Question Do some RAM brands disagree with each other?

consptheory77

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Jun 24, 2009
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I had 2x4GB stick of Corsair left over from a Dell shell that I utilized for another build, confirmed working, and I decided to put it in my workplace workstation. The office desktop is a Optiplex 7010, my boss bought it around eight years ago, it came with 4GB Crucial, I added another stick of 4GB Hynix three years later. When I went to add the Corsair to bring it up to 16GB, it won't boot. I tried reseating the sticks, with the Corsair in 1 and 3 instead of 2 and 4, same effect. If I take the Corsair out, and leave in the original sticks, it boots fine. If I take out the original sticks, and leave in the Corsair, it boots fine. But why would there be an issue?
 

consptheory77

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Jun 24, 2009
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As it turns out, it had nothing to do with that. I tried new RAM, all the same brand, had the same problem. So obviously there was a software problem, the OS was not recognizing the RAM. I googled the issue, saw to go to the advanced boot menu of msconfig, and unclick "maximum memory" which I did and upon reboot, the system recognized all the RAM. I am still unclear as to why Windows would even have that as an option, though.
 

egda23

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As it turns out, it had nothing to do with that. I tried new RAM, all the same brand, had the same problem. So obviously there was a software problem, the OS was not recognizing the RAM. I googled the issue, saw to go to the advanced boot menu of msconfig, and unclick "maximum memory" which I did and upon reboot, the system recognized all the RAM. I am still unclear as to why Windows would even have that as an option, though.
The only reason I can think of, is if you are working in a programing environment it allows you to test the behavior of your program in machines with various amounts of RAM
 
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