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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Random shutdown on aspire 4935G

(on AC(with battery plugged) or AC only) the laptop just random shutdown without any notice when.. -left idle for some time -but this problem don't happen when the cpu busy like playing games,or ...
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1answer
129 views

ATX Dell PSU to Offical ATX 2.0 spec pinout

Hey all I am using an old Dell Precision R5400 which has the 750w hot swap-able power supply. Problem being, since its a dell, the ATX pin layout is different than that of a normal, standard ATX 2.0 ...
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2answers
76 views

Accidentally plugged 6+2 PCIe into ATX 12V port, is everything damaged?

I haven't done a build in a long time and today just plugged the 6+2 PCIe into the ATX 12V port (why, given the simplicity of keying these plugs of this format, especially when a mistake can lead to ...
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2answers
74 views

Computer Randomly Powers Off. What's The Cause?

I upgraded my computer a month or two ago now and now every so often, my computer will randomly shutdown (and then restart after about 5 seconds). To clarify, it usually shuts down when coming out of ...
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1answer
209 views

How to determine if there is enough power supply wattage for a video card?

I'm a complete newbie to computers. I recently found a graphics card that takes a 300 watt power source and I don't wish to spend $150 dollars on something that won't work or will break my computer. ...
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1answer
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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0answers
49 views

Laptop not charging when running OS/BIOS, charges when off

I am facing this problem in my laptop since last 3 days or so. Make : HP Envy Touchsmart 15 (Core i7, 4700MQ), approx 1.5 years old. The problem is that whenever I am running any OS (Win/Ubuntu), ...
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0answers
33 views

Second PSU shuts down by itself under load

i have 2 PSU one 650watt to hold my i7-2600k 2hdd's and 1(out of 2) r9 290,the second PSU is 340watt and has only my second r9 290.When i load a game then the second psu shuts down and i get a bsod ...
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1answer
67 views

PC restarts on power outtage despite having a UPS

Unfortunately where I live I do not have 24/7 electricity. My new PC rig which is considered to be a high-end(gaming) system is connected to a brand new APS/UPS that have these specs: DC-AC ...
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0answers
42 views

Testing my PSU, and GPU

Bit of a complicated situation people.. But my main question is my PC seems to be running on my psu but it has a problem with my graphics card. It needs two six pins to run it.. The card runs on my ...
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2answers
97 views

PC black screen and fast fans

so I've had big issues with my computer for about 2 months now. After 2 years, my video card seemingly died, so I bought a 280x as a replacement. Well after 2 months, if supposedly failed as well, so ...
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1answer
49 views

Graphics card possible power issue

I had an nVidia GTS 8800 that stopped working suddenly. I thought the card had just died so I purchased a Sapphire Dual-X R9 280X 3GB GDDR5 card to replace it. The new card does not work either. ...
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0answers
44 views

Can PSU force my PC to restart?

I recently had a problem where my PC restarts after watching Twitch channels or playing games. It looks like PC lost power and then booted back up. My specs are: CPU: Intel i5 3570K @ 3.9ghz [OC'ed] ...
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1answer
126 views

Is it a PSU or motherboard failure? Or something else?

My desktop computer suddenly stopped working today. When it happened, the fuse in the house was also knocked off. After switching it back on, I tried to turn the computer back on but nothing happened ...
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0answers
61 views

Laptop won't start properly after I spilled water on my laptop?

Usual story: accidentally spilled water (just water, thankfully!) on my laptop - dried it out as best I could, left it overnight in front of a fan to drain and then the next day, took it apart to see ...
2
votes
1answer
189 views

Power supply unit for Intel server motherboard S1200v3RPS with Xeon E3 processor. 5-pin aux power cable missing

I am trying to put a server together to install Ubuntu. I bought an Intel S1200v3RPS motherboard and plugged an Intel Xeon E3 processor on it. I purchased a 1U chassis from Supermicro with a ...
2
votes
1answer
59 views

my power supply died dramatically; is it safe to simply replace it? [duplicate]

my power supply died last night rather spectacularly: blue sparks, popping sounds, a smell of burning plastic. the computer shut down, then tried to start itself up again, and sparked and popped some ...
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2answers
55 views

my PC isn't reacting to the power button & not displaying anything

i've moved to another house , and today i just plugged in my pc's power cable ,then my pc (HP COMPAQ desktop) turned on as if i pressed the power button) ,but it doesn't show anything on the monitor ...
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0answers
128 views

ASUS Anti-Surge Protection? [closed]

Recently built a new PC, here are the specs: MB: ASUS Z97-A PSU: Corsair CX600M CPU: 4690K GPU: Gigabyte GTX 970 G1 Gaming SSD: Samsung 120GB 850 HDD: WD Caviar Blue 1TB RAM: 2x4GB HyperX ...
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1answer
97 views

Why does laptop's battery drain only when I am playing Minecraft?

