Guide for Tech Savy People. -

Before you do anything shown in this guide, discharge yourself by touching your power source (the thing where your power cable connects to)or using a static wrist strap because static electricity can ruin your computer. I am not to be held responsible if anything goes wrong.

RAM

Before doing anything, check to see what is your maximum RAM capacity is for your computer which you can find by using Crucial. Replacing RAM is the most easiest and inexpensive way to make your PC run faster, and can easily be replaced. The place your RAM is located is varied, but often looks like this. You can tell it's them by their stick-like looks. In that photo, what I highlighted (little rectangular boxes in white) is a locking mechanism to prevent your RAM from falling out. To unlock them, simply push them down in most cases and just pull out your RAM. After doing so, simply put the ram in and you're done and lock them.( RAM slots are usually in a sequence of repeating colors colors. (ie: Black,White.)

Graphics Card(GPU)

Getting owned in Call of Duty 4 because your graphics card can't handle and wish to replace it? Well here's how. First find your card and unscrew it like this. Now do not just pull it out, in most cases there is some sort of a lock, shown here, after unscrewing the card, simply press down that lock and it will pop up. Then just put the newer card in there, tighten the screw, and prepare to own in Call of Duty 4( It's usually in a sequence, and most of the time is the longest one). Now if you have video card that needs a separate power supply, plug one smaller end into the video card, and the other end should resemble something like this. One should have four holes, and one should have four spikes, simply just plug them together with the ones already in the PC. Remember to install the driver that came in a disk!

Wireless Adapter

First of, be sure that your router and your adapter have the same IEEE protocols such as 802.11b, 802.11g, etc.
The wireless adapter is what it says, it allows you to connect to the internet wirelessly virtually anywhere around your house depending on your router, and is probably the last part to break in your PC. This part is very easy to replace(or add) and is usually under the video card. There should be an antenna on the other side so that makes it easier to spot, unscrew it as shown here, and unlike the other parts, there is no lock so just pull it out. Then get your new card and just plug it in and tighten the screw. For people who want to install a Adapter, the slots for it is usually in white side-by-side, when you've chosen which slot to put it in, just rip the metal tab in the back of the case making a opening for it. If there is two slots, it is safer to choose the bottom out so it does not interfere with the video graphics card. Remember to install the driver that came in a disk!

Processor(CPU)

Replacing the CPU can be very costly because you might have to get a new motherboard and heat sink that is compatible with it. I only recommend doing this if you really need a new processor.The CPU itself is very, very fragile, even if one pin is bent or snapped it will not work. This step is a last resort and should be done with extreme dexterity. The processor is the brains of the entire computer, and may I advise you not to change your processor because you can't play Crysis. First of you have to make sure your motherboard is compatible with the processor, if not the processor will not function. To check simply download a program like Everest. After getting the model, simply Google it and see what processor it is compatible with. Now if you are not really good with things like this, I recommend you take your PC to Geek Squad or anyone you know that is and ask them to replace the motherboard for you. If your motherboard is compatible with the new processor, find the heat sink and see if there is four leg-like things with a symbol turning clockwise. Rotate all the legs counter clockwise and take off the heat sink. And now you're pretty much doing brain surgery here, here should be some gimmick to hold the processor in place, just undo and carefully take out the processor. Now on your new processor the bottom left corner should be should have that little triangle there. Put your processor gently into the motherboard with that triangle on the bottom left, proceed to lock it then put some thermal paste on it, and finally putting the heat sink on it. And now you can take a breather.

Motherboard

I would not recommend you do this step if you're a first timer. Have a friend, or a local computer shop help you. If you are only replacing the motherboard, it would require you to take apart EVERYTHING and put them back on the new motherboard. I will not make a section for motherboards, though you can find a guide somewhere else that does have a motherboard section.

Power Source

This section is fairly easy, so I'll keep it simple.
• Most motherboards use a 20+4 plug (20 by 2 + 2 by 2), which is the biggest one, if it is still not big enough for your motherboard, there should be a 2 by 2 connector to plug into the missing space.
Wattage depends on your components, most of the time, the newer it is, the more wattage it takes.

From Kid24's Guide said: "Component Wattage Required
Motherboard: 15 - 30
Low-end Single Core Processors: 20 - 50
Midrange to High-End Single Core Processors: 40 - 100
Dual Core Processors: 125
Quad Core Processors: 145
RAM: 7 per 128MB
PIC Add-In Card: 5
Low to Midrange Graphics Board: 20 - 60
High-End Graphics Board 60 - 100
New Graphic Processing Unit (GPU): 140
SLI/Crossfire GPU: 200
IDE Hard Drive: 10 - 30
SATA Hard Drive: 45 - 50 (Estimation)
Optical Drives: 10 - 25"

Normal Computers : 300 - 500Watts
Gaming Rig (No SLI/ Cross Fire): 550 - 750 Watts
Gaming Rig (SLI/Crossfire): Two GPUs : ~800Watts+; Two or more : ~1200Watts+

Before you do anything, unplug the power cable, and touch the power source when you're in the case.
First, carefully disconnect everything cable and label them if needed.
Secondly, remove the screws on the back of the case, and put in the new power source.
Thirdly, using the information below, plug all the wires back together.

• The rest should be 4 pin Molex connectors, most of the wires should consist of that. They should be in a pair, the ones with the pin goes into the ones with the holes. Molex connectors can be connected to each other, anyway is fine, but the head with the pins need to go into the head with the holes.

• Hard drive connectors are usually at a 90 degree angle from the base, and all you have to do is plug it in to the hard drive's slot.

• The last thing is the PCI 6+2 (6 by 2) connectors. Note that not all graphic cards need it, but if yours does, then plug it in to the Graphic Card's ports which is usually on the side.