question about power supply

B

bigl2007

New Member
if i overclock my cpu does this mean i will use up more power and if my computer goes over the watt range will my power supply draw extra power and overheat and give out or will it last the test of time anyhow

my graphics card requires a 500 watt power supply and the power supply im getting is 550 watts

my real question is what happens if you have too weak a power supply to power your system will it work or will the psu overheat and burn out?
 
Yes, overclocking will draw more power, but not a tremendous amount more.

Video card rating are highly over-rated. I bet with whatever video card you're getting, a good 450 or even 400 watt would work. Your amps on the 12v rail mean much more than the wattage.
 
When you OC and run a high end video card you actually draw on the amperage not the watts. If you should pull too amperage or the supply is unstable you are more likely to sudden restarts and shutdowns. Only a cheap supply will quit fast when you place a good load on it. The video card requiring a 500w is a total fantasy there.
 
Wattage and amperage are related so really you are drawing both. Video card ratings are listed higher than they need to be because of all the cheap crappy PSUs out there.
 
Oh there are certainly a good number of 500w supplies for less then $40! I expect to hear snap, crackle, and pop from the cheapo caps they throw in as well. boom... poom... twang.., zzssssss...pop! :eek: I like the larger ones that come with the heavy duty supplies. Kaboommmm..! :P I've seen the ones immediately surrounding the transformer go up in smoke enough times when going to test a supply. Fortunately the smaller ones always seem to vaporize.
 
hehe... what i tell you will completely flush the little bit of respect you guys may have had of my computer knowledge.. but im still running my system with a 30 euro Power supply ( LC6550 550W PSU with 24Amp on the +12v rail) :D

This PSU is the perfect example of a good cheap PSU, its bloody stable, and pretty strong. the only downside it has.. it has lots of power where its not needed (+5v and +3.3v) but relatively few power where its needed (24Amp on the +12V rail)
nevertheless... I havnt had random restarts yet,.. But since i got the 4800+ CPU,.. my PSU smell's a bit when under full load (CPU + GPU's)... but thats because this PSU doesnt have an over-power protection.. so if you drain too much.. it'll burn out. :o

I know.. I know... not very smart.. but hey,.. my new PSU should be on its way by now :D
 
Cromewell said:
Wattage and amperage are related so really you are drawing both. Video card ratings are listed higher than they need to be because of all the cheap crappy PSUs out there.
Click to expand...

Actualy you divide wattage by voltage to find the amperage. Of course video cards are rated higher then they need to be. Everybody buys into it! :confused: can't help it! they saw you coming! :P

Archangel said:
hehe... what i tell you will completely flush the little bit of respect you guys may have had of my computer knowledge.. but im still running my system with a 30 euro Power supply ( LC6550 550W PSU with 24Amp on the +12v rail) :D

This PSU is the perfect example of a good cheap PSU, its bloody stable, and pretty strong. the only downside it has.. it has lots of power where its not needed (+5v and +3.3v) but relatively few power where its needed (24Amp on the +12V rail)
nevertheless... I havnt had random restarts yet,.. But since i got the 4800+ CPU,.. my PSU smell's a bit when under full load (CPU + GPU's)... but thats because this PSU doesnt have an over-power protection.. so if you drain too much.. it'll burn out. :o

I know.. I know... not very smart.. but hey,.. my new PSU should be on its way by now :D
Click to expand...

We weren't specifically talking about low cost supplies but "Cheaply Made" disasters waiting for an accident to happen. "my psu is smoking! :( " Now if something shorts directly then your hardwares could end up being TOAST! :eek: ! That's why it pays to pay a little more sometimes to get something that will last not cook.
 
Actualy you divide wattage by voltage to find the amperage.
Click to expand...
That is only 1 formula for wattage. But are you telling me that dividing the wattage by voltage to get amperage means they aren't related?;)
 
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