Chapter 2
Product Overview
MightyBoard 821
Reference Manual
7
Block Diagram
Figure 2-2
shows the functional components of the MightyBoard 821.
Figure 2-2. Functional Block Diagram
Major Components (ICs)
Table 2-1
lists the major integrated circuits (chips), including a brief description of each, on the
MightyBoard 821 and
Figure 2-3
shows the location of the major chips.
MB821Blkdi
a
gm_b
Intel
Pentium M
or Celeron M
CPU
DDR2
SODIMM
Memory Bus
M
a
gneti
c
s-
RJ45
Keybo
a
rd/
Mouse
SMBus
PCIe Bus
Conne
c
tor
PCIe
x
16 Bus
PCIe
x
1 Bus
IrDA 1.1
P
a
r
a
llel
AC’97
CODEC
COM3
COM4
USB Port 2
USB Port 1
USB Port 0
USB 2.0
Super I/O
W83627HF
COM1
COM2
AC’97 Link
Clo
c
k
Temp
512kB
ROM
BIOS
Ethernet
Controller(2)
82573V
CRT VGA
LVDS LCD
M
a
gneti
c
s-
RJ45
GPIO (User Defined)
Memory Hub
82915GM
(Northbridge)
I/O Hub
82801FB
(Southbridge)
SATA
IDE
PATA
SATA
IDE Devi
c
es,
(HDDs,
)
CD-ROM, et
c
.
RS232/RS422/RS485
LPC Bus
LPC I/O
(Se
c
ond
a
ry)
F81216D
CPU F
a
n
USB Port 3
USB Port 4
USB Port 5
