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)

2
votes
1answer
40 views

Nvidia Gtx 960 blackscreen and loud noise, code 43:windows has stopped this device because it has reported prob

Nvidia gtx690 blackscreen and loud noise(sometimes). code 43:windows has stopped this device because it has reported problem. Currently i am using windows 10. I tried many methods. Including unplug ...
-1
votes
1answer
21 views

Can I safely put a PCI-E 6+2 cable into a 12v4 slot on Enermax 1000W PSU?

I have an Enermax Revolution87+ 1000W PSU. It came with a total of 6 PCI-E 6+2 cables. (and some other cables, but that's the one I need information about) The red 12v4 slot, which appears to be ...
1
vote
1answer
33 views

How to test graphics cards without a compatible PSU? [on hold]

I've recently been given five Nvidia Quadro 4000 graphics cards. However, I am uncertain wether they are in proper working condition. 3 are labeled as "defect", but I suspect this could be an easy ...
0
votes
1answer
494 views

WD external hard drive turns off

I've got an external hard drive (WD500BMVU) that was dropped and now does not mount anymore if I connect it to my Laptop (Mac). When I connect it with the USB cable, the LED light goes on, I hear the ...
0
votes
2answers
5k views

My Asus Laptop Power Supply is Broken — or is it?

System is an Asus N53S laptop. For several months I've been having the standard problem with a flaky DC plug that doesn't work unless it's positioned just so. Just to make life more fun, the battery ...
1
vote
1answer
22 views

What PSU can power a server board with only 2x 6-pin connectors?

Looking at half-width server motherboards for home-use, I noticed the Intel S2600JF doesn't have a 20-pin or 24-pin connector. Instead, it has 2x 6-pin connectors; see the lower right of the board, in ...
-1
votes
1answer
36 views

is it safe to power off SATA HDD?

I have an internal SATA Harddrive connected to USB through simple SATA to USB cable: ...
0
votes
1answer
19 views

Need some explanation about PC and AVR (Automatic Voltage Regulator) [on hold]

I have an AVR and my PC plugged into. I Live in Europe and the voltage in the mains is +-240V. The AVR has a LCD display showing the current input (mains) is 237 and the output voltage 210-217V. My ...
0
votes
1answer
392 views

Why does my Samsung laptop computer think it is unplugged?

Samsung laptop, purchased new in 2012. Windows 7 64-bit. 8GB RAM. Model NP300V5A. I woke up one morning and woke the laptop. I had left it plugged in to the wall the night before. When it woke, it ...
-2
votes
1answer
43 views

Is it safe to plug in a computer to a surge protector or a outlet? [on hold]

I noticed that my old psu connector cable blew up beacuse of unplugging it correctly like pulling the connector off it was just the rubber peelling off and other rubbers with metal inside with ...
4
votes
2answers
2k views

Why is the battery dead inspite of the full charge the previous day?

My laptop is 9 months old. In which I sparsely use the battery of the laptop as I am connected to the power outlet most of the time. This problem has started since 4 days. As per this post my system ...
0
votes
3answers
5k views

My GPU stops suddenly and get black screen

I have a Nvidia GeForce GTX 660 graphics card and a dual monitor setup. Sometimes my screens go black and get a warning like: Nvidia Kernel stops responding. I tried a lot of things; ...
-3
votes
0answers
10 views

Tech-com ups which all of sudden shuts down & immediately turning on which impacts on my cpu [closed]

Dear friends I have a cpu with amd processor where i have installed fl studio 12 like programs & for power back up I got Tech-com ups but the problem is while connecting my cpu to ups & when ...
1
vote
6answers
49k views

Computer doesn't turn on, motherboard or CPU?

So this morning my computer wouldn't turn on. Pressing the power button has no affect. When I turn off the switch at the back and push the power button after turning it back on it seems for about half ...
0
votes
1answer
26 views

Power supply or motherboard busted. How can I fix it quick?

A few days ago, my desktop PC just stopped turning on. Pressing the power switch elicits no response altogether. This is the sum total of the troubleshooting steps I've done: Super-newbily switched ...
2
votes
2answers
2k views

How do I deal with too few internal PCIe power connectors for a GPU?

