Adding an Optional Memory Card

The first Setup summary screen shows the current amount of memory installed in your system. The Equity 386SX comes with 1MB of on-board memory. (On-board memory is memory that resides on the computer’s main system board.) Setup automatically configures this memory as 640KB of base memory and 384KB of extended memory. If you install even more memory, Setup configures it as extended memory also.

You can add more memory to your computer by installing single inline memory modules (SIMMs) or by installing an optional memory card. Because SIMMs do not require you to use an option slot, they provide a more efficient way to add memory than optional memory cards: You can also add both SIMMs and a memory card.

All memory in your system has a particular address. A memory address is the exact area where the memory resides in the system. If you add memory by installing a memory card, the address of the memory on the card could overlap the address of memory you added by installing SIMMs, or there could be a gap between the two addresses.

Setup displays this error message on the first summary screen if a memory address overlap occurs:

ERROR: Memory overlapping from 100000h to 260000h

Reset Add-on memory board starting at 200000h or 260000h

If there is a gap between the memory addresses, you see this message:

ERROR: Memory gapping from 160000h to 200000h

Reset Add-on memory board starting at 100000h or 160000h

Running the Setup Program

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