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post #1 of 15
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So i feel bad for this question am gonna ask becuause in uni am doing electrical engineering for 2 years.

my laptop power supply has ouptut power 19volt and 6.3amps. I change country and i forgot my power supply home and i put a 19volt with 3.2amps and my laptop powered fine but after 3 minutes whent off. what really amps do? also i would be able to buy power supply with more amps than 6.3 and maybe overclock my cpu and ati card more? because for example i cant flash my ati card more than 1.15.v and its because of my powersupply but dont know if its because volts or amps

thanks and i hope to get my answer i want
am gonna rep!
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post #2 of 15
Voltage is how hard the electricity is pushing.
Amps is a measure of how fast it is flowing.

Power = Volts * Amps

Therefore, if you only have a 3.2 A power supply, when the laptop demands 6A it will fail as the power supply is not big enough (and not able to supply enough power).

When you do get a bigger powersupply, it should still be 19V, just more amps.
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by charliehorse55 View Post
Voltage is how hard the electricity is pushing.
Amps is a measure of how fast it is flowing.

Power = Volts * Amps

Therefore, if you only have a 3.2 A power supply, when the laptop demands 6A it will fail as the power supply is not big enough (and not able to supply enough power).

When you do get a bigger powersupply, it should still be 19V, just more amps.
thx i know all these stuff but what if am going to use more amps than 6.3 which is the stock? burn something or volts do thats job?
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post #4 of 15
You have been going to a university for 2 years in an electrical engineering program and you couldn't answer that question for yourself?

What country are you from?
post #5 of 15
Thread Starter 
Quote:
Originally Posted by Segovax View Post
You have been going to a university for 2 years in an electrical engineering program and you couldn't answer that question for yourself?

What country are you from?
read what i said in the previous question and then judge. unfortunately tutors are not teaching us if we use more amps we will be able to overclock our computers more...

if yours do answer my question and i will rep u
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post #6 of 15
Quote:
Originally Posted by lenarass20 View Post
So i feel bad for this question am gonna ask becuause in uni am doing electrical engineering for 2 years.

my laptop power supply has ouptut power 19volt and 6.3amps. I change country and i forgot my power supply home and i put a 19volt with 3.2amps and my laptop powered fine but after 3 minutes whent off. what really amps do? also i would be able to buy power supply with more amps than 6.3 and maybe overclock my cpu and ati card more? because for example i cant flash my ati card more than 1.15.v and its because of my powersupply but dont know if its because volts or amps

thanks and i hope to get my answer i want
am gonna rep!
Do not try to overclock your laptop.
    
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post #7 of 15
When you overclock you will ask for more Amps to if you increase the voltage. therefor your power supply should deliver more power to.

How much more current will flow is hard to know.. you need to know more then just voltage, you need to know about resistance to.

Just get the same or higher rated power supply then you had before and you should be fine, even with good overclocks on a laptop.

Beware: laptops often run on max heat allready, overclocking a laptop can result in to much heat and all the problems that comes with it
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post #8 of 15
Quote:
Originally Posted by csscmaster3 View Post
Do not try to overclock your laptop.
why not?

as long as he doesn't care about reduced batteries and more heat output, it's fine

i had my netbook oc'd to 2.1ghz from 1.6ghz
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post #9 of 15
Quote:
Originally Posted by skarm View Post
why not?

as long as he doesn't care about reduced batteries and more heat output, it's fine

i had my netbook oc'd to 2.1ghz from 1.6ghz
Based on the op's posts I am not sure I would recommend overclocking to him until he gets a new power supply.
    
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post #10 of 15
Thread Starter 
Quote:
Originally Posted by csscmaster3 View Post
Do not try to overclock your laptop.
Quote:
Originally Posted by Farih View Post
When you overclock you will ask for more Amps to if you increase the voltage. therefor your power supply should deliver more power to.

How much more current will flow is hard to know.. you need to know more then just voltage, you need to know about resistance to.

Just get the same or higher rated power supply then you had before and you should be fine, even with good overclocks on a laptop.

Beware: laptops often run on max heat allready, overclocking a laptop can result in to much heat and all the problems that comes with it
Quote:
Originally Posted by csscmaster3 View Post
Based on the op's posts I am not sure I would recommend overclocking to him until he gets a new power supply.
thanks for all ur answers and am gonna rep u now.
i forgot to say that we dont have to care about temps because the case of my laptop is opened and i made a modifited laptop cooler which connects to the main and i have 40min 60max on cpu and gpu i can say that i have better temps than some desktop have

so go for more amps will definitely let me but more volts to my gpu core so more mhz? because the desktop 4850 gpu goes up to 630/1200 and i only can put it at 1.15v 580/1000.
rep again if u answer.thanks again if u want rep me to coz i wanna sell black ops keys for 25pounds

also is it possible to burn the resistors puting more amps (current) in my lap?
Edited by lenarass20 - 12/20/10 at 11:50pm
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