Arbor Technology Rigid-770 Series, Руководство пользователя

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Installation & Maintenance
4.1.2. Install/uninstall Memory Modules
The main board has two dual inline memory module (DIMM) sockets. Increase
memory capacity to make programs run faster on the system. The memory
module for the computer's SO-DIMM sockets should be a 204-pin DDR3 with a
“key notch” off the centre among the pins, which enables the memory module
for particular applications. There are another two notches at each left and right
side of the memory module to help fix the module in the socket.
key notch
side notch
side notch
To install a DDR3 memory module:
1. Remove the top cover from the computer as described in 4.1.1.1. Remove
Top Cover on page 46 .
2. Find the SO-DIMM sockets on the board as marked in the illustration
below.
The SO-DIMM sockets are vertical type, and each socket has two
latches for fixing the memory modules. The memory module can only be
installed by one direction due to the key notch.