All Questions
Tagged with power-supply power
468
questions
0
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1
answer
2k
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Slow Wattage of Thinkpad T480 Charger
Here are the problems I have with my T480:
The "Slow Charger" warning appears in Windows. I tested several chargers on Windows and Linux that support at least 65W, but Lenovo Vantage and ...
0
votes
0
answers
66
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Unable to charge HP Envy Intel i7 11th gen with Comsol 25600 power brick
I purchased and HP laptop as above. The battery won't get through a full day on a charge, so I purchased a Comsol power bank. I have contacted Comsol and have been told that it should charge a laptop ...
- 847
0
votes
3
answers
8k
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Lower power output when charging devices, is that ok?
Similar question to here: Laptop power supplies, does current matter?
According to the answer, using a lower rated power supply/adapter could cause several problem such as melted power supply/cord.
...
- 121
1
vote
2
answers
388
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What Sized Cables Are Most Commonly Used To Connect To PSUs?
Most all wall plugs in North America are type A or type B.
What type of cable end usually plugs into an aftermarket PSU?
I am pretty sure it is the C13 cable, but not many PSUs make this ...
CommunityBot
- 1
1
vote
0
answers
22
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10-year old Sven Pro 1000 UPS turns off if load is low - batteries are good
I have a Sven Pro 1000 UPS which is 10 years old. However, it still works good after replacing its batteries twice. The only problem is that it automatically turns off if the load is very low - for ...
- 74.2k
0
votes
1
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172
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Is it safe to pull the power plug off of the monitors?
I have four monitors plugged in through Amazon Smart plug so that I can turn off all the monitors with ease while keeping the Desktop running.
But one of the monitors recently failed. Is it safe to ...
- 9,469
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votes
0
answers
366
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How to know if USB hub receives enough power to power all my applicants/devices(used bandwidth)?
I have USB type c that connects these devices: (1) 2 TB SSD (2) Ethernet network (3) Mouse (4)Keyboard (5)Aux speakers.
I was wondering if the hub receives enough power or not from a single type c ...
1
vote
3
answers
903
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Boot issues after thunder storm
The village where I live was sat under a thunder cloud for most of Friday, and we suffered a few power fluctuations (specifically, what seemed to be split-second outages). When I got back home from ...
- 21
14
votes
1
answer
4k
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Is it okay that part of the power jack is outside the device?
I have some devices whose DC adapter connector/jack is only partially plugged in.
For example, my monitor has an AC to 180 W DC power supply. When connecting the transformer to the monitor, the DC ...
- 158k
1
vote
1
answer
3k
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windows laptop event log power source change from battery to ac power
For the windows laptop event log power source change, how can I tell if it is switching from AC power to battery or from battery to AC power?
I attach a screenshot here.
It seems impossible to tell ...
- 64
1
vote
8
answers
118k
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"0190: Critical low-battery error" on Lenovo Thinkpad T540p
When powering on, a refurbished Lenovo Thinkpad T540p (which worked for a few months without any problems) shows "0190: Critical low-battery error".
Although the Thinkpad splash screen says to press ...
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0
votes
1
answer
2k
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Computer monitor shuts off temporarily when the window AC kicks on
When my window AC kicks on, one of my two monitors kicks off for a couple seconds. It's never the same monitor when it happens. I installed a very large UPS thinking it was power drops, but it doesn't ...
149
votes
6
answers
1.1m
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What is the power output of a USB port?
As the title says, what's the power output of a USB port?
Is it a standard value, or it may change depending on manufacturer/model, and so on?
If that value is not standard, how can one determine ...
- 279
1
vote
1
answer
9k
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Asus T100 won't boot - LED blinks 5 times
I've been using my ASUS T100 for more than 5 years. Today, I started it as usual, but only noticed the LED blinking 5 times. When charged fully, it blinks 5 times in white and when unplugged, it ...
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0
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1
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1k
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Why is my UPS causing my monitor to make a high pitched humming noise
I recently purchased a UPS for a new server build for my home. Since the server sits next to my desk, I figured I'd plug my Macbook and monitor into the UPS as well. That way if the power goes out, I ...
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