User`s guide

Serverboard Manual
12
Hardware
Install
IMPORTANT
*
The Opteron features a 128-bit wide DDR memory interface. To take advantage
of the 128-bit interface, you must install DIMMs in pairs of two (2). DIMM slots
0 and 1 are paired, and slots 2 and 3 are paired. If you are only installing two
DIMMS into a Memory Bank, it is recommended that you install them in slots 0
and 1 to get the full bandwidth. (This is True for the H1 DIMM bank as well.)
* Remember to populate the H0 DIMM bank with at least 2 DIMMs (for CPU0)
before inserting memory modules in the H1 DIMM bank (for CPU1).
80 pins 104 pins
2. Make sure the DIMM’s pins are facing down, and check that the pin
arrangement on the memory module resembles the one pictured below.
3. Insert the module into the DIMM socket and press down evenly on both ends
firmly until the DIMM module is securely in place. (The tabs of the DIMM socket
will close-up to hold the DIMM in place when the DIMM is properly installed on
the socket’s bottom.)
4. Repeat step 1 to step 3 for all additional DIMM modules.
Installing Memory continued...
Notch
Notch
The notch
hole should
line up with
the notch on
the slot
Release Tab
Release Tab
DIMM Slot 0
DIMM Slot 1