Voltage is the measure of electrical current. This tag should only be used when asking questions related to powering computers and peripheral equipment. It is not for asking about voltage issues related to the commercial supply of power to your home or office.

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1answer
17 views

Right Voltage, still not charging

My charger died a bit ago and even after ordering a new one with the exact same Voltage (19.5v) and Amps (4.62a), the laptop does not charge. Is there something that needs troubleshooting, or has ...
0
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1answer
22 views

checking desktop power supply voltage range.

I have a few computers. I know some of the power supply is 110-220 and some are only 220. I need to figure out which ones are which. How do I do that? I can't seem to find it in the control panel. Is ...
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2answers
52 views

Is it bad to put 3.7V on 3V mice?

I have mouse that take two AAA batteris, so it take 3V. Is it OK put one 10440 of 3.7V and one spacer instead?
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1answer
27 views

3.3v rail randomly going low after a period of use

I am having a recent problem with my PC. After a "random" amount of 100% stable running time (anything between 1 - 12 hours), the 3.3v rail will suddenly start dropping step-by-step from 3.36v to ...
2
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1answer
71 views

Motherboard is showing 24v instead of 12v

I have put together a new PC build and when I turn on the machine it's showing me the following error/warning: "Asus anti-surge was triggered to protect system from unstable power supply" Besides ...
1
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1answer
41 views

Laptop Power Supply Modification

I have an old laptop which I no longer have the charger for. I ordered a new charger for the same laptop series, but the plug is too large, and it is unlikely that I will find the same adapter (Acer ...
0
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1answer
17 views

Voltage Nominal range vs Maximal range

I have a printer , that has this specification about operating voltage : Nominal Voltage Range : 100-250 VAC Maximal Voltage Range : 90-264 VAC. I need to know the difference between Nominal and ...
0
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1answer
45 views

Monitor with different power supply

I want to power a monitor using a 12V car battery. My monitor uses 19V and 1,5A of power and it includes an AC power supply. However, I don't want to transform my 12V into 110 or 220V and then let ...
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2answers
10k views

PC power supply & normal range for voltages reported in BIOS hardware monitor?

I'm trying to diagnose whether my computer has an ample power supply. Sometimes when I play a video-intensive game, both monitors lose the video signal, even though the computer remains on and sound ...
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1answer
56 views

GPU Voltage lowers after a few seconds of load?

I have a 650Ti, and I'm looking to overclock it. I'm using MSI Afterburner, and while I'm stress-testing etc. I have the logging graphs open. Under max load, with no overvolting, the default voltage ...
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1answer
90 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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1answer
44 views

One laptop charger for laptop and monitor?

I have a monitor and a laptop and their chargers together are 91W. Both of them are 19V. So I was wondering whether I could just use a 90W charger and a cheap one male to two female 5.5x2.1mm splitter ...
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1answer
68 views

Do i need voltage stabilisers for Computers and other electronic devices without motor?

Searching on internet i've found this article https://www.bijlibachao.com/appliances/voltage-stabilizer-for-television-refrigerator-air-conditioner.html Where i've read that electronic devices and ...
2
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0answers
170 views

Under what conditions will a group-regulated PSU damage a modern computer?

These days group regulated power supply design is considered obsolete and is ideally avoided -- primarily due to the poor regulation under crossload. For example, Shilka pulls no punches here, and ...
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0answers
39 views

Power adaptor seems to be outputting too high a voltage

I'm in a country with an unreliable national electricity supply, where staff in the compound in which I live run a generator at certain hours if there's no national power. Recently, the generator ...
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1answer
357 views

Overclocking AMD Sempron +2400

Basically, I wanna ask is there a safe way to overclock AMD Sempron 2400+ processor to 2.0GHz (Stock - 1.67GHz, Single core). Now it's running @ 1.8GHz and 1.5something V, as I run it @ 2.0Ghz it ...
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0answers
33 views

New 52Wh battery on Samsung NP540U3C

My battery on my 2.5 year old Samsung NP540U3C laptop is dying and I need a new one. I have been searching through the web trying to find an original one. And in order to find the excact one, I have ...
1
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0answers
39 views

TV connected to PC goes black for a second on its own or when turning a light switch on/off [closed]

I already read a few questions around here about this issue and while some of them provide a good clues, I think mine is specific enough to deserve its own question. The problem: TV image goes black ...
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4answers
13k views

Is it better to use an offset or manually set CPU voltage (with respect to CPU longevitity)?

