Forum discussion tagged with Power.
  1. B

    Question Laptop Power Supply

    I have a work laptop with a power supply (the power supply's back reads 65w / Output 19.5V=3.34 A / Input 100-240v~1.7A 50-60Hz, and it has the polarity with the positive first, and the negative on the right). I don't normally use that power supply anyway - I use the laptop plugged into a...
  2. K

    Question No Power Clevo N150RD

    Thank you for taking the time to read my question. I own a 3XS Clevo N150RD laptop (bought from SCAN.CO.UK). Its now 7 years old. A few months ago the laptop stopped charging and switching on. The chicony original A12-120p1a power supply was giving a faint chirping noise when plugged into...
  3. Echopros

    Solved! Charge state: blown fuse.

    Hello, newbie here. Yesterday I forgot to remove the battery from when I was trying to mount a new ssd drive, then, suddenly the screw fell on the motherboard between 2 components (I think a capacitor and a resistor or 2 capacitors) and flare showed up in the place. Now the battery won’t...
  4. T

    Question My ASUS laptop works only through battery

    Hi folks, my laptop works only whit the battery's energy. If un unplug battery, laptop doesn't work. So I would think the power circuit on the mono is broken, BUT it can charge the battery! So I can't understand what's wrong. The power supply is fine, and I have tried different power supplies...
  5. T

    Question HP EliteBook 840 Powers on immediately no boot, CAPS constant on

    I have a HP EliteBook 840 that powers on immediately upon connecting a charger. The system does not boot, the CAPS keys is constantly on. The power LED is on. The fan is not spinning. The CPU is heating up. The power key does not power down the device. Has anyone seen this before?
  6. Conquest90

    Question Laptop shuts down when under load

    My laptop is HP Pavillion dv6-6b56er (core i7-2670qm, Radeon 6700m, 6g RAM, Windows 10). I've had it for some time. Battery stopped working on it long time ago, I've been using it as is. After my house had a power surge I had to replace charging cable, managed to find one with exact same...
  7. C

    PC shutdown issues / gasping for air on shutdown

    Hi all! I joined so I could ask this question, which I could not find on the forums. That being said I am unsure how I would characterize the problem, so I may just have been looking in the wrong places. I recently opened up my computer to install a wifi card, and ever since my PC refuses to...
  8. AstroAvocado

    Question Acer Swift 1 SF114 wont boot up, but keyboard lights up.

    So my Acer Swift 1 won't boot up, there are no sounds of fans or hard drives loading however the keyboard will light up. Here are the troubleshoots I have done with no success. Reset button on the back for 60 seconds. Power button for 60 seconds at various times. Removed battery then heled...
  9. Tinbin

    Question ASUS N500J won’t power on

    Hey all, I’m having trouble powering up my ASUS laptop. I just came back from Korea and I got home ready to use my laptop, except for how cold it was. I powered it up and the lights turned on, the drive sound came on, oh how I missed this sound. And then it powers off and i hear a click. I sat...
  10. R

    Question Laptop won't Power On

    Hi, I have a Lenovo Ideapad S210 Touch. It won't power on. I have swapped out between the adapter and battery, both seems good and working. I have also checked the DC-IN jack harness with multimeter, it showed the same voltage as the adapter. I can't power it on with the power button nor the...
  11. alette2

    Solved! ASUS notebook no boot but power light is on and fans spins

    Hello everybody, I have this ASUS x54c that wasn't working, so i bought a new motherboard from AliExpress and tried to revive it... but: when I press the power button only power LED lights up, then after 20-30 seconds the fans start spinning. The screen is black, same results connecting to an...
  12. M

    Question AC power cord for pre amp 7a or 10a?

    Hey y'all! I have a little dilemma. I'm trying to supply the right amount of power to a power brick View: https://imgur.com/a/NY2Rj3t but I don't know which ac cable to use. I have a standard one that came with the ps4 it says 18amp and 7a 125v. Is that enough? Thanks!!
  13. A

    Question Why does my Onkyo TX-8220 Keeps Shutting Off on Phono?

