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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12
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4answers
3k views

PC shutting down after 30 minutes, even when on BIOS screen

I have a desktop PC that is just over a year old that I use daily for work. It's running Windows 8.1, has 16GB RAM and an i7 CPU. It has a 256GB Samsung 840 SSD (Windows + programs) along with a 1TB ...
0
votes
2answers
133 views

Is my GPU or PSU going out?

So, the screen started showing artifacts and then suddenly went out but the sound was still working. Thinking it was just the game I was playing, I tried to ctrl+alt+del, esc, and alt+f4 out of it but ...
1
vote
0answers
67 views

Usb ports connecting and disconnecting

I know this is not the place to ask about hardware problems and solutions, but I can't search on google anymore... I've been for over 24hours searching on google about my problem and trying to get a ...
0
votes
0answers
16 views

Low voltage fluctuations [duplicate]

recently there have been electricity fluctuations in my house (which is "expected" to be solved soon . It's a problem in a sub-station) . To give you an idea , the lights in my house goes pretty dim ...
0
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0answers
44 views

Power Supply vendors/part numbers for Promise NS4300N?

Good morning all! My problem is relatively simple: I have 2 Promise NS4300Ns, both have dead power supplies. Disassembling a 3rd yielded a Mini-ITX format power supply with a proprietary power cable. ...
1
vote
0answers
202 views

Laptop with loose or failed DC jack, burnt but still functional motherboard [closed]

I have an ASUS G74SX laptop. Over time the DC jack deteriorated, probably by coming loose. The laptop would not charge unless I oriented the power cable in a particular way. Eventually, it started to ...
-2
votes
3answers
133 views

What do OUTPUT charts of PC Power Supplies mean?

I'm looking at various power supplies and they all come with different output cables. They also have different OUTPUT charts, for example: What I'm wondering: What are these output columns are ...
0
votes
1answer
35 views

Computer quickly deactivates after turning on with boot on power in BIOS setting

Computer specs: Lenovo X220i Tablet running Windows 7 64 bit (I doubt knowing the OS will help, but just in case) In the BIOS I have enabled the setting 'power on when AC attached' so the computer ...
1
vote
2answers
41 views

UPS for PC for repeat power cycling

I am assembling a mobile test stand at work, which will be wheeled around from site-to-site within my building. It will contain data acquisition equipment, as well as a PC running software to handle ...
1
vote
1answer
75 views

What purpose has this tiny clip on my power cable?

With the Asus N550J I bought, I received an adapter which has a tiny clip attached to it: As it seems, the exact same cable fits perfectly in that clip, as shown below: On this page some usages ...
0
votes
0answers
53 views

Using netbook motherboard in PC build, need way to press power button from 7-8 inches away

I'm using the case out of an early Sega Genesis/Megadrive to build a low power emulation/media PC. The following picture is an aerial view. The power button is on the top right, but underneath the ...
0
votes
0answers
91 views

Reason for computer not booting when power button pressed

I have a following problem starting my desktop computer and I'm trying to figure out the root cause. Most of the time it will just start normally when I press the power button. On some occasions ...
0
votes
1answer
128 views

Can a complete blackout damage a computer?

just last night a blackout occurred while I was watching a video on the web. I've got my monitor and desktop computer plugged into an extension cord and then into a power strip/surge protector. Both ...
0
votes
1answer
191 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, ...
5
votes
1answer
123 views

Will using 2x2GB ram use more power than 1x4GB ram?

I've recently upgraded my ASUS K45VD laptop from 2GB memory to 4GB memory by adding a 2GB stick. Then I got problems 2 times. The first time, asus's service said that the mainboard is down and they ...
0
votes
2answers
185 views

Can a power strip being turned off and on again damage a computer?

