Questions tagged [power-supply]

For questions about devices that automatically supply and/or regulate electrical power for other devices. Do not use this tag for questions about PC power supplies (see the [smps] tag).

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26
votes
6answers
75 views

Can someone help me identify the specifications of a UPS for a 20-core high-performance computer?

Firstly, I am a software developer that has been delegated the task of finding a UPS for my team's 20-core test-suite machine. It is powered by a 1kW-rated Corsair RM1000X power unit. I live in South ...
11
votes
1answer
114 views

Powered USB3 hub

Sounds easy, right? NOPE! In an attempt to do away with this dreaded message: I am looking for a USB hub for my Macbook Pro that meets the following requirements: Externally powered on all ports (...
10
votes
3answers
182 views

Power supply for new college computer

I am going to be building a computer for a college student. He is going into general engineering while he figures out exactly what he wants to do. The budget for this computer is about $1500 USD (just ...
10
votes
2answers
120 views

Charging a smartphone on a bicycle

I often explore the countryside with my smartphone saddled on my bicycle providing GPS information. This is battery-intensive so I would like to charge the phone while riding. Requirements: Not ...
8
votes
3answers
5k views

Multi-port, 100W @ 5A, USB-C charger

I've been looking to replace a couple Anker PowerPort-style 5-port USB-chargers around my house (computer desk, entryway table, laboratory workbench) with ones into which I can plug my 15″ Macbook Pro....
8
votes
0answers
70 views

Li-ion portable car battery charger that can charge 12v batteries (e.g. car batteries, but not just jump-starting cars), available in UK [closed]

There are hundreds of "portable jump starters", lithium ion battery packs with crocodile clip attachments that can be used to jump start a car. Many can also charge laptops or USB devices, or having a ...
7
votes
4answers
1k views

What's the most efficient PSU for a mid-low power computer?

I noticed that almost all power supply units (PSU) nowadays come with an 80plus label. This means that over 80 % of the electricity I pay for in my bills will actually reach my hardware instead of ...
7
votes
2answers
102 views

What power supply for this PC?

I'm planning to build PC from following parts: Processor: Intel i5-6500 Cooling: Corsair Hydro Series H55 Graphics: Gigabyte GeForce GTX970 Gaming G1 HDD: WD 1TB 64MB BLUE ...
7
votes
3answers
114 views

Power supply upgrade for gaming computer

I'm thinking of adding a second Sapphire R9 390 to my computer to run in 2x crossfire. Here are the parts I'm using: CPU: Intel i5-6600k MB: Asus Z170-A ATX LGA1151 RAM: Kingston HyperX Fury Black ...
7
votes
2answers
473 views

The quietest PSU under 100 USD

Currently I plan buying the components below: MSI Z170A GAMING PRO (Z170 3xPCI-E DDR4) Intel i5-6500 3.20GHz 6MB with 212 EVO A-DATA 240GB 2,5'' SATA SSD Premier SP550 GeForce GTX960 4096MB 128bit OC ...
7
votes
1answer
234 views

100W+ solar panel with built-in output voltage cap around 18V or 19V

I'm in a country with an unreliable power supply but plenty of sun. I currently keep my work computer and phone going with a portable fold-up PowerAdd 60 watt solar panel, which has built-in voltage ...
6
votes
1answer
105 views

How far above my power draw should a PSU be?

I am going to upgrade my PC over Christmas, and right now I'm trying to pick out a PSU. I would like it to be fully modular, 80+ gold or better efficiency and preferably cheap. I found the Antec ...
6
votes
1answer
1k views

Are there any USB battery packs that can provide power while charging?

I have an external battery pack, for my phone. But I just bought a Raspberry Pi, and would like to create a UPS - fairly cheaply. I tried charging my phone and charging the pack with this one but it ...
6
votes
0answers
82 views

Are there any power supplies that can be used with a 2001-era computer?

I have a computer from 2001 whose power supply probably needs to be replaced soon (the fan sometimes makes noises). It is currently using a 10-year old FSP400-60PFN 400 watt PSU. Power supplies from ...
6
votes
0answers
171 views

Non-generic power adapters with barrel connectors with 2.5 mm OD and 0.8 mm ID for Chinese tablets?

A lot of Chinese tablets (and probably some others as well) use a barrel connector instead of microUSB to charge. They all seem to use the standard size of 2.5 mm OD (outside diameter) and 0.8 mm ID (...
5
votes
5answers
169 views

Power supply advice - 550W range

I am willing to build my very first computer. This is the build I was thinking about: Intel Core i7 6700K Gigabyte GA-Z170X-Gaming 5-EU Corsair Hydro H60 CW-9060007-WW EVGA GeForce GTX 1060 3GB SC ...
5
votes
2answers
338 views

Older model vs new model PSU

I have a Corsair AX760 Watt PSU which is still new in the box but is an older model. So it was never used. It was meant to be build in a high end gaming PC but that never happened. I see that this one ...
5
votes
1answer
428 views

What does “fully wired” mean when buying a PSU?

