Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Questions tagged [power-supply]

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 ...

0
votes
0answers
19 views

Prepare windows for power failure

In my scenario i have Windows system that can be notified about a power failure up to 200ms before the power failure (The UPS already failed in this scenario). As this won't be enough to shutdown ...
0
votes
0answers
16 views

How to test an EMI Filter & Power Mains Lead using a multimeter

I'm currently trying to repair an iMac A1311 (Mid 2011). None of the diagnostic LEDs come on so I believe the problem is a power issue. Tech aside, how can I test that an EMI Filter & Power Mains ...
0
votes
0answers
9 views

Schedule a power cycle / power reset on Netgear GS752TP POE switch ?

Is it possible to schedule a power cycle / power reset for a POE device powered by a Netgear GS752TP ? Ive come across this sort of functionality before in PDUs but wondered if it can be done via a ...
0
votes
0answers
22 views

New graphics card, no display

I put together a new build, and the new graphics card I purchased is not displaying anything on my monitors (meaning, my monitors are not detecting anything). Here are my build list, some facts about ...
-1
votes
0answers
23 views

B450 Elite MOBA turns on for half a second

ive been searching the interwebs for a few hours now and cant find a solution. I've just built a PC (second one ever) and apparently not as simple. Specs-B450 mother board A8-9600 cpu (until i have ...
0
votes
2answers
60 views

I have a 450 UPS, will it be enough to let me safely power down my 600watt psu computer?

I don't need to use it, just turning it off if a power outage happens is enough for me.
-1
votes
1answer
34 views

ATX Power Supply Unit with one/some Always-On Molex Connectors? [on hold]

I know (current) ATX PSU will turn off its power after the PC shutdown. This is good. I know (old) AT PSU will leave its connectors with power on even after the PC shutdown. Ref: https://en.wikipedia....
0
votes
0answers
26 views

ASUS Laptop screen briefly turns off when connect/remove power cord (with demo video)

I have no idea what is causing this truly bizarre problem. Whenever I connect or disconnect my power cable for my brand-new laptop, the screen briefly turns off (2-4 seconds). Its really annoying and ...
1
vote
2answers
50 views

PC is buzzing under load

I've got a mini-itx small factor PC GTX 980 i5 6600 SF PSU 600W When it's under a load, like running a game for example, it starts buzzing usually. These are two examples, not from my box but the ...
0
votes
2answers
60 views

UPS turning on and off repeatedly

I'm using an Intex Protector UPS. When I push the power button it starts with a beep, which is normal, I know. But when the beep ends, the light which shows power turns off and button remains pressed. ...
0
votes
0answers
13 views

What part of the motherboard do I need to look at to find the A-C3V output on a Tecra A11 PTSE1A-07G005 motherboard: A5A002688160 M1

I'm trying to perform a nice sharp repair on one of my numerous dead laptops which is receiving the 62h error. The error code is itself decoded from the amber blinks of the power LED as the machine ...
0
votes
0answers
25 views

Thunderbolt 3 hub not powering up on a certain port

I've recently purchased a USB Type-C hub and it worked great under Windows and Ubuntu on my HP Spectre x360 (late-2017 I believe). Until yesterday, when I noticed a warning from Windows' defense ...
0
votes
0answers
45 views

I've had FIVE hard drives die in the past few days. Is it a power surge? Could anything else cause this, and can I trust my other components?

So I had 3 mechanical HDD's (all different), and 2 SSD's (one old, one new-ish) Timeline: 2015 - 2 weeks ago - Homebuilt system works fine. 8-10 days ago - Multiple power outages during last few ...
0
votes
1answer
31 views

Custom-built desktop damaged by faulty PSU?

I have a desktop with the following specs that's been working well for about a year now: Gigabyte GA-H55M-S2H Mobo, Corsair CX550M, GTX 1060, 8 GB Corsair RAM, ... And PSU in it just died. I swapped ...
0
votes
1answer
49 views

Motherboard stopped powering up after Windows update, but after a while, started by itself

I've never seen anything like this before... I was using my PC as usual, doing so for almost 1.5 years without any issues, then I started updating Windows as usual, which completed successfully, then ...
0
votes
1answer
22 views

How to safely turn off USB-connected, ATX PSU powered 3.5" hard disk drives built as internal?

I have a bunch of internal, 3.5" HDDs which I connect them to my laptop using an adaptor which converts SATA/IDE to USB 2.0. I can choose the "Safely remove storage" option in Windows 10 and it ...
0
votes
2answers
74 views

Voltage Stabilizer and USB Hub

I need to use a voltage stabilizer to secure my USB Hub (Anker PowerPort 6), but the stabilizer is slightly underpowered. It is rated at 1.3A, 300W (230V). My Anker has input requirements of 1.4A (...
-2
votes
1answer
20 views

GTX 1050 and GTX 1050 Ti-based cards power socket?

