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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4
votes
3answers
520 views

Danger/risks of switching off the power of a connected USB drive?

I have 2 external USB hard drives which are always connected to my laptop. The reasons are mixed; I need them so often and I'm too lazy to plug/unplug them again and again. However I'm concerned ...
0
votes
1answer
53 views

Motherboard Running on Li-Po Batteries Rebooting Randomly

 I am using a MSI Z87I AC motherboard with an Intel Core i7 4770T (2.5Ghz 8MB 4C 8T) processor, 2GB of DDR3 RAM and a 32GB SSD. This setup is used on my autonomous underwater vehicle. The power ...
0
votes
1answer
134 views

System Crash with graphics

I have two Nvidia GeForce GTX 660 cards (one MSI and one gigabyte) and they both have 2 GB onboard RAM. To go with this I have an Intel core i5 3550 (@3.30GHz). Also, I am running Win 7 64 with 32 ...
0
votes
0answers
61 views

ATX Standard for Wake-On-LAN

I've read about the implementation of the "Wake-on-LAN" feature on Wikipedia. The article claims that at least an ATX 2.01 standard-compliant PSU is necessary. Quite alot of other resources on the ...
1
vote
2answers
151 views

Accidentally got a little bit of water in uninterruptible power supply outlet; just let it dry, or trash it?

So, I had some water in my home office, I know that wasn't very responsible, but let's not point any fingers here. Long story short, a bit of water ended up spritzed onto some of the actual plugs of ...
0
votes
0answers
54 views

What controls the RAM voltage value?

Quite simply, is the RAM module responsible for generating its own operating voltage or does it just run at whatever voltage the motherboard is providing? I am imagining that it could either ...
0
votes
1answer
51 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 ...
0
votes
0answers
113 views

PC shutdown suddently. Power LED blinks and PSU fan is on

I'm having a problem with a new computer with MSI motherboard and AMD APU processor (I don't remember the details). When I start some "heavy work" (like a maps generator made with Python, or a batch ...
0
votes
0answers
26 views

Two separate motherboards exhibiting different issues with same CPU

Recently one of my home build computers that the family uses shut down unexpectedly. I tried to reboot it several times, with the first couple it attempted to boot Windows, and the last few it ...
0
votes
4answers
106 views

Is it necessary to use UPS? [duplicate]

I'm current using Corsair VS 550 (550 watt) power supply unit ,but i don't have any UPS. Is there any chance that my power supply unit and hard disk could be damaged for not using any UPS.can anyone ...
0
votes
0answers
36 views

Power surges after installing graphics card

Power surges happen a few times a day (I think this is already an alarming rate) when I play games, say The Sims 4. When I play, the computer just reboots then my ASUS Motherboard tells me that it has ...
0
votes
2answers
120 views

New computer won't boot at all

I have just bought a brand new computer in parts. I assembled it and tried it, but it is not booting. Parts: Intel Core i5-4590 2 x 4GB of Kingston HyperX Genesis RAM Gigabyte Z87-DS3H Asus nVidia ...
3
votes
1answer
428 views

Custom built PC shuts down ONLY after a game starts. What's wrong with my PC?

Whenever I boot up a game that is directx dependent, my PC loses power and reboots automatically. No intermediate warning of a reboot/restart, either. I have played non directx based games fine, such ...
0
votes
1answer
35 views

Can I use my iPad charger to power speakers rated 1.2W? [closed]

They are USB-powered but I want to play music from my ipad which can't supply them with power so I need a power supply. I was wondering if I could simply use the iPad charger to power the speakers. On ...
2
votes
0answers
96 views

Is it possible to combine fanless, flex-form and a power output more than 300 Watt in a ATX PSU? [closed]

For the construction of an embedded System I look for a fanless ATX Power Supply that is build in flex form-factor and has a power output more than 300 Watt. On the Internet I found a few power ...
1
vote
0answers
77 views

Should you worry about high voltage and wattage on a non-overclocked computer?

I've been wondering if I should be worried at all about high wattage or voltage on a non-overclocked computer. I say non-overclocked because when I Google search this question or something similar it ...
1
vote
0answers
17 views

Cursor hangs for a second when turning off sound system from the powerstrip

I have a curios hardware issue that I'm worried about. I have my desktop plugged into a regular power strip without surge protection or on/off switches. In one of its plugs there's another power strip ...
0
votes
1answer
53 views

What are the consequences of using a smaller power brick on a laptop? [duplicate]

I have found many similar questions, but no one fully satisfying. Please correct me if wrong, but from what I understand the Voltage of the power supply should match closely the specs, while the ...
12
votes
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
149 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
68 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
votes
0answers
49 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
230 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
151 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
36 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
42 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
80 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
100 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
132 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
204 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
125 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
217 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
140 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
810 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
342 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
445 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
56 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
69 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
217 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
455 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
182 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
248 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
44 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
207 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
398 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: ...