XFX 650I - Manual (Page 27)

Hardware Installation
13
Installing the CPU Fan
There are many different fan types that can be used with this motherboard.
Follow the instruction that came with you fan assembly. Be sure that the fan
orientation is correct for your chassis type and your fan assembly.
Installing Memory DIMMs
Your new motherboard has four 1.8V 240-pin slots for DDR2 memory. These
slots support 256 Mb, 512 Mb and 1 Gb DDR2 technologies for x8 and x16
devices. They also support dual channel DDR2 memory technology up to
10.7GB/s. There must be at least one memory bank populated to ensure
normal operation. Use the following the recommendations for installing
memory. (See Figure 1 on page 9 for the location of the memory slots on the
card)
One DIMM: Install into slot 0. You can install the DIMM into any slot,
however, slot 0 is preferred.
Two DIMMs: Install into either slots 0 and 1 or 2 and 3. The idea is to not
have the DIMMs in adjacent slots.
Four DIMMS: Install into slots 0, 1, 2, and 3.
Use the following procedure to install memory DIMMs into the slots on the
motherboard. Note that there is only one gap near the center of the DIMM slot.
This slot matches the slot on the memory DIMM to ensure the component is
installed properly.
1. Unlock a DIMM slot by pressing the module clips outward.
2. Align the memory module to the DIMM slot, and insert the module
vertically into the DIMM slot. The plastic clips at both sides of the DIMM
slot automatically lock the DIMM into the connector.
DIMM Slot 0
DIMM Slot 2
DIMM Slot 1
DIMM Slot 3
CPU side
Card-edge side