Some graphics card have a power socket in addition to drawing power from the PCIe bus. Is this the case for nVIDIA GTX 1050 and GTX 1050 Ti-based cards? That is, do No vendors' 1050 and 1050 Ti cards ...
0
votes
0answers
45 views

PSU is not powering SATA drives

My drives (SSD that boots, HDD for extra storage) stopped turning on with my computer. It boots to BIOS just fine, but the drives are not recognized. Both drives use their own SATA power cable. ...
-1
votes
2answers
72 views

Computer cannot boot to bios

When I turn on my computer, it just goes go to a black blank screen. It only has an internal graphic card. Upon further investigation, I noticed the fan intermittently stop and start again. Things I ...
0
votes
1answer
124 views

Motherboard with ATX 12V 4 pin power connector does not turn on

I have a motherboard that only was a 4 pin ATX 12V power connector to energize the CPU and nothing else. My PSU is thermaltake smart 650w and connecting the 4 pin 12V does not turn on the computer ...
0
votes
0answers
16 views

Acer laptop won't power off

I have an Acer E5 575G running Windows 10. After using the laptop for less than about 3 hours it will shutdown normally (LED turns off). If I use it for more than about 3 hours when I shutdown ...
-1
votes
0answers
14 views

Amount of PSU Watts needed for my PC? Or what should I need to do?

I will talk in direct. I have: (4pcs HDD & 1pc SSD) 2pcs of WD Red 4 TB 1pc of WD Red 8 TB 1pc of 500gb Seagate 1pc of 250gb SSD for OS 1pc of DVD/CD Driver DDR3 Motherboard 2pcs of 8gb ...
0
votes
0answers
35 views

Burned USB ports [closed]

I plugged a 110V power supply in a 220V outlet and "burned" the USB ports from my Inspiron 5557. One of the ports still transmits current but not data while the other 2 are basically dead. As far as ...
0
votes
1answer
50 views

Dell Precision m6800 won't recognize any power supply (through own DC jack as well as docking port), and battery will not charge

My m6800 has complained occasionally about the AC adapter being seated poorly since I bought it, and I have always been able to pacify it. Since last night, I cannot. BIOS tells me that I have ...
0
votes
4answers
36 views

What Cable Do I Need To Connect My New Hard Drive To My Motherboard & Power Supply Unit?

My new drive is a Seagate 2TB BarraCuda SATA 6 Gb/s 7200 RPM 64MB Cache 3.5 Inch Desktop Hard Drive (ST2000DM006). My motherboard is an MSI B85M-G43 (MS-7823). I'm assuming my power supply unit uses ...
0
votes
0answers
12 views

PC restarting itself, even when idle

I had problem with random restarts for a long time but sometimes everything works fine while other times the pc randomly reboots every couple of minutes. Today I changed hdd for SSD and I noticed that ...
0
votes
1answer
23 views

Computer devices randomly get disconnected

I seem to have a strange issue with my PC. The devices which are connected to it are randomly getting disconnected, only to be connected again in like a second. I typically observe the issue when I ...
0
votes
1answer
32 views

Which parts of my computer do I need to replace along with a new Processor [closed]

About a year ago I build a computer with an intel i3-8100 processor. However I have decided to replace it with the intel i7-8700k processor, so I wold like to know if I need to replace any of the ...
0
votes
0answers
19 views

What is the use of female to female SATA cable with power?

The other day I accidentally bought a female to female SATA cable with power cable next to it. Since the power and SATA itself is right next to each other and there is no way to separate them unless ...
0
votes
1answer
41 views

Power requirements of a self-powered USB hub for use with four or more HDDs

How can I be sure a self-powered usb hub will be able to power several HDD? What do I have to be aware of? I'm looking at powering 4+ external HDDs from different vendors and capacities (500GB, 1TB, ...
0
votes
0answers
21 views

How to properly ground dual PSUs for powering extra hard drives?

My project: I'm trying to build a small storage server with some old hardware I have lying around. The motherboard I am using has 4 SATA and 1 IDE connector, all of which I will be using to connect ...
0
votes
1answer
16 views

Connecting PCIE connectors to gigabyte gtx 770 2gb windforce

I have got a Gigabyte Gtx 770 2gb Windforce Image of GPU connector My PSU is Thermaltake litepower 550w that has two 6+2 pin PCIE connectors . Out of those 6 pin connectors one 6 pin is ahead of ...
2
votes
1answer
62 views

Will a graphic card draw 100% of its maximum power usage during startup?

