A power supply is an electronic device that supplies electric power to another device, such as a computer, monitor or printer. This is achieved by converting wall power (or mains power) to a lower voltage, and in most cases also from AC to DC. Most power supplies also provide protection from ...

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HP 6910p battery charging very slowly

My laptop battery charge rate is very slow. It charges between 50% - 100% in almost 4, 5 hours. It's running normal on AC adapter without any problem but running very slow on battery mode. So can one ...
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63 views

PSU compability

I would like to ask a few questions about this PSU: RM Series™ RM1000 — 1000 Watt 80 PLUS® Gold Certified Fully Modular PSU Computer specifications: Case: Compucase 6C11BS-UT Motherboard: MB H77 ...
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236 views

HP Elitebook 8530p's CPU Increases to 100% when Plugged In

I apologize if this post is too long or doesn't describe the issue properly. I have absolutely no idea why it is doing this, apparently it is a problem with HP computers or a particular strand of them ...
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625 views

PicoPSU problems with BioStar A68N-5000

I build myself a low power NAS system and I'm trying to power it with a PicoPSU and an external brick power supply. When I turn on the power the case fan starts turning for a second and then stops ...
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2k views

Computer shuts down after a few minutes

So I spent all day yesterday trying to figure out what was wrong with my computer. The specs look something like this (before replacing the board): Z77 MSI M Power Samsung 840 Evo SSD 16gb Ram (2 ...
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187 views

my laptop is not charging when switched on

I have an satellite l735-11f laptop and i have been facing a problem where the laptop battery does not charge even when power cable is plugged in. I have noticed though that i am able to charge my ...
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76 views

PC crashes randomly after BIOS-Reset

my PC crashes randomly since 3 weeks - just turns off, no shutdown. no warnings, no errors BlueScreenView doesn't show anything (0 errors) no sound-warning Event-ID: 6008 System was shut down ...
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377 views

Hard drive not found after blue-screen

I met a blue-screen and then a problem saying "Hard drive not found" when I was re-booting my system. But when I plug the power cable of the hard drive and re-insert it, the system can be successfully ...
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118 views

Desktop Computer - One Second Shutdown

Hello superuser community. My computer just died on me yesterday, I've spent over five hours trying to figure out what broke but had no success. My computer's hardware CPU - Intel I5 2500K @ ...
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188 views

Computer doesn't boot after new psu installation

I've purchased a new PSU (Chieftec APS-550C) and installed it into my computer. After that my computer refuses to boot up: it spins up all the fans and drives, stays in this state for ~10 seconds ...
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715 views

CPU fan twitching phase leds blinking - computer won't boot

I have a big problem that I got today. Yesterday computer was "on" normally, I went to sleep without shutting it down. When I woke up, I heard a strange sound and was unable to bring it up from ...
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253 views

Gateway Power Supply - Cannot Desolder Broken Off Pins

I looked at a lot of forums and it appears that this is probably the best one to which I should submit my question. The long story short is that I have a Gateway power supply that has been broken off ...
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25 views

Power Supply may be going out

Could a screen go black after boot up or near boot-up due to the case Power Supply not putting out enough juice to run the computer when the OS comes on?
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106 views

Hard drive and NIC issues. Resolved from turning off power but not restart or shut down

I've had two hardware problems a few times over the last 2 months. First my NIC wasn't showing up in Windows XP even though it was registering ok in BIOS. I tried restarting and shutting down and a ...
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243 views

Computer becomes completely unresponsive, screen continues to show last thing on it. (Freezes?)

The problem has only occurred during gaming. The three games I've seen it happen on are osu, Minecraft, and The Sims 3. The games run completely fine, even at highest settings. Without warning, the ...
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939 views

Radeon HD 5670 power requirements

I'm looking at a HP PC HPE-510t, this HP PC only got a 300W power supply, how can it run HD 5670 video card, which requires minimum 400W power supply? The reason why I ask is because currently I have ...
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221 views

Troubleshooting desktop PC not booting if network and USB ports are connected

My current desktop machine is composed by: Intel q6600 Gigabyte EP43-DSL3 4GB DDR3 2HD S-ATA 750MB Seagate DVD-RW S-ATA Keyboard, webcam, headphones and the usual stuff connected to the USB ports. ...
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19 views

Screen pitch black after random shudown, Gpu's fans full speed.

