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Larger PSU Better???

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  • Power Supplies
  • Computer
  • CPUs
  • Components
Last response: in Components
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June 18, 2006 8:41:44 PM

I have a 350 watt PSU and a friend blew up his mobo and cpu so he gave me his 450 PSU. My computer (P4 3000) runs ok as it is but would the computer benefit any if I put in the 450 PSU? Neither of the PSU's are high end just your normal ones that come with computers. My 350 PSU is 2 years old and his is brand new.

More about : larger psu

June 18, 2006 8:45:42 PM

nope. u can stick a 1000w PSU ur PC will still be slow.
June 18, 2006 8:59:49 PM

Ummmmmmm....?? Why do you assume my computer is slow?
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June 18, 2006 9:07:03 PM

Quote:
Ummmmmmm....?? Why do you assume my computer is slow?

Because it's a P4 3000.

Ipso Facto: That's slow. ;) 
June 18, 2006 9:14:01 PM

Quote:
Ummmmmmm....?? Why do you assume my computer is slow?

Because it's a P4 3000.

Ipso Facto: That's slow. ;) 

ty, also its socket 478
June 18, 2006 9:17:46 PM

the comp isn't "slow" by any means, and what you have to take a watch on when it comes to powersupply's isn't overall wattage as much as how many amps it gives to the +12 v rail.

more is better, i fried a 500w ps that only had 19 amps on the 12 volt, the new one has 32 amps and everything is solid.

Valis
June 18, 2006 10:58:58 PM

more is most certainly not better.


if your system runs fine on 200w good 500w wont make a difference
June 19, 2006 1:08:47 AM

Hi Valis

I just checked both PSU's and mine is 350 Watt with 15 amp and the 450 watt one only has 13 amp. I guess it would not make any sense to do a switch but the 450 watt could be a good replacement if needed. On the high end PSUs what is the advantage besides the PSU not taking out the internal components with it if it blows.
June 19, 2006 2:41:36 AM

Quote:
Hi Valis

I just checked both PSU's and mine is 350 Watt with 15 amp and the 450 watt one only has 13 amp. I guess it would not make any sense to do a switch but the 450 watt could be a good replacement if needed. On the high end PSUs what is the advantage besides the PSU not taking out the internal components with it if it blows.


i'd stick with what you have and keep the other around as a spare, if you're not noticing any strange lockups or problems (which can be caused by inadequate power) then i would leave it as is and not worry about ps unless you're going to do some upgrading.
a b ) Power supply
a c 487 à CPUs
June 19, 2006 2:54:43 AM

Quote:

i'd stick with what you have and keep the other around as a spare, if you're not noticing any strange lockups or problems (which can be caused by inadequate power) then i would leave it as is and not worry about ps unless you're going to do some upgrading.


Good advice. Why go through the chore of replacing your current PSU if you don't need the power? Tape it up in a small plastic garbage bag an put it somewhere for safe storage.

When you decide to upgrade your PC and if you need more power, then break out the 450w PSU.
June 19, 2006 3:10:51 AM

yup. that would be the Ideal idea.
June 19, 2006 3:18:12 AM

Quote:
I have a 350 watt PSU and a friend blew up his mobo and cpu so he gave me his 450 PSU. My computer (P4 3000) runs ok as it is but would the computer benefit any if I put in the 450 PSU? Neither of the PSU's are high end just your normal ones that come with computers. My 350 PSU is 2 years old and his is brand new.


There's only one good reason for the bigger power supply; if you're adding graphics cards or something else that demands more power. Other than that, you're only making the power companies and parts companies richer. If your present PSU does the job without complaint, keep it.
June 19, 2006 3:47:49 AM

Basically, if it isn't broke, don't fix it
June 28, 2006 11:30:56 AM

Quote:
mine is 350 Watt with 15 amp and the 450 watt one only has 13 amp.
I've never heard of a 450W PC supply rated for only 13A, unless it had multiple +12V outputs (not wires). Even very old supplies designed for high +5V power had a higher +12V rating.

What brands are your 350W and 450W supplies? Some 450Ws can't output as much as some 350Ws or even some 250Ws.
June 28, 2006 6:47:05 PM

Quote:
mine is 350 Watt with 15 amp and the 450 watt one only has 13 amp.
I've never heard of a 450W PC supply rated for only 13A, unless it had multiple +12V outputs (not wires). Even very old supplies designed for high +5V power had a higher +12V rating.

What brands are your 350W and 450W supplies? Some 450Ws can't output as much as some 350Ws or even some 250Ws.


no it just depends on how good the PSU in, some ie Antec 350w PSU's are better than logisys 500w
!