3000 HD  (250-4010/4011)            Settings           Faxback Doc. # 1382

#Discrete Version Main Logic Board:

Monitor Type:

E2-E3     Selects monochrome video option (standard).
E3-E4     Selects color video option.

Memory Size:

E13-E14   Removed selects 512K onboard memory (standard).
E13-E14   Installed selects 640K onboard memory.

ROM Size:

E5-E9     Selects 27128 type ROM  (standard).
E7-E11    Selects 27128 type ROM  (standard).
E6-E10    Selects 27256 type ROM  (do not use).
E8-E12    Selects 27256 type ROM  (do not use).

#Gate-Array Main Logic Board:

Monitor Type:

E4-E5    Selects color video option.
E5-E6    Selects monochrome video option (standard).

Memory Size:

E7-E8     E9-E10      RAM.

OFF        ON         512K
ON         OFF        640K
OFF        OFF        1MEG

ROM Size:

E11-E15 & E13-E17     Selects 16K ROM (standard).
E12-E16 & E14-E18     Selects 32K ROM (do not use).

# The Gate-Array Main logic Board can be easily identified by the five
large square Chips and Technologies chips.  The have "CHIPS" printed
boldly on the top of each chip.