The Background: I recently built a new computer, and I'm working with the ASUS P8Z68-V Pro motherboard and Intel i7 2600k processor. While this question does not pertain specifically to my hardware, ...
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1answer
108 views

Are all DDR3L (1.35V) DIMMS safe to use in a computer system that uses DDR3 (1.5V) DIMMs?

The sales support of (the consumer/prosumer sales subsidiary of) a DRAM manufacturer answered a pre-sales question I made with (translated from an email in French): 1.35V Memory DIMMs are dual ...
1
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1answer
28 views

Laptop quit charging, needs new charger but which one?

I have an HP Pavilion g6-2211nr I got it about 2 years ago. This last couple of months i havent been able to use it because It stopped charging. For a while It would if i held the cable a certain way ...
11
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4answers
376 views

Got shocked by a native dell laptop charger outputting 19.5 V 6.5 A DC. It was REALLY uncomfortable, but was that dangerous?

Okay. My laptop was running out of battery. I grabbed my charger (outputting 19.5 V 6.5 A DC) which was plugged into the wall, and as I touched the end of the charger I got some electric shock going ...
2
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1answer
186 views

Using RAM stick with different voltage?

I would like to upgrade the RAM of my laptop. its a Toshiba Satellite L850 - 13D, Windows 10 , 64 bits, it has 2 slots for RAM, the one I have is 4gb, I don't know if I can add another one, but ...
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3answers
76 views

Can computer power supplies use North American 240V (hot-hot-ground)?

Simple question: Most computer power supplies are auto-sensing between 110V/120V and 220V/240V. This begs the question, can they use 240V in North America i.e. connected to both hots (red and black)?
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1answer
52 views

Are CPU voltage and RAM voltage related? What are the mutual constraints?

I was wondering if the maximum value of my CPU voltage range is a constraint on my RAM voltage. An example: My VID Voltage Range is 0.60V-1.35V and my memory modules are to operate at 1.5V. Am I in ...
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2answers
65 views

Charge a laptop with lower voltage

I want to charge my laptop using a 19V connector from a turtlebot. It has a special "Laptop charging connector" that delivers 2 Amps at 19 Volt (I measured 18 Volts though). I have a Lenovo that ...
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0answers
114 views

5v rails is getting 5.7v even with new PSU

I need help. I'm on my mobile typing this so i'll be word efficient. (English is not my native language and I only have a basic understanding of pc's) What's the problem? After the weekend I tried ...
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votes
1answer
131 views

Will an external battery power bank power an mini-ITX board (~200W)?

I was planning to build a laptop from scratch, and I've found some good DC-DC converters that allow you to use an external power source to power a standard desktop board (in this case a mini-ITX). The ...
1
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1answer
75 views

Does Laptop power supply matter? [duplicate]

I have a power supply which is 19.5V and 6.15A. My friends power supply or laptop probably broke and his power supply has a 19V and 6.32A. His charger comes with an adapter which fits my plug ...
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0answers
52 views

Can I reduce the consumption of a Peltier cell by lowing down its voltage? [closed]

I have recently bought a Peltier cell: a small board that cools any device, like a CPU or a GPU. I have tested it and it works fine, but its power consumption is too high, due to its intake of 12 ...
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2answers
323 views

Does a PCIe 8pin power cable use just one 12V rail.

Looking at a diagram below of a PCIe power supply connector it shows it has 3 12V pins. When it's plugged into the PSU how many 12V rails does it use? I assume it is just one, but how does that work? ...
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2answers
270 views

PC monitor adapter amperage/voltage

I am new here. I just got a PC monitor with an adapter that doesn't belong to it. The monitor requires a 19V 2.6A power source but the one I was given is 15V and 5A. It works just fine, but I would ...
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0answers
77 views

my usb dissconect for 1 sec from laptop duting a voltage fluctuation

i live in india where there are 1 voltage fluctuation per minute. when my laptop is connected to ac and then a fluctuation occur my usb device disconnect , it works fine when my laptop is on battery ...
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1answer
257 views

CPU voltage settings set in BIOS always stay the default

Default voltage is 1.5v.It can be set to the highest setting (1.55) or even to 0.8v but the voltage always is 1.5v. How to make it 1.55v? Can I somehow make it higher than listed there (like 1.6v) ...
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1answer
63 views

Is 208V 3phase enough to supply a 220-240V UPS?

