The information in this User’s Manual has been carefully reviewed and is believed to be accurate.
The vendor assumes no responsibility for any inaccuracies that may be contained in this document,
makes no commitment to update or to keep current the information in this manual, or to notify any
person or organization of the updates. Please Note: For the most up-to-date version of this
manual, please see our web site at www.supermicro.com.
SUPER MICRO COMPUTER reserves the right to make changes to the product described in this
manual at any time and without notice. This product, including software, if any, and documentation may not, in whole or in part, be copied, photocopied, reproduced, translated or reduced to any
medium or machine without prior written consent.
IN NO EVENT WILL SUPER MICRO COMPUTER BE LIABLE FOR DIRECT, INDIRECT, SPECIAL,
INCIDENTAL, SPECULATIVE OR CONSEQUENTIAL DAMAGES ARISING FROM THE USE
OR INABILITY TO USE THIS PRODUCT OR DOCUMENTATION, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES. IN PARTICULAR, SUPER MICRO COMPUTER SHALL NOT
HAVE LIABILITY FOR ANY HARDWARE, SOFTWARE, OR DATA STORED OR USED WITH THE
PRODUCT, INCLUDING THE COSTS OF REPAIRING, REPLACING, INTEGRATING, INSTALLING
OR RECOVERING SUCH HARDWARE, SOFTWARE, OR DATA.
Any disputes arising between manufacturer and customer shall be governed by the laws of Santa
Clara County in the State of California, USA. The State of California, County of Santa Clara shall
be the exclusive venue for the resolution of any such disputes. Super Micro's total liability for all
claims will not exceed the price paid for the hardware product.
FCC Statement: This equipment has been tested and found to comply with the limits for a Class B
digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with the
manufacturer’s instruction manual, may cause interference with radio communications. However,
there is no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, you are encouraged to try to correct the interference by one or more of
the following measures:
*Reorient or relocate the receiving antenna.
*Increase the separation between the equipment and the receiver.
*Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
*Consult the dealer or an experienced radio/television technician for help.
California Best Management Practices Regulations for Perchlorate Materials: This Perchlorate
warning applies only to products containing CR (Manganese Dioxide) Lithium coin cells. “Perchlorate
Material-special handling may apply. See www.dtsc.ca.gov/hazardouswaste/perchlorate”.
WARNING: Handling of lead solder materials used
in this product may expose you to lead, a chemical
known to the State of California to cause birth
defects and other reproductive harm.
Manual Revision 1.1a
Release Date: June 6, 2007
Unless you request and receive written permission from SUPER MICRO COMPUTER, you may not
copy any part of this document.
Information in this document is subject to change without notice. Other products and companies
referred to herein are trademarks or registered trademarks of their respective companies or mark
holders.
Notes: 1. Pin 10 is included on the header but not
on the port. 2. NC: No Connections
Audio CD Header Pin Definitions
(CD1)
Pin
#
1
2
3
4
Definition
Left Stereo Signal
Common Ref
Common Ref
Right Stereo Signal
Auxiliary Header Pin Definitions
(Aux.)
Pin
#
1
2
3
4
Definition
Right Stereo Signal
Common Ref
Common Ref
Left Stereo Signal
JPWAKE
J41
4-Pin 12V PWR
A
Parallel Port
J30
U
P
J
PU
J
J11
J45
C
LAN CTRL
CDin
Aux.
AC97
SB2
SB
KB/MS Wake-Up
Fan3
Clock
P
C
I
-
E#
3
x
1
P
C
I
-
E
#
2x
1
P
C
I
-
E#1
x
1
PCI-E x16
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
B
COM2
(North Bridge)
J13
SB3
PU
J
915G
Glantsdale
FWH
Front USB7/8
J43
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
Audio
®
J28
COM1 Port
Video Port
J44
JPL
GLAN Enable
UPER P8SGA
S
WOL
Fan1
(South Bridge)
Battery
Clear CMOS
JBT1
ICH6
J34
JL1
Chs Intru.
