Supermicro X7DBE-X Datasheet download pdf (Page 26)

2-6

X7DB8-X/X7DBE-X User's Manual

2-3 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 DIMM

#1A. The memory scheme is interleaved so you must install two modules

at a time, beginning with DIMM #1A, then DIMM #2A and so on. (*See the

Memory Installation Table Below.)

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 X7DB8-X/X7DBE-X supports up to 16 GB (32 GB) fully buffered (FBD) ECC

DDR2 667/533 in 8 DIMMs. Populating DIMM modules with pairs of memory

modules of the same size and same type will result in Interleaved Memory which

will increase memory performance.

*Note 1: Due to OS limitations, some operating systems may not show more than

4 GB of memory.

*Note 2: Due to memory allocation to system devices, memory remaining avail-

able for operational use will be reduced when 4 GB of RAM is used. The reduction

in memory availability is disproportional. (Refer to the following Memory Availability

Table for details.

Optimized DIMM Population Configurations

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. Both FBD 533 MHz and 667MHz DIMMs are supported; however,

you need to use the memory modules of the same speed and of the same type on a

motherboard. iii. Interleaved memory is supported when pairs of DIMM modules are

installed. To optimize memory performance, please install pairs of DIMMs in both

Branch 0 and Branch 1

. iv. For memory to work properly, you need to follow the

restrictions listed above. )

1 2 ... 21 22 23 24 25 26 27 28 29 30 31 ... 129 130

Comments to this Manuals

No comments

Supermicro X7DBE-X Datasheet Page 26

Comments to this Manuals

Related products and manuals for Motherboards Supermicro X7DBE-X