How would you know that you need to replace power supply of cpu?

Answer 1

If you're having a lot of trouble with the computer randomly crashing and the power supply is a cheap no name unit then replacing it can often fix the problem (crap power supplies typically can't provide stable voltages on the rails and so when they don't provide enough components will just stop working causing the system to freeze up).

Replacing the power supply itself isn't such a big deal, you just unplug everything from it, unscrew the screws holding it to the case, remove it, get the new one and stick that in and then plug everything into it (just make sure you don't drop the power supply onto the cards onto the inside of the computer when you're removing or installing it).

If you've got a cheap crap power supply then you probably should be replacing it because the failure rate of those is alarmingly high and they tend to destroy most of the rest of your computer when they fail (good power supplies pretty much never fail and when they do they don't tend to take the rest of the computer with them).

Answer 2

Generally speaking, the power supply is pretty rugged and won't die on you during the life of your PC.

There are other elements inside that may also cause problems, but without a list of symptoms that are causing this concern, there is no way to pinpoint where the problem lies.

If a computer service person told you to buy a new power supply, take your computer to someone else and get a 2nd opinion.

If you DO need a new power supply, take the PC to a professional, which you might consider doing, in either case, in order to alleviate any concerns you may have. After all, it's easy to damage the internal components of a computer if you aren't careful. Static electricity is one of the biggest dangers, and you can't control that without a wrist-grounding strap.

Good luck with your computer.

Answer 3

The higher power of your power supply the better.
when you put some add ons on your cpu
when its been overload the power supply will shut down or the cpu would not run
try to check the capacity of your power supply and count the no. of hardware plug on it there is a seal or sticker on how many watts they use

Answer 4

First sign would be that the fan of power supply stops running and system does not start up. That is the first indication that the power supply is down.

Answer 5

when my computer starts one day and doesn't start the next and then starts the day after that, that's one indication of a bad power supply.
when then memory or the graphics card fails the cpu usually gives warning beeps. but when the power supply fails it just fails

Answer 6

actually, the first sign will be this funny smell that happens. Its like electronics frying. If you are around when it happens you will notice it.

Then it will just go dead. Power button won't turn it on. Fortunately, its like a 10 minute process to replace one and not a big deal.

Answer 7

short the golf eco-friendly and black wires?! Oi, do not take the PSU aside.... ascertain that the motherboard is genuine hooked as a lot because the PSU and the skill button is genuine hooked as a lot because the motherboard. Any lighting fixtures on the mobo once you plug contained in the PSU to an outlet? And this better efficient no longer be a "oh I forgot the turn the change" difficulty... lol sturdy success.

Answer 8

short the golf eco-friendly and black wires?! Oi, do not take the PSU aside.... ascertain that the motherboard is genuine hooked as a lot because the PSU and the skill button is genuine hooked as a lot because the motherboard. Any lighting fixtures on the mobo once you plug contained in the PSU to an outlet? And this better efficient no longer be a "oh I forgot the turn the change" difficulty... lol sturdy success.

Answer 9

Why not make it easy on us and tell us what problems or symptoms you're having......

Answer 10

Check ebay there cheap