Our input voltage is 208V 3-phase but we are not certain if it's capable of powering a 220-240V APC UPS. Can this power supply be used with this input voltage?
1
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1answer
56 views

wireless router power adapter replacement 0.5a vs 0.6a

i have a wireless router with no power adapter, it needs a 9 volts 0.6 amperes adapter but i only have 9 volts 0.5 amperes power adapter. Will 9 volts 0.5 amperes power adapter damage my wireless ...
0
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1answer
669 views

connecting two 3.7v battery's to tablet, in parallel for extend the working capa

my tablet have 2500mah battery. it works for four hour. but I want to extend the source power. so I want to connect another same voltage battery to tablet. battery was 1500mah. can i make connection ...
2
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2answers
859 views

Mouse rating 1.5V | Can I use a 1.2V rechargeable battery safely?

My mouse rating is 1.5V, I've been using it with alkaline AAA batteries which provide 1.5V. My question is, if I have a 1.2V rechargeable battery, is it going to work anyways without issues? I'm just ...
1
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2answers
3k views

Power supply bad with good voltage?

I am trying to drive out the reason I am having some hard drive "hard resetting link" error problems on a Linux Debian box. I am trying to eliminate the power supply as a problem in trouble shooting, ...
2
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1answer
1k views

Can low voltage damage laptop or it's battery?

Sometimes I get very low voltage in my house. I am worried if I connect my laptop charger to the socket, will it damage the charger, battery or the laptop itself?
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1answer
46 views

Power Adaptor Compatibility [duplicate]

my Sony Vaio Power Adaptor broke today and i wondering if i could replace the broken one with the Adaptor from my older Vaio, here are the specs : Broken Adaptor : VGP-AC19V54 Old Adaptor : VGP-...
0
votes
2answers
44 views

Using RCA to read voltage [closed]

I've connected an RCA cable to a device to read an analog voltage signal that's +/- 2.5V from what I can tell. The problem is that I need to somehow connect the other male RCA end with the computer in ...
0
votes
1answer
643 views

How to overclock CPU using only FSB?

According to my BIOS the CPU temperature and the system temperature are 16°C and 18°C respectively for Idle on stock air cooling. (It used to be 40°C and 48°C when I kept my computer inside a case. ...
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4answers
836 views

What negatives can occur when installing mismatched memory? [duplicate]

Specifically, if I have a machine spec'd for 1.5V and I install 1.3V RAM modules, what side effects can occur?
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1answer
1k views

I have a 3.3 Volt PCI ethernet card working on a 5 Volt PCI slot. How is it possible?

This is the design for PCI slots: As you can see, there are 32/64 bits and 3.3/5 Volts. For what I know: 32 bits PCI cards can work in 64 bits slots of the same voltage. 64 bits PCI cards ...
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0answers
65 views

Computer slow after plugged into wrong voltage

So I set up a desktop computer running ubuntu in a classroom that was running through an AVR at 220 volts. I got a report that it wasn't working, so I came to look at it, and sure enough, fans and ...
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1answer
94 views

How do I evaluate which RAM to buy as an upgrade?

Hello i have 2x4GB ddr3 rams operating at 1.35v here you can see http://gyazo.com/b7ce756c365d94e871aa7753f2c89319 im getting 2x4gb dd3 new ones http://www.amazon.com/gp/product/B00J8E8ZLK/ref=...
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2answers
2k views

My dlink power supply broke, I found a similar one on old boxes. Is it going to damage my router if used (specs and pic inside)?

I have an old dlink wi-fi router to connect old 802.11g devices at home. It's power supply just fried after a storm. Buying a new power supply is almost the same price as a used router like mine, and ...
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2answers
449 views

In trying to fix my laptop power adapter, current is going through the wire but the laptop will not charge?

My laptop power adapter has recently stopped working (will no longer charge my laptop), and I would prefer to fix it if possible, instead of putting a couple hundred bucks into a new one. I used a ...
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3answers
1k views

What happens if I put an 1.5V ram stick in a 1.65V rated Motherboardslot?

I'm going to bulid my new gaming rig pretty soon. I allready got my DDR3 Ram sticks(KVR16N11K2/16 by Kingston). Is it possible to put those in a Motherboard which has 1.65V Rated RAM-Slots(the ...