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 ...
59
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 ...
- 1,895
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
386
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
938
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
835
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 ...
- 4,257
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 ...
- 9,103
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
1
vote
2
answers
4k
views
Is My PSU compatible with this UPS
I have this PSU and this UPS, however due to the PSU being/having an active PFC (power factor correction) it is incompatible with my UPS (at least according to APC tech support, for reference see my ...
CommunityBot
- 1
0
votes
1
answer
233
views
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?
- 8,233
1
vote
1
answer
94
views
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.
...
CommunityBot
- 1
1
vote
1
answer
97
views
How to know if there are stability/ compatibility issues with enabling intel(R) speedstep
There is this power-saving app called granola. And it requires enabling Intel(R) speedStep on the bios(CPU Configuration).
How would I know if there are issues with enabling this feature with my ...
- 2,003
3
votes
2
answers
39k
views
Can a faulty battery cause my laptop to shutdown even on AC line? (battery installed AND plugged in together)
Until recently, I experience something rather annoying (and troublesome) with my laptop. It spontaneously shuts down itself without any warning, it restarts. No blue screen, no hanging program, just ...
CommunityBot
- 1
2
votes
1
answer
866
views
Is there an instrument or software that can measure the ACTUAL maximum power available to a USB port? [closed]
I use a non-self-powered USB modem device for a solutions I provide to multiple customers, and very often I encounter a problem in which the devices stops working due to many reasons, one of which I ...
CommunityBot
- 1
3
votes
5
answers
3k
views
Does a cable internet connection remain active during a loss of power in the apartment building?
I live in an apartment building in Czech Republic, Europe. I have a cable internet connection with a static IP connected to an Ubuntu server I set up. Recently out building lost power, though the ...
- 703
0
votes
0
answers
92
views
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 ...
- 853
1
vote
3
answers
3k
views
Do C13 male/female cables exist? Or do I even need them?
I am hoping to plug a few computers into this HP PDU soon.
I have aftermarket power supplies, all of which take c13 female connections apparently.
The PDU (from what I gather in the pdf) has 8 * c13 ...
CommunityBot
- 1
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 ...
- 7,943
1
vote
1
answer
1k
views
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
1
vote
1
answer
1k
views
How can I make my laptop hibernate/sleep when the charger is removed?
My laptop doesn't have battery. I'm using it with direct power supply. So the problem is that whenever the electricity goes off or when the charger is unplugged, my laptop shuts down and my work is ...
- 5,414
0
votes
0
answers
77
views
Make laptop turn on automatically
I have a laptop of IBM X41. I want to use it in a project in making in which it will be used as kiosk.
If power goes out and comes back I have to press the power button to turn the computer back on. ...
- 6,621
1
vote
0
answers
825
views
Computer crashing when I play games
Specs:
Intel Core i7-3930k
Corsair H70 CPU Water Cooler
16Gb DDR3 G.Skill 4x4Gb 1600Mh
120Gb Intel 520 Series SSD
2Tb WD Caviar Green WD20EARX SATA 6Gb/s 64mb Cache SATA3
AMD Radeon R9 ...
- 56.1k
238
votes
6
answers
208k
views
Should laptops remain plugged in when their battery is 100% charged?
When your laptop's battery is 100% charged, should you leave it plugged in so any battery power doesn't get used, or will that cause overcharging, overheating, etc.? Should the laptop be unplugged ...
- 181
-1
votes
1
answer
656
views
What are the impact on underpowering my motherboard/graphic card?
I recently had to change my PSU and the one that was given to me has not enough power cables to fully plug every plug in the motherboard and the graphic card. It seems to work just fine though, and it'...
- 17k
7
votes
2
answers
85k
views
How many watts do case fans generally use?
I'm deciding between a 500 watt PSU and a 600 watt PSU.
I currently have a 460 watt PSU that powers everything but my dvd drive, spare hard drive, and 2 fans.
I've determined 40 watts is enough to ...
- 3,228
4
votes
1
answer
1k
views
Do Any PDUs/Power Strips That Plug Into A 14-30 Receptacle Even Exist?
I am hoping to turn my laundry room into a mini data-center.
My dryer takes a 4 pronged, 120/240v NEMA 14-30 receptacle.
Most all PDUs seem to have NEMA L6-30 plugs (3 prongs, twist lock).
