Supermicro X7DWA-N User Manual download pdf (Page 26)

2-6

X7DWA-N User's Manual

2-4 Installing DIMMs

Note: Check the Supermicro web site for recommended memory modules.

CAUTION

Exercise extreme care when installing or removing DIMM

modules to prevent any possible damage. Also Note that the

memory is interleaved to improve performance (see step 1).

DIMM Installation (See Figure 2-2)

1. Insert the desired number of DIMMs into the memory slots, starting with Bank

1. (Refer to the Memory Conﬁ guration Table below for more details.)

2. Insert each DIMM module vertically into its slot. Pay attention to the notch along

the bottom of the module to prevent inserting the DIMM module incorrectly.

3. Gently press down on the DIMM module until it snaps into place in the slot.

Repeat for all modules (see step 1 above).

Memory Support

The X7DWA-N supports up to 64 GB fully buffered (FBD) ECC DDR2 800/667/533

in 8 DIMMs. Populating DIMM modules with a pair (or pairs) of memory modules

of the same type and same size will result in interleaved memory. For best per-

formance, please install (a) pair(s) of DIMM modules of the same type in both

Branch 0 and Branch 1.

Note 1: Different types of memory modules are supported by processors with dif-

ferent front side bus speeds. Refer to the Memory Support Table below.

Memory Configuration Table

Branch0 Branch1

Number of

DIMMs

Bank 1

(Channel 0)

Bank 2

(Channel 1)

Bank 3

(Channel 2)

Bank 4

(Channel 3)

2 DIMMs 1A ------ 2A ------ ------ ------ ------ ------

4 DIMMs 1A ------ 2A ------ 3A ------ 4A ------

6 DIMMs 1A 1B 2A 2B 3A ------ 4A ------

8 DIMMs 1A 1B 2A 2B 3A 3B 4A 4B

(*Notes: i. DIMM slot# specified: DIMM slot to be populated; “---“: DIMM slot not to

be populated. ii. FBD 533 MHz, 667MHz and 800 MHz DIMMs are supported;

however, we recommend that you use the memory modules of the same speed and

of the same type on a motherboard. iii. For memory to work properly, you need to

follow the restrictions listed above. )

DIMM Modules Supported by CPUs

CPU

DIMM

FSB:

1600 MHz

FSB:

1333 MHz

FSB:

1066 MHz

800 MHz Supported Supported (Note2) Supported (Note2)

667 MHz Supported Supported Supported

533 MHz Not Supported Supported Supported

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 94 95

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Supermicro X7DWA-N User Manual Page 26

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