Hiya all.

Just got a 520 greyscale with a 100mhz upgrade card and 16mb ram card.  I
tried transplanting the ppc chip into a 520c with a 32mb ram card.  The 520
was running 7.5.2 or 3 (can't recall off hand).  The 520c is running 8.1.
Once I seated the ppc chip, upon boot the cpu stops boot halfway through and
says there is a memory problem.  I rechecked and the 32mg ram chip indeed
runs fine with the 25 and 33mhz stock chips in all my 4 500 series units,
but paired with the 100mhz unit--no go.  If I slip the 100mhz unit back into
the greyscale 520 it will work with the 16mb chip, but not with the 32.

Any ideas as to what gives?  Does this card need a special driver I do not
have?  A special install?  Did the board gas out?  I'm stumped.  Any help
would be appreciated.

MD


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