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Power supply not turning on after installing new motherboard

Hi, i recently installed a new motherboard (the MSI 97A-G46) with a 500 watt power supply i think ive plugged everything in properly but the power supply isnt even turning on and i dont think its got anything to do with the new motherboard

UPDATE- the power supply is a modxstream pro 500watt
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  1. Please provide the rest of your specs. What is the brand and model of the "500W" PSU? Have you tried the paperclip test on it?
  2. Best answer
    check these
    Your power supply is properly connected to your motherboard
    Your CPU is properly installed along with the CPU cooling source (fan)
    Sounds like your RAM is properly inserted or your motherboard would be 'beeping' at you if you have the CMOS speaker plugged in
    Video card is properly inserted (you might want to check the video card in another PC to ensure it works)
    Unplug all other components (floppy, CD/DVD drive, RAID cards, use only 1 HDD and then boot)
  3. Onus said:
    Please provide the rest of your specs. What is the brand and model of the "500W" PSU? Have you tried the paperclip test on it?

    I've updated the post and I'm fairly new so i don't know what a paperclip test is
  4. Im_legend said:
    check these
    Your power supply is properly connected to your motherboard
    Your CPU is properly installed along with the CPU cooling source (fan)
    Sounds like your RAM is properly inserted or your motherboard would be 'beeping' at you if you have the CMOS speaker plugged in
    Video card is properly inserted (you might want to check the video card in another PC to ensure it works)
    Unplug all other components (floppy, CD/DVD drive, RAID cards, use only 1 HDD and then boot)

    I've tried most of these but I haven't applied thermal paste to my CPU yet and I don't have another PC to check the gpu.
  5. You must install the CPU's HSF before powering on! You risk severe damage if you do not, although hopefully it would have shut down quickly enough.
  6. Onus said:
    You must install the CPU's HSF before powering on! You risk severe damage if you do not, although hopefully it would have shut down quickly enough.

    Well it doesn't even turn on in the first place
  7. It turns out that i had a few wires disconnected so i plugged them in a put some thermal paste on the cpu it works fine now, thanks for your answers
  8. best answer?
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