    This amplifier has a protective circuit function, but maybe it is too sensitive? The amplifier clicks one time as soon as it is on phono, then pretty much as soon as the needle is lifted or about to drop, the amplifier clicks again and turns off. It only shuts off like this on phono. First, I...
  14. R

    Question Dell Latitude E7270 Won't Power On

    Hi, I recently bought a second hand Dell Latitude E7270 from eBay. It didn't come with RAM, Disk, Battery etc. but as I have a spare battery. I just purchased memory and disk. On insert of memory it powered up and I could get to the bios. Next, I added the battery and then it stopped...
  15. alexbrtn9

    Solved! Phone goes black, then turns off

    My android phone recently has been going black (screen) then it is completely off. I'll be in the middle of doing something & then it goes black all of the sudden & it's off. I don't know what the heck it's problem is but it is irritating me. I have a Umidigi Z2 Pro phone. Someone please help...
  16. Zkneedhelp

    Question Please help my asus laptop wont start and then keep restarting while playing

    have a gaming laptop Asus Rog GL753vd everything was working fin I've never had a problem with, I don't move it a lot always on the desk and never been open . yesterday, I tried to turn it on but it didn't want to, when I press the ON button the keyboard just flash and nothing happen no noise no...
  17. D

    Question 34/5000 Asus X550CC does not start, but charges

    382/5000 My Asus X550C does not turn on, but the green charging LED is lit when I plug in the charger. I changed the DVD drive for a second hard drive. I tried to turn on the notebook, but it doesn't work. I tried to disconnect even a small battery and hold the power button, but it didn't...
  18. ShubhS146

    Solved! Power Consumption of Speaker

    Hey There, I'm trying to build a speaker with a subwoofer of 8ohm impedance and 15watt threshold and 2x 4ohm 5w tweeters. I want to power the setup using a battery but dont know what battery to use as I dont know how to find the power consumption of the speakers. Plz Help!!
  19. C

    Solved! Samsung smart tv stuck in power loop

    Model: un55ks9500 My Samsung curved smart tv is stuck in a power loop and never fully turns on, backlights come on but not picture or sound. I've replaced the main and power boards with the same issue persisting. Please help! Thanks in advance!
  20. maybeits_jack

    Question Huawei Matebook 13 Only Switching on when Charging

    Hey all, This is my first post here so apologies if it's not quite of the correct format. Three days ago I purchased a new Huawei Matebook 13. A day after purchase I noticed an issue that makes using this new laptop frustrating. After powering down the laptop completely and leaving it be for a...
  21. Royalikor

    Question Fake charging on Samsung NP270e5e

    Hello, my Samsung Np270E wont charge after a power outage, it just says charging but no power is added, battery led turns on and shows Orange=charging, but when i take off the battery with ac plugged in the laptop goes off immediately, I've tried several ac adapters still no way, ive had the...
  22. P

    Solved! Asus laptop shuts off without AC

    Hi, I have this Asus N76VB laptop for quite a long time now. The problem is that my laptop wont turn on without the AC adapter. I have this problem for a long time now but i didnt bother to fix it. When i hover over my mouse on the battery icon with an X in the right bottom it says: No battery...
  23. M

    Solved! Since putting a new fast SD card as adopted storage my power bar won't charge the phone and actually takes charge away. Is th

    Issues with latest Android system update and adopted SD card
  24. A

    Couldn't reassemble power button ribbon cable

    I recently took apart my HP laptop to clean four years of dust from around the fan, but putting the laptop back together again I noticed that I could not reconnect the power button to the main board because the ribbon cable was too short. It was running from the power button, *above* the metal...
  25. S

    Better FPS in games on Power Saving?

