pc Definition and 276 Threads

I build new desktop computers every few years and I like quiet machines. Hard drives (to my ears) are noisy, so my last four machines have used a combination of solid state drives and spinning lap top drives. When I use any of these machines I hear faint sounds that I've always interpreted as...

Hi all, I'm justifying asking the forum because I'm currently in an introductory computational physics course that requires Mathematica, and I hope to soon start other computational work. My https://www.amazon.com/dp/B009AEPQDI/?tag=pfamazon01-20's motherboard and hard drive are supposedly...

Hi, I wanted to ask if there would be a problem or two if I placed my pc on top of the head of the marshall half stack amp, the harddrive is about 65ish cm away from the center of the speaker (4x12inch speakers) and the power supply of the pc is about 50ish cm away from the center of the...

Hi, just curious. I am trying to fix my Vaio PC , model PCG -71318L. Intially, PC worked well for a few minutes but eventually froze. I thought it may be a hardrive thing . The computer had been on uninterruptedly for a long time, so I turned it off to "let it rest". After an hour or so, I...

Hi guys I'm going to study CS in college this fall, but don't know if I need to upgrade my computer or not. I understand you need a lot of computing power for some heavy caculation but just wondering is that going to happen at the college level courses. My current set up is a pc with i3 3220...

Any recommendations on multimeters that have a decent PC UI that can graph your data from the multimeter? Budget around $250 which is on the lower end but any recommendations are appreciated.

Which is better: the traditional glossy screen or that newer matte screen?

When I booted my laptop today, I saw a strange message for the first time. "Your AC adapter is not a Dell product. To continue, connect to a Dell brand adapter." My adapter is a Dell, so I unplugged, re-plugged, and it worked OK. I find this behavior by manufacturers offensive, but at the...

I'm frustrated with several of my PCs' performance. The issue may be with their Internet connections, or with other processing issues. Is there some software package that I can run to give me a GUI window showing Internet bandwidth, memory usage, etc, to help me debug the sometimes slow...

Hi, When the modern 80 plus power supplies are quoted as being "87% efficient" on 100% load, does this mean that an 80 plus Gold PSU rated at for example 1000 Watts will provide 1000 Watts to the internal PC components, and therefore draw 1000/(0.87) = 1149.43 W from the wall? OR does it mean...

So 8 AA batteries is 1 Watt, I was just wondering how many batteries it would taje to power my PC for an hour, so if I have a 750W PSU you would do 8x750 to work out the amount of batteries, but is this per minute, second or hour? This is just interest, not actually going to do it!

Hi all, Hope this is not a " where do I buy the latest version of the interweb " question. How does one send a file from a PC ( win 8.1 ) to a smart phone, knowing only the phone number? What info do I need in order to send it? Thanks. EDIT: Never mind, DUH. If I received a file in my email...

I'm just starting school as a Liberal Arts intending to major in Physics at my Local CC. **This question is for FUTURE REFERENCE!*** In regards to software support, what OS would I need? I've heard mixed reports & more forums leaning towards the Macbook Air / Pro side. Is this correct? I'm...

Homework Statement Can the equation E = pc be applied to particles? Why or why not?Homework EquationsThe Attempt at a Solution It can be applied to particles that DONT have a rest mass (photons, which are particles). It can not be applied to particles that have a rest mass (almost everything).

Last year I took introductory computer architecture. The course focused mainly on microcontrollers rather than PCs (I'm taking that one next year), and we learned about things like instruction sets. But the discussion was mainly limited to microcontrollers and very simple architecture. I also...

Hello, my motherboard recently has stopped working, so I returned it to warrany, they fixed it, but after a few months the board broke again, but unfortunatly the warranty has ran out, so I'm attempting to fix it myself in the freetime :D So I have found a resistor on the motherboard, that looks...

Dear all, I'm an electric engineer, and I usually work with software as Ansoft Maxwell, Matlab, Ansys, COMSOL... I need a PC for serious professional simulation, and I would like if someone can give me some tips of the characteristics I should ask for this purpose. I don't want to spend more...

I have an old Windows Vista PC that has started acting up. Normally it is in the sleep mode. Lately when I push the start button the fans start running for 2-3 seconds and then it shuts down. This can happen many times in a row but if I lift one side of the computer case a bit (which lies flat...

Just a dumb question: What kind of object is 'My PC' in Windows 8.1 ? when one goes to 'file explorer' , it contains a collection of folders. So I thought it is a directory, but my friend disagrees with me. Who's right?

Hi, I am in the process of deleting some services ( or at least stopping them from being loaded upon starting up), but I don't want to delete my restore points. Which services will have the effect that their removal will delete restore points? WWGD: What Would Gauss Do? ( If he knew about...

Hey all, I really love windows 95 and miss it alot. I'm wondering if there's a way to obtain it on an iso or something? Has anyone done this? Any adivce? Any help apreciated.

Hello all, i need your help. And thank you forward for those who will. Im looking for a computer program, that would simulate physic...most important would be simulation of magnetism , gravity and mass. Simple form of what i am looking for: Make cube in 3D world, set its mass, set its material...

Hi All, I am having a problem: no sound coming out of my Windows 8.1 laptop. I updated all the drivers from the audio inputs ; I got the message that the existing drivers were up-to-date, but still no sound coming out and that all sound-related devices are working correctly. Thanks for any advice.

Okay so I've had my PC for 5 years and my sidepanel intake fan is shot and I was wondering how to know what fan I need to replace it or if any standard intake fan would work?

Two days ago my desktop PC died. I'm about to perform a little Techromancy in an attempt to bring my desktop back to life. Wish me luck. If anyone wants to help, grab a few resistors from the nearest store, sprinkle them on the ground in an omega symbol, and chant 'Ohhmmm...' for me. Note that...