I have an HP Z820 workstation and currently I have an Nvidia Quadro 600 (for display) and a GFX Titan (for CUDA computing) installed. The Titan takes up all the available internal PCI-Express ...
1
vote
1answer
2k views

Dell Latitude D620 turns off when power connected

I've got an odd problem with a Dell Latitude D620 laptop. If the laptop is running on battery alone then it works perfectly, however the moment you connect a power adapter to the laptop it shuts ...
1
vote
0answers
1k views

Dell Inspiron laptop not starting

I have a Dell Inspiron N5010 dual booting Windows 7 and Ubuntu. It was running fine earlier, but suddenly it started mistyping letters with multiple letters and special characters for one second and ...
0
votes
2answers
9k views

Can a faulty battery cause my laptop to shutdown even on AC line? (battery installed AND plugged in together)

Until recently, I experience something rather annoying (and troublesome) with my laptop. It spontaneously shuts down itself without any warning, it restarts. No blue screen, no hanging program, just ...
-2
votes
2answers
30 views

Desktop suddenly turned off and won't turn on again

My desktop suddenly shut down and it does not turn on again. I have tested the PSU with the paperclip trick and the fan started to spin. What do I do from here to know what is broken? There is no ...
-1
votes
0answers
19 views

Motherboard with EATX12V and PSU with EPS12V?

I have a motherboard that has a EATX12V 8-pin connector. I want to buy a PSu that has 1 x 8-pin EPS power connector (12 V) with detachable 4 pin ATX12V Are these compatible , i mean EATX12V with ...
0
votes
0answers
24 views

Printer and UPS (Uninterruptible power supply) are not friends [on hold]

I have an APC UPS. Don't know the exact model, but I've got it a few years back. It's connected to one electrical outlet. It is not networked in any way. Then I have a Samsung ML-2165W printer, which ...
3
votes
2answers
83 views

New build shuts down randomly - insufficient power?

I have an ongoing problem with my new build shutting down randomly. It is very sporadic: it can be 5 times a day, or once in 5 days. My temperatures are fine, I have tested the wall sockets and have ...
6
votes
5answers
257 views

Computer boots when I switch off the lights

I have more details regarding My computer boots up during the night. I got a used halogen lamp with a transformer and can reliably reproduce the following: Computer and lamp are running I shut down ...
0
votes
3answers
4k views

Should my HP Pavilion dv6000 operate w/o battery pack while using electrical plug-in? Mine won't

While using my computer, it shut down, and I cannot get it to turn back on. I have tried removing the battery to see if the computer would work without it, but it did not. The light is on where the ...
2
votes
2answers
3k views

DELL Inspiron N 5050 doesn't Power On until I Plug-in the Charger

I bought a Dell Inspiron N 5050 last week, and recently discovered a problem with my laptop. It doesn't Power On until and unless I Plug-in the charger. After I plug-in the charger, it boots up ...
0
votes
1answer
36 views

UPS suddenly restarting, what might be the cause?

Background My UPS has a backup of about 10 mins, thus, it's battery life is good. No problems detectable. My CPU, on the other hand, is also fine with no major hardware problems (as it looks so) ...
0
votes
1answer
25 views

Can a PSU, if not sufficient, stop a gpu from posting to the monitor?

-I'll Put my PC specs at the bottom- Okay, I recently started having a slight heating problem with my stock heatsink for my FX-8350 so I upgraded to a Corsair H80i-GT water loop. When I did I also ...
0
votes
0answers
18 views

Asus Zenbook UX31A not booting

I have been trying to repair a Asus Zenbook UX31A for quite some time and would like to pick your brains, because I am finally out of ideas. When I received the Zenbook it was not booting, not ...
0
votes
0answers
27 views

Motherboard LEDs blink but it won't turn on

I have a PC that does not turn on. I checked all the pins of the power supply with a multimeter and they are ok. I tried to connect the motherboard only: the two LEDs (power and reset) blink, but if I ...
1
vote
2answers
312 views

+2.5V giving me 1.45V

Are these readings ok? that +2.5v is the DDR's? +2.5V: 1,45V Vcore: 1,51V +3.3V: 3,26V +5V: 5,14V +12V: 12,11V
0
votes
2answers
18 views

How can I use a small 90W power adapter with a ThinkPad W530?

