0
votes
0answers
25 views

Would intermittent contact with the service voltage and capacitors in a power supply (inrush current) damage a computer?

If I plugged my laptop AC Adapter power cable into a UPS, causing sparks to blast out (and being unable to insert it due to the UPS being seemingly not designed for this type of plug, for whatever ...
0
votes
0answers
58 views

Agghhh! UPS Back-Up, Laptop Charger, Sparks

Boy… ok. This is so frustrating! Ok so, I've been getting a whole lot of problems with the electrical grid here lately: spikes, surges, lows, brown-outs, all kinds of problems, it's terrible, ...
0
votes
0answers
14 views

Computer starts and shuts down. After pushing the power on, it functions normally

Enviroment: * I have a working room with a common power switch for all the room. Every time I leave the room I switch the power off. * In this room I have a Fujitsu Siemens computer running Windows ...
2
votes
2answers
52 views

Dangers of using external power source with internal hard drive

Is it okay to connect a internal hard drive (IDE/SATA/SCSI) to an internal controller (e.g. on-board the motherboard) and supply the power via another power supply or an external unit like the one ...
3
votes
1answer
138 views

How to draw 12W DC output from PC motherboard/PSU/USB?

I recently bought a Dell AX510 Soundbar speaker that fits snugly under my monitor. However, my monitor, Dell IN2030M is a budget model, and while it does have the plastic grooves to fit the ...
0
votes
0answers
24 views

ATX PSU: Pin 9 reads a lower voltage when plugged into motherboard

I'm pretty confident that the PSU is bad in this computer, but I want to understand what my multimeter is telling me. With the PSU plugged into the wall only, the multimeter says that pin 9 is a ...
2
votes
2answers
119 views

Can using a under powered laptop charger make my notebook shut down under heavy load?

I have a XMG P501 gaming laptop based on Clevo P150HM models at the moment connected to an under powered laptop charger. It is shutting down when under heavy load (3dmark, some games in particular) ...
15
votes
2answers
828 views

Identify AC Power Cord with rotated pins

Is this AC power cord connector a standard one? The pins seems to be rotated 90 degrees. This ATX power supply unit (Silverstone ST1500) did not come with the cord and I am hoping to be able to get ...
0
votes
1answer
84 views

Can a laptop power adapter bought with a UK power cord be used with a US power cord?

I bought a Lenovo laptop here in the UK and am shipping it off to my girlfriend in the US. Can she use a standard US power lead for the lead that goes from the laptop power adapter to the wall outlet ...
1
vote
1answer
123 views

-48VDC power required: How to make it work with 110VAC input

I recently bought a used NetOptics TP-GCU-48V network tap on eBay for use on my home net. This is one of their earlier models and has been discontinued for a number of years. They have two versions ...
1
vote
2answers
61 views

Do power adaptors automatically adjust current and voltage?

I purchased a new power adaptor (19.5 V, 3.33 A, 65 W) for my Compaq Presario v3000 laptop, as replacement for the old one (18.5, 3.5 A, 65 W). It is listed as compatible with my laptop model. Does ...
0
votes
0answers
10 views

Debugging power on issue

First off I don't know if this is the correct fora, for this kind of question. My personal Acer Aspire 5745G has an issue, namely that it usually has issues powering on. The issue is that when the ...
1
vote
1answer
27 views

my computer doesn't charge; the plug on my computer doesn't work

my computer NEVER works on just pure battery power. It always has to be plugged in. It always says "0% available. Not charging" but again, will work when its plugged in. Is this faulty ...
0
votes
0answers
56 views

Powering a HP BL680c Blade Server Without a Rack

I picked up an old HP BL680c from a computer surplus store and have no rack with which to power it. The board seems to indicate that it merely requires 12V in. When I try to run it off of regular 12V ...
1
vote
2answers
93 views

Melting/smoking Universal AC adapter

So I own a Samsung RV520 for 2 years now and 3 months ago my AC adapter stopped working and had to replaced. I went to the closest computer service and they gave me an universal AC adapter. Now, the ...
0
votes
1answer
384 views

PSU Power Supply makes a high pitch sound when pc is off

Let me be clear about a few things. The power plug is plugged into the PSU (obviously) but the power switch is turned ON. If I turn off the switch with the plug is still plugged in, the noise or sound ...
1
vote
1answer
55 views

