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Will too many amps fry my computer?

Hi,

I just bought a replacement AC power adapter and the amps are slightly
higher than the original (3.4 versus 3.16). As long as the voltage is
the same (19v), it should be fine right? If I remember correctly, the
max output is Volts x amps and my computer will draw what it needs.
My biggest concern is frying the wire.
 
E

Eeyore

Jan 1, 1970
0
Hi,

I just bought a replacement AC power adapter and the amps are slightly
higher than the original (3.4 versus 3.16). As long as the voltage is
the same (19v), it should be fine right?

Yes.

Graham
 
L

Lord Garth

Jan 1, 1970
0
Hi,

I just bought a replacement AC power adapter and the amps are slightly
higher than the original (3.4 versus 3.16). As long as the voltage is
the same (19v), it should be fine right? If I remember correctly, the
max output is Volts x amps and my computer will draw what it needs.
My biggest concern is frying the wire.

Insure the polarity is correct and that the replacement is a REGULATED
19 volt supply.
 
B

Bob Dent

Jan 1, 1970
0
Hi,

I just bought a replacement AC power adapter and the amps are slightly
higher than the original (3.4 versus 3.16). As long as the voltage is
the same (19v), it should be fine right? If I remember correctly, the
max output is Volts x amps and my computer will draw what it needs.
My biggest concern is frying the wire.

The extra current capability of the new power supply will only be
supplied if needed. The assumption must be that your original power
supply was enough for the load, so for the same voltage your new supply
will putting out the same current as before.
So you are correct.

Bob

www.bitsbox.co.uk
Electronic components for the hobbyist.
 
D

default

Jan 1, 1970
0
Hi,

I just bought a replacement AC power adapter and the amps are slightly
higher than the original (3.4 versus 3.16). As long as the voltage is
the same (19v), it should be fine right? If I remember correctly, the
max output is Volts x amps and my computer will draw what it needs.
My biggest concern is frying the wire.

Should be fine. There are exceptions like battery chargers - but even
in that case you should be good to go.

You won't fry wire with that power differential unless the original
wire was giving off heat or light . . .

"AC power adapter" and "DC power adapter" aren't the same. In some
cases you can use a DC in place of an AC and visa versa - but if
that's the case tell us.
 
M

Michael A. Terrell

Jan 1, 1970
0
Lord said:
Insure the polarity is correct and that the replacement is a REGULATED
19 volt supply.


Have you seen any 3 A supplies that weren't regulated?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida
 
L

Lord Garth

Jan 1, 1970
0
Michael A. Terrell said:
Have you seen any 3 A supplies that weren't regulated?

Point taken but I was thinking some schmo would call a bridge and a cap
regulated.
 

neon

Oct 21, 2006
1,325
Joined
Oct 21, 2006
Messages
1,325
as long s the voltage is the same as before 19v you are ok even with 100 amp input . some talk about regulation for AC there is none the internal power supply will take the 19v ac and regulate from there. the only way you can fry your item is the is a short internaly but then it doesn't work does it. the other way around it will not work rsay it require 5 amps and your source is only 3 amps the voltage will surely decrease and the item might not even come up eventualy you will fry the source with heat.
 
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