Lenovo Storage N3310 (English) User Guide and Hardware Maintenance Manual - Le - Page 64

The following table explains the memory module installation order for storage products that have only

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Table 1. Memory module installation rules for storage products with one microprocessor CPU1 DIMM A1 A2 B1 B2 C1 C2 D1 D2 1 DIMM X 2 DIMMs X X 4 DIMMs X X X X 8 DIMMs X X X X X X X X The following table provides information about the memory module installation rules for storage products that have two microprocessors (CPU1 and CPU2) installed. The "X" mark indicates the memory slots into which the memory modules should be installed in different situations. Table 2. Memory module installation rules for storage products with two microprocessors CPU1 DIMM CPU2 DIMM A1 A2 B1 B2 C1 C2 D1 D2 A1 A2 B1 B2 C1 C2 D1 D2 2 DIMMs X X 4 DIMMs X X X X 8 DIMMs X X X X X X X X 16 DIMMs X X XXXXXXXX X XXX X X The following section explains the memory module installation rules in independent mode, mirroring mode, sparing mode, and lockstep mode. Memory module installation order in independent mode In independent mode, the RAS features are not available. For more information about the RAS features, refer to the related section in "Features" on page 7. Notes: • All memory modules to be installed must be the same type. • When you install memory modules with different capacity, install the memory module that has the highest capacity first. The following table explains the memory module installation order for storage products that have only one microprocessor (CPU1) installed. Table 3. Memory module installation order in independent mode for storage products with one microprocessor CPU1 DIMM A1 A2 B1 B2 C1 C2 D1 D2 DIMM installation order 1 5 2 6 3 7 4 8 The following table explains the memory module installation order for storage products that have two microprocessors (CPU1 and CPU2) installed. Table 4. Memory module installation order in independent mode for storage products with two microprocessors CPU1 DIMM CPU2 DIMM A1 A2 B1 B2 C1 C2 D1 D2 A1 A2 B1 B2 C1 C2 D1 D2 DIMM installation order 1 9 3 11 5 13 7 15 2 10 4 12 6 14 8 16 50 Lenovo Storage N3310 User Guide and Hardware Maintenance Manual

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Table1.Memorymoduleinstallationrulesforstorageproductswithonemicroprocessor
CPU1 DIMM
A1
A2
B1
B2
C1
C2
D1
D2
1 DIMM
X
2 DIMMs
X
X
4 DIMMs
X
X
X
X
8 DIMMs
X
X
X
X
X
X
X
X
Thefollowingtableprovidesinformationaboutthememorymoduleinstallationrulesforstorageproducts
that have two microprocessors (CPU1 and CPU2) installed. The “X” mark indicates the memory slots into
which the memory modules should be installed in different situations.
Table2.Memorymoduleinstallationrulesforstorageproductswithtwomicroprocessors
CPU1 DIMM
CPU2 DIMM
A1
A2
B1
B2
C1
C2
D1
D2
A1
A2
B1
B2
C1
C2
D1
D2
2 DIMMs
X
X
4 DIMMs
X
X
X
X
8 DIMMs
X
X
X
X
X
X
X
X
16DIMMs
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Thefollowingsectionexplainsthememorymoduleinstallationrulesinindependentmode,mirroringmode,
sparing mode, and lockstep mode.
Memory module installation order in independent mode
In independent mode, the RAS features are not available. For more information about the RAS features,
refer to the related section in “Features” on page 7.
Notes:
• All memory modules to be installed must be the same type.
• When you install memory modules with different capacity, install the memory module that has the
highest capacity first.
The following table explains the memory module installation order for storage products that have only
one microprocessor (CPU1) installed.
Table3.Memorymoduleinstallationorderinindependentmodeforstorageproductswithonemicroprocessor
CPU1 DIMM
A1
A2
B1
B2
C1
C2
D1
D2
DIMMinstallationorder
1
5
2
6
3
7
4
8
The following table explains the memory module installation order for storage products that have two
microprocessors (CPU1 and CPU2) installed.
Table4.Memorymoduleinstallationorderinindependentmodeforstorageproductswithtwomicroprocessors
CPU1 DIMM
CPU2 DIMM
A1 A2 B1 B2 C1 C2 D1 D2 A1 A2 B1 B2 C1 C2 D1 D2
DIMMinstallationorder
1
9
3
11
5
13
7
15
2
10
4
12
6
14
8
16
50
Lenovo Storage N3310 User Guide and Hardware Maintenance Manual