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-3
votes
0answers
12 views

Quadcopter, Arduino [on hold]

I am trying to build a quadcopter using 4 1000Kv DC motors. I have a mobile portable charger which says 'DC 5V 1000mA' output. So my question is can I run those motors using this portable charger? ...
3
votes
1answer
25 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 ...
0
votes
1answer
14 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 ...
10
votes
4answers
238 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
votes
1answer
38 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 ...
3
votes
3answers
34 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)?
1
vote
1answer
35 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 ...
-1
votes
2answers
44 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 ...
1
vote
0answers
50 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 ...
-2
votes
1answer
69 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
vote
1answer
50 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 ...
1
vote
0answers
29 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 ...
0
votes
2answers
144 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? ...
1
vote
2answers
110 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 ...
0
votes
0answers
50 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 ...
1
vote
1answer
227 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) ...
-1
votes
1answer
58 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
vote
1answer
37 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
votes
1answer
515 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 ...
1
vote
2answers
462 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
vote
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
votes
1answer
629 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?
-2
votes
1answer
34 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 : ...
0
votes
2answers
40 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
562 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. ...
0
votes
4answers
651 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?
8
votes
1answer
834 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 ...
0
votes
0answers
61 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 ...
-1
votes
1answer
79 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 ...
2
votes
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 ...
-1
votes
2answers
312 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 ...
-1
votes
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 ...
0
votes
1answer
452 views

Can I put two kingston value ram of different nominal voltages?

My MacBook Pro Mid 2010 has two ddr3 so-dimm ram slots capable of hosting totally 8gb. I already have one kingston value ram module 1066 Hz 4gb and I want to buy another 4gb module. There is the ...
1
vote
2answers
968 views

Can Current Backflow from Powered Hub's Adapter & cause PC Damage?

Getting this short: Can current flow from a powered USB hub's power adapter (lying 10 Meter away) back to computer via usb port and cause damage to Computer components like mobo, etc? What should be ...
-2
votes
3answers
558 views

What do OUTPUT charts of PC Power Supplies mean?

I'm looking at various power supplies and they all come with different output cables. They also have different OUTPUT charts, for example: What I'm wondering: What are these output columns are ...
3
votes
1answer
167 views

Ever have bad voltage on an ethernet jack on a router/switch?

So I've got a bit of an odd problem I'm trying to solve. I have an ASUS RT-N66U router which has a desktop, xbox, and my brand new NAS directly wired into it. Whenever I hook the brand new NAS up ...
8
votes
2answers
25k views

Hooking up my power switch/reset switch/LEDs

I'm working on building a computer (first time for me). There are several plugs that I need to connect to the motherboard (Power LED, reset switch, etc). Of the two wires, they are either: Color ...
3
votes
1answer
515 views

Intel DH61AG CPU, fans, and voltages not reading in BIOS

I'm looking for the cause and/or fix of an issue when during start up of the DH61AG board the fans go full speed as they normally do but stay at full speed rather than slowing. In the BIOS the PC ...
1
vote
0answers
129 views

Should you worry about high voltage and wattage on a non-overclocked computer?

I've been wondering if I should be worried at all about high wattage or voltage on a non-overclocked computer. I say non-overclocked because when I Google search this question or something similar it ...
2
votes
1answer
1k views

Different RAM voltage

on my PC I have 2 kingston RAMs. The only difference is that one runs at 1,35V, the other at 1,5. As you can see frequency, latency and others doesn't change. My motherboard is an Asus ...
2
votes
2answers
427 views

UPS switches to battery power when plugging in devices?

Over the past week or so I've had my UPS switch over to battery power briefly when plugging in new devices (possibly limited to just AC -> DC chargers, but haven't tested anything else). I had ...
1
vote
1answer
8k views

Using adapter with higher output voltage?

My adapter is broken, and I'm currently using another one while I'm waiting for a new adapter. The input voltage and amps are the same for both adapters, while there are difference in the output ...
1
vote
1answer
1k views

Have a 40W power supply - will it power a laptop that needs 65W? (18.5v 3.5A (=65W))

Have a 40W power supply - will it power a laptop that needs 65W? I know that the basic calculation, voltage x amps = required wattage, so 18.5v x 3.5A =65W I realise that it should only draw the ...
0
votes
1answer
311 views

Overclocking AMD Sempron +2400

Basically, I wanna ask is there a safe way to overclock the mentioned 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 becomes ...
0
votes
1answer
293 views

How can a power supply rated 7A be strong enough for two devices rated 5A? [closed]

I am not understanding something fundamental to amperage: Consider this adapter which outputs 12V 7A. It claims that several (eight, in this case) devices running at 12V 5A can draw enough power from ...
0
votes
1answer
78 views

Are Samsung Series 9 ultrabooks (purchased in the US) compatible with 240V/50Hz power input?

I'm traveling and I'm curious if I can use an adapter. I have a replacement power chord and it states that it can take in 100V-240V, 50-60Hz, but I want to make sure that the ultrabook itself accepts ...
0
votes
1answer
120 views

No display Asus x44h

My laptop is an Asus model x44h. Last night due to high voltages, my charger and laptop were damaged. Now my laptop display shows nothing but I can still hear the login sound. Can anybody help me ...
0
votes
0answers
393 views

Observing Output Current/Voltage from USB Port

I am working on a project where i am required to observe the current draw from a circuit. In a lab, I have access to power supply/multimeter and can easily check how much current is being drawn from ...
0
votes
0answers
103 views

probe processor voltage in linux

I am in a redhat server I've tried to use lm-sensors to detect my processor's voltage, just like CPU-Z in windows environment. But after I using the command "sensor-detect", only processor's ...
2
votes
2answers
232 views

Turning on lamp pauses sound in my headset

I have my headset connected to my PC with USB. When I turn on my lamp on my table (fluorescent) the music from my headset pauses for about a second while the lamp powers up. Then it's back to normal. ...