All Questions
12
questions
0
votes
1
answer
76
views
Can a loosely connected PSU damage a laptop?
is it a bad thing that the cable connects to the power adapter block in a laptop power supply comes loose and is left alone while the laptop is under use (as shown in the picture)? I am worried it ...
- 21
12
votes
3
answers
30k
views
How can I detect the USB-C power delivery voltage?
I have an HP laptop which I charge with a USB-C charger through the USB-C port. I have no idea which power delivery (PD) version it has and if it's PD-compliant at all. However, as the charging works, ...
- 1,345
0
votes
1
answer
156
views
How to replace my power supply safely?
If something is powered from a 9 V and 1 A supply, you can replace it with a 9 V and 1 or more amp supply. How would one calculate if it is safe to replace it with a less voltage and less amperage ...
- 101
0
votes
2
answers
5k
views
can i power a device with more output amperage than the device needs? [closed]
I just brought a speaker that runs on 12v power supply. So i want use it on my car.
Can i power a speaker with a car battery 12v directly?
Speaker input: 12V, 1.25A
Car battery output: 12V
1
vote
2
answers
11k
views
Okay to supply more amps? Use a 14V 4A 56W power adapter on a 14V 3.21A (45W) monitor?
I have a Samsung 4K monitor, LU28E510DS/ZA (Costco exclusive variant), with a back panel describing DC14V 3.21A.
I cannot find an exact replacement power supply. I found one that is close at 14V 3A ...
- 936
0
votes
3
answers
1k
views
Safe to use a 19V 2.15A DC adapter (a laptop charger) for an accessory that uses a 25V 0.75A DC adapter?
I picked up a USB steering wheel at a thrift store and it requires a power supply to 'nudge' the wheel back into place (if you let go of it, for example). It requires 25 Volts, 0.75A, yet the closest ...
- 103
9
votes
2
answers
5k
views
Under what conditions will a group-regulated PSU damage a modern computer?
These days, group-regulated power supply design is considered obsolete and is ideally avoided—primarily due to the poor regulation under crossload. For example, Shilka pulls no punches here, and while ...
- 3,024
-2
votes
1
answer
708
views
Will an external battery power bank power an mini-ITX board (~200W)?
I was planning to build a laptop from scratch, and I've found some good DC-DC converters that allow you to use an external power source to power a standard desktop board (in this case a mini-ITX). The ...
- 1
2
votes
1
answer
632
views
wireless router power adapter replacement 0.5a vs 0.6a
i have a wireless router with no power adapter, it needs a 9 volts 0.6 amperes adapter but i only have 9 volts 0.5 amperes power adapter.
Will 9 volts 0.5 amperes power adapter damage my wireless ...
- 23
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
3
votes
2
answers
28k
views
PC power supply & normal range for voltages reported in BIOS hardware monitor?
I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound ...
- 10.9k