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What kind of mainboard are you talking about ? &nbsp;what cpu do you have : 386 / 486 / pentium ?<br />
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Do you mean with dram the small 16 pin black chips that are on the mainboard (mostly in rown of 9 pieces) ?<br />
And what kind of modules do you use ? &nbsp;The 31pin of the 72pin version ? Or even the latest DIMM versions ?<br />
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There are many different types of mainboards. &nbsp;The more recent versions can support both DIMM and 72p SIMM modules. &nbsp;These can not always be mixed because of power supply voltage conflicts (3.3V / 5V) &nbsp;In such a case it is possible that you destroy memory modules.<br />
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What kind of mainboard are you talking about ?  what cpu do you have : 386 / 486 / pentium ?

Do you mean with dram the small 16 pin black chips that are on the mainboard (mostly in rown of 9 pieces) ?
And what kind of modules do you use ?  The 31pin of the 72pin version ? Or even the latest DIMM versions ?

There are many different types of mainboards.  The more recent versions can support both DIMM and 72p SIMM modules.  These can not always be mixed because of power supply voltage conflicts (3.3V / 5V)  In such a case it is possible that you destroy memory modules.




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Here is the Url I posted for you to look at, including the sdram table listing the different memory types.<br />
<a href="http://www.asus.com.tw/Products/Techref/Memory/Dram/dimmsimm.html" rel="ugc">http://www.asus.com.tw/Products/Techref/Memory/Dram/dimmsimm.html</a><br />

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Here is the Url I posted for you to look at, including the sdram table listing the different memory types.
http://www.asus.com.tw/Products/Techref/Memory/Dram/dimmsimm.html [http://www.asus.com.tw/Products/Techref/Memory/Dram/dimmsimm.html]


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My manual for my motherboard says it does not recommend the use of both DRAM and SIMM memory type AT THE SAME TIME. Can someone explain to me what may or will happen if I try to use both at the same time anyway? I always thought this was OK to do. 
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My manual for my motherboard says it does not recommend the use of both DRAM and SIMM memory type AT THE SAME TIME. Can someone explain to me what may or will happen if I try to use both at the same time anyway? I always thought this was OK to do. 

Different types of memory

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Components are those devices that are internal to a computer -- the PC boards, the central processor (CPU), the memory (RAM), disk and video controllers and so on.