All Questions
Tagged with power-supply voltage
58
questions
2
votes
2
answers
18k
views
Can low voltage damage laptop or it's battery?
Sometimes I get very low voltage in my house. I am worried if I connect my laptop charger to the socket, will it damage the charger, battery or the laptop itself?
- 139
-2
votes
1
answer
96
views
Power Adaptor Compatibility [duplicate]
my Sony Vaio Power Adaptor broke today and i wondering if i could replace the broken one with the Adaptor from my older Vaio, here are the specs :
Broken Adaptor : VGP-AC19V54
Old Adaptor : VGP-...
0
votes
0
answers
87
views
Computer slow after plugged into wrong voltage
So I set up a desktop computer running ubuntu in a classroom that was running through an AVR at 220 volts. I got a report that it wasn't working, so I came to look at it, and sure enough, fans and ...
- 1,697
0
votes
1
answer
2k
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connecting two 3.7v battery's to tablet, in parallel for extend the working capa
my tablet have 2500mah battery. it works for four hour. but I want to extend the source power.
so I want to connect another same voltage battery to tablet. battery was 1500mah.
can i make connection ...
Vighnesh
1
vote
0
answers
204
views
Should you worry about high voltage and wattage on a non-overclocked computer?
I've been wondering if I should be worried at all about high wattage or voltage on a non-overclocked computer. I say non-overclocked because when I Google search this question or something similar it ...
- 39
-1
votes
3
answers
4k
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What do OUTPUT charts of PC Power Supplies mean?
I'm looking at various power supplies and they all come with different output cables.
They also have different OUTPUT charts, for example:
What I'm wondering:
What are these output columns are ...
- 325
0
votes
1
answer
745
views
How can a power supply rated 7A be strong enough for two devices rated 5A? [closed]
I am not understanding something fundamental to amperage:
Consider this adapter which outputs 12V 7A. It claims that several (eight, in this case) devices running at 12V 5A can draw enough power from ...
- 1,154
2
votes
2
answers
4k
views
PSU blue wire reads strange voltage
I was testing my PSU with the paperclip method and checking the voltage of every wire just to be sure it is 100% functioning.
What surprised me was that every wire was working just fine but one, the ...
- 35
2
votes
1
answer
3k
views
Is PSU voltage ripple something to worry about?
I'm currently putting together my first computer and I've had my eye on a Fractal Design Newton R3. From all of the reviews I've read this PSU comes out shining with the exception of voltage ripple on ...
- 222
1
vote
2
answers
2k
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Computer cables explained [closed]
I've noticed lately that places to learn about both power supply cables and also peripherals and fans aren't that easy to find.
There's very little information available that gives detailed ...
- 222
1
vote
3
answers
2k
views
would I save power using a lower voltage power adapter? (on a modem)
from various experiences modems, access points, and other devices will often run fine even with power adapters of lower voltages (compared to their original power adapter).
I am wondering if using a ...
user253974
0
votes
1
answer
2k
views
Power Supply case measures 75V?
My friend showed me his dead computer. When I powered up, the green LED on the motherboard didn't even come on. He had bought a new $40 500W power supply and he wanted me to install it. I did, and ...
- 11
0
votes
2
answers
885
views
Cable from laptop brick to wall [duplicate]
I've seen plenty of questions asked about the power output of laptop bricks to the laptop - however my question is does the plug and cable that runs from the laptop brick to the wall need to match up?
...
- 1
1
vote
2
answers
8k
views
Power supply bad with good voltage?
I am trying to drive out the reason I am having some hard drive "hard resetting link" error problems on a Linux Debian box.
I am trying to eliminate the power supply as a problem in trouble shooting, ...
- 1,934
2
votes
1
answer
12k
views
Insufficient power from an adapter
Would not having enough power (or voltage or amperage) from an adapter make a laptop no longer charge/boot up (if the battery is out of power)? What about causing shorts? And would using a different ...
- 133