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* [[Dk'tronics_memory_expansion|DK'tronics 64K RAM pack Memory Expansion]] (removable RAM chips) >> upgraded to [[Media:Upgraded64kRAM.JPG|256K]] - [[Upgrading_a_Dk%27tronics_RAM_Expansion|instructions]]
* [[Rombo_Rombox|Rombo ROMBOX]] with following ROMS from RAM pack pass-through connector ('''OPTIONAL!! ''' But it makes computing much easier)<BR>
:* Slot 1: [[Utopia]] - General purpose utilities
:* Slot 2: [[BCPL]] - Compiler from PJB & Arnor Ltd.
:* Slot 3: [[Maxam]] - Assembler from Arnor Ltd.
:* Slot 4: [[Protext]] - Word processor from Arnor Ltd.
:* '''***''' Slot 5: or [[ParaDOS]] as well - only, if '''ONLY!!''' '''***''' If you choose to leave the AMSDOS ROM chip inside the disc interface * [[Amstrad_Disk_Drive|Amstrad DDI-1 External 3" Disc Drive]] with Disc interface (a choice of either replaced with ParaDOS ROM - '''recommended ''' to do it for [[464Plus_Conversion#Jonathanen.27s_Easy_Way_To_464.2B_Conversion|upgraded CPC 464+ to 6128+ spec ]] or leave the AMSDOS ROM inside the disc interface - for using DR. LOGO on upgraded CPC 464 to 6128 spec, '''NOT''' [[464Plus_Conversion#Jonathanen.27s_Easy_Way_To_464.2B_Conversion|upgraded 464+]]) from the pass-through connector on the ROMBOX
* 3.5” External disc drive with external power supply, [[Side Select Switch|side switch]], [[Adding_3.5"_drive_to_CPC464#3.5.22_READY_Signal_Test|"READY" signal]] and a drive lead with 34 way IDC Male connector (34 pins sticking out) to the back of DDI-1 disc interface and place this disc drive on top of DDI-1 external disc drive - if you not sure how to, then follow "[http://www.cpcwiki.eu/index.php/Adding_3.5%22_drive_to_CPC464 Adding 3.5" Disc Drive 'B' - For CPC 464 Series with DDI-1 only!!]" instructions.<BR>