Computer won't start back up. [duplicate]

I unplugged everything from my computer a couple of days ago because I had to move it. After half an hour later I plugged everything back but my computer wouldn't start. It's a HP desktop. Here are ...
2
votes
1answer
57 views

Computer is OFF, and fans turn on and off twice a day

We have an OptiPlex 755 desktop acting quite strangely here. It's powered off, not in standby or hibernate, and from time to time it will just start spinning its fans for a few seconds, and then turn ...
1
vote
0answers
143 views

Can I Power the front-panel USB 2.0 ports with the power supply's 5V rail?

I have a high power (700ma+) USB device I wish to use on a single front-panel USB port. The USB specification in Wikipedia states: The USB 1.x and 2.0 specifications provide a 5 V supply on a single ...
1
vote
1answer
33 views

pc turns on but display nothing

I turn on my pc all the fans and leds working but no Beep and nothing on the display then on turn it off and on again it works fine with NO problem then I turn it off and the same scenario again and ...
1
vote
2answers
692 views

How do I determine the wattage of power supply needed to upgrade graphics card?

I've been trying to research my way into a new graphics card lately. I've decided i want the NVIDIA GeForce GTX 770 but am questioning a new power supply. At the moment I have a Dell XPS 8700 with ...
0
votes
0answers
106 views

New PSU won't power on with GTX780, works fine with 9600GT

A friend of mine had a PSU blow in the middle of other rotten luck, so I have him my PCP&C Silencer 910w and bought a SeaSonic SS-660XP2 (660W 80+ Platinum) as the replacement. It's a much ...
4
votes
1answer
8k views

What is the power output of a USB port?

As the title says, what's the power output of a USB port? Is it a standard value, or it may change depending on manufacturer/model, and so on? If that value is not standard, how can one determine ...
0
votes
1answer
73 views

Can as device that runs of USB be powered from a charger?

I have a Dreamgear PS3 Elite Gaming Headset that needs to be plugged into a USB port to power it, it cannot be used as just a "normal" set of headphones though it has a standard 3.5" plug as well ...
1
vote
1answer
101 views

Can I use two different PSU cables from the same brand?

I have an old rig and a new rig, the "old" one is using a previous generation AX850 (the ones with the gold writing on the side, not the red), and a new RM 850. I want to add a second graphics card ...
0
votes
0answers
70 views

Battery port/internal battery supply/motherboard problems in an Acer laptop?

I'm not exactly sure what one is wrong. I personally think that it's the charging port, but two different computer repair places have given me the following answers in the title. It's not my cord, ...
1
vote
1answer
2k views

Using multiple power supplies in one PC

I ordered a new computer and - as always - I think about upgrading it before it arrives. I thought about adding another graphics card, which would probably push the current PSU beyond its limits. ...
1
vote
0answers
71 views

When unplugged, the UPS plug gives out current. Is it bad? [closed]

We have several power issues in our house like : Occasionally loosing bulbs (in two holders, the light bulbs went out two times. If we put a new one, it will go out after several days. One went out ...
1
vote
1answer
47 views

Computer wont turn on immediately

Having an issue with my stack, I'll try to describe it as best I can. Was hoping for some advice from you kind people. I turn off my computer normally every time I shut it down, no programs running ...
1
vote
0answers
69 views

Trying to run computer off DC but monitor is always blank

I am trying to get a computer to run off a DC battery. The computer seems to start fine (the CPU fan spins and the hard drive whirs), but nothing displays on the monitor. It just stays blank, as if ...
0
votes
3answers
184 views

Computer sometimes doesn't boot after power failure, what should I replace?

I have a new computer that behaves strange after a power failure. When I switch off the computer it will not boot anymore. Completely unplugging the computer for about an hour cures the issue for the ...
0
votes
0answers
395 views

Laptop won't turn on after it was shut off. Is it dead?

I'm currently I'm using my laptop without battery because my battery was dead. I didn't buy a new battery because I don't have a cash for now. Since then sometimes I accidentally unplug or sometimes ...
0
votes
1answer
57 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 ...
1
vote
0answers
75 views

Should The Plug of UPS Always Plugged?

