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2: Key Features & Components
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User’s Manual 2•5
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mPGA478B Socket:
This socket is for 478-pin
Pentium 4 CPUs only.
Heatsink/fan assembly
mounting frame
ALi ALADDiN-P4 Chipset
This motherboard uses the ALADDiN-P4 chipset from
Acer Laboratories. It is a multi-function chipset for higher-
end performance and mainstream systems. The compo-
nents of the ALADDiN-P4 chipset include the following
devices mounted on the board:
• M1671 North Bridge
• South Bridge
The chipset provides host bus, memory, AGP, and I/O
interfaces with a 400MHz Front Side Bus.
CPU Socket
Function: The system CPU installs in this socket.
Description: The mPGA478B CPU socket supports all 478-
pin Intel Pentium 4 CPUs that use this socket. The
motherboard comes with a mounting frame mounted on
the board to attach the heatsink and cooling fan assem-
bly required by the Pentium 4 CPU.
More Information: See the section in Chapter 4 on “In-
stalling CPUs” for information supported CPUs and their
installation procedure. Technical specifications are listed
in Chapter 7.
mPGA478B
CPU