According to Tim Rightnour:
>
>Are all your bios refresh rates staying the same? Some bioses like to 
>auto-reprogram your timings when you add memory.
>

The other thing to check is that all the memory is being cached.  On
some bios'es you need to tell it to cache memory regions.

-- 
Brett Lymn, Computer Systems Administrator, AWA Defence Industries
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  "Upgrading your memory gives you MORE RAM!" - ad in MacWAREHOUSE catalogue.