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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23 views

Can I use this power supply with my motherboard

So this is my first post so I apologize in advance if this is either a dumb question or a novice one. I am trying to figure out some things about my power supply. I have purchased this power supply ...
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0answers
16 views

High pitched noise from WQHD Curved monitor

I am very sensitive to high-pitched noises. Some years ago I even got diagnosed with "Hyperacusis" - which is essentially an high sensitivity to noises. I am an electronics engineer and often need to ...
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0answers
15 views

Video card power up delayed

When I start my computer, it takes approx. 20 seconds before the video card powers up. Before that it's just quiet (no fan noise), and my monitor gets no signal. The computer starts fine otherwise, ...
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1answer
38 views

What does the 4+4 CPU power connector on my motherboard do exactly? [duplicate]

I just built my very first PC from scratch. Before that, I always bought pre-made PCs. One thing I noticed while putting all the parts together, was that aside from the standard 24 pin connector, ...
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2answers
52 views

USB 3.0 port as 20v power supply [closed]

I'm looking for a way to get the stated 20V 5A out of an USB 3.0 port to power an amplifier. Found power supplies but no easy USB 3.0 cable to DC power jack/connector (20V). Does it exist either or ...
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0answers
29 views

Battery Stops Charging Randomly

I have a Lenovo E540 running Windows 10 x64. For quite a while now, I've been having problems with how the battery charges. When I plug it in, it will always start charging - maybe for only 30 ...
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0answers
28 views

Laptop charger voltage fluctuation

I had sent my laptop(Dell inspiron 5520) for repair as it wasn't getting charged at all. The battery was working fine though. The technicians at the service centre told me that the voltage ...
0
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0answers
19 views

I just installed a new graphics card in my computer, now it boots for a minute or two, then it shuts off

I installed a PNY XLR8 NVIDIA 750Ti OC into my system. Soon after installtion, the computer boots for a minute or two, then it dies. I suspected my power supply, as it was 5 years old, so i bought a ...
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2answers
60 views

Brand new laptop making an electrical sizzling noise when opening programs

I just bought the Acer V17 Nitro VN7-792G-705X. The processor is the Intel i7-6700HQ. I noticed that when I open a program, say google chrome, you can distinctly hear a sizzling noise coming from ...
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29 views

Computer doesn't start unless case is opened

The power button just does nothing. The cord is fine, the outlet is fine, the power switch is on. Literally the only thing that fixes it is to: open the case pull the power supply out (without ...
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0answers
29 views

Accidentally connected 12v psu to 5v HDMI composite/svideo composite adapter

I accidentally connected a 12v psu to a composite/svideo - HDMI converter adapter that was expecting 5v (after a customer service rep. apparently erroneously claimed the device could handle up to ...
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2answers
33 views

New motherboard sends no signal to monitor

I have set up a new motherboard on an old chassis of a desktop PC. The mb has its own embedded GPU, and I haven't added any additional graphic card. I have connected the mb to the PSU through the ...
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1answer
33 views

Lenovo laptop, Windows 10 not charging battery

I have a Lenovo G500s. It came with Windows 8.1 pre-installed with the battery working fine. I've installed Windows 10 on the laptop now and suddenly the battery is not recognized anymore. It says "0% ...
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3answers
46 views

Confirmation that motherboard is dead

all My computer died yesterday. At first I thought it was the PSU, because it never started, but I tested the PSU with the clip trick and it starts, and I have another PSU that works (for sure), and ...
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1answer
13 views

Power supply rate for Riger ADSL Modem 2/2+ DB102

Does anyone know what type of power adapter for this kind of modem?
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0answers
40 views

How can I repair a power supply for a Apple's Power Mac G4?

This is an attempt to gather a reference page for anyone trying to replace a failing PSU from a Power Mac G4 with an equivalent ATX in the future. There are still a couple of pages -luckily- ...
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2answers
40 views

Windows-7 Acer Aspire 5738 laptop simply turns off

My laptop simply switches off on its own...and I mean switch off without warning or anything...as if someone cut the power supply so the computer did not show any warning etc. And this happens only ...
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1answer
27 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 ...
2
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1answer
97 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
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1answer
37 views

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

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 ...
1
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1answer
29 views

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

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 ...
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votes
1answer
52 views

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

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 ...
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1answer
31 views

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

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 ...
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votes
2answers
34 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 ...
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1answer
51 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) ...
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1answer
31 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 ...
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0answers
23 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
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0answers
28 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 ...
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votes
1answer
41 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
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1answer
32 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 ...
3
votes
2answers
98 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 ...
0
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1answer
28 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 ...
0
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2answers
45 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 ...
6
votes
5answers
291 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
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2answers
50 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
41 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
20 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
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0answers
17 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
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0answers
9 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
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1answer
60 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
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1answer
22 views

nVidia GTX 570 power supply

The GTX 570 card requieres aditional power from the power supply, it has 1x 6-PIN and 1x 8-PIN, but in the official documentation there is stated that it requieres 2x 6-PIN. So what PS should I buy: ...
0
votes
1answer
52 views

Finding the power pins on an Acer TC 220 motherboard

I am trying to move the internals of an acer TC 220 into a different case, but I'm struggling to find the pins to connect the power and reset switches to. The only labeling th MB has is ...
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votes
2answers
72 views

Device does not have enough capacity to power a USB external HDD

I'm trying to connect my USB 3.0 External HDD to Raspberry Pi. However the HDD spins for a few seconds and stop. I think the Pi does not have enough capacity to power the HDD. What are my options? ...
1
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2answers
17 views

PSU noise and turning parts on

When I unplug my PSU's cable and plug it again in the outlet, it starts making a high-pitched noise and starts trying to turn the PC parts on. The CPU cooler spins a bit, then shuts down again. The ...
0
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1answer
22 views

How to power on Asus T100TA laptop that has power button lid removed?

I have an Asus T100TA laptop with a power button lid removed. I don't know what to do. I think I should make some connection between the nodes (1,2,3) shown. I'm looking for making my laptop power ...
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votes
3answers
33 views

Can software keep my laptop from charging?

I have a Lenovo S540 with debian testing (stretch) set up. A couple of days ago I noticed that the battery is not charging even when it's plugged in. Of course this could be a broken power cord of ...
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0answers
22 views

CPU short-circuiting issue

I have a dual core PC (desktop). When I turned on some sparks happened in CPU and in the socket. The PC did not turned ON. I thought, if some electricity problem/socket was damaged then the monitor ...
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votes
1answer
12 views

Is an Abtec CE2 hb1003 (550W) enough to power an GTX 970? [duplicate]

Would an Abtec CE2 hb1003 (http://www.acbel.com/eng/Product.aspx?id=42&&sd=31&&pid=242) be enough to power a GTX 970 or 960 4gb? Thanks
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2answers
37 views

What power supply do I need for this configuration? [closed]

My computer's specifications is the following: Gigabyte GA-Z97-D3H desktop motherboard Intel Core i5 4690K s1150 BOX processor Kingston 16GB 1600MHz DDR3 RAM Non-ECC CL11 Kit of 2 GIGABYTE GEFORCE ...
0
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1answer
31 views

My computer shutdowns itself, how can I diagnose it?

I have a 5 years old Dell XPS 8100. A couple of days ago, it suddenly shutdown itself and then restarted again. Just like if there had been a power supply outage at home... except there wasn't one: ...