I got a new power supply/cord for my Asus N550JV-CN191H, after my old one tore. The new one works fine, and the power indicator (Ubuntu 14.04) shows that the battery is charging, except when I play ...
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1answer
27 views

Is it necessary to use multiple PSUs?

I recently bought a used Server (hp proliant dl580 g5) for home use. It has two Power Supply Units. Is it necessary that I have to power up both in order to use it or can I simply ignore one and use ...
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0answers
54 views

Headphone Jack Messed Up Audio [possibly jack power supply?]

I'll get right to it: When using earbuds (plugged only into my laptop's dedicated headphone jack), the sound coming out is distorted. Sound cuts in and out and has a strange "echo"-like effect ...
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0answers
29 views

Power issue, turned off once will not turn back on [closed]

I have had this computer for less than a year, but I built it. It is my first rig. The computer has been performing well-- very well in fact, but just earlier today I tried shutting it off from the ...
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1answer
33 views

Laptop turned off without charged

I have a Asus N55SF laptop, and always when I unplug my device from the charger it immediately shuts down - the battery decreases from 100% to 1% in few seconds. Perhaps the problem is with my i7 ...
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0answers
65 views

PC shutting down every 30 minutes

I changed my graphics card and PSU today (went from 650Ti to GTX 770 and Thermaltake PurePower 430W to OCZ GameXStream 600W). I plugged these components in, at first I didn't fit the 20+4 pin ...
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2answers
50 views

computer suddenly loses power: no event of the shutdown [closed]

I'm looking for some diagnostic advice. computer was assembled 2 years ago, no issues since. symptoms: computer randomly loses power (usually happens in 2's. IE computer suddenly loses power. I ...
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1answer
128 views

Is it possible to power a SATA drive from an 8-pin PCIe power connector?

I have a Dell Precision T3610 workstation that currently has two 3.5" SATA HDDs installed, and I'd like to add two more 2.5" disks in a hot-swap bay. I have two free SATA ports, but I'm struggling to ...
1
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2answers
68 views

Computer turns on fine every day except Sunday. (Maybe due to not using it for a while?)

For over a month, I have come home from a Saturday 16-hour shift on Sunday morning to find that my computer won't turn on. Every day of the week besides that one, the computer runs flawlessly. I ...
1
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0answers
38 views

PC gets powered up only sometimes [closed]

This is one of the most bizarre hardware problems I have ever had, since the 80486 days. Perfectly working PC with a Gigabyte UD2-P55M and an i7, Kamariki IV power supply. I go away for 10 days ...
1
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2answers
28 views

Existing power supply supported by new motherboard

Essentially, I'd like to confirm that my Silencer 750W Crossfire power supply is supported by the Asus Z97-A. The motherboard states 24-pin EATX Power connector: ...
0
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0answers
42 views

Can a PCI-E cable that splits into two…be used on different PCI-E devices?

The way my Seasonic X-1250 PCI-E cables are designed is... There's one end which is a single cable with a 12 hole connector...that goes into the PCI-E port on my power supply. But then the other end ...
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0answers
91 views

Computer crashing when I play games

Specs: Intel Core i7-3930k Corsair H70 CPU Water Cooler 16Gb DDR3 G.Skill 4x4Gb 1600Mh 120Gb Intel 520 Series SSD 2Tb WD Caviar Green WD20EARX SATA 6Gb/s 64mb Cache SATA3 AMD Radeon R9 ...
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0answers
21 views

Just curious about these pcie cables that comes with these power supplies

My corsair 850 died on me but I still have the cables that comes with it I ordered a evga supernova 1300 g2 and wondering if it's safe to use the corsair pcie 6+2 cables on a evga supernova or should ...
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0answers
50 views

Can I make a 4pin EPS12V to a 8pin PCI-E adapter

I need two 8 pin pci-e for a graphic card, however all I have left is two 4 pin molex and a 4pin EPS12V. I've got two dual molex to 8pin PCI-E adapter what If I cut one of them, cut the male EPS12V ...
3
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1answer
366 views

Is using a powered USB hub Raspberry Pi DC power and USB data a good idea? Or does it create an odd, circular dependency that could blow the hub?