I have a Lenovo ThinkPad W530 computer. The 170W power adapter it comes with is huge! I tried to plug in an old 90W adapter -- which is much smaller -- to the computer but immediately when it starts ...
-1
votes
0answers
10 views

Using a 20pin ATX cable on a 24pin motherboard [duplicate]

I have a 10 years old PC where the psu doesn't work anymore. It's not really important there are just some photos and old games, but I would like to resurrect it again. Before buying some psu from ...
0
votes
1answer
2k views

Battery reports it's fine, but notebook won't boot /wo AC plugged in

I am running Acer Aspire Timeline Ultra M5-581TG. I opened it up to clean (as I've done twice before), assembled it back and now observe weird behaviour: the laptop won't react to the power button ...
0
votes
2answers
180 views

Laptop touchscreen hypersensitive to electromagnetic interference

I have a Dell XPS 15 laptop that's less than a year old and still under warranty. I've been in contact with Dell several times about this issue, but they don't have a clue. The problem is ...
0
votes
0answers
128 views

Dell docking station only works when power supply unplugged

I recently was forced to get a new Dell M6500 chassis and hard-drive for work to replace my old identical model laptop. I have a Dell docking station connected to some peripherals and a second ...
4
votes
3answers
31k views

What happens if a video card cannot get enough power?

I am wondering what will be the symptoms if high end gaming video card does not get enough power because the PSU is not powerful enough. Some high end video cards list their requirements as lets say ...
0
votes
1answer
5k views

Dell AC adaptor flickering green light and won't charge laptop

I have a Dell Latitude E6400 and recently the charger blinks the green LED and wont charge the laptop. After a while however the laptop charges, and then this may occur again after a couple of hours, ...
0
votes
1answer
25 views

Did not unplug computer, power outage. Is it safe?

My office building is doing some maintenance work and they said they will shut off the power supply from midnight to 6am -- They told everyone in the building to turn off their computers and unplug ...
1
vote
1answer
3k views

Computer shuts down after a few minutes

So I spent all day yesterday trying to figure out what was wrong with my computer. The specs look something like this (before replacing the board): Z77 MSI M Power Samsung 840 Evo SSD 16gb Ram (2 ...
0
votes
2answers
42 views

How to extend the DC part of my laptop power cable without experiencing voltage problems?

I use my laptop for extended periods on the mains in two different rooms of the house, and for ease of use I keep a separate power cable in each room. In one of the rooms I need to extend this cable. ...
0
votes
1answer
34 views

Run two graphic cards in SLI with a Y-Power-Splitter

I bought a new MSI Z97S SLI Krait mainboard with two PCI-E slots. Because i bought a GeForce GTX 770 MSI OC two years ago, I bought another one very cheap to let them run in SLI mode. But i ...
-1
votes
1answer
18 views

Desktop LEDs working but not booting to BIOS or anything else

I have an older desktop computer with an amd "m2n4 sli" asus motherboard that i occasionally turn on once in a week/month or something like that. Recently, i have turned it on and it booted up ...
0
votes
0answers
15 views

3.5 inch disk powered with 5V

I want to connect a 3.5" drive to an eSATA port. My HTPC happens to have a mainboard (some years old, ASROCK A330 ion) with 2 powered eSATA ports. From what I found out it has no extra pins ...
0
votes
1answer
811 views

Laptop battery - 100% available plugged in charging

I have a Dell Inspiron 5521 running Windows 8.1.Recently, I had replaced my battery.But my battery indicator shows 100% available ( plugged in,charging) status. I calibrated the battery but no ...
0
votes
0answers
7 views

Asus X501a No power Led, not turning on

I have a Asus X501a model with power problems. When Power supply is connected, no Leds come on and of course the PC does not turn on. First I have changed the POWER DC Jack module, since there was ...
1
vote
1answer
49 views

Is there a way to “hack” the power options in Windows 10, e.g. change from to 100% instead of 60?

In this link is said There is nothing that a user needs to do manually, to maximize battery health on these batteries. For this reason, we don't provide any utility to manually manage battery ...
0
votes
0answers
17 views

Can I use a 130V AC adapter for my european laptop? [duplicate]

I have an old Dell XPS Studio 16 whose AC adapter broke a while ago. I've been using a universal adapter, but apparently Dell has some hardware checks hard coded that won't let the adapter charge the ...
1
vote
1answer
27 views

Ethernet port has no power when ATX12V1 power connector is plugged in

I have an old Dell Intel Connolly: E187242 motherboard that had the power supply go out. After ordering a new one and plugging everything into the correct ports, my NIC does not light up or getting ...
0
votes
2answers
95 views

Why are my drives failling (version 2)?

I have a problem similar to the one described on question Why are my hard drives failing?. I have a PC assembled by my self and It has worked fine for 3 years but recently It have been killing hard ...