This morning I went to power up my pc and BAM. My screen is pitch black. Noticed that Gpu's fans were at full speed. Switched to my moba gpu and well, it works fine. I cant understand if it's a GPU ...
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47 views

Computer shuts down randomly - suspected PSU or memory - which one is it?

I have replaced the motherboard and CPU after the old motherboard has died. Now PC is shutting down randomly (it doesn't depend on what sort of software I am running - could be working fine with Adobe ...
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50 views

Laptop battery - 100% available plugged in charging

I have a Dell Inspiron 5521 running Windows 8.1.Recently, I had replaced my battery.But my battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no ...
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35 views

Computer freezes and stutters when playing games

My computer whenever playing games begin to freeze and then begins to stutter. The sounds comes out of the headset, not the case. I thought it might be the PSU, so i changed the PSU. Thought it might ...
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34 views

Fried my motherboard/PSU?

I was experimenting with making a custom switch to start my computer, and I was using an LED toggle switch (I know now it's supposed to be a momentary) that needed 12v power for the light. ...
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2k views

Can I charge my laptop using a power bank using my laptop charger?

I have a Dell XPS-1530 laptop with a 9 cell battery. It's working fine but I was just wondering whether I could use a power connector or something to plug my laptop charger's 3 pin plug into another ...
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46 views

Laptop Turning On and Off

Just for a heads up, I am not computer hardware savvy, but I do have a basic understanding of parts and what they do. I have not replaced any parts other than the hard drive but that was before the ...
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165 views

New graphics card - System shuts down when gaming

I bought a new Graphic card yesterday, a Geforce GTX 970, and I swapped it with my old one. and I realize now that maybe I should have done some more research about it beforehand, as it seems there is ...
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69 views

selfbuilt pc shuts down and restarts. 1 long and 2 short beeps

I have built a new pc and I almost finished. When I turn the computer on I starts up but then shuts down again. The beeps I'm getting is 1 long and 2 short which I think is the video card or ...
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192 views

POST failure - Motherboard, PSU, GPU or other?

Last night, I was playing Far Cry 4 and had been at it a good hour or two when the sound suddenly broke up and stopped; next the PC switched itself off. It tried to reboot, but keep failing in a ...
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97 views

What size is the barrel connector required for a Sprint Airave 2.5 signal booster?

Can someone please tell me what size barrel connector tip is needed for ac adapter for Sprint Airave 2.5 signal booster?
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198 views

Case/PSU grounding, static causing reboot

I built a machine for work recently that is displaying two distinct characteristics. One: Yesterday, I was able to shuffle feet on our carpet, touch the front of the case, arc static, and the machine ...
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289 views

WD external hard drive turns off

I've got an external hard drive (WD500BMVU) that was dropped and now does not mount anymore if I connect it to my Laptop (Mac). When I connect it with the USB cable, the LED light goes on, I hear the ...
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103 views

Computer Hard Reset Issue

Wanted to get some feedback and ideas on a issue I'm having. Certain video games cause my computer to hard power reset (as in it powers off with no warning then turns back on). I've identified ...
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176 views

PSU has 2 PCI-e cables, and I don't know how to use their endings or if I need to use ONLY one cable

I've started to assemble my new PC and when I've finally attached my Gygabyte NVIDIA GPU (GTX 760), it needs some kind of PSU power, in the form of 6 + 8 holed socket. So far so good. My PSU (Cooler ...
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65 views

PSU starts and stops immediately. Need Help.. IS it faulty?

