Internal Use Only
Why do some PowerMacs need to use 8x8 chips on 64MB and 128MB modules?
We've encountered many intermittent problems in the field when users install 64
or 128MB modules based on 4x4 (16Mb Technology). Since we have'nt been able to
duplicate the problem with our test equipment, we've had to make some educated
guesses based our knowledge and experience with Apple.
- The large quantity of DRAM chips exceeds the capacitance loading
specification.
- The large quantity of DRAM chips exceeds the 'Power Budget' of the memory
bus.
Other 3rd party memory manufacturers claim to have no similar problems. We've
not seen very many ourselves. We believe our competitors will encounter the
problem sooner or later. Ours became most noticable when a couple customers
installed large memory configurations (256MB and 512MB) in multiple systems
fresh from the factory, simultaneously.
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Copyright (©) 1997 Advantage Memory Corp.