Hello, I'm not sure if this is the place to post this, but I'm hoping that someone here will be able to help me. I am trying to hookup two Sony SS-B1000 speakers to a Klipsch 5.1 system subwoofer (I have attached images of each for reference). I only want to setup a 2.1 system for my PC...

So, every time i get a new game i have to change the controls, because the default controls for moving are wasd, but i prefer esdf. To me wasd makes no sense. first off, esdf are the home row keys so my fingers naturally go towards those. the only way this could possibly make sense is if you...

Hi, I am trying to charge some maxwell ultracapacitors (2600F @ 2.5V) with a 1000 watt PC power supply. however when fully discharged, the supply thinks the cap is a dead short and the safety mechanism kicks in and no charge happens. Is there a simple circuit I can use to prevent this...

$\triangle ABC$ with $AB=BC=CA$ if another point $P$ and $PA=2, \,\, PB=3$ please find :$max(PC)$

Hi, When I’m studying for long hours and taking notes on my 24” IPS-panel, power-consuming PC-screen I often feel like my eyes dry out fast and sometimes my body feels ill. This happens much faster than if I read my chemistry/science books without my computer turned on. However I need something...

hey pf! i had a question. my university uses MATLAB for computing on a PC. however, i am using a Macbook. do you think the two can sync with each other? i am waiting on purchasing MATLAB until i know for sure both an communicate with each other. thanks all!

Has anyone used The Astronomy on the Personal Computer book by Montenbruck and Pfleger? It covers quite a lot of useful astronomical techniques, and provides the C++ code on a CD-ROM to compile and operate them. I haven't bought the book yet, but I have a borrowed copy. To compile code they...

Homework Statement Derive from Maxwell's equations these Hill equations for 's' and 'p' mode waves; s\hspace{3mm} modes: E(r,t) = \Psi_{s}(z)e^{i(\beta x - \omega t)}y \\ \hspace{10mm}Hill\, Equation for\, \Psi_{s}(z)\\ \hspace{17mm} \dfrac{d^{2}\Psi_{s}(z)}{dz^{2}} +...

Computer games are cracked so that you don't have to buy the original cd and play for free. Well what exactly do you mean by crack? What do people do so that you don't have to buy the cd? I want a technical answer. And also I'm not really asking how to crack but rather what is cracking.

My PC has been locked by a virus claiming to come from the police and demanding a "fine" to free it. I can run the PC using Ubuntu, how can I find and remove the virus when operating on Ubuntu?

Anyone interested in them can post here I'll start by posting my specs i5 3570k @4.2GHz Gigabyte GTX 760 Gigabyte Z77X-D3H 4GB DDR3 RAM @1600MHz 1TB HDD 23" 1080p monitor

Hello, I was considering a small project to solve an issue with PC case fans. If you have fans on the removable side panel, the wires to power them is quite a pain to disconnect each time you want to take the panel off. I was wondering if it would be possible to take something like this...

I'm looking for advice on buying a tablet PC. I'm a Droid Razr HD smart-phone user, Windows PC user and I don't think I own any Apple products, so I think that basically rules-me out of the iPad market. And I want to be able to use it effectively for work, which means it needs to run MS...

Hi PhysicsForums. I have a question. I was looking through a manual for an industrial grade PC, which is fanless, with the CPU mounted directly onto the chassis which is practically one large heatsink. When considering side-mount applications for this PC, I noticed that the manual had a...

Should I go with a PC for nuclear engineering? xholic

Is an AVR still necessary if the desktop PC is already connected to a UPS? Many articles online including this link to Wikipedia: http://en.wikipedia.org/wiki/Uninterruptible_power_supply#Common_power_problems State that the UPS already has built in circuitry that is capable of...

I recently decided to switch to Linux (Ubuntu 12.04) from Windows. Do others here run Linux systems, Windows, or Macs OS? I don't use dual boot. I totally removed Windows. Start times have improved exponential and the amount of free space just from removing Windows is amazing. Which...

Please recommend a high quality power supply (at least 1KW) for this new gaming build. I haven't finished it yet, but it should be complete within the next few months.. *Core i7 3770K *Corsair Dominator Platinum 8GB DDR3 1600MHz cl9 RAM *MSI Big Bang Mpower Z77 motherboard *Two-way SLI GTX 680...

Hey all, I bought a cathode light kit for my PC case a couple days ago and decided I wanted to mod it so that I could have a switch on the front of my pc to easily turn it on and off. Today I spliced the wire and threw a switch on and soldered it up. I've tested the switch and it works...

Will two-way SLI GTX 680's (overclocked) run any PC game on max spec @1920x1080 with smooth framerates? I read that the new GPU benchmark is Metro The Last Light. No other PC title will test your hardware like that game..

Please share name of softwares installed in your PC, I have very little only Adobe Reader XI(PDF viewer), Basic MiKTEX (LaTeX Editor), Oxford Advanced Learners Dictionary , Britannica Encyclopedia and internet browsers.

I am Currently using Dell Inspiron(i5 & 4GB RAM) with dual Windows 7 and Windows 8. This time I got comfortable with Windows 8 so I want to install Mac OS X on it. How can do that.

I am using Dell Inspiron PC and Windows 8 Pro. Today My PC Screen is Zoomed out, everything looks extra large. how can I back to Normal View. Please help.

Hi, I am in the middle of a project dealing with the mass loss rate of protostars and hence I am working with the distance that these sources are away from us. I need to find the error in these distance measurements, however I cannot. In any paper (I find) that cites distances it just gives...

I read that the next-gen "Haswell" Intel processors are going to offer roughly 50% more performance than the current Ivy-Bridge architecture. Although I'm not sure how valid that statement is because someone on a PC hardware forum told it to me. Clock for clock, the jump from Nehalem to SB and...