Abit Intel Pentium 4 System Board Socket 775 AW8 - Manual (Page 13)

Hardware Setup 2-5
• [Dual Channel Asymmetric]: both channels are populated, but each channel has a different
amount of total memory. (Channel A≠Channel B)
Channel A Channel B
Method
DIMM1 DIMM2 DIMM3 DIMM4
1 512MB - 256MB -
2 - 256MB - 512MB
3 512MB - - 256MB
4 - 256MB 512MB -
5 256MB 256MB 256MB -
6 256MB 256MB - 256MB
7 256MB - 256MB 256MB
8 - 256MB 256MB 256MB
9 256MB 256MB 512MB 512MB
10 256MB 256MB 256MB 512MB
• [Dual Channel Symmetric]: both channels are populated where each channel has the same amount
of total memory. (Channel A＝Channel B)
Channel A Channel B
Method
DIMM1 DIMM2 DIMM3 DIMM4
1 512MB - 512MB -
2 - 512MB - 512MB
3 512MB - - 512MB
4 - 512MB 512MB -
5 256MB 256MB 512MB -
6 256MB 256MB - 512MB
7 512MB - 256MB 256MB
8 - 512MB 256MB 256MB
9 512MB 256MB 512MB 256MB
10 256MB 512MB 256MB 512MB
Power off the computer and unplug the AC power cord before installing or removing memory modules.
1. Locate the DIMM slot on the board.
2. Hold two edges of the DIMM module
carefully, keep away of touching its
connectors.
3. Align the notch key on the module with the
rib on the slot.
4. Firmly press the module into the slots until
the ejector tabs at both sides of the slot
automatically snaps into the mounting notch. Do not force the DIMM module in with extra force as
the DIMM module only fit in one direction.
5. To remove the DIMM modules, push the two ejector tabs on the slot outward simultaneously, and
then pull out the DIMM module.
ATTENTION: Static electricity can damage the electronic components of the computer or optional
boards. Before starting these procedures, ensure that you are discharged of static electricity by touching a
grounded metal object briefly.
User’s Manual