Actually somepeople posting that overWATT would kill other parts. Do you really think about. Every circuit have resistors so the amount power will reduced to optimum level. Lets say i am using Intel P4, 1GB ram, 80 gb hdd and AGP ati 3450hd. I can use 800W PSU. NO problem. My bill cost has not increased.
Amount of PSU watt needed
- Thread starter prithive
- Start date
A computer will only use as much wattage as it needs. There is no such thing as a power supply over powering your system. The only time you would need an 800 watt power supply would be if you were running 2 high end video cards together. In your case, a corsair cx430 would be fine.
Tinglebelly
New Member
800w would be too much for your build actually. 500w would be more than enough
DCIScouts
VIP Member
The main reasons why you don't want to get too high of a PSU is because you're paying more money for the unit up front, and furthermore, PSU's efficiency is based off of a bell curve. You get too far off the sweet spot (most are around 80% load), then the PSU isn't as efficient and it costs more in the electrical bill to run the computer. (you may not even notice the difference on your bill, but there is a difference...)
For example, a similar quality 400W PSU will run a 300W load more efficiently than the same quality 800W PSU. Again, you may be talking about a few bucks a month, but there is a difference.
As for "overwatting" your components, you can't do that. But, if you hook the components up to the wrong connections, or you've got stuff that is drawing too much on the same rail you can overamp/underamp the components and that is where some damage can occur.
For example, a similar quality 400W PSU will run a 300W load more efficiently than the same quality 800W PSU. Again, you may be talking about a few bucks a month, but there is a difference.
As for "overwatting" your components, you can't do that. But, if you hook the components up to the wrong connections, or you've got stuff that is drawing too much on the same rail you can overamp/underamp the components and that is where some damage can occur.
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