Real problem 4 – 1: Replacing a Power Supply
According to Muller, Prowse, and Soper (2012) the procedures to remove and replace a power supply are;
1. Power down the computer. If the power supply has an on/off switch, turn it off as well.
2. Disconnect the AC power cord from the computer.
3. Open the case to expose the power supply, which might be as simple as removing the cover on a desktop unit or as involved as removing both side panels, front bezel, and case lid on a tower PC. Consult the documentation that came with your computer to determine how to expose the power supply for removal.
4. Disconnect the existing power supply from the motherboard. The catch securing the power supply connector must be released to permit the connector to be removed.
5. Disconnect all other power supply leads to the motherboard (fan monitors, ATX12V, EPS12V, AUX).
6. Disconnect the power supply from all drives and add-on cards.
7. Disconnect the power supply from all fans.
8. Remove the power supply screws from the rear of the computer case
9. Remove any screws holding the power supply in place inside the case. (Your PC might not use these additional screws.)
10. Lift or slide the power supply out of the case.
Before the installation of the replacement power supply one must insure it matches the old one.
1. Lift or slide the power supply into the case.
2. Attach the power supply to the shelf with screws.
3. Slide the power supply to the rear of the computer case; line up the holes in the unit carefully with the holes in the outside of the case.
4. Connect the power supply to all fans, drives, add-on cards, and motherboard.
5. Check the voltage setting on the power supply. Change it to the correct voltage for your location if necessary.
6. Conne...
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...re > check temperature again.
3. After doing the first two steps, you decide overheating is the cause of the problem. What are four things you can do to fix the problem?
• Replace a faulty fan
• Add a new fan
• Solve problems that obstruct air flow
• Replace old thermal compound
Works Cited
Andrews, J. (2010). A+ guide to managing and maintaining your PC (7th ed.). Boston, MA: Cengage Learning.
How can you verify that a user has not overclocked their system. (n.d.). Retrieved March 21, 2014, from http://wiki.answers.com/Q/How_can_you_verify_that_a_user_has_not_overclocked_their_system?#slide=1
Muller, S., Prowse, D. L., & Soper, M. E. (2012, September 25). CompTIA A+ Cert Guide: Power Supplies and System Cooling | Foundation Topics | Pearson IT Certification. Retrieved March 20, 2014, from http://www.pearsonitcertification.com/articles/article.aspx?p=1945640
First remove the air cleaner assembly. Next disconnect the shift cable, and if applicable the park/neutral switch connections. Remove the two 13mm bolts from the cable plate. Now, disconnect the main transmission electrical connector by squeezing and bulling on it. Remove any 15mm nuts for grounds connected to the bell stud bolts, and the grounds. Remove the 18mm bell housing bolts. There will be 4 easily accessible from the top with 3.1, 5 with 3.8. Next install the holding fixture with two hooks to support the engine while trans is removed. This is a large frame like device that has two hooks that support the engine from above while major components have been removed from below. Raise and support the vehicle. This completes the above car work.
At this point, I would attempt to recover all of the information from the system, and place it on an external media mass storage device, like a flash drive, or external hard drive. If the system is damaged to the point that it would not start up, or boot, I would remove the hard drive from the computer, and install it on a separate computer as the secondary hard drive. Doing this means that the hard drive does not need to start up, but will only work if the filing system on the hard drive is intact, thus allowing the information to be removed. To disconnect, and reconnect the hard drive:
If compatibility is not the problem, perhaps it is the batteries. Take note that batteries may sometimes lose their charge if they have been
move your mouse to the Start Button, click on it, move it again over Shut Down,
Well, Before anything else, here is a few names of components that need to be known to not be completely lost. The CPU(Central Processing Unit) (It processes everything from basic instructions to complex functions.) (Techterms.com). The Hard drive (the location of all the computer’s folders, files, and information, saved magnetically so even if turned off it’ll all stay saved). The RAM (Random Access Memory) (The more RAM your computer has, the more data can be loaded from the hard drive into the RAM, which can effectively speed up your computer.)(Techterms.com), The OS (Operating System) (just what it sounds like, this is the system that works the computer, as in Windows, Linux, and Apple OS.) The Graphics card (helps the CPU by processing the graphics portion of what the CPU has to process). The Disk Drive( this is the CD,DVD, or Blu-Ray driver that is installed to use CD’s DVD’s and or Blu-Ray disks.) The last major term to know is the Motherboard ...
...emember that the clean rag was for wiping blood off your hand when you bang it against another part of the vehicle. We do not want this to happen. It makes a mess and does not feel very pleasant. As mentioned in previous steps for removing the plug. The cheater bar may be required and aid in the prevention of banging up hands. Place the cheater bar over the handle of the socket wrench. This allows your hand to be out of the way and also provides leverage to remove the plug. Once the plug is loose, the cheater bar can be removed. Now, follow the same steps as before on the removal and installation of the spark plug wire and spark plug.
later to look closely at the wiring, or even be so bold as to open the box. Not
My first step when I sit down is make sure everything is turned on and operating properly. When the church is opened in the morning, the equipment is powered up in this sequence: the two
After several days of reflecting upon my then recent venture, I naturally gravitated towards wanting a more challenging task. Disassembling my old Nintendo Gamecube was my next project. It had been sitting on a shelf collecting dust. The older child, now neglected as a result of its new sibling, the PlayStation 3. This plan offered
Someone with some kind of car audio experience should attempt these next steps. Start off by disconnecting the negative cable from the battery. First items to install will be the speakers in the car. Usually there will be two in the front doors and two in the rear. First you need to remove any screws that might be holding the door panel on. Usually you will find them around the door handle and armrest. Next position the door panel removal tool under the door panel and align it with one of the round retaining clips. Now just pry the clip upward. Continue until all of them have been removed and the door panel comes off. Now you will be able to see ...
the back of the motherboard and then slide the flat head into the case or plate. Make sure that the motherboard is not touching the case or plate on the back of the motherboard. Now install the plate if your case came with the removable one. Make sure your motherboard is tight but not too tight as to cause it to crack.Next connect the power to the motherboard. If you have an AT motherboard it will use 2 large 6 wire plugs. The black wires have to be together in the middle or you will fry your motherboard and believe me it has happened a lot. They will be hard to install but they will fit just keep trying. The problem is the little tabs placed on 1 side of them. If you have a ATX motherboard then you will have 1 large 20 wire plug. It is made so it can only be installed the right way. If you have a cpu that needs the extra 12 volt hooked to the motherboard then you will need to install it also. It looks different from the other connectors and will install only the right way.
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This may result in a fire, unplug the affected appliance or turn off the circuit breaker, and contact an electrician.
The motherboard is the main circuit board of your computer and is also known as the mainboard or logic board. If you ever open your computer, the biggest piece of silicon you see is the motherboard. Attached to the motherboard, you'll find the CPU, ROM, memory RAM expansion slots, PCI slots, and USB ports. It also includes controllers for devices like the hard drive, DVD drive, keyboard, and mouse. Basically, the motherboard is what makes everything in your computer work together.
What I knew about my computer was how to turn on and off by pressing the big button at the bottom of my computer. I turned on the computer and had no idea what to do next, but I was still happy. I just clicked on everything and did not know how t o go back to the previous screen. Whenever I had problems with my computer, I just turned off the computer. It was pretty simple to clear my computer problems by pressing the power switch. The power switch was a problem solver.