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Memory my pc doesnt recognise all of its ram.


Answers :

If the memory you added does not match the current memory in the system you will not see the correct size. Use you're manual to find the correct memory needed to function in you're system. The manual will explain what size, (MB), speed=MHz. single sided or double sided DIMM's Voltage needed & what slots the DIMM's need to be inserted into. A motherboard with two DIMM slots for memory may require both slots use the same size of memory. All this information should be listed in the manual. Another example of memory not showing the total amount of memory. My board can run 4GB of memory. (This is what I’m running). Watching the boot up screen I can see the total memory is listed correctly but when I go into device manager at the general screen. Windows only reports 3GB of memory. As a tech I know this is correct because windows is using 1GB to run other memory intense systems. Allot of boards do the same. One can feel cheated. You're system may be doing the same thing.
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\015\012Mike
You didn't give any details, but here is an answer to a common misunderstanding:

http://support.dell.com/support/topics/global.aspx/support/dsn/en/document?c=us&dl=false&l=en&s=gen&docid=BF4C8393BFC74A83B9EC318630B9CE7D&doclang=en&cs=

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