![background image](http://html.mh-extra.com/html/ibase-technology/mb820/mb820_user-manual_604992019.webp)
INSTALLATIONS
MB820 User’s Manual
15
ATXP1: ATX Power Supply Connector
ATXP1 is a 20-pin ATX power supply connector. Refer to the following
table for the pin out assignments.
Signal Name
Pin #
Pin #
Signal Name
3.3V 11
1 3.3V
-12V 12
2 3.3V
Ground 13
3 Ground
PS-ON 14
4 +5V
Ground 15
5 Ground
Ground 16
6 +5V
Ground 17
7 Ground
-5V 18
8
Power
good
+5V 19
9 5VSB
+5V 20
10 +12V
11 1
20 10
ATXP2: ATX 12V Power Connector
Pin #
Signal Name
1 Ground
2 Ground
3 +12V
4
+12V
DIMM1, DIMM2: DDR Channel A Connectors
DIMM1 and DIMM2 are the first DDR channel connectors that must be
use together at one time in order for the system to function properly.
DIMM3, DIMM4: DDR Channel B Connectors
DIMM3 and DIMM4 are the second DDR channel connectors that must
be use together at one time in order for the system to function properly.
AGP1: AGP Slot
PCI1, PCI2, PCI3, PCI4: PCI Slots
SL1, SL2: ISA Slots