I have both my computer and monitor plugged into an extension cord and then into a power strip (I've checked, and both the extension cord and the strip can handle the load and have been handling it ...
-2
votes
1answer
133 views

NVidia GeForce GTS250 driver issue

Recently at a lan party, I used a GeForce GTx560 for which I installed Nvidia's 340.52 driver which worked perfectly fine. At the time I was still using a 32-bit version of Windows. I have since been ...
2
votes
3answers
725 views

Graphics card overheating at 65°C

I ordered parts for my computer a few weeks ago. PSU: Corsair CX 430 CPU: AMD FX 6300 GPU: GeForce GTX 750 Ti RAM: 4GB 1600MHz x2 Motherboard: Asus M5A78L-M When I assembled them, I realized ...
1
vote
2answers
332 views

Computer can be powered on once after new SSD install

My computer has a strange behavior since I installed a new SSD (Samsung Evo 840). When I pushed start button the first time after connecting the new internal SSD everything was ok. I managed to ...
0
votes
0answers
134 views

Dell inspiron n4010 battery won't charge

I'm having a dell inspiron n4010 laptop. The battery was getting weak day by day and one day I used the battery to full of its capacity. From next day on wards the laptop won't power up with the ...
0
votes
1answer
423 views

Laptop does not turn on unless plugged in; battery works after powering on

I have a Dell Latitude D630 Laptop, which will only power up when the power adapter is plugged in. It will not power up on battery only. Once powered up I can unplug the adapter and it will run on the ...
-2
votes
2answers
51 views

changing charger port on laptop [closed]

Is it hard to change the charging port on my Acer laptop or do I have to take it to the repair shop? Is there any way to charge it without fixing that port? I only need to charge it long enough to ...
1
vote
1answer
67 views

IDE HDD + USB to IDE + PSU + AC cable = external HDD?

I have couple of 40 pin IDE HDDs which I want to use as external HDDs. Also I have old 300W PSU with AC cable and plan to buy cheap USB to IDE converter like that: I'm not sure if I haven't missed ...
2
votes
1answer
192 views

Multiple cable adapter setup not working - VGA to smartphone. All cables tested and work

Issue Pictured overhead projector setup does not work. #1 -> #2 -> #3 -> Phone. All cables are tested and work! The issue is the HDMI connection between cable #2 and #3. With all other cables, the ...
1
vote
0answers
408 views

Force Windows 7 to think it is running on Adapter Power and not battery

Anyone know how to make a Windows 7 Laptop think it is running on AC Adapter power? This laptop (HP G62 series) has a usable battery which holds charge but it has a not-official power adapter which I ...
-1
votes
1answer
59 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 ...
0
votes
0answers
25 views

Computer can't boot

I have a 1 year old PC and the last weeks, when I press the ON button the PC doesn't power on ( Like I didn't press the ON button ). I have to plug and unplug a few times the power cord in order to ...
0
votes
0answers
165 views

How to measure power consumption in Windows 8

I want to measure real time overall power consumption of my laptop and I would do it with a software. After some searchs on the web I found out that Microsoft developed Joulemeter, a software able to ...
0
votes
1answer
221 views

computer randomly restarting. both in game and out of game

first my specs are. AMD Phenom II x4 955 processor 3.2ghz 20gb ddr3 ram 4Gb Nvidia Geforce GTX 770 850w Corsair tx850w psu Gigabyte ud3 mobo Windows 7 professional I recently uprgraded my vid card ...
2
votes
1answer
43 views

Machine turns off with different graphics card; who's the culprit?

A machine that I own does run quite stable in its current configuration. It has been running with a GeForce GTX 295 for a couple of years. That card used quite a lot of power, produced lots of heat ...
1
vote
1answer
192 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 ...
3
votes
1answer
378 views

What is the name of the cable inside PC cases? [duplicate]

Due to limited linguistic and technical knowledge, I do not know (and can not find) the name for the 4 pin (or perhaps 3?) plugs that are used inside PC cases to deliver electricity. My questions: ...
0
votes
1answer
121 views

my power supply is 400w, do I need a 400w UPS? [duplicate]

my power supply is 400w, do I need a 400w UPS? my cpu is pentium g620 2.60Ghz,2gb 1333mhz ddr3 ram,160hdd,nvidia gt210 1gb gpu,400w psu samsung 22" LED
0
votes
1answer
41 views

