Today’s processors are running quite hot. Advancements are being made to make them run cooler at higher speeds, but the importance of a high quality heat sink and fan cannot be overstated. PCs that are not properly cooled can be quite unstable, or at its worse, it may not even boot properly.
Some heat sinks have a rubber heat pad on the bottom of them. In these cases, you don’t really need to use heat sink compound because the rubber pad will create the seal. It should be kept in mind, though, that if you are using a heat sink which has been used before and had a heat pad, that heat pad is now likely melted in the spot where the previous processor contacted it. In these cases, you cannot use the heat pad again as it will be ineffective. Instead, you need to clean the old rubber pad off of the heat sink using a non-abrasive cleaning compound. Many people use isopropyl alcohol and a broken old credit card to scrape the rubber off without damaging the heat sink. When the pad is removed, you can use the heat sink again using heat sink compound.
You should now install your memory modules. For the purposes of this step, we are assuming that you have already chosen the appropriate memory for your PC in Step 1. So, we will jump right into installing the memory.
It is important that you consult the manual for your motherboard to see about any particular sequences in which memory should be installed on your board. Some boards require particular sequences of memory installation, usually depending on the memory capacity, type, etc. Other boards have no required sequence at all, and you can choose any slot you wish to install your memory. Most new boards support Dual Channel RAM. This is a technology that allows a performance increase when using 2 or 4 matched sticks of RAM. Consult your motherboard manual on which slots to use for dual-channel. It is not always slots 1 & 2.
The installation of module modules is basically the same regardless of type, even though each module type looks a little different.
- Ground yourself by touching an unpainted metal object. This will discharge any built up static electricity in your body.
- Pick up the memory module by its edges.
- Decide which slots you are going to use and orient the memory module over it. The module slot will have a small plastic bridge which will be off-center in the socket. This matches up with a notch in the pin array of the memory module itself and ensures that you insert the module in the proper alignment.
- Insert the memory module. With DIMMs (SDRAM or DDR RAM), they go straight in. Make sure the notches in the RAM line up with the little bumps in the slot.
- Lock the module in place. With DIMMs and RIMMs, all you have to do is continue to press the memory module down until the ejector clips on either side of the memory slot automatically get pushed into the closed position. Sometimes, you may need to help the ejector clips close, but the idea here is that those clips need to close so as to lock the module into place. If they do not close, it is because the module is not inserted all the way into the slot.
- Repeat this procedure for any other memory modules you are going to install.
- If you are using DIMMs (and most are), then you are done. If you are using RIMM modules, then you need to fill each remaining RIMM slot with a continuity module. A continuity module does not contain any actual memory, but its purpose is to simply act as a pass-through circuit so as to provide for a continuous channel for the memory signal. The installation of a C-RIMM is exactly like that of a normal RIMM module.
Step 8: Configure the Motherboard At this point, your have your processor, heat sink and fan and your memory installed onto your motherboard. In most cases you are now ready to install your motherboard into the case. In some cases, however, it is necessary to do a little configuration on your motherboard beforehand. It is easier to do this with the motherboard sitting outside of the case.
The settings that may need to be configured are:
- CPU Speed
- Bus Speed
- CPU Voltage Setting
Most motherboards in use today make use of the CMOS settings to configure these options. In this case, you can skip this step because you will need to wait until your new PC is powered up in order to configure these options. If, though, you are using an older motherboard in which these settings are controlled via the use of jumpers, then we need to tackle this here.
Configuring a Board Which Uses Jumpers
You need to have the manual for your board available. If you do not have the manual, log on to the manufacturer’s web site and see if you can find this info there. You can also try their tech support via phone. In some cases, too, some of the jumper settings are printed onto the surface of the motherboard. If you don’t have any of this info, you are just out of luck. Unfortunately, you must have some form of documentation available simply because motherboards have so many settings to adjust. If you’re dealing with an older board, you may need to spend some time trying to identify the manufacturer so that you can see if they do support it. You can many times use the BIOS ID numbers to identify the board online.
Motherboard manuals come in two main formats. Some are friendly for hardware buffs by listing a separate jumper or DIP switch for CPU core voltage, I/O voltage, multiplier, and system bus speed. They then tell you the settings for each of these. This format is better because of the increased control. Other manuals list the settings next to a list of commonly used CPU’s, showing the common settings for each. While this format is easier for the end user for easy setup, it is tougher if you like increased control of the settings, for overclocking for example. The best manuals do both: list the jumper settings individually as well as provide a list of processors and the jumper settings for each.
When playing with the board, be careful with it. Avoid placing the board on the static bag it came in, as this can cause an electro-static shock to build up, which may very well fry the motherboard. Always place the board on a flat surface, wooden desks work best, not carpet or anything like that. And always ground yourself before handling the board. When handling the board, handle it by the edges only when at all possible.
Now, here is the basic procedure for motherboard configuration:
- Read the Manual. Always. Read the listings for settings and locate all jumpers on the motherboard itself and what settings they control.
- Set the voltage settings. Most older chips use one single voltage. The newer chips we use today use a split voltage. Most of these motherboards provide jumpers for the core voltage and I/O voltage. Set them to match your intended CPU. If you are using an older chip with one voltage, just set both voltages to be the same. Your best bet to choose the correct voltage is to see what is printed on the CPU itself. Most CPUs will have “core voltage” printed somewhere on it. That is your voltage. Some jumpered boards are designed to detect the voltage automatically and then use the correct voltage. In this case, you will not have to worry about it.
