Electrical power is essential to the operation of any computer and any of its components or peripherals.

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2answers
149 views

Are there safety concerns for leaving a tablet plugged in permanently?

I have an HP Stream tablet that was gathering dust until I looked for ideas for an unused tablet, one of which was to use it as a picture frame. I'm going to mount it to the wall using Command Strips ...
0
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1answer
32 views

Computer Won't Turn On And Power Goes Out

When I plug in my computer and click the switch on the PSU and then the power goes out (It's the house power) How would I check if the PSU is faulty? The computer I have is a computer that I put ...
0
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1answer
206 views

Can a USB port (or motherboard) be damaged by drawing too much power?

I have a USB powered DVD drive connected to my laptop. I put a DVD in and left the room. Didn't come back till a few hours later. When I came back I found the DVD drive continuously trying to spin-up ...
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0answers
39 views

My laptop's suddenly stopped working.

I got up to use my laptop this morning and there's a problem. When I try to turn it on, the light briefly turns on and then almost instantly turns off. I've tried to find some help and some other HP ...
0
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0answers
54 views

How Much Power does a generic, modern Laptop use? [closed]

I'm wondering, for another project, how many watts a generic modern latop uses. A quick google search did not really yield any useful information. I'm also wondering if there's some software to ...
1
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1answer
18 views

Monitor connected to a surge protector goes blank for a few seconds everytime room lights are switched on

I have noticed this problem in 2 separate locations. In both cases they are computer monitors connected to a surge protector extension cord. Every time the lights or fans are switched on or the ...
1
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2answers
56 views

Brand new build powercycling, no display

My boyfriend and I have a new rig here with all new parts: MoBo Gigabyte GA-X99-UD3, CPU Intel Core i7-4960X 3600 MHz Ivy Bridge-E, two 8GB of DDR4 RAM, GTX 960 4G video card, 650w Rosewill power ...
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1answer
58 views

Battery drops down suddenly

I have purchased a LENOVO YOGA 300 recently. The battery discharges from 95% to 45 % normally and suddenly jumps to 7%. Pl suggest. Its just 2 month old Laptop.
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0answers
43 views

Windows 10 stops after hibernation

I have a problem with my windows 10. It is convinient to me to hibernate my laptop, so it loads fast after that and everything is saved. So I usually use hibernate. But when I installed windows 10 ...
1
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1answer
94 views

I want my PC to turn on automatically when power is connected

I want my PC to turn on automatically when power is connected. This is not for turning on after a power loss but so when I remote control the power socket the pc can be turned on from a distance ...
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0answers
18 views

Power button keep on even after auto sleep

When my laptop goes to sleep power button light is still on. As a result charge reduce gradually. When I try to wake it up by pressing any key of keyboard, it doesn't wake up properly. Screen is ...
0
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0answers
16 views

Broken BIOS after a piece of hardware behind the power button came out

My grandpa's computer is old and running Windows 7. I went to plug in my phone by a USB port, which is right above the power button. The USB didn't go all the way in, and instead made a clicking ...
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0answers
55 views

My Surface 3 goes into sleep/screen saver mode while I am actively using it (e.g. typing or scrolling with the mouse)

I have a Surface 3; when I am using it; typing etc, it keeps randomly going into sleep/screen saver mode. I haven't locked the screen, it's not inactive, I'll be typing or scrolling and the screen ...
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0answers
10 views

Asus x202e Power Port Not Working

I have a service contract with Asurion. I have sent my computer in twice for a problem they can't seem to find. My power-dc is not working. I at first thought it was my cord so I brought a generic ...
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1answer
102 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 ...
0
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3answers
85 views

Will I damage the laptop if I always use a travel adapter to charge it? [closed]

This scenario could happen if I bought a laptop in one country but later moved to live in another country with a different power standard. Will it be safe to just add a travel adapter on the plug and ...
2
votes
1answer
170 views

Unplugging power cord and holding the power button. PC won't turn on

Okay so I attempted to fix a Windows 10 usb problem by following a month old forum. The instructions were: Unplug the power cord from desktop computer. Hold in the on/off button for approx. 10 ...
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0answers
34 views