The following power supply units on Ebuyer are described as being "fully wired". Ace Black 120mm Fan 550W Fully Wired Efficient Power Supply CIT 450W Fully Wired Efficient Power Supply PowerCool ...
5
votes
1answer
59 views

Power Supply for nvidia GTX 970

Bought a GTX 970 yesterday - just arrived, turns out I don't have the connectors required. Tried to bodge it with a 4-pin molex to 8-pin connector, that doesn't fit either. Any ideas on a cheap-ish (...
5
votes
0answers
40 views

Portable rechargeable battery (power supply) for tablets and phones that will also jumpstart large vehicle engines

I am seeking recommendations for a portable rechargeable battery pack. Requirements Reliable Can safely power tablets and phones (only need 2.1A at once) Can reliably jumpstart a large vehicle ...
4
votes
2answers
294 views

PSU recommendation for new casual gaming setup

I'm looking for a PSU recommendation for a setup below: Corsair 650D chassis Intel i5 4690K CPU ASRock Extreme6 mobo Radeon R9 290 GPU 16GB RAM (2x 8GB) 1x SSD 256GB 1x 2TB SATA HDD 2x 1TB SATA HDD ...
4
votes
1answer
274 views

UPS that supplies 50W for 10hrs?

I have a line-powered (standard AC) device that sinks 50W in steady-state and I need to power it for 10 hours in case of service interruption. I'm assuming that I can use, say, a 500W UPS (50W * 10hr ...
4
votes
1answer
80 views

Power Supply For my future build

I am currently under the dilemma of choosing the right PSU for this build: CPU: Intel Skylake, Core i5 6600K 3.5GHz RAM: HyperX Fury Black 8GB DDR4 2133MHz CL14 Dual Channel Kit Motherboard: MSI ...
4
votes
0answers
89 views

Asus Notebook X53SV -SX178V new Mainboard

I need a new mainbord for my Asus Notebook X53SV-SX178V, because the DC jack is broken and the mainboard is partly cracked. So I want to order a new mainboard which is called K53SV. There exist ...
3
votes
1answer
28 views

What multi-port wall USB-chargers exist which support QC 3.0?

I'm looking for a US wall-plug charger which supports Qualcomm Quick Charging 3.0 (QC 3.0) or later The trouble is that while there a re many chargers with one QC 3.0 port, and other 5V 2.1A ports, I ...
3
votes
1answer
101 views

Uninterruptible power management board for Computer, 15W output, Li-ion battery

I'm searching for a power management board for powering the portable NAS from my other question, which needs 12V-24V and at most 15W, much less on average. Required: output to computer: 15W, voltage ...
3
votes
2answers
288 views

Best Power Supply Unit for Blender Cycles Rendering?

What's a very good Power Supply Unit for this PC computer I want together built meant for Blender Cycles rendering? I have a few components but need 3 more. The three components are: the MSI X399 ...
3
votes
2answers
163 views

Workstation for Deep Learning in Pakistan

I need to buy or build a machine for my research in Deep Learning and Computer Vision. I read in some tutorial about building a machine for Deep Learning, it suggested using a CPU with minimum 8 Cores,...
3
votes
1answer
62 views

Hardware selection for NVIDIA Titan Xp

I am a research student and I received a NVIDIA Titan Xp graphics card from NVIDIA as a research grant. However, the IT department in my department says that the gpu is can not be put inside any of ...
3
votes
1answer
88 views

Smart Home: controlled power receptacles

I want to get power receptacles controlled via web and buttons. Specifications: I need an one-room system, wireless. Electric power system here is bad for signal transferring. WiFi (Z Wave, ZigBee,...
3
votes
0answers
173 views

USB-C Hub with PD and DP Alt Mode

I have been looking for a USB C hub that is able to charge via PD whilst at the same time taking the video signal from the port and offering it on a separate USB C port on the hub. However after weeks ...
3
votes
0answers
70 views

Which PSU to get for very low power draw?

I'm building a very low power HTPC. I'd like to make it as efficient as possible. The components I've chosen (a low power Atom mobo/CPU, a single SO-DIMM and an SSD) should idle at around 10W if not ...
3
votes
0answers
33 views

Power supply to power a raw SATA disk (HIGH-QUALITY supply!)

