SUPER MICRO Computer AS1020S-8 - Manual (Page 55)

Chapter 5: Advanced Serverboard Setup
5-21
I 2 C to PCI Enable/Disable
JI 2 C1/2 pair of jumpers allow you to
connect the System Management Bus
to any one of the PCI slots. The default
setting is closed for both jumpers to en-
able the connection. Both connectors
must have the same setting (JI 2 C1 is
for data and JI 2 C2 is for the clock). See
the table on right for jumper settings.
I 2 C to PCI Enable/Disable
Jumper Settings
(JI 2 C1/JI 2 C2)
Jumper Setting Defi nition
Closed Enabled
Open Disabled
5-11 Onboard Indicators
JLAN1/JLAN2 LEDs
The Ethernet ports (located beside
the VGA port) have two LEDs. On
each Gb LAN port, the right (yellow)
LED indicates activity while the left
(orange) LED indicates when there is
a connection (link). See the table on
the right for the functions associated
with the left (connection) LED.
JLAN Left LED
(Connection Indicator)
LED Color Defi nition
Off No Connection
Orange Connection
+3.3V Power LED
When illuminated, the DP1 LED
indicates that power from the pow-
er supply is being supplied to the
serverboard (DP1 indicates the pres-
ence of +3.3V). See the table on the
right for DP1 LED states.
+3.3V Power LED
(DP1)
State System Status
On Power present on serverboard
Off No power present on serverboard