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 ...

learn more… | top users | synonyms (1)

0
votes
0answers
7 views

Coil whine - Corsair CX750

I have a Corsair CX750 and it's terrible loud (High pitch coil whine). I want to ask two questions: 1: Is this a general problem with Corsair's PSUs? 2: I need about 750 watts, can you recommend me ...
1
vote
1answer
19 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 ...
-2
votes
0answers
11 views

Can this PSU do me well with other components? [on hold]

Can this PSU CHIEFTEC GPS-600A8 600W Smart series do well with my other components, because im going to upgrade my graphic card to MSi N760 Hawk OC. CPU: Intel i5 3570k @ 3.8Ghz [OC'ed] MOBO: Msi ...
0
votes
1answer
37 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. ...
0
votes
0answers
26 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] ...
-1
votes
1answer
22 views

low profile gpu 280W PSU PCI 25w [on hold]

I have this list of low profile GPUs: HD 6670 - max power 66 Watts PSU 400 watts & 27amps HD 6570 - max power 60 Watts PSU 400 Watt & 27 Amps HD 6450 - max power 18 watts PSU 300 Watt & ...
0
votes
0answers
29 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 ...
0
votes
0answers
43 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 ...
0
votes
1answer
28 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
30 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 ...
0
votes
2answers
37 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 ...
-2
votes
0answers
22 views

Intermittent game controller .

I use a Logitech Extreme 3D Pro joystick (wired USB) to play TrackMania and recently bought two new ones (for two locations) but since connecting them I have noticed that when using button 0 (main ...
1
vote
0answers
36 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 ...
1
vote
1answer
50 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 ...
-1
votes
1answer
19 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 ...
0
votes
0answers
22 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 ...
1
vote
0answers
26 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 ...
-1
votes
0answers
27 views

Graphics Card causes PSU to reset?

I'm not amazing with computer hardware, I do understand the basics but I need some help! I just moved houses, and came to find out that my computer wouldn't work. The issue at the beginning was that ...
0
votes
1answer
21 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 ...
1
vote
0answers
46 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 ...
-2
votes
0answers
10 views

Is it possible / safe to temporarily use a PCIe graphics without a PEG connector [duplicate]

I'm probably going to regret asking this, but here goes... I've got older Corsair modular PSU and I have lost the PEG cable for it so I have ordered another one. What I would like to do is install my ...
0
votes
2answers
35 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 ...
0
votes
1answer
42 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
vote
2answers
55 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
vote
0answers
24 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
vote
2answers
20 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
votes
0answers
22 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 ...
1
vote
0answers
38 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 ...
0
votes
0answers
20 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 ...
0
votes
0answers
16 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
votes
1answer
95 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 ...
0
votes
0answers
40 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 DVD Super Multi DL drive ...
1
vote
2answers
54 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
43 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
votes
1answer
25 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
vote
0answers
28 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
vote
1answer
27 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
votes
1answer
45 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
50 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
vote
1answer
55 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 ...
-1
votes
3answers
47 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
vote
1answer
84 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
votes
2answers
29 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
vote
1answer
153 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 ...
0
votes
2answers
66 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
votes
1answer
14 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 ...
2
votes
1answer
69 views

HP 4530s laptop works with power cord but won't charge battery

Suddenly, two days ago my HP 4530s laptop stopped to be able to charge its battery. Since I was noting that the whole battery was dying since some weeks ago, I bought a new one. Either with the old ...
0
votes
1answer
77 views

DC-input motherboard How does HDD get power? — ASRock H81TM-ITX

This may be quite a simple question, but I do not know much of anything when it comes to building motherboards, voltages, wattages, and power. I am looking at this board - ASRock H81TM-ITX ...
0
votes
1answer
243 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 ...
0
votes
2answers
24 views

Green light on my laptop adapter continues to glow for 2 to 3mins, even when it's not charging

I can see a Green light on my dell laptop adapter even when adapter is being used and connected to a power source. As per my knowledge this idicates that adapter is plugged in to power source and ...