Moving to Sweden, bringing my PC with me. Shipping and Power query [closed]

In a few weeks I'll be migrating to Sweden, I won't be taking much with me, but I've got a custom built PC I've spent over £1000 on that obviously I won't want to leave behind. Two questions: What ...
1
vote
0answers
138 views

My computer restarts automatically when there is power outage and the monitor is turned on, using UPS power

I have a Zebronics Power UPS which backs up the system power at the time of power outage. I have no issues with that. But yesterday night I kept a movie to download and slept turning off just my ...
1
vote
0answers
271 views

Computer crashes on startup of 3D games

My computer renders games similar to Minecraft just fine, but games with more intensive graphics like: Planetside 2 Tom Clancy's Ghost Recon Phantoms Skyrim it crashes the instant it needs to ...
1
vote
1answer
68 views

cpu's fan increases without reaching a settle point [closed]

I'm encouterning the followning phenomenon on the hardware side of a pc: When powering up the machine, the cpu's fan (cpu cooler's fan accuratelly) is starting to rotate, but it doesn't settle down to ...
0
votes
1answer
259 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. ...
0
votes
1answer
79 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 ...
0
votes
1answer
31 views

Does a modular power supply come with all the cables?

I'm looking to buy a modular psu, because a non modular one is a complete pain. I'm wondering if all the cables will come with the psu. This is the one I'm looking to buy. ...
0
votes
2answers
768 views

What kind of power supply will I need for 780 sli?

I have a GTX 780 and I would love to get another one and use it for sli, I was wondering what's a good powersupply wattage that I should get. I'm currently using a Corsair CX 600 Watt Power supply, ...
0
votes
0answers
36 views

How to make that computer turn on by external power on?

I have remotely controlled power supply, and I wish to implement cold reboot with it, for cases of unrecoverable hangs. Unfortunately, once power is off, computer is not turning on when power appears ...
1
vote
3answers
964 views

Why is my Windows machine restarting with Kernel-Power issues?

I'm experiencing lots of computer restarts (occasionally at very bad times, e.g. during a support call with a client). Digging into the Event logs gives me lots of Critical Kernel-Power errors: ...
0
votes
2answers
137 views

Radeon Graphics loud fan, unable to boot

I have an ASUS P6TD Deluxe with a Core i7 CPU (950 @ 3.07 GHZ), 6 GB Ram. I am running a PSU ANTEC 550 Watts. On it, I am running a quite new Radeon R9 290X. The system is booting of a Kingston SSD, ...
0
votes
2answers
162 views

Spilled coffee on laptop

Here is the story: When I woke up, I started my PC and went in the bathroom... when i came back i noticed that my keyboard is spilled with coffee and my laptop is turned off, I quickly wiped the ...
-1
votes
1answer
73 views

why wont my custom built PC boot? [closed]

I turn it on and the lights turn on the fans are spinning but no picture turns up, and when it's on it'll sound like its powering down and then it'll fasten up again and it'll keep doing this. My ...
0
votes
1answer
15 views

Overseas parts power compatability

I'm ordering parts for a new computer and they're way cheaper on Amazon, but I'm in New Zealand which runs 240V as opposed to America's 110V (I think). Will the parts be fine if I just get the power ...
0
votes
4answers
71 views

power button.Wont turn pc on or off

I have a custom made desktop which is 5 1/2 years old. The computer was working perfectly until I moved. After I set up the PC again, I couldn't consistently turn it on and off. When I did get it on, ...
1
vote
0answers
40 views

Make certain programs run when connected to power supply (laptop)

I'm running Windows 7 64-bit on a Lenovo Laptop (X220i Tablet) I was wondering if it was possible (and if so, how) to have a list of certain programs that will run automatically if you are connected ...
0
votes
1answer
79 views

Laptop power supply unit compared to PC power supply unit

PC power supplies are relatively huge compared to those used with laptops. But why is this so when a laptop today can have an equal level of performance as a high end PC? Are they both switching ...