I'm looking for an external power supply to power raw SATA disks. The catch is I want a high quality, well-built supply. There's plenty of supplies on Amazon, eBay, etc. that convert AC power to a 4-...
2
votes
2answers
3k views

power cable for My NVIDIA Quadro 4000

I am trying to find a power cable for My NVIDIA Quadro 4000. My Dell server has an 8 pin connection on the Power Distribution Board and the GPU has a 6 pin slot. I can get both of these connections on ...
2
votes
1answer
43 views

Standard ATX power supply but powered from 12V

I'm searching for an ATX power supply which is powered by a 12V input. Peak power 300W. Outputs: 1 standard ATX mainboard connector 1 4-pin cpu power connector 1 6-pin PCI-E power connector 2 SATA ...
2
votes
1answer
36 views

Which PSU for an ASRock Z170 EXTREME 7+ motherboard with many hard drives?

I had the opportunity to acquire a second hand ASRock Z170 EXTREME 7+ mainboard at a good price and plan to assemble a tower to perform data recovery jobs. It is a high-end board, whith 10 SATA III ...
2
votes
0answers
70 views

Getting zapped by computer (not exactly but yes) [closed]

I am getting current on the screws and metal portions of my computer for some reason and it only happens when i am standing on the ground and using the tester or getting zapped by it on the softer ...
2
votes
1answer
33 views

USB C 3.1 Mini PC capable of running Linux

I have an MBP for work. I want to have a dedicated development environment for private projects to not mess up my work setup. Also, I wanna run Linux (just Ubuntu something). The MBP is currently ...
2
votes
0answers
22 views

USB hub with power (and data) control

Many (and fast) USB hubs are available in the market, but most of them do not provide a selective control over their single ports. From the OS, I would like to be able to: activate and deactivate ...
2
votes
2answers
66 views

Reading and activate/disable power of specific outlets

We want to offer Colocation in a DataCenter and therefore we need to messure the energy consumption of every single server via API. Also we need to be able to switch the power on/off state for every ...
2
votes
0answers
399 views

Alternatives to UPS to protect a computer from unstable electricity [closed]

I live in a place where the electricity quality is poor. If I plug my desktop computer directly into the wall, it ends up damaged after some days due to unstable electricity. I have used an UPS for ...
2
votes
0answers
43 views

Specify Output Voltage of a USB Dongle

I am looking for some device which offers an API to specify the voltage output of an USB port. So actually I want to give power to some hardware by the USB Port and I want to specify on the PC if I ...
2
votes
0answers
352 views

5V, ~3A - 18650 li-ion battery bundle charger/balancer

I have a 15600MAh battery pack that came in one of my devices. Long story short, the controller circuit that charges the batteries was fried in a power outage, but the batteries are still good. I have ...
1
vote
1answer
85 views

Does this CPU fit with the GPU?

Apparently this CPU is a bad combination with my GPU; I have been told that they will not work together. These are the main parts: AMD - Ryzen 7 1700 3.0GHz 8-Core Processor (No overclocking so do I ...
1
vote
3answers
73 views

Suitable power supply for my system

I have an old power supply with the following characteristics: PORSCHE Model: P4-450W, 20+4 pin connectors Recently I am assembling a new PC with the following parts: GPU: Gigabyte GTX 1080 CPU: ...
1
vote
1answer
206 views

Remedies for new PSU not fitting into old case (but with extraneous space so it could be made fit)

I had an old PC (the build was originally a Siemens Celsius 460 workstation) whose case I wanted to strip apart and supply with newer components. For most components (those with standardised sizes, i....
1
vote
3answers
52 views

I really need to find a surge suppressor that works!

I have just had my third desktop PC in four years fried by an apparent power surge during a thunderstorm. We rent an ancient house in Western North Carolina (read: "awful Duke Energy electrical grid ...
1
vote
1answer
44 views

Universal Laptop Power Supply (Multiple Output Plugs) Daily Use

As you can already see in the title, I'm searching for an (alternative) power adapter which is compatible to my Lenovo IdeaPad Flex 15. My old power supply was the original included one, when I ...
1
vote
1answer
14 views

Hybrid USB Charging (Power Delivery) and PC Connection

I have an Oculus Quest 2 that I am using with my PC for running VR games from Steam. The headset needs to be plugged in while playing Steam VR games. My desktop does not have a USB-C native plug, but ...
1
vote
1answer
31 views

Adding Video Card to PC: Power and Wattage Considerations

I currently have a system with an Intel CPU and an integrated GPU (see below). I am pondering adding a more powerful GPU, say, along the lines of these: https://www.newegg.com/gigabyte-geforce-gtx-...