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| Warning | Only authorized service personnel should upgrade the system. Anyone who wants to upgrade the system herself/himself should know about the dangers of ESD (Electro-Static Discharge) and the necessary precautions. Unknowingly zapping the components of the computer will void the warranty. |
Note |
| There are 3 variations of motherboard for this system, each one with different memory configurations. |
| Motherboard A |
| System with 1Mb surface mount DRAMs and 4 SIMM sockets. (Ver. B.2) (Supports 256Kb and 1MB 80ns SIMMs). This motherboard has a 16 MHz CPU. Manual shipped with this system: 386 SX-iies |
Motherboard B |
| System without surface mount DRAMs and 4 SIMM sockets. (Ver. B.2) (Supports 256kb, 1Mb, and 4Mb 80ns SIMMs).this system has a 20 MHz CPU. Manual shipped with this system: 386 SX-iie |
Motherboard C |
| System with 2Mb surface mount DRAMs and 2 SIMM sockets. (Ver. C.1) (Supports 1mb 80ns SIMMs only). This motherboard can have a 20 or 25 MHz CPU. Manual shipped with this system: 386 SX-iies |