DIMM#1A (Blue)
DIMM#2A (Black)
SMB
SATA0
SATA1
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
DIMM#2B (Black)
DIMM#1B (Blue)
Floppy
J27
JP5
WD Reset
E
ID
Buzzer
J3
L
OH
TR
OH1
J
FP C
SATA2
SATA3
JF1
WOR
Fan2
A. COM1
B. COM2
C. Audio
2-12
Chapter 2: Installation
Fan Headers
There are three fan headers (Fan
1, Fan 2 and Fan3) on the P8SGA.
(See the table on the right for pin defi -
nitions.) These are 4-pin fan headers;
however, the traditional 3-wire fans
are also supported. (Pins #1-#3 of the
fan headers are backward compatible
with the traditional 3-pin fans.) When
a 3-wire fan is used, it will be set to
run at the full speed by default. When
a 4-pin fan is used, the CPU and
chassis fan speeds will be automati-
cally controlled by PWM (Pulse Width
Modulation) via Hardware Monitoring
in the BIOS.
Chassis Intrusion
The Chassis Intrusion header is lo-
cated at JL1. See the board layout
in Chapter 1 for the location of JL1
and the table on the right for pin
defi nitions.
Fan Header Pin Definitions
(CPU, Chassis and Overheat)
Pin#
1
2
3
Definition
Ground (black)
+12V (red)
Tachometer
4PWM_Control
Caution: These fan headers use DC power.
Chassis Intrusion
Pin Definitions (JL1)
Pin
Number
Intrusion Input
1
2
Definition
Ground
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
PU
J
P
J
J11
J45
LAN CTRL
CDin
Aux.
AC97
B2
S
SB
U
KB/MS Wake-Up
C
Clock
P
C
I
-
E
#
3
x
1
P
C
I
-
E
#2
x
PC
I
-
E
#
1
x
Fan3
PCI-E x16
1
1
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B3
S
PU
J
915G
Glantsdale
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
JPL
A
FWH
Front USB7/8
J43
WOL
Fan1
(South Bridge)
Battery
Clear CMOS
JBT1
DIMM#1A (Blue)
ICH6
J34
D
JL1
Chs Intru.
DIMM#2A (Black)
SMB
SATA0
SATA1
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
DIMM#2B (Black)
DIMM#1B (Blue)
Floppy
J27
JP5
WD Reset
E
ID
Buzzer
J3
L
OH
TR
OH1
J
FP C
SATA2
SATA3
JF1
WOR
Fan2
B
A. Fan 1
B. Fan 2
C. Fan 3
D. Chassis Intrusion
2-13
P8SGA User's Manual
ATX PS/2 Keyboard and
PS/2 Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse are located at J28. See the
table on the right for pin defi nitions.
(The mouse port is above the key-
board port. See the table on the right
for pin defi nitions.)
Universal Serial Bus (USB)
There are six Universal Serial Bus
ports located at (J44, J11) on the
I/O panel and additional two USB
ports are located at J43 on the moth-
erboard. These ports, labeled USB7
to USB8, can be used to provide
front side chassis access (cables not
included). See the tables on the right
for pin defi nitions.
Pin
Number
1
3
5
7
PS/2 Keyboard
and Mouse Port
Pin Definitions
(J28)
Pin
Number
1
Definition
Data
2
3
Ground
4
VCC
5
Clock
6
USB Pin Definition
J44 & J11
Pin# Definition
1 +5V
2 P0-
3 P0+
4 Ground
J43
Pin
Definition
Number
+5V
POPO+
Ground
NC
NC
2
4
6
8
10
Definition
+5V
POPO+
Ground
Ground
A
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
C
U
P
J
PU
J
B
J11
J45
LAN CTRL
CDin
Aux.
AC97
SB2
SB
KB/MS Wake-Up
Fan3
Clock
P
C
I
-
E#3
x
1
P
C
I
-
E#2
x
1
P
C
I
-
E#1
x
1
PCI-E x16
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
SB3
U
P
J
915G
Glantsdale
FWH
Front USB7/8
J43
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
Audio
®
J28
COM1 Port
Video Port
J44
JPL
GLAN Enable
UPER P8SGA
S
WOL
Fan1
(South Bridge)
Battery
D
Clear CMOS
JBT1
ICH6
J34
JL1
Chs Intru.