Monitor turns off after a few seconds - both monitors

Running into a weird issue - my second monitor started turning off after a few seconds today. I power off and back on, and it immediately powers off again after a few seconds. I tried a spare monitor ...
2
votes
0answers
300 views

Won't boot after inserting new RAM sticks

I bought a new pair of 4gb RAM sticks today. Thinking it'd be easy to install, I powered down, slapped them in and powered on. It wouldn't boot. Fans spin up, a couple of seconds pass then it powers ...
1
vote
1answer
47 views

Power button triggers a ctrl+alt+deleter screen

I have looked up for a solution on several forums but can't find it, hope I didn't miss it ! I have a laptop and I am used to turn it into sleeping mode by pressing the physical power button that is ...
1
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1answer
1k views

Where are the power switch pins?

I’m custom building a PC. I’m using an MSI Z97 PC Mate motherboard. The big power supply is an EVGA 430W. It’s all plugged in, and I hit the switch but it doesn’t do anything. Both JPWR 1 and 2 are ...
0
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1answer
283 views

Does changing the screen resolution affect power consumption?

If I have two identical monitors and have set one to display in high resolution and the other to display in low resolution will there be any difference in power consumption? Note that this question ...
0
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1answer
40 views

How to tell whether my device has gone in to suspend

I've recently been given a new work laptop and have installed Fedora 22 on it, when I have suspended it recently it has woken up and I'm pretty sure the battery has drained massively while it should ...
0
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0answers
11 views

HP desktop (XP era) only turning on with power button pressed and unattaching

I got an old XP era Desktop from HP. I've added a HDD, but for the new HDD I needed to unplug the power button or actually all motherboard stuff, also the front was deattached. Because I wanted it to ...
1
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1answer
121 views

Windows 10 - Computer will not enter reduced power mode

This has been asked before in the form of "Windows X won't sleep", and I've unsuccessfully followed all of the prescribed diagnostic steps everywhere I can find. Some time, about 2 weeks ago, my ...
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2answers
2k views

Will stopping hard disk when inactive also stop downloads?

If I enable to turn off hard disk when inactive in Windows Power Plan - Advanced Settings, will it also stop my downloads in different programs? Currently my Internet connection is slow.
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0answers
13 views

Thunderbolt to DisplayPort, how much current?

I want to feed an embedded DisplayPort LCD using the signal coming from a Thunderbolt source. I know that eDP is very similar to DP except that it has also to supply the power for the LED backlight ...
1
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1answer
64 views

Does Laptop power supply matter? [duplicate]

I have a power supply which is 19.5V and 6.15A. My friends power supply or laptop probably broke and his power supply has a 19V and 6.32A. His charger comes with an adapter which fits my plug ...
0
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1answer
97 views

Understanding Meaning of Power Indicator Blinks for Gigabyte GA-B85-HD3 Motherboard

I've bought a new desktop computer few days ago. It has the following hardware specification: Gigabyte GA-B85-HD3 motherboard Intel Core i-5 4460 Processor 8 GB DDR3 RAM 1 TB Hard disk Windows 10 ...
0
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1answer
100 views

Any easy way to combine (any) laptop charger with USB charger

I have a shitty laptop with only one USB 3.0 port and not enough power on that port to charge anything any fast. There are a lot of cheap USB 3.0 hubs on the market that support external power. What ...
2
votes
1answer
45 views

UPS doesn't work on off-grid solar power system

My APC 350 UPS worked fine when plugged into standard utility company power in the States. Now it's being powered by an off-grid solar power system in Central America, using 120 volt power from a ...
0
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1answer
77 views

Is it possible to use a UPS or power inverter in place of a dying battery in a laptop?

My battery is dying and I can’t buy the a new battery because its not available in my country (India). My battery model is A41-X550E (ASUS). And it’s inside my laptop like this: So that’s why I ...
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0answers
14 views

inspiron shuts off repeatedly when ethernet is plugged in

I have a Dell Inspiron 5348 that shuts off (as if the power is cut) when the ethernet cable is plugged in. At first it will run for 3-4 hrs, then shuts off at shorter intervals until it won't stay on ...
0
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1answer
139 views

How to disable the shutdown/hibernate charge technology in my Asus laptop?