...
- 1,847
8
votes
7
answers
21k
views
How do I lower power consumption of my computer
My electricity bills are high and my Dad keeps shouting me for that (I use my computer over 20 hours per day). Below are the few things I am curious to know;
How do I lower my Computer Power ...
- 4,062
10
votes
4
answers
11k
views
Does my 1000 watt 80gold+ (90% efficient) PSU pull 1111 watts, 1000 watts, or 900 watts from my wall receptacle at 100% load?
Does my 1000 watt 80gold+ (90% efficient) PSU pull 1111 watts, 1000 watts, or 900 watts from my wall receptacle at 100% load?
When I plug my 200 watt video card into one of the PCIe power connectors.....
- 1,847
7
votes
1
answer
7k
views
Internal UPS for desktop computers? [closed]
I was wondering, are there internal UPS'es available for desktop computers?
Every laptop has something like a UPS in it: The battery pack. Desktop computers don't consume that much power, it should ...
0
votes
1
answer
193
views
Poweredge 2500 6C822 PDM Board Pinouts?
Okay, here's a strange one: I am trying to use an old Poweredge 2500 chassis to house a newer ATX-type motherboard.
What I need to know is this:
What are the pinouts for the 6C822 Power ...
- 2,753
0
votes
1
answer
1k
views
PC won't boot after unplugging power until doing several re-pluggings
After shutting down my PC, I usually unplug the main power cable, but the next time it's plugged my PC won't boot until I unplug and replug it several times (twice or more).
Does this happen to be a ...
- 62k
2
votes
2
answers
158
views
Do chargers consume power when plugged but not used? [closed]
Many people leave their chargers for mobile phones, laptops, devices of any kind plugged into the power socket but without the device they are supposed to charge, connected at the other end.
When ...
- 3,546
2
votes
2
answers
120
views
Desktop PC power supplies - will a fancy one save power (while powering same hardware components)?
Say I put a cheap power supply into a PC, could I save electricity costs by replacing it with some kind of fancy PSU (that's "more efficient" or has some kind of intelligent power management)?
I know ...
- 24.6k
3
votes
3
answers
6k
views
Computer hangs due to underpowered UPS?
I just bought a new UPS. Now since I started using it I experienced at least 3 random freeze in Windows 7 and it happens during the first 10 minutes of start-up. Note when I say freeze, I mean I ...
- 5,533
4
votes
2
answers
2k
views
Will a 300W UPS work fine if my PSU is 500W?
I am getting a UPS (Uninterrupted Power Supply), currently here are my options:
http://www.apc.com/products/resource/include/techspec_index.cfm?base_sku=BE500R-PH
https://www.apc.com/resource/include/...
- 1
1
vote
3
answers
8k
views
How to know how much power my PC is consuming? [duplicate]
Possible Duplicate:
How can I calculate power consumption of my PC in Watt?
I'm living with my parents. My dad was complaining that because of my excessive computer usage , he had to pay huge ...
CommunityBot
- 1
6
votes
2
answers
917
views
Reduce power use on computer
I watch a lot of movie's on my computer which is connected to my TV. Problem is i built the pc to be a gaming computer and it has the power supply to match (1200w).
Is there a way to set it into a "...
CommunityBot
- 1
0
votes
1
answer
467
views
Laptop HP530 has the same brightness with battery than with AC power
I have a notebook (HP 530) and I always noticed that with the AC power cable plugged the brightness of the monitor is greater than without it (i guess its to save power when running on battery). But ...
- 8,899
4
votes
2
answers
3k
views
Is a laptop damaged by always keeping it plugged in?
If I keep the power cord plugged in all of the time, will it damage my laptop?
CommunityBot
- 1
3
votes
7
answers
252
views
Likely reason for not being able to power on an older computer?
I demoted my older desktop computer to a server a short while back and it has always had some sort of problem with powering on after a complete power loss.
For instance, right now it's powered on and ...
- 4,960
6
votes
4
answers
3k
views
Will unplugging my computer/entertainment center every night cause damage?
All squirreled away within a nice little cabinet are the following components of my entertainment center:
Pentium-4 based (vintage ~2002) PC
Samsung 32" LCD HDTV
Netgear Ethernet hub
XBox 360
Wii
A ...
- 8,138