How to install a Power Supply

I bought a new Power Supply for my computer. How do I install it. I have a Pent. 111 with Windows XP Profes.

 

Read here: Installing Power Supplies

 

Thanks Russ. Good information. Tomorrow I will install it.
Great site also for other information.
Barbie

 

Could a power supply be "bad" yet still supply enough power to light up the green on light indicator and power up a couple of fans but not boot the system and power up the monitor? The monitor is fine, I tested it on another system.

 

Ace-It has nothing to do with the power supply being bad-it was. Machine was very loud when it started and the noise was coming from the Power Supply-so just got a new one. Thanks anyway.

 

Barbie,

I was posting that question for myself. I have a situation where I THINK it may be my power supply that has a problem.

 

The only thing that moves and can make any amount of noise in a power supply is the cooling fan. Sometimes all they need is a good cleaning. IF you have not been getting any unexpected shut downs on your computer, good chance the power supply is good. BUT... fans / wiring can be soldered or some form of electrical clip connection. IF you want we can find how to instructions. Could save the cost of PS for price of a fan.

 

Dennis,

What's wrong with my other system is more than a fan. Yesterday it just shut down on me. It won't boot, there no beep, nothing but what I mentioned in a previous post here.

 

Hi AceH

If your system has unscheduled shut downs, it "could" be a P/S problem. You seem to be describing a "complete electrical shutdown ". Naturally check all the circuts servicing power to your computer. Next, does it every get "power-up" capability back? If yes, you could also have a weak memory chip, check fans on MOBO, P/S and give complete cleaning. If you NEVER get power to the computer... P/S or start-up switches in the computer. There was a thread about December'th on how to by-pass switch. This should give you a place to start.

 

The answer is yes.

P/S units have an output of higher voltage for the fans, drives and etc.

There is a lower 3 or 5 voltage output that supplies the more delicate integrated components.

Both or either output is independant of each other, and either or both good fail. It appears your higher voltage output is OK, but the lower voltage is not there or there is an interruption to the component and/or the component is bad.

The monitor has its own AC source, and that source should not have anything to do with your PC P/S??

 

Further to this thread, you have gotten some very good information. Things to check beyond PS include memory and Video Card seating. As to the PS inquiry, although it sounds like your problem is a recent one after an extended period of "no problem" usage, I have had some perfectly good Power Supplies create havoc with unexpected shutdowns and etc. due to the fluctuation in voltage experienced during normal use as different components "kicked in ". This is not going to be your situation, however, it is quite possible that your PS is going bad. Not all things last forever. If you decide to try a replacement or sustitute, make sure that buy something decent and if you have a Dell, make sure your ATX connector or header pins are matched or you will fry the MB.

 

Useful Info on Power Supplies

Some useful info on power supplies here: How PC Power Supplies Work