Please ignore this duplicate flag. It's wrong! Let's say I have the following situation: I have a graphic card which can, with default settings, draw up to 250W from the PSU under full load. However, ...
-1
votes
1answer
26 views

Will my 320W PSU handle a Asus GTX 750Ti

I've got a 320W PSU as far as I know and it's a Chinese PSU because I've seen the Chinese letters on it. I just had a question if I can upgrade my pc to Asus GTX 750Ti 2 GB OC. My pc specs are: 4GB ...
0
votes
0answers
11 views

Using desktop parts that are unmatched by the default configuration

I have a lenovo thinkcentre m73 desktop. Recently power supply unit(PSU) has been out of order so I needed to change that PSU.Shops near me does not have that PSU instead they told this model is out ...
0
votes
1answer
218 views

PSU required wattage

I am planning on buying, when it's released, an i7-9700k with an Asus Z390 Maximus Hero XI and a 1070ti. I currently own a Corsair H100i V2, 2x 8gb Kingston ddr4, 3x thermaltake riing 120mm fans. ...
0
votes
1answer
60 views

Power surge, computer can't find one hard drive, case light still on

So, my entire machine is consistently plugged into a surge protector. All the same, a sudden electrical storm caused a total power down. After starting it back up, it can't find a relatively important ...
0
votes
1answer
221 views

8 pin CPU power connector has different form on one end

My motherboard requires an 8-pin CPU power cable to be connected, other than the 24-pin main connector. My PSU (which is modular) has the same exact 8-pin connector, under which it is written CPU. My ...
0
votes
2answers
54 views

Extending monitor power supply DC cable

I have 3 LG monitors mounted on my desk. Two of those are barely reachable by the DC power cable: it is only 1.2m long and I need at least 50cm more for it to fit in my cable management system. So at ...
0
votes
1answer
60 views

does power supply redundant failure cause kernel panic? [closed]

Just after one of the power supply failed, the following error was recoreded in syslog. (the OS is ubuntu 14.04.) I am running a JVM (java virtual machine) with 64 HEAP on server with 128 RAM. do you ...
-1
votes
1answer
50 views

My Dell XPS machine shuts down once it is starting training with Titan X GPU in ubuntu 16.04

I have an Dell XPS machine, which was working fine with Nvidia 1080 GPU card. I had to change the GPU to TITAN X. But the problem is that once it is starting to train, it is switching off the system ...
0
votes
0answers
25 views

Avoid multiple power profiles in windows 10

In windows 10, there are two power profiles, which are active based on whether the power cord is plugged in or not. Both have independent screen brightness levels. So if the brightness level is ...
0
votes
2answers
112 views

Will my 300w PSU handle a Nvidia GeForce GTX 750 Ti? [duplicate]

I have an HP Compaq 800 Elite CMT Business PC. Will it be able to handle a Nvidia GeForce GTX 750 Ti? My PC specs are: 4 GB of DDR3 RAM 1333MHz Intel Core 2 DUO E8400 3.0 GHz 300W PSU 250 GB HDD No ...
0
votes
1answer
40 views

How to charge powerbank properly?

I have bought a power bank Viking QC 3.0. There are two ports for input. USB C and micro USB. How do I charge this power bank properly? Can I use both inputs at one time? (2 electric power sources, ...
1
vote
0answers
105 views

Difficulty investigating faulty hardware

I've had some issues with my PC which I built some time ago. This is my first time building a PC, so a bit of a noob here. There are two main problems with it and I cannot diagnose what is causing it ...
0
votes
0answers
20 views

What is wrong with PSU that fails to restart a PC after shutdown?

So the problem is with the PSU unit of the PC, which doesn't start the PC correctly after it's been shut down. If I shut it down in Windows, it powers off correctly, but after pressing the power on ...
0
votes
0answers
22 views

pc won't wake up from sleep mode - power button wont work

I got new AMD Ryzen 2700 and Asus TUF-X470 mobo. I swapped windows HD from my old system i7. Windows works fine however when I try to use sleep mode it goes to sleep permanently. Only resetting CMOS ...
1
vote
0answers
82 views

Sometimes, my PC don't turn off after shutting down

When shutting down, hibernate or going to sleep, sometimes the power supply remains on (I can hear the fan). I must turn it off by pressing and holding the on/off button for 5 seconds. If it went to ...
0
votes
3answers
195 views

What is killing my power adapters? [closed]

Hardware I have two Acer S230HL's and an ASUS PG278Q (hooked up to a custom PC build). Background 3 months ago on an exceptionally hot day, the power to the house flickered off and immediately back ...