zotan Posted January 17, 2006 Share Posted January 17, 2006 I decided to buy another 512mb of RAM the other day and am now having problems installing it. I currently have two sticks of VS512MB400. My motherboard is an ASUS A8N-E. When I try to put in the third stick, it wont boot. Ive tried booting with the new RAM by itself and it works fine. Ive also tried using one old stick and the new one and it still works fine. When I try to use all three, it doesn't boot. Any suggestions? Thanks, Matt Link to comment Share on other sites More sharing options...
RJLeong65 Posted January 17, 2006 Share Posted January 17, 2006 I decided to buy another 512mb of RAM the other day and am now having problems installing it. I currently have two sticks of VS512MB400. My motherboard is an ASUS A8N-E. When I try to put in the third stick, it wont boot. Ive tried booting with the new RAM by itself and it works fine. Ive also tried using one old stick and the new one and it still works fine. When I try to use all three, it doesn't boot. Any suggestions? Thanks, Matt Your motherboard and/or CPU is not designed to be used with three sticks of memory. Remember, your A8N-E motherboard actually has four memory slots, and is set up to run in dual-channel mode with two or four sticks installed. Trying to operate your system with only three of the four memory slots filled will put too much of a strain on the memory controller (it became indecisive as to whether to use dual-channel or single-channel mode due to the unevenly loaded channels), causing your system to refuse to POST. (Asus, and all other motherboard makers, provide absolutely no way at all whatsoever to manually disable dual-channel memory operation.) As a general rule, dual-channel motherboards with four DIMM slots can be used with one stick, two sticks or four sticks - but NEVER three sticks. Link to comment Share on other sites More sharing options...
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