Edit - Super User

You are not logged in. Your edit will be placed in a queue until it is peer reviewed.

We welcome edits that make the post easier to understand and more valuable for readers. Because community members review edits, please try to make the post substantially better than how you found it, for example, by fixing grammar or adding additional resources and hyperlinks.

Rev

3

Another point to keep in mind with PSU sizing is that there is no real upper limit to the "right" size of PSU for a given system. Using a smaller percentage of the available wattage from a quality PSU will result in better quality power, less strain and wear on the PSU components, better system stability, and, importantly, NOT an increased power drain. A 1500W PSU will only draw the watts required by the system, not all 1500W.
– music2myear
Commented Feb 13 at 18:13
3

@music2myear It should perhaps be taken into account that the maximum efficiency of a ATX PSU is usually at about 50% of maximum rated load, so a 1500 W PSU may well use more power ($) than a 500 W PSU for a 250 W load. And it'll be heavier, larger, and cost more.
– Andrew Morton
Commented Feb 13 at 19:38
"equipment could be harmed if the power supply would try to supply too much current" - You have it backwards. Study Ohm's Law. A PSU only provides the amount of current that the load asks for. That's why it's also called current draw or current demand (by the circuit load). There's no such thing as a "current forced into the circuit". There would already be somekind of an equipment failure prior to cause a PSU to deliver more current and possibly blow fuses. A "burn out" PSU is likely just blown fuses.
– sawdust
Commented Feb 14 at 6:13
@sawdust I understand completely... I wasn't implying it was "pushing" current, because that obviously isn't the case... Thank you for clarifying as I can see what I said could be seen as unclear.
– acejavelin
Commented Feb 15 at 20:59

Add a comment |

Correct minor typos or mistakes
Clarify meaning without changing it
Add related resources or links
Always respect the author’s intent
Don’t use edits to reply to the author

create code fences with backticks ` or tildes ~
```
like so
```
add language identifier to highlight code
```python
def function(foo):
print(foo)
```
put returns between paragraphs
for linebreak add 2 spaces at end
_italic_ or **bold**
indent code by 4 spaces
backtick escapes `like _so_`
quote by placing > at start of line
to make links (use https whenever possible)
<https://example.com>
[example](https://example.com)
<a href="https://example.com">example</a>

formatting help »
answering help »