NotebookForums.com › Forums › Notebook Manufacturers › Lenovo Forums › Lenovo Notebooks › can i use my 4.5amp IBM power supply on my 8790?
New Posts  All Forums:Forum Nav:

can i use my 4.5amp IBM power supply on my 8790?

post #1 of 9
4/5/05 at 7:47pm
Thread Starter 
8790 power supply has 6 amps...
my ibm thinkpad has a 4.5 amp power supply

the plugs are the same...i have it plugged into my 8790 right now and works fine...

what are the negative effects?
Reply
Reply
post #2 of 9
4/7/05 at 12:44pm
Thread Starter 
BUMP..

anyone know?

is it bad to plug a 4.5 amp power supply into a laptop which came with a 6 amp power supply??


(IBM power supply plugged into my 8790...)
Reply
Reply
post #3 of 9
4/7/05 at 1:16pm
Quote:
Originally Posted by oresteez
BUMP..

anyone know?

is it bad to plug a 4.5 amp power supply into a laptop which came with a 6 amp power supply??


(IBM power supply plugged into my 8790...)
What does the laptop require, check the bottom of the lappy or the manual, not the power supply. If it's far in excess of what the power supply is rated to deliver, you're taking a gamble with the powersupply and maybe your laptop.
Reply
Reply
post #4 of 9
4/7/05 at 3:15pm
Thread Starter 
i think originally sager used to shop 4.5 amp power supplies...then they switched to the 6 amp bricks about a year and a half ago...

either way, the rubber part.. is starting to pull away from the brick part, and exposes the inside wiring a little bit..
this is a problem i've had in the past with another sager power cable, i've seen other people post about it also...

i'm tryin to avoid either a war with sager for them to replace it, cause i know they will give a hard time....they play ignorant when it comes to problems like this, and say they've never see nthis happen before...even tho people post that it happens a lot, hehe
Reply
Reply
post #5 of 9
4/7/05 at 3:31pm
umm, that was a pretty foolish thing to do.

First thing you have to check and see is if the VOLTAGE is the same. If the voltage is the same, the most that will happen is it will not provide enough energy to supply the laptop. For most laptops, what would happen at that point is that the battery simply would not charge.

The number of amps isn't the number of amps it always provides, it is the maximum ampere output of the device. You can hook up a 200 amp power brick to a laptop with the right voltage and it would be fine.

Edit, to clear things up: Power is Volt * Amp (Watts). When the voltage is the same, the most that happens is an undersupply of wattage for the electrical component.
Reply
Reply
post #6 of 9
4/7/05 at 8:50pm
Likely no damage if voltage is similar.

However, it may become unstable when running demanding tasks
Reply
Reply
post #7 of 9
4/7/05 at 10:08pm

power supply cable

...on a bit of a side note.....
I have a question about my <a style='text-decoration: none; border-bottom: 3px double;' href="http://www.serverlogic3.com/lm/rtl3.asp?si=22&k=power%20supply" onmouseover="window.status='power supply'; return true;" onmouseout="window.status=''; return true;">power supply</a> cable. If i lost the cable that runs from the power supply to the wall socket can i just go and buy any 3 pin connector (the sager 9860 is a 3 pin) and plug that into the power supply?

Cheers (sorry im sidetracking....)

(i have ordered the Sager 9860)
Reply
Reply
post #8 of 9
4/8/05 at 4:16am
most bricks use the standard 3 prong cord, like which goes into monitor/desktop, though some use the 2 prong (like the dreamcast/ps2/xbox use).
Reply
Reply
post #9 of 9
4/8/05 at 1:08pm
Thread Starter 
the 3 prong that is used on my brick is different than the 3 prong that is used for monitors desktops...
the one for 8790 power cable is shaped with 3 circles..2 on bottom, 1 on top in the middle...
i believe dell power cables use the same type of cable...

if you find one that fits, it should work fine..
Reply
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Lenovo Notebooks
NotebookForums.com › Forums › Notebook Manufacturers › Lenovo Forums › Lenovo Notebooks › can i use my 4.5amp IBM power supply on my 8790?