iMac "Core 2 Duo" 3.06 with 16GB of PC3-12800s Failed

[h4lp m3]

everymac says this iMac takes 16GB of PC3-8500s.
I installed 4x4gb PC3-12800s and it beeped at me.
However, installing proved to be 4x4gb PC3-10600s was a success.

I was a under the impression that PC3-12800s would clock down to 1067, so I tried it with only 2 modules (8GB) and it ran... But at least once a day, it would Kernel Panic and automatically restart. Swapping the modules, didn't help either. Any ideas why?

 

[tubeexperience]

everymac says this iMac takes 16GB of PC3-8500s.
I installed 4x4gb PC3-12800s and it beeped at me.
However, installing proved to be 4x4gb PC3-10600s was a success.

I was a under the impression that PC3-12800s would clock down to 1067, so I tried it with only 2 modules (8GB) and it ran... But at least once a day, it would Kernel Panic and automatically restart. Swapping the modules, didn't help either. Any ideas why?

...because you bought memory with the wrong speed. That's why.

 

[Samuelsan2001]

everymac says this iMac takes 16GB of PC3-8500s.
I installed 4x4gb PC3-12800s and it beeped at me.
However, installing proved to be 4x4gb PC3-10600s was a success.

I was a under the impression that PC3-12800s would clock down to 1067, so I tried it with only 2 modules (8GB) and it ran... But at least once a day, it would Kernel Panic and automatically restart. Swapping the modules, didn't help either. Any ideas why?

You made an assumption that was wrong, it happens.

 

[maflynn]

Any ideas why?

Wrong ram - return it and get the proper modules, and your problems will disappear