Questions tagged [power]

For questions concerning the power usage or requirements of a device. Do not use this tag for questions about supplying or controlling power.

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24 views

Cheapest (jun 2020) discrete GPU with working powersaving on GNU / Linux multihead

With working I mean GNU/Linux temperatures should not exceed Windows' ones by 10 C° with low performance profile. Preferably powersaving support over multi monitor configurations should be present ...
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25 views

208 volt watt meter for servers

Anyone ought to be familiar with a 120v power meter, or watt meter, such as the kill-a-watt brand of watt meter like this They are easily found online... amazon... less than $20. Is there one that ...
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0answers
66 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 ...
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1answer
27 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-...
2
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2answers
25 views

Extra-long Power Adapter Extension Cable Wanted

The 1.8-meter Power Adapter Extension Cable is an AC extension cord that provides extra length for your Apple power adapter. Use it with MagSafe and MagSafe 2 power adapters. From Apple's page on it. ...
2
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1answer
58 views

MiniDIsplay Port to USB-C with Power?

I have a Thinkpad X1 Yoga, first generation. It has a DisplayPort but no USB-C ports. I want to buy an external monitor, like the ThinkVision M14 that passes both video and power trough it's USB-C ...
3
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1answer
44 views

Trying to find a USB-C to ~4x USB-A hub that is fully powered from upstream power delivery

Finding a USB hub that does what I need is more challenging than I expected! The fundamental issue here is that the laptop (Dell Latitude 7400 2-in-1) gets very hot when it's charging. So hot that ...
1
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1answer
29 views

Are there USB Splitters in existence that I allow me to choose where the power goes based on program?

Okay so, I have a device that has one usb port. This port only has enough power for one of my usb devices at a time. I would like to get a splitter to support two usb devices. However is it possible ...
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0answers
25 views

GPS tracker with long battery life and minimal display

I'm looking for a GPS receiver that has an extremely long battery life. Off-the-shelf GPS devices like the Garmin GPSMAP 64s are great, but they only go so far: they promise 16h of battery life. ...
1
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2answers
72 views

What is the most affordable PSU for my requirements?

I have been reading a lot of things in the internet today about power supplies and I still cannot come to a conclusion on what exact PSU should I buy. The image below shows what I think is my power ...
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44 views

How to supply jetson tx2 with dji matrice 100 battery?

I want to put my jetson tx2 dev kit on the drone but i don't know how to supply the jetson using drone's battery. I think i need a dc/dc regulator (converter) cause the jetson require at most 19.6V, ...
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1answer
37 views

What is this connector [closed]

All I can say about the cable is that it delivers power to fans, but I'm not sure what to search in order buy more since one of them broke.
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2answers
73 views

Is there a USB 3.0 male (power +data) toY-Split USB male (data only) and usb male (power only) cable?

What I'm Doing I have a laptop and I am looking to get a portable screen for my laptop. My Problem Some of them have separate video and power connectors, but others give power and video over a ...
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2answers
993 views

Is there, or could anyone make a tiny 1 to 2 USB-C “splitter” hub that only contains a female USB-C-PD port and a female USB-C data port?

It still amazes me that it's almost the end of 2018 and still no one seems to have been able to, to my knowledge, find or create such a device. I did however gather some more information, so here I go....
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0answers
178 views

Full HD TV that will turn on automatically after a power outage

Please recommend a TV that meets the following criteria: Full HD resolution Has a USB port Has an HDMI port Reliably turns on by itself after a power outage (either at all times or only if the outage ...
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0answers
18 views

Appropriate power meter for CPU and GPU power consumption?

