Problems with power supply and motherboard compatibility appear to be common.
- My power supply/motherboard nightmare
- Power Supply Too Big?
- Can a +5VSB supply rail value of 5.4V prevent a PC from starting
- Understanding why a 450W power supply is destroying my ATX motherboards but not mATX
- Motherboard and power supply compatibility
- Computer Power Supplies are not working anymore
Are there any computer components that could be placed somewhere
between the PSU and wall outlet to minimize the chance that the
power supply will blow the motherboard and vice versa? For example, would a surge protector, redundant power supply, or uninterrupted power supply be of any use here?
Suppose you disconnect your machine's motherboard from its current PSU and then connect it to a new PSU that supplies a lot more power. What can you do to make sure that your motherboard doesn't get damaged by the new PSU or fail to power on?
Best Answer
That's not how electricity works. The nominal power is the maximum amount of power PSU is able to deliver. It's not the PSU that delivers constant amount of power, it's other components that draw power from it.
At any time your hardware will receive as much power as much is required, unless it's more than PSU's nominal power, in which case something will fail. Connecting your MoBo to a new PSU with higher nominal power won't cause computer to draw more power.
The best way of preventing PSU-related failures is not being cheap and buying a sound PSU.