All Questions
Tagged with power-supply power-management
48
questions
1
vote
4
answers
4k
views
PC restarts on power outtage despite having a UPS
Unfortunately where I live I do not have 24/7 electricity.
My new PC rig which is considered to be a high-end(gaming)
system is connected to a brand new APS/UPS that have these specs:
DC-AC ...
58
votes
5
answers
107k
views
How do you check how much power a USB port can deliver?
Some laptops have a special USB port that can deliver more power than the other ones. However it is not always easy to identify which one is the good one, nor how much power it can deliver.
So is ...
- 1,885
1
vote
2
answers
388
views
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
0
votes
0
answers
51
views
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 ...
0
votes
2
answers
1k
views
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 ...
CommunityBot
- 1
0
votes
0
answers
2k
views
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
0
votes
0
answers
385
views
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 ...
CommunityBot
- 1
1
vote
1
answer
937
views
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
0
votes
0
answers
82
views
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. ...
CommunityBot
- 1
0
votes
0
answers
94
views
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
0
answers
825
views
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
1k
views
Reduce power usage while computer is "off" [closed]
Recently I bought a device to measure the wattage from devices. To test the apparatus I measured 6 watts from an IKEA LED light bulb which was supposed to produce 6 watt usage and a few laptop ...
- 4,247
1
vote
1
answer
49
views
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 ...
- 9,094
6
votes
4
answers
56k
views
Does a UPS charge it's battery even if my computer is turned on?
I bought a new UPS and the manual says something like
The UPS must charge for 24 hours before it can work properly...
My question is, does it charge even if my computer is turned-on or should I ...
- 1
1
vote
0
answers
70
views
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