I want to buy a power meter in order to measure CPU and GPU power consumption, on a remoter desktop machine (in which I have physical access). The software is ubuntu 18.04, I can measure the nvidia ...
2
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2answers
6k views

LGA1151 CPU lowest power consumption?

i'm setting up a computer with an LGA1151 cpu socket, and i'm looking for the cpu that would use the least amount of electricity for this motherboard. the cpu will not be stressed in the slightest, ...
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2answers
63 views

USB-C Hub/Splitter for Phone

What I'm looking for is something that will allow my to charge and access the USB-C port at the same time. Something that only does that would be ideal but a full USB hub that will also charge my ...
0
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1answer
316 views

X370 motherboard: Power Supply Usage

I have been trying to figure out what kind of watt range PSU should I aim for my X370 pro gaming motherboard. I ran into a weird range of watt usage on different calculators. My setup is this: AMD ...
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1answer
27 views

A multigang extension with rotated sockets (UK)

I have USB plugs with the output on the same side as the Live prong: Source This means more than one plugged in next to each other in a multigang will often "bump" USB cables. Can I buy a multigang ...
0
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1answer
242 views

Is underclocked Xeon e3-1230v3 the same as e3-1230Lv3?

I am looking for a low wattage CPU with relative high performance. I read on several places, that underclocking or undervolting cheaper normal processors (e.g. Xeon e3-1230v3) can have the same result ...
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0answers
152 views

i3 3100T power consumption

Has anyone information on the real-life power consumption of an Intel i3 7100T? I know that the thermal design power is rated 35W, but how much power does it need in idle or low workload situations? ...
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1answer
3k views

Uninterruptible Power Supply for Intel Nuc?

My town suffers from quite a few power outages as of late and I am running a home server via my Intel NUC. I'm looking for recommendations on the type of UPS I could buy for such a device. Typically I'...
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0answers
17 views

Universal power adapter for Europe grounded

I am looking to buy a 220v 10a Universal power adapter for Europe (Schuko type) i.e. something like this: The problem is that the majority of those, do not have the ground pin connected even if they ...
2
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1answer
75 views

An unbreakable iPhone charging cable

I tend to carelessly yank my iPhone and iPad off of their charging cables, which leads to either the metal connector tip coming off or causes the cable to fray. As a result, I go through iPhone ...
3
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1answer
1k views

Recommended Computer for Statistician or M.S./PhD Statistics Student

I'm looking for a high performance and durable computer to work with. It's primary use is for Statistical Modeling and Analysis. Likely, I will need to use R, some SQL based programs (SQuirreL, for ...
2
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1answer
191 views

Better and cheaper Raspberry Pi alternative for BOINC

As the title states, I am planning to make a cluster to donate its processing power to boinc. I am looking for a equally powerful or even more powerful board that costs less than the raspberry pi 2/3. ...
5
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5answers
168 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 ...
2
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0answers
12 views

Are there switches with a direct connection between two ports when the power is off?

Are there switches which have a direct connection between two ports (e.g. port 1 and 2) when the power is not plugged in? I would like those two ports linked as if there was a direct connection with a ...
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0answers
9 views

Charger for my Mac [closed]

As discussed in this question, a US to Europe Plug Converter Travel Charger Adapter for Apple iBook/MacBook could be used. However, this particular entry in Amazon would cost ~14$ and I am located in ...
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0answers
11 views

Charging many Qi devices

I have about 30 small (70mm x 50mm) "tags" that are used for tracking objects in a real-time location system (RTLS). The tags can be recharged using Qi wireless charging. Is there a charging pad ...
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2answers
1k views

Externally Powered USB Active Repeater

I have a Surface tablet. And I need to get it's USB signal about 10' away. Here's what I've tried: An active hub 5' away, and that doesn't work. Apparently the tablet doesn't put enough power on the ...
4
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2answers
110 views

Lowest-power laptop

Looking for the lowest-power laptop possible, for use off grid powered by a very small solar array. My Yoga 2 11 draws 14 watts at idle (or what I would call idle, anyway). Five watts would be better. ...
5
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0answers
39 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 ...
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0answers
41 views

Which SSD producer/line has lowest power usage? [closed]

What (current) 2.5" SSD drives proved to consume the least power in real-life measuring? For "real life" I mean measuring the power they actually draw from the PSU, or the power the PSU draws from ...