If I replace a 250 Watt Power supply with a 300 Watt one, will I blow up my motherboard?

Please help!!

I have a desktop Compaq Presario with 4GB RAM (purchased in 4/2010) that is running Windows 7. If I replace the 250 Watt Power supply with a 300 Watt one, will I blow up my motherboard? I have a laptop running Windows 8.1 and it does not have the programs I need (Movie Maker, DVD Maker, etc), so I need to keep this one as long as I can.
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More about replace 250 watt power supply 300 watt blow motherboard
  1. You can use as large a PSU as you like. The device will only draw what it needs.
  2. I would suggest you upgrade to at least a 400-450watt PSU (assuming you can buy a standard size PSU) you should be able to fine a quality one for under $60.
  3. ikaz said:
    I would suggest you upgrade to at least a 400-450watt PSU (assuming you can buy a standard size PSU) you should be able to fine a quality one for under $60.


    Would would he need one that large, a 300w unit would be sufficient. OP never started they were upgrading components.
  4. no but the prices are so close I see PSU on sale for about $30-40 that are rated at 400+ watt.
  5. Thank you everyone. I've never had to replace a power supply before, so I wasn't sure if it was ok to upgrade the PSU to 300 Watts or more.
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