Which is better for lifespan: Switch off the UPS and plug off or Switch off the UPS and leave it plugged in. Consider this two statements and give seperate replies: Which is better for >1 Month ...
3
votes
1answer
96 views

Is my power supply dead?

I recently bought a new NZXT Phantom case and went ahead and moved all my components from the old case. It took a while to get some things in, and then to do a little bit of cable management (as much ...
0
votes
0answers
81 views

Game freezes and sound turns off for 2 seconds after light switch is turned off, can be reproduced

I have similar issue as this Question Weird things happen to my PC when light switch is turned off Each time the light switch is turn off in the kitchen while I am playing DOTA 2 the sound turns off, ...
0
votes
1answer
556 views

20+4 pin power supply to 24+4 pin motherboard [duplicate]

I'm thinking about making a small custom-build server. It would only use around 60W maximum. I don't want to pay too much so I think using an old power supply would work. The motherboard I'm ...
-1
votes
1answer
251 views

Fried ASUS laptop with universal charger?

Several days ago, the charger for my ASUS K50IJ laptop (19V, 3.42A) died. So, I bought an Omega universal charger with 11 different plug-ins, but I managed to first use the wrong plug-in (I later saw ...
0
votes
0answers
88 views

newly replaced laptop battery seemingly discharges

I am also referring here to Laptop battery holds charge, but won't charge any more. I may have the same problem but I am not sure, maybe DaBaer could answer me? The battery is a replacement ...
0
votes
4answers
189 views

PC power usage related to power supply

Not sure if this is the right place to ask such a question, but I don't see a more relevant place on stack exchange otherwise. So recently I've become kind of obsessed with becoming more efficient ...
0
votes
0answers
299 views

Asus k50ij won't start, power problems

I am trying to fix an Asus L50ij laptop. Symptoms: lost all battery, wouldn’t turn on on power cable. My first guess was the power jack, because the transformer was good. I opened it up but the ...
1
vote
2answers
555 views

Can I use a second power supply for hard drives? [duplicate]

I have an old Pentium-M based Shuttle PC that is great as a backup NAS solution at home, where I prefer low power consumption over speed. It only has two SATA ports. However it has a PCI slot and I ...
0
votes
1answer
204 views

I may have fried two completely different computers

I have two computers: my main one, and an older one. Currently, both are fully hooked up, and neither will respond when the power button is pressed or held. No fans, no lights, no sign at all. Prior ...
0
votes
1answer
98 views

Motherboard LED comes back on without PSU switched off

Wondering if anybody has experienced the following issue Shutdown Windows, PC shuts off, Motherboard Start LED remains lit Turn off Power via PSU rocker switch Motherboard LED takes 2-3 secs to ...
0
votes
0answers
252 views

Why is my UPS causing my monitor to make a high pitched humming noise

I recently purchased a UPS for a new server build for my home. Since the server sits next to my desk, I figured I'd plug my Macbook and monitor into the UPS as well. That way if the power goes out, I ...
2
votes
3answers
277 views

Is my PSU failing or is it my motherboard?

Let me first start by saying that I searched for other questions that matched my situation and I wasn't able to find any. So, here's my issue: Sometimes, when I turn on my desktop, it does not ...
0
votes
2answers
140 views

My computer runs fine until it shuts down. Then it needs to be unplugged before it will start again [closed]

Once started, it will run fine, for days on end. But once it shuts down, restart after an auto update for instance, it dies. When I try to start the computer, the fans sputter a little, but never get ...
0
votes
1answer
79 views

Computer keeps shutting off and turning back on

This just started out today. My computer will be working fine one moment, and then it will completely shut off instantly (No windows message or anything), and turn back on in the next instant. After ...
-1
votes
2answers
2k views

Replacement power cord for a Western Digital external HD. Can I use a different amperage on this one?

I lost the power cord of my Western Digital HD Model #: WD5000C037 S/N: WCAPW4090648, now, I can't find what is the right power cord since I don't have the specs, and while looking for it online, I ...
3
votes
2answers
283 views

PSU cannot provide enough power

I've semi-recently built a new Linux rig for A/V editing and the occasional gaming. On some games I've experienced consistent reboots with high graphics settings that, I believe, are due to PSU ...