DIMM#1A (Blue)
DIMM#2A (Black)
SMB
SATA0
SATA1
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
DIMM#2B (Black)
DIMM#1B (Blue)
Floppy
J27
JP5
WD Reset
E
ID
Buzzer
J3
L
OH
TR
OH1
J
FP C
SATA2
SATA3
JF1
WOR
Fan2
B. USB 1/2
C. USB 3/4/5/6
D. USB 7/8
2-14
A. KB/Mouse
Wake-On-Ring
The Wake-On-Ring header is located at
JWOR. This function allows your com-
puter to be awakened by an incoming
call when in the suspend state. See the
table on the right for pin defi nitions. You
must also have a WOR card and cable to
use WOR.
Chapter 2: Installation
Wake-On-Ring Pin Definitions
Pin
Number
1
2
(JWOR1)
Definition
Ground
Wake-up
Wake-On-LAN
The Wake-On-LAN header is located on
WOL on the motherboard. See the table on
the right for pin defi nitions. You must en-
able the LAN Wake-Up setting in the BIOS
to use this function. (You must also have a
LAN card with a Wake-On-LAN connector
and cable to use this feature.)
Ethernet Port (RJ45 Connector)
One Ethernet port (Gigabit LAN) is
located beside the Audio port on the IO
backplane.
Wake-On-LAN Pin
Definitions (WOL)
Pin
Number
1
Definition
+5V Standby
2
3
Wake-up
Ground
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
PU
J
P
J
C
J11
J45
LAN CTRL
CDin
Aux.
AC97
B2
S
SB
U
KB/MS Wake-Up
Clock
P
C
I
-
E
#
3
x
1
P
C
I
-
E
#2
x
PC
I
-
E
#
1
x
Fan3
PCI-E x16
1
1
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B3
S
PU
J
915G
Glantsdale
B
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
JPL
FWH
Front USB7/8
J43
WOL
Fan1
(South Bridge)
Battery
Clear CMOS
JBT1
DIMM#1A (Blue)
ICH6
J34
JL1
Chs Intru.
DIMM#2A (Black)
SMB
SATA0
SATA1
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
DIMM#2B (Black)
DIMM#1B (Blue)
Floppy
J27
JP5
WD Reset
E
ID
Buzzer
J3
L
OH
TR
OH1
J
FP C
SATA2
SATA3
JF1
WOR
Fan2
A
A. WOR
B. WOL
C. LAN Port
2-15
P8SGA User's Manual
VGA Connector
A VGA connector (JG1) is located next
to the COM1 on the IO backplane.
Refer to the board layout below for
the location.
SMB Header
A System Management Bus header is
located at J34. Connect the appropri-
ate cable here to utilize SMB on your
system.
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
A
J30
PU
J
P
J
J11
J45
LAN CTRL
CDin
Aux.
AC97
B2
S
SB
U
KB/MS Wake-Up
Fan3
Clock
P
C
I
-
E
#
3
x
1
P
C
I
-
E
#2
x
1
PC
I
-
E
#
1
x
1
PCI-E x16
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B3
S
PU
J
915G
Glantsdale
FWH
Front USB7/8
Fan1
DIMM#1A (Blue)
DIMM#1B (Blue)
DIMM#2A (Black)
ICH6
(South Bridge)
J34
SMB
B
SATA0
Battery
Clear CMOS
JBT1
JL1
Chs Intru.
SATA1
WOR
J43
WOL
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
JPL
DIMM#2B (Black)
WD Reset
Buzzer
SATA2
SATA3
SMB Header
Pin Definitions (J34)
Pin
Number
1
2
3
4
Definition
Data
Clock
Ground
No Connection
A. VGA
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
Floppy
J27
JP5
E
ID
J3
L
OH
TR
OH1
J
FP C
1
F
J
Fan2
B. SMB
2-16
AC'97 Output
AC'97 provides high quality onboard
audio.The P8SGA features 6-channel
sound for front L&R, rear L&R, center
and subwoofer speakers. This feature
is activated with the advanced audio
software (on the CD-ROM included with
your motherboard). Sound is then output
through the Line In, Line Out and MIC
jacks (see at right). Activate the "AC 97
Audio" setting in the Advanced Chipset
Features section of BIOS.
Chapter 2: Installation
Blue:
Line In(surround L/R)
Green:
Pink:
Line Out(Front L/R)
MIC In (Center/
subwoofer)
Overheat LED (JOH1)
The JOH header is used to connect an