TYAN Triumph i7520 (S6623 Manual page 27

Refer to the following table for supported DDR2 populations.
DIMM
Configuration
1 Single Rank
1 Single Rank
2 Single Rank
2 Single Rank
2 Single Rank
4 Single Rank
1 Dual Rank
1 Dual Rank
2 Dual Rank
2 Dual Rank
2 Dual Rank
4 Dual Rank
1 Dual Rank,
1 Single Rank
1 Dual Rank,
1 Single Rank
2 Dual Rank,
2 Single Rank
DIMM 4
Empty Empty
Empty Empty
Empty Empty
Empty Single Rank
Single Rank Empty
Single Rank Single Rank
Empty Empty
Empty Empty
Empty Empty
Empty Dual Rank
Dual Rank Empty
Dual Rank Dual Rank
Empty Single Rank
Single Rank Empty
Single Rank Single Rank
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DIMM 3 DIMM 2
Empty
Single Rank
Single Rank
Empty
Single Rank
Single Rank
Empty
Dual Rank
Dual Rank
Empty
Dual Rank
Dual Rank
Empty
Dual Rank
Dual Rank
27
DIMM 1
Single Rank
Empty
Single Rank
Single Rank
Empty
Single Rank
Dual Rank
Empty
Dual Rank
Dual Rank
Empty
Dual Rank
Dual Rank
Empty
Dual Rank