Service manual

There is no difference between MS62A memory modules and <REFER-
ENCE>(xma2)s as far as interleaving is concerned. The console software
that does the interleaving only recognizes the size difference (number of
Mbytes) of the memory module.
Memory ROM-based diagnostics function with both types of memory
modules. However, since the <REFERENCE>(xma2) has an EEPROM and
the MS62A memory module does not, the RBD does not test the EEPROM
on the <REFERENCE>(xma2). The following <REFERENCE>(xma2)
RBDs will not run on <REFERENCE>(xma2)s installed in Model 200, 300,
or 400 systems.
• SEADR Register Test
• Block State Test
• EEPROM Update Test
Status messages will print on the console terminal stating that the
diagnostic test does not run.
MS65A Memory 6–27