Upgrades 5400/5500 DIMM Upgrade - 7

EDO-Compatible Logic Board Identification

Before you install extended data out (EDO) memory in a
Performa or Power Macintosh 5400 computer, you must
verify that the logic board is EDO-compatible.
There are four ways to verify that a logic board from a
Performa or Power Macintosh 5400 computer is
compatible with EDO memory:
• The logic board has soldered-on EDO DRAM
• The logic board has a resistor present at chip U34
• The logic board has

no

resistor present at location R77
The details for identifying an EDO-compatible logic board by
these methods are presented in the following sections.