What are key points of computer power supply safety?
467337
I'll try to be simple, because its trial and error.\nYou need to ensure that the intake and exhaust vents on PSU is clear of debris or dust. Clogged vents slow down intake which could stop the fan and overhead the PSU, shutting down the system.\nMake sure all the power supply cables that run to the mother board and drives have no cuts that may expose wiring, which could cause a short or fire.\n\nDo you need SEVERAL?! because the PSU is a simple part of a system, and doesnt have that many problems for safety compared to all the circuit boards on the Cards and the Mother Board, and the Drives. Just make sure to point out the fans need to be clean, and the vent, to keep the PSU cooled, and the wires should be free of nicks, and try to not tangle the cords, that may cause kinks in the power cord, which affects power and performance.
662421
Yes its safe as long as you have no children or animals trying to get into it. You might have to keep an eye on the dust problem, But if you want a solution then have a look at water cooling for your computer, It will cut down on the dust that gets sucked in to the system, it will keep your computer cool so it will perform well and it will cut out most if not all of the noise.
744801
could be a power supply or overheat issue
656517
could be\n\nA. Power Surge!!\n\nB. Processor Over Kill\n\nC. Poor Wiring/Connectors\n\nD. Substandard Equipments\n\nE. Bad power Supply\n\ncould be any of this
834535
You will need to open the case if it is not written on the back of the PSU.  That information is not shared to the computer.  You can check on the manufacturers site but, since Dell is a multi-vendor supplier, your computer and someone else's computer of the same name will not necessarily have the same power supply.  You will not need to do any serious dissembling of your case in order to read the sticker that states what it is.  Just remove the side panel or open the clam shell and it should be visible.  If you have trouble reading it all but can get the product ID number then you can search for its specs online.\n\nMost power supplies are very similar in size (woot stanadards) but it could be an unusual size.  It will be written on the sticker along with what it is rated for.  If you are looking for a replacement or wondering if a system problem is related to your power supply you WILL need to look.  Power supplies are often the first piece of hardware to fail on a computer and adding additional hard drives, cd/dvd drives, memory, or a faster processor will increase the required available power.  Computer manufacturers usually use the bare minimum power supply they can.  You can pretty much pick out a good power supply by its rated wattage and it weight.  A good power supply will be heavier.\n\nSo the short answer is no.  If you have a specific problem related to the power supply post another question.\n\nHope this helps and GL :-)
1025865
It's a homework question...am I right?  It's cool, you need help just the same, why not give some?\n\n1. Volatile memory (RAM)\n2. Non-volatile memory (hard drive, disk drive, CD-ROM...)\n3. Power supply\n\n(your turn) :-)
483915
UPS - Un interrupted Power Supply\n\nUSB - Universal Serial Bus
230512
There is a piece of hardware in the back of the computer called a Power Supply. It converts the electricity from the wall into something the computer can handle. The Power Supply also has a off switch. If you hit that all electricity ceases to your computer, thus making it impossible for the computer to turn on. When that light is on it means the computer is receiving electricity.
523178
If you are lucky, you won't have any problems.  BUT, and it's a big BUT, often if you lose power for even a second or two while your computer is engaged in something like a defragmentation process, you can really louse up the File Allocation Table or other processes, and be unable to recover from it without completely reformatting your hard drive and re-installing Windows and your other programs.  My advice to you, if you live in an area where you have frequent power glitches is to buy yourself an Uninterruptible Power Supply (UPS).  This device gets plugged into the wall socket, and your computer gets plugged into the battery backup outlet on the UPS.  If the power fails, your UPS instantly switches so that the battery feeds regular 110V power to your computer so that it continues operating normally.  Depending on the strength of the battery backup, it can provide that power for quite some time, and at least gives you the opportunity to shut down the computer normally if the power loss continues for some time.  \n     To read more about a UPS, go to the link below and read the FAQ's there.\nGood luck.
276822
I recently read about new power strips that cut even standby power to equipment that are plugged into them. For example, your computer and printer still draw a current even if shut off. this tricle can add up over the course of a year. These power strips cut off that tricle until the moment the unit is roused from standby.\n\nThis was in a pretty good article in this month's Kiplinger's Personal Finance magazine.
972206
For computer to do it, I would have been thinking a short in the PC's power supply, for two, no way. I am guessing your computers are connect via the same point of double adapter somewhere and have a suspision that there is a break in the Earth within the cables or adapter somewhere.\n\nThis means the chasis of your computer will not discharge and slowly creap up to high voltages over time, even though the PC's are not on.
985923
It's very dangerous if you don,t know wath you do. You need to  go on your bios to upgrade it. But make sure is that you realy need. If there is a pan of electricity in the time you do it, you will need another pc with the same chipset to arrange that.
46919
No, it is a balance. You Match the power supply output with the load requirements of all the components. Most have reserve capacity.\n\nWhen you upgrade your computer with more hard drives, more powerfull video or sound cards then you need a more powerfull power supply
775380
You have to consider steady-state security and dynamic security. It is the ability to provide rated voltage at rated frequency, and have enough "margin of safety". For example, an overloaded generator is a weak link in the overall security of the system, because it would be the one most likely to fail. An overloaded Tx line would probably sag so much that it might be susceptible to line-to-line faults in a wind. One way of estimating security margins (steady-state) is to run power flows at the current state of the system, and using short-term load-projections, run more power flow computations, and estimate the operating margin you have before over-load relays or transformer protection start operating and cause cascade failures.
804522
its a way for your computer to save energy while its not in use.
489134
a 400 to 500 watt power supply would solve the problem
319509
Its impossible to tell how many watts the computer is consuming by a program, but there are ones out there that can tell you the voltage.  this is what you need to know.  as far as if you power supply is powerful enough, anything of 450 should be more than enough unless you have some kind of huge amazing rig setup.  Mine is 500 and Im powering 3 hard drives with it.