    So I always put my power plan on High performance but accidentally today I switched to Power Saving! And the surprising thing was that I had like +15-20 FPS in all of my games! What's wrong with my laptop?! It's a G551vw Asus gaming laptop. whenever I switch to high performance, my fps and...
  26. N

    Laptop screen won't come back on

    My power settings are set so my screen turns off after 2 minutes of inactivity to save battery. However, when my screen turns off I cannot get it back on again without turning the laptop off via the power button and turning it on again. I've tried hitting every key, clicking, pressing the power...
  27. P

    Solved! LG TV 37LD655H restart loop

  28. C

    Solved! Distorted screen after using

    HELP!! After using my laptop for about 5-10 minutes, the laptop hangs and shows vertical with distorted colors and stuff. The windows is inaccessible on that stage and the only way to turn the laptop off is to turn it off with the power button manually. I really need help. I'M JUST NEW HERE...
  29. D

    Public Meeting Sound Setup

    I work for a school district and am currently responsible for setting up a camera and managing the sound for school board meeting recordings. They often take place in gymnasiums or cafeterias (maybe even a gym-eteria) The equipment we have was picked well before I started and I'm curious if...
  30. G

    Looking for best solution to fix my battery.

    my laptop battery says it was plugged in and charging but the power is still in 0% and not increasing.
  31. D

    Laptop Freeze after 10 minutes when plugged in

    Hello, i brought a Laptop last year in january 2018 and worked fine, after 7 months my Laptop started to Freeze after 10 minutes of inactivity (only when plugged in) and after the freeze (2-4) minutes my Laptop automatically reboots. After few weeks this problem was solved, i don't know how then...
  32. I

    Factory reset of Galaxy Tab A

    I tried to this but it just got stuck downloading. I was waiting for this for hours. I ended up powering to off, although it says not to, I waited 16 hours. Now it will not power on. It had not battery power when I did it, but the unit was plugged in. Would this have something to do with...
  33. J

    Locks at password

    Tablet will reboot using power and volume buttons, it then asks for password and locks up and then goes black
  34. A

    Solved! Pls help! My HP Pavilion screen is blank (not displaying), but fans working fine, and keyboard lights seems OK

    Since yesterday, I can't power my laptop. I've tried different methods, but none worked yet. Here is the problem: After pressing the power button, the keyboard lights on; The CAPS lock and NUMBER lock lights starts to blink; But the screen will not display anything; Moreover, the system won't...
  35. M

    On then off TV power

    My 1994 50 inch hitachi won't stay powered on.
  36. R

    flashing blue power light - reboots

    I'm working on an Acer E5-511P-C9BM, I've tried most everything that people have listed on here. The power (blue) will come on, along with the fan, momentarily and then go off. It will continually cycle this way. I've pulled the memory, hard drive, battery, hard reset the system as indicated...
  37. 2

    My rca tablet is not working when I hold the power button and the volume down it doesn't take me anywhere

    When I hold the power button and the volume down button it does not do anything.
  38. A

    ASUS Laptop stuck sometimes

    I have ASUS Vivobook X407UF with windows 10 home installed on it. Sometimes it stuck. I don't know the trigger because it's randomly stuck. Sometimes when i open firefox or when i watch video or when i type in microsoft word. But, when i'm on battery mode, i try to plug in the charger and the...
  39. H

    Solved! How do I upgrade My tecno c8 camon

    Any time I power my tecno c8 camon on it alway show upgrading android.......what can I do to stop thia
  40. T

    Solved! Is it possible to use a 12V3A (36W) power supply for a 20x2W stereo amplifier without any problems?

    Hello, I have 2 of the mentioned power supply, and I have an amp thats rated for 12V 2x20W, and an other one which is rated for 12V 2x50W. Is it bad for the amps to use them with a power supply like this, or I should buy a bigger one? (I know it's gonna be "less effective", but that's not the...
  41. P

    Solved! Dell Inspiron 15-7559 Charger Port Damaged

    Hi and thanks for reading, I cracked the bezel of my Dell Inspiron 15 7559 which now prevents the charger from connecting ]to AND remaining in the port. I feel that the port might have been pushed deeper into the computer than it should be. I'm thinking that I'll have to open it up, re...
  42. R

    Solved! hp pavilion entertainment notebook has not been used for while. i tried to turn on but it wont turn on. power light and charge

    Laptop wont turn on even when plugged in. no lights showing on front of laptop saying its charging or power on. do I need new battery and charger
  43. T

    how do i take the battery out of the asus r541n?