- Set the processor speed. This is not usually done with a single jumper. It is, instead, done by setting the system bus speed and a multiplier. The multiplier is the number which when multiplied by the system bus speed gives the processor speed. There is a separate jumper for each of these settings. Configure these to match the intended CPU. If you know what you’re doing and would like to overclock the chip a tad, set these jumpers a little differently. Generally, though, I would recommend actually getting the system working before trying to overclock it. If your manual lists settings by CPU, just do what it says. You can sometimes infer from the manual which switches control voltage, multiplier, etc. Generally, if your board is jumper-controlled, you will need to consult the manual for the proper jumper arrangement, use the motherboard layout in the manual to find the jumper on the board itself, and use either your finger or tweezers to adjust the jumper to look like the diagram in your manual. When the jumpers in question look like they should in the diagrams, then you’re set. And, again, if your CPU settings are NOT jumper-controlled, you will be taking care of all this later on.
Some old boards make use of a jumper to set the cache size and type. Set this now, if need be. If you have internal cache, which most do, you won’t need to bother. Likewise, some boards give you the ability to use either AT or ATX power supplies. Depending on which type you will be using, you may need to set a jumper to tell the board what type of power to use.
If your board supports the asynchronous SDRAM clock speed, as most boards with Via chipsets do, you need to set the jumpers properly for this as well. This capability allows you to run the memory at a different clock speed than the rest of the system. This comes in handy, for example, when you want to use older memory yet run the rest of the system at the higher bus speed. You can set the system bus speed at 100MHz and then set the memory to run at 66MHz or 75MHz, for example. The instructions for properly setting this up are in your board’s manual.
If you’ve done that, most of the configuring is done. Now you want to double-check the other settings that were set by the manufacturer to make sure they are correct. Make sure the CMOS-clear jumper is set to normal so that you can change the BIOS settings later. Make sure the battery jumper is set to onboard battery instead of external battery. If you have a jumper enabling FLASH BIOS, make sure this is disabled. Also, check to see if all jumpers enabling or disabling onboard controllers are set correctly. All these settings are usually set correctly by default, but you need to make sure. Keep in mind that many boards control these feature via their CMOS and you will be setting them after the PC is up and running, not now with jumpers.
Step 9: Install the Motherboard
Now you need to install the motherboard into the case. If you’re following this tutorial, the CPU, fan and memory will already be installed onto the motherboard, so you will be installing this whole setup into the case now.
- Turn your PC case onto its side and move all the power leads from the power supply out of the way so that you have clear access to the motherboard plate. If you are using a case in which the motherboard mounting plate can be removed, you may wish to remove it now and install the motherboard outside of the case itself.
- Locate the holes on the motherboard and the holes on the case or motherboard mounting plate. You might want to hold the board just above the case motherboard plate and see which holes on the case line up with holes on the motherboard. All motherboards have mounting holes in different places.
- Now gather your standoffs. Screw them into the holes in the case or mounting plate that line up with holes on the motherboard. You can tighten them with a 3/16″ nut driver or by hand. Some cases have small spacers that snap into place. With these, you push them through the mounting plate from the back side and they will snap into place.
- For the holes on the motherboard that line up with an eyelet hole on the case (a hole that is very long so that you can slide things in it), install a plastic stand-off on the motherboard. The stand-offs should poke through the motherboard and expand to keep them in place. The little disk on the other end of the stand-off will later be used to slide into the eyelet holes. If your case does not provide eyelet holes, do not worry about this step. Most cases use only the metal standoff screws to hold the motherboard, which is a hell of a lot easier than the slide-in variety.
- Take the motherboard by its edges and hold it over the case. Align it so that it is properly aligned with the rear connectors facing backward, etc.
- Lower the motherboard into the case. Sit it on top of the standoffs you just installed so that each standoff lines up with a screwhole on the motherboard. If you happen to be using any of the slide-in standoffs, you will need to slide these into their eyelet holes as you lower the board into the case.
- Inspect the screws you will use to tighten the board down. If the head of the screws are too wide, and you think they might contact any circuitry on the motherboard, place a plastic washer over each hole. I’ve had some ATX boards refuse to start up later because they were grounded somewhere to the case, probably by a screw.
- Tighten the board down. Install the screws into each of the standoffs underneath, through the board and the washers if you used them. Tighten them down by hand first, then finish them with a screwdriver. Make sure you do not tighten them too much. You don’t want to crack your board. Just make them snug so that the board doesn’t wiggle around in the case. It may be necessary to adjust the position of the board somewhat in order to get the holes aligned enough with the standoffs to tighten down the screws.
- If you were installing the board to a removable mounting plate, install the motherboard mounting plate back into the case. On some cases, the plate is installed from the side. On these, you insert the bottom edge of the plate into a guide rail on the bottom of the case and then rotate upward. The top edge of the plate will contact the case, at which point you can screw it in or a spring loaded handle will lock it in. On other cases, the plate may slide in a different way, from the rear for example. These plates are then easily removed later if you ever need to remove the motherboard.
- Double check your work. Check to be sure that the back of the motherboard is not touching any part of the case or mounting plate. Make sure the slots and connectors line up with the holes on the back of the case. And definitely be sure that the board is rigid and tight. If you press down on the board at any point, it should not bend down.