NCR 7458 - Manual (Page 55)

Chapter 3: Hardware Service 3-31
Installing Memory Modules
The 7458 contains two DIMM sockets.
To install the DIMM, follow these steps:
1. Slide the Electronics Tray out of the terminal cabinet and locate the
DIMM socket.
2. Open the latches at the ends of one of the sockets.
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Note: The DIMM can be installed into either DIMM socket.
3. Align the DIMM in the socket and push it straight down (Note that
the DIMM connector is keyed).
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4. Ensure that the edges of the DIMM engage the latches and that the
latches are completely closed.
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