my motherboard has 4 ram slots two at the same Color and the other two at different Color?

Your motherboard supports dual channel RAM which means there are two RAM pipelines to the processor to try and help the bottleneck caused by the system bus.

If you have one stick (module) of RAM it runs in single channel mode.

To get dual channel to work you have to have a matched pair of RAM you intend to use, like if you bought 2 sticks of 256 or 512, make sure they are the same brand and spec. Install both in the same color slot, like if you put one in the blue slot, put the other in the blue slot. This will make the dual channel activate.

If you mix it (one black, the other blue), it will still run just not in dual channel mode.

If you decide to add more RAM you will need another identical pair of RAM to go in the two open slots, if you only add one more, it will see the RAM but you're back to single channel mode.

It is very important to have the exact same chip in both slots of the same color!

The advantage is: with two identical sticks of RAM the motherboard activates dual channel, if they are not identical the system can not adjust for voltage and other differences that are caused by RAM of different specs.

Motherboard With 4 Ram Slots

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what motherboard do you have? RAM performs best at dual channel and that means put a stick in slot #1 and slot #3 these two slots will be of the same color while slot #2 and slot #4 will be of the same color

its for the ram to work in pairs

1 and 3 are a pair 2 and 4 are another pair,this is the norm

if you have 1 and 2 black plus 3 and 4 red

they are are for 2 different types of ram

Try a drastic solution. Look in your user manual. If you don't have a physical booklet, it is probably on your computer's disk. If it is on your computer disk, either print it out, or if you have another device that can either read a DVD-r or a Flash card you can keep it there. If you only have one system, print it out.

You do not want to fid yourself with a computer that does not work and the information you need to fix it on the very computer that is broken, and consequently unavailable.

If you cannot find the information on the computer, it is probably on the manufacturer's web site. Download it and make a hard copy locally. (an inexpensive flash card reader/writer is about $8 and a 2GB SC card will also run about $8. There is no excuse for not having a backup copy of your manual. If you are stuck with only one computer (?) and no printer, put the relevant manual on a DVD-R or flash card and get it printed out at a local office supply or copy store.

Once again. make sure that you have access to that information when that computer is not functioning.

If you need to ask Yahoo Answers how to fix your computer when it is broken you will have to access us with a second computer. You will need to provide the manufacturer and the model number, and it would be a good idea to provide the serial number in case the manufacturer made a motherboard change mid-model. That is the same information that someone would need to answer your present case.

It would be good practice for you to use your current question in order to see if you can find your user manual, which I am sure will have the information you are looking to find.

No

It just say that if you want to use 2 Ram you should put them in the slot with same color .