TYAN THUNDER K8QE Manual page 29

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Bank Interleave – This form of interleaving causes the memory controller to
group two 128-bit DIMM banks into one large array. Every other 128-bit word
is stored in a given DIMM bank. Even word addresses are stored in the bank
composed of slots DIMM0 and DIMM1. Odd word addresses are stored in the
bank composed of slots DIMM2 and DIMM3. If enabled in BIOS setup, each
node with four identical DIMM's is setup to use bank interleave.
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Node Interleave – Node based interleaving causes the system to group even
numbers of nodes into one large array. In the case of two-way node
interleaving (2 processors present), every other 128-bit word is stored on a
given node. Four-way node interleaving (four processors present) results in
th
every 4 128-bit word being stored on a given node. Node interleave is not
compatible with Microsoft's SRAT table or Linux NUMA. If enabled in BIOS
setup and if all loaded nodes have the same amount of memory.
Rules for populating memory :
64-bit support: Choose DIMM slots 0 or 2 by themselves or use 0 and 2 together for
every CPU socket that corresponds to those DIMM slots.
128-bit support: Choose DIMM slots 0 and 1 or 2 and 3 or all 4 together for every CPU
socket that corresponds to those DIMM slots.
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
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
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Bank
Interleave
Bank 0, low 64,
even
Bank 0, high 64,
even
Bank 0, low 64,
odd
Bank 0, high 64,
odd