Yesterday when I switched on the PC it started and stopped immediately. I tried everything that I could. For PSU I jump started it by paper clip test. When I switched on the PSU, the fan started ...
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225 views

Battery 100% still charging

I have a Acer AspireV3-772G running Windowws 8.1. My battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no difference. Also I have bought a new battery, ...
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301 views

Hooking Microsoft Surface Pro 3 up to USB monitor

I have a Surface Pro 3 and I tried hooking up my Toshiba 14" USB monitor (PA3923U-2LC3) to it with the supplied USB cord. The Surface reported that the monitor was attempting to draw too much power. ...
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112 views

Computer dims immediately when remove power cord

I have an Asus Windows 8 computer. Very strange, whenever I remove the power cord, the screen dims immediately. And very dim. The battery lasts for five hours -- but not much use if the screen is so ...
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1k views

Toshiba Satellite C850 boot loop

I've got a Toshiba laptop acting strange on me. Any thoughts appreciated. C850-11C PSCC2E AMD E1-1200 APU Windows 8 UEFI Problem: Laptop cant restart. If i shut down the OS or restart, or it ...
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70 views

Upgraded Computer, Now It Turns Off Randomly/Won't Turn On

I have recently upgraded my computer and now it turns off at random times. Sometimes, I'll be on all day and there will be no problem. Sometimes it'll be a couple hours and it'll shut off. And ...
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443 views

Connect ASUS R9 280X to Corsair HX850

Need to connect an ASUS r9 280x graphics card to Corsair HX850 PSU. There are 6 pin and 8 pin power connectors on the graphics card and 8 pin PCIE power connectors on the PSU. Cables available for ...
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125 views

Advent T1 (All in one PC) - screen going blank

I have an Advent T1 (all in one PC) that suffered from the under powered 12v 15amp PSU issue outlined here The computer would run for a short amount of time, and then power cycle. I've replaced the ...
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178 views

My PSU makes a VERY LOUD NOISE when watching video in Firefox browser

After Firefox update now every time I watch video I have very loud noise from PSU. It is so loud that the first time I heard it I got scared. My friend told me not use a "stable" but get an Alpha. ...
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29 views

External hardware to emulate BIOS power management (stay off, turn on, last state)

I have multiple scientific devices, each with an embedded computer and a no-frills BIOS. The single feature I really miss is the power management setting that specifies what to do after power loss: ...
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606 views

Battery recharge functionality broken due to short in AC adapter?

I have a problem recharging the battery of my netbook, an ASUS Eee PC 1025C. Since last week the LED of the AC adapter doesn't light up when it is connected to the wall. The netbook won't turn on ...
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135 views

Computer crashes when streaming Team Fortress 2

New computer. Played TF2 for 15 minutes, computer crashed and on boot it said something like PC shutdown because of power supply surge detected. I fixed the problem by playing TF2 at the worst ...
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113 views

Connect a Codegen 200XA power supply to an Asrock H61M motherboard

I am trying to use some computer parts I found at home to build a computer for my parents. Currently I have a Codegen 200XA power supply, but it doesn't seem to have an ATX12V1 conector which I need ...
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25 views

POST Beeps - was my mobo playing taps? Now it won't power on

I have an Asus P5Q Pro Turbo mobo. I use it for a file server for home. It's in a case with a total of 8 SATA drives, mostly the green eco type, of various brands. Four are connected on the mobo, ...
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84 views

9 Bleeps Installing new GPU - Black Screen

BIOSTAR TH55B HD Intel i5 760 2 x 4gb ddr 3 ram 600W PSU 1TB Samsung HD105SI ATApi iHAS124 CD/DVD Windows XP I am trying to install my new msi radeon r6950 twin frozr iii However when I install it ...
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912 views

Tracking down the cause of a blue screen error (code 124)

I've been having problems with a blue-screening PC lately (BCCode 124), and I've been trying to track down whats causing it. I had the idea to run a bunch of stability tests to try and isolate the ...
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97 views

PC will not power on with normal power supply

My ASUS M2N-SLI motherboard would not turn back on after running fine for 5 years. Connected a new (still in the box) 430W power supply - ATX 2.1 - the system powers on. The power supply doesn't have ...
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1k views

eeepc 701SD 4G Power Up Fails - Will not power up / boot

I have a critical failure with my eeepc 701SD 4G: Will not power on at all. - Power button pressed = nothing happens at all. absolutely nothing. - Battery light shows orange and doesn't charge - ...