  44. C

    Solved! Pioneer elite remote only works with vol and power button on ant mode

    Hooked up ant to cut cable. Remote only works for vol and power. Pioneer elite plasma tv
  45. D

    Solved! Laptop Not Turning On

    Hi. I have a Lenovo Thinkpad SL140, and it will not turn on. When I connected the charger to the laptop, the battery indicator would flash green a single time, turn off, then turn solid green. The laptop would not turn on even with the charger plugged in. No other lights, drive noise, fans...
  46. A

    Solved! My tablet f107 power key won't turn on to home screen until i insert it to power bank before it comes up to home screen and my

    My tablet f107 power key won't turn on to home screen until i insert it to power bank before it comes up to home screen and my volume keys are not working please help....
  47. K

    Clean DC jack with no visible marks or crumbs etc.

    So, my laptop stopped working a while ago. So I held the power button and plugged in the charger. But soon I realize that I have to apply pressure to the charger for it to actually charge my laptop, and my laptop still isn’t really charging. So, I was just wondering if it has to do with the DC...
  48. S

    Solved! My vizo TVE48 - C 2 Power on and off button is broken and I don't have a remote how can I get my TV on?

    My video TV model number E48 - C 2 Power button is broken and I have no remote how do I get my TV powered back on?
  49. B

    Solved! Blinking Lights on my Lenovo Laptop

    Hello I have a Lenovo ideal pad 100-15ibd and I recently had the power Jack replaced cause the old ones prong broke off well since it's been replaced it hasnt been wanting to turn on when I plug the charger into it it does charge it but now the power white light is blinking every 7 seconds same...
  50. C

    Solved! LG smart TV - power button problem

    Why is my LG smart TV power is coming on an off with no Picture or sounds. A few days ago it would show a black Screen but no p
  51. L

    Solved! MY dell latitude laptop power button is on but it's not coming up. No display. I have tried to remove the battery and Press's

    The power button light is on. But the laptop not coming up. It's a dell latitude. I have tried to disconnect the power cable and remove the battery still doing the same thing
  52. M

    Solved! My computer shows blue colour and cursor when I power on

    My Dell Vostro 1510 using windows 7 shows blue colour and cursor when I power it on
  53. P

    Solved! My Laptop keeps on shutting down when switched on

    My laptop keeps on shutting down when the power is switched on
  54. ririx4268

    Solved! laptop troubleshooting help!

    my laptop has froze for the first time ever browsing 9gag, it Completley froze. nothing worked, it wasnt an unresponsive program. even holding the power button for 10-30-60 seconds didnt do the trick, i had to poke the force shutdown button through the hole on the back, im pretty sure its just a...
  55. B

    Solved! Shows lenovo startup but keep on restarting

    So i was rebooting my laptop and suddenly it turn off , i pressed the power button but nothing happened but after 4 5 hours it opened by itself now my computer shows the Lenovo startup logo but keep on restarting. I cant turn it off do nothing just it restart again and again.. help me out.. tech...
  56. A

    Solved! How much power comes out from the phone aux

    I want to connect some speakers for my phone aux... they are 0,5W and 32Ohm. Can I do that? I need to have loud speakers from my phone aux.
  57. D

    Acer Aspire ES 11 won't start

    Power won't turn on, yet the battery is not drained. It just blinks blue everytime I push the power button. I charged it for an hour and got the charging light blinking too. I unplugged it and surprisingly, it worked. After some hours, it happened again. The unit can't be turned on, the power...
  58. J

    Solved! Samsung Laptop Power Issues

    Hi, I got a laptop the other day (Model Samsung NP550P5c) with unknown faults. I did the usual troubleshooting methods and the laptop does work but not without issues. I bought a new battery and a new charger both with the ratings needed for the laptop and i'd tested them on my other Samsung...
  59. G

    Get Anker's Excellent Qi Charger for $19 While You Can

    Qi-certified charger works with Apple and Samsung flagships. Get Anker's Excellent Qi Charger for $19 While You Can : Read more