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My Overkill PSU

post #1 of 17
Thread Starter 
Okay so my sig rig was my first PC build and as such my power supply is EXTREMELY overkill. Besides the power bill, does having a PSU this overkill have any drawbacks? Does it produce more heat than say a 650 Watt PSU running in the same system? Or is it better to have an overkill PSU? Just interested in people's ideas/opinions on if it is a good or bad thing and why.
- Thanks
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post #2 of 17
Quote:
Originally Posted by Born For TDM View Post

Okay so my sig rig was my first PC build and as such my power supply is EXTREMELY overkill. Besides the power bill, does having a PSU this overkill have any drawbacks? Does it produce more heat than say a 650 Watt PSU running in the same system? Or is it better to have an overkill PSU? Just interested in people's ideas/opinions on if it is a good or bad thing and why.
- Thanks

 

PSU have always a lose of 5% efficiency per year (Don´t know the real amount, just to say an example), and no, I don´t think there can be a real problem, just that It will last longer than other PSU imagine after 5 years it draws 850w, and your PSU has a 7 year warranty so I think there´s no problem at all!

 

It doesn´t produce more heat, maybe a light coil whine becouse the the PSU transforms a lot of energy and send it back to the wall cable

 

And, what made you wanted to buy a 1050W PSU for a 450-500W system? 

post #3 of 17
Thread Starter 
This was my first build and I actually had no idea of "overclock.net" until after i completed the build about 1/2 a year ago. I was under the mindset of bigger is better haha.
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post #4 of 17
Quote:
Originally Posted by Born For TDM View Post

This was my first build and I actually had no idea of "overclock.net" until after i completed the build about 1/2 a year ago. I was under the mindset of bigger is better haha.

 

By the way, nice rig!, and don´t worry about your PSU, It´s a great quality one with a very long warranty time.

post #5 of 17
The watts set the upper limit. Not the lower limit. It's like having redundant wattage. Probably unusable depending on future changes.
post #6 of 17
Thread Starter 
Quote:
Originally Posted by danilon62 View Post

By the way, nice rig!, and don´t worry about your PSU, It´s a great quality one with a very long warranty time.
Thanks
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post #7 of 17
Since nobody has pointed it out, a power supply sees lower efficiency the farther you get from it's maximum output.

If you have a 250 watt draw on a kw psu... you will be wasting a ton of electricity compared to running a 300w unit on the same rig.
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post #8 of 17
Thread Starter 
Quote:
Originally Posted by Masta Squidge View Post

Since nobody has pointed it out, a power supply sees lower efficiency the farther you get from it's maximum output.

If you have a 250 watt draw on a kw psu... you will be wasting a ton of electricity compared to running a 300w unit on the same rig.
Sorry if this is obvious, but would this mean more heat is generated or simply a higher electric bill? I always figured a PSU would only draw what the rig demands?
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Blackstar
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post #9 of 17
Quote:
Originally Posted by Born For TDM View Post

Sorry if this is obvious, but would this mean more heat is generated or simply a higher electric bill? I always figured a PSU would only draw what the rig demands?
Efficiency means you are drawing more power than you are using.

The only way to make more heat, is to waste more power. So the answer is both.
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post #10 of 17
Thread Starter 
Quote:
Originally Posted by Masta Squidge View Post

Efficiency means you are drawing more power than you are using.

The only way to make more heat, is to waste more power. So the answer is both.

Someone in my household could use a 1000 watt + PSU, so would I see a difference in heat/efficiency switching to a good 650 watt?
- thanks
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Blackstar
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Western Digital Caviar Black Samsung 840 Corsair H100i Windows 8 Pro 
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