I have Raspberry Pi model A which has only one USB port. So I bought the cheapest electrically powered USB hub (AC adapter that has an output of DC 5V at 1000 mA) I could find—kind of in the spirit of ...
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2answers
157 views

When laptop battery on “High Performance” it stops charging the battery

I'm using an ACER Aspire 5750G and my laptop specs are: Proccessor: Intel Core i7-2630QM Display: 15,6 LED LCD Nvidia GeForce GT 540M - 1GB - CUDA Memory: 8GB HDD: 750GB SSD: 250GB Acer Nptity ...
1
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2answers
63 views

Unable to shutdown, who to blame?

My PC has always suffered from this problem: upon reboot, the power, instead of staying up and running until BIOS POST, most of the time (but not always, and that's why I don't think this has never ...
0
votes
1answer
64 views

2 GPUs with 6+8 pin connectors: does it help to use 4 cables instead of 2?

I am assembling a new pc and I reached the point where I need to connect the various power cables. I have 2 graphic cards, each with 6 and 8 pin connectors. I understand I have to connect both for ...
0
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1answer
27 views

My PSU vibrates audibly. Do I need to send it back?

I have a be quiet! Pure Power L8 530W, which has been working flawlessly for some time now (can't remember, perhaps 9 months?). Recently, it started making a low, vibrating noise which I can hear ...
1
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0answers
97 views

Dell Vostro 3560: 3NB8W3 battery not recognized, problems with charging

I've been using standard battery for a while, but finally I bought extended battery (3NB8W3, 11.1v 8700mAh 97Wh). Sadly, my Vostro 3560 does not recognize battery properly. I always have "Plugged in ...
1
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1answer
74 views

How does dual PSU setup work?

This just an academical question, I am not looking to buy anything, I would just like to understand how it works. There is a number of dual PSU servers, eg. they have 2 power supplies, each running ...
0
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1answer
93 views

Re-route laptop dc power jack to a usb port [duplicate]

Because many times my laptop powers off after some movement around the power jack, I thought I would re-route the internal power cables that ends up in the DC power jack, and fit them into a USB. Then ...
1
vote
1answer
63 views

Reduce power usage while computer is “off” [closed]

Recently I bought a device to measure the wattage from devices. To test the apparatus I measured 6 watts from an IKEA LED light bulb which was supposed to produce 6 watt usage and a few laptop ...
1
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1answer
161 views

How to judge if a laptop charger noise is a safe “hum” or a dangerous “crackle”?

I've read existing questions and answers on noises coming from laptop chargers (e.g. http://superuser.com/a/104860/112639 and http://superuser.com/a/832501/112639 and have learnt that there are two ...
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3answers
63 views

Computer fans turn on, but nothing else

I've done some google searches, but nothing seems to fix my problem. I just got a computer from a friend, saying that it wasn't turning on anymore. I took it home, powered it up, and viola! beep ...
1
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1answer
150 views

Computer time and bios resets everytime I unplug from wall

I am using an Asus P5GC-MX motherboard with a 700 watt power supply and I cannot figure out why this is happening. First I tried a new good brand battery with no luck. Next I flashed my BIOS and ...
0
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2answers
73 views

Power connector size for HP 15-d053cl TouchSmart Notebook PC?

Does anyone know what the inner and outer dimensions of the DC connector on the HP power adapter for the HP 15-d053cl TouchSmart Notebook PC is? Also, the name of the connector type would help. The ...
1
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1answer
526 views

Lenovo Ideapad z510 crashes when connected to AC power but works fine with the battery

I use a Lenovo Ideapad z510 running Windows 8 x64 and earlier today, during a snowstorm, power went out. Later, power came back and I got on my computer. As I was using it, I — idiotically — lightly ...
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2answers
111 views

Computer won’t turn on [closed]

I woke up this morning and my computer won’t switch on. I have tried to do the screwdriver trick with the front panel connectors but even that won’t work. Any answers will be appreciated. Specs: ...
0
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1answer
24 views

New 450w PSU boots up but no post/signal from the motherboard

I have a problem reagrding my new 450w that's not functionning correctly, there is no post or any signal from the motherboard. I made sure that other parts are working. here is the config: CPU: Intel ...