My Asus laptop with windows 7 has a very persistent sleep charge technology (it keeps the power on even after the computer shutdown). How can I disable this feature? I don't see anything related to ...
0
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3answers
60 views

Why isn't my computer turning on past boot screen?

I have an old server computer from 2005 that still has a lot of potential in my opinion. I acquired it from my dad’s old storage unit. It was running well for about a month and then one day—in the ...
0
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2answers
239 views

Is there any way to completely disable the physical power button on a laptop (running Windows 10)?

Is there any way to completely disable the physical power button on a Lenovo Yoga 2 Pro laptop running Windows 10? When I say disable, I mean completely (so not allowing reset even if you hold it).
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1answer
54 views

Is there anyway to get rid of the shutdown/sleep option in the lock screen in windows 10?

The reason why is quite complicated and cant be explained ATM. I'm pretty sure there's an option for it in the settings but I can't find it.
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1answer
39 views

Power consumption of different computers

I have an old computer dedicated solely to running a lightweight web server running on Ubuntu. This is actually quite a powerful computer but I do most of my work off a newer computer. Recently, ...
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1answer
197 views

How can I give more power to usb devices connected to my laptop?

I am getting a USB audio interface with mic preamplifier and I am worried if my laptop will be enough to power it (or if it won't get damaged by by the device).Is there a thing I could connect between ...
2
votes
1answer
684 views

USB Type C Power Delivery Profile - max length?

The new USB-C connector allows for 100W to be delivered to charge laptops etc. Is there a maximum length for a charging only cable? The specification talks about cables being less than two meters ...
0
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1answer
18 views

Laptop falls asleep too early

I'm using Dell Inspiron14z laptop. My current power plan dims the display/ turns off the display/ puts the computer to sleep after 15/30/60 minutes on battery and 30/60/120 minutes when plugged in. ...
6
votes
1answer
977 views

When is too much voltage too much on a PC?

TLDR: The BIOS shows voltages as vcore: 1.248, 12V: 12.566, 5V: 5.160, 3.3V: 3.424. Is this bad? I got one miniITX motherboard that supports a 19 V laptop input instead of the regular ATX ...
0
votes
0answers
45 views

Is there any way (other than actually connecting the charger) to simulate charger connected in a laptop?

I want to know if there is any way I can use to simulate AC Charger connected to my laptop without actually connecting the charger. My laptop's Display Power Saving Tech requires AC connection to work ...
2
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1answer
107 views

Optimal monitor resolution

Currently, there are a lot of monitors capable of displaying 4K resolutions, for example the one used in this Alienware laptop. This laptop has 15 inch display with 4K resolution. I have a few ...
0
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1answer
53 views

Laptop Charger Short Damage

today while I was plugging in my laptop charger a really unfortunate incident happened. The laptop side plug fell down and made contact with the wall jack as I was plugging it in causing a short. It ...
0
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1answer
142 views

Is it necessary to turn off power supply switch to monitor when you shut down your computer?

The computer monitor gets its power from an adapter, while the adapter is connected to the a power strip with its own switch. When the computer has been shut down, the monitor indicator keeps ...
0
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1answer
60 views

Asus 501JW computer wont start

I have an ASUS ROG 501JW, I put it to sleep and after trying to wake it up, the ASUStek application said it was erasing everything from the flash drive, panicking at the imminent loss of information, ...
0
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0answers
56 views

Determine which component failed on a motherboard

Laptop powers up from the battery but it does not from the charger and it doesn't charge the battery either. I have measured voltages on power circuit components (see in the attached image). ...
0
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1answer
36 views

Is it possible to make a laptop behave as if it is working on battery?

Is it possible to make a laptop behave as if it is working on battery, while in fact it would be working on AC power? I have some HW problem with my laptop. It reboots for unknown reason every time ...
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0answers
69 views

U2442 laptop no power

I have a gigabyte U2442V that does not power up when I press power button... No LEDs are on. For some reason before its death I had to keep doing static discharges to make it work... A while after ...