2. Quote:
    What happens when your power supply doesn't have enough power to run all your components?


    BOOM!
  3. well tell us some of your components and your power supply and we could probably give you an idea whether or not you are overloading your psu, also get a motherboard monitor for your system and check the voltages, if you are overloading the voltages will be on the low side from lack of power or on the really high side due to regulator malfunction from overloading.
  4. This graphics card is overclocked by the factory, I didn't do it.
    http://www.bestbuy.com/site/olspage.jsp?skuId=7048795&type=product&id=1108124982622

    Here's my pc specs and stuff
    dell dimension 8200
    2ghz P4, 1gb rdram (the expensive type ram)
    73gb 10k raptor hdd, sata host controller card
    external maxtor backup hdd, usb


    3 19" monitors
    PSU 250w (factory original)

    bfg nvidia 6200 OC, agp 256mb ddr (requires minimum 250w)
    with 2 monitors connected, one dvi and one vga

    nvidia geforce mx 4000, pci 128mb ddr
    with 1 monitor just for my business emails, nothing special


    Here's what happens, when viewing video on either of the 2 monitors connected to the 6200 card then the dvi connected main monitor randomly blinks. Only the main monitor blinks which is strange. When the same video is moved to the monitor on the mx4000 card then the blinking stops.

    So wonder what the deal is?

    (edit) oh also, I only have 1 dvi port to connect to and the main monitor is the best one I have so there's not many options as far as rearranging my setup other than buying new stuff.
  5. Yeah you're right, it's time to get a new computer.

    I can't figure out which is better for my needs though,
    Dual Core Intel Xeon Processor
    -or-
    Intel Core2 Duo Processor

    I work on the internet and use photoshop, dreamweaver and other web developing tools all day across these 3 monitors.
  6. Quote:
    Yeah you're right, it's time to get a new computer.

    I can't figure out which is better for my needs though,
    Dual Core Intel Xeon Processor
    -or-
    Intel Core2 Duo Processor

    I work on the internet and use photoshop, dreamweaver and other web developing tools all day across these 3 monitors.


    If you were using more cad-cam autocad/engineering style work, I might possibly recommend a workstation class machine with the Xeons. Mainly because you can get machines with dual xeons.

    But for the vast majority of users, they will be more than satisfied with the C2D.
  7. Thanks. You guys have been very helpful.
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