TYAN M4881 Manual page 21

Refer to the diagram below if there are further questions on how to populate
memory in 64-bit, 128-bit orientations or Bank Interleaving:
DIMM Number
DIMM0
DIMM1
DIMM2
DIMM3
Memory Installation Procedure
When you install the memory modules, make sure the module aligns properly with the
memory slot. The modules are keyed to ensure that it is inserted only one way. The
method of installing memory modules are detailed by the following diagrams.
Once the memory modules are firmly seated in the slot, two latches on either side will
close and secure the module into the slot. Sometimes you may need to close the
latches yourself.
To remove the memory module, simply push the latches outwards until the memory
module pops up. Then remove the module.
YOU MUST ALWAYS unplug the power connector from the
NOTE motherboard before performing system hardware changes.
Otherwise you may damage the board and/or expansion device.
64-Bit Width
Bank 0
Not Used
Bank 1
Not Used
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128-Bit Width
Bank 0, low 64
Bank 0, high 64
Bank 1, low 64
Bank 1, high 64
21
Bank Interleave
Bank 0, low 64,
even
Bank 0, high 64,
even
Bank 0, low 64,
odd
Bank 0, high 64,
odd