All Questions
Tagged with power-supply power-management
48
questions
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Computer turns off randomly
Desktop, custom built PC, Intel i7 UEFI, 1 NVM 1 HDD 4 SSD. Computer turns itself off randomly, a few seconds later turns back on. Replaced power cable, checked internal cabling, disconnected HDD, 2 ...
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votes
2
answers
1k
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Continuous power consumption of laptop's power brick when in plugged in, not charging mode?
Modern laptops come with the facility of being used in a plugged in mode only, without overcharging the battery. So, in such a case, the power consumption through the adapter should vary according to ...
- 111
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0
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2k
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Power consumption: laptop in sleep mode
I found out there's a post calculating the power consumption cost, which tested on a PC. However, I haven't found any data that is related to laptops, or any software to test the power consumption. If ...
- 101
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385
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UPS turns itself on
So, I shut down my computer, turned off UPS and turned the extension cord (UPS is connected there) off. After an hour, UPS turned on and started beeping. It has happened to me two times before, but ...
- 1
1
vote
1
answer
936
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CAD workstation draws ~200 WATTS but constantly crashes with a 750 WATT PSU. It is stable with a 1000 WATT PSU. Why?
I have a CAD rendering workstation that barely ever draws more than 200 WATT (and then only when under extreme CPU load from doing multiple simultaneous CAD renders), but it frequently crashes when ...
- 115
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82
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Is it Windows or the battery?
my laptop has an 8 year old battery. my battery didn't charge and i froze it after freezing it, my battery charged again and lasted for 3 hour of normal use and like 2.5 hour of video and sound use. ...
user1218141
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94
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low voltage POST only means battery problems?
No doubt the watch battery on the motherboard long since lost its juice.
However, I'm not quite sure what error I saw on boot, I think it was before POST and I think it mentioned "low voltage&...
- 1,650
3
votes
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answers
822
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iMac G4 won’t turn on
I’m attempting to repair and old 2003 17” iMac G4 that won’t power on. It’s completely dead, no startup sound, fans don’t spin, nothing. I’ve tried the following so far:
Attempted PMU reset using the ...
- 111
1
vote
1
answer
48
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How to safely turn off USB-connected, ATX PSU powered 3.5" hard disk drives built as internal?
I have a bunch of internal, 3.5" HDDs which I connect them to my laptop using an adaptor which converts SATA/IDE to USB 2.0. I can choose the "Safely remove storage" option in Windows 10 and it ...
1
vote
0
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70
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Effect of power outage on power supply connected to surge arrester and voltage regulator
I have a computer that connected to an automatic voltage regulator and an a surge arrester. The power supply unit is set to automatic power recovery so that when there's an outage, it will start the ...
- 119
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votes
1
answer
232
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How to run a Windows application when the laptop power cable disconnected or AC power Failure
We have a laptop that online for 24/7
in-case of power failure need to run a batch file or program
like below
How to run a Windows application when the ethernet cable is connected?
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92
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Modify computer case to fit entrails?
I've got a hardware question today.
My PC is currently at a state where it has too many parts outside the case for Its own good. You can see below that some of the external parts, which include power ...
- 843
1
vote
1
answer
93
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PSU requiring often cable change
I seem to be having a strange issue with my PSU that I use for my computer.
Long story short, I built my own computer about 1-2 months ago, and was having no trouble with it for about the first month.
...
user613581
2
votes
3
answers
2k
views
Having a rough estimate of energy consumption of the computer.
I'm developing an app which needs to know about the energy consumption on computers (On windows). I realized the OS has no functionalities to support this directly, so my workaround is collecting info ...
- 273
1
vote
1
answer
1k
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Is there a way to "hack" the power options in Windows 10, e.g. change from to 100% instead of 60?
In this link is said
There is nothing that a user needs to do manually, to maximize battery health on these batteries. For this reason, we don't provide any utility to manually manage battery ...
- 165