Is it possible to have TOO much power in a computer power supply?

Question

I wanna get a new graphics card and i think i may need a new power supply is it possible to buy a power supply that is too big that will make my motherboard die?

Answer 1

Too high a Wattage (Watts) rating? No, you can't overdo it. As long as it fits in your case, and is otherwise compatible with your computer.



A high wattage rating in the power supply is like using an oversized chain to tow a car. It may be more than you need, but it won't hurt.

Answer 2

Like just about everyone else...no.

A large power supply will only release the amount of power that the computer needs, and nothing more.

In fact, having a larger more powerful PSU is better.

- System will run cooler overall due to the PSU not being stressed.

- Gives more room for future updates.

- Can be more efficient due to the load not being overbearing.



Although, do this within reason. No need to buy a 1.2 kilowatt power supply if all you have is a mid-range processor, one mid-range graphics card, one optical drive, one hard drive, and maybe a discrete sound card.



At this point in time...if you are a just a mainstream computer user 650-750 watts is good enough. 750 will give you more than enough breathing room.

750-850 watts for an enthusiast gamer

900+ "Goin' critical HARDKORE!!"

Answer 3

No its not possible to have too much. The psu will only draw the watts required and no more. So you could have a whopping 1200 Watt PSU, but if your rig only needs 600 Watts, it pulls only 600 Watts. There is a regulator in the psu that acts like a governor and prevents more watts from being expended than is needed.

Answer 4

I do not believe so, you just need to check your manual to double check, but most of the time if you have an ATX Motherboard you can use any size ATX Power supply.

Answer 5

No, I've never heard of such a thing occurring. Using a PSU that just barely meets the demands of your computer is bad and will eventually kill your PSU. You probably knew that already... Goodluck

Answer 6

The only thing it might hurt is your wallet.



Both for the initial purchase price, and possibly being less efficient at low demand levels.

Answer 7

if your still not sure on what to do

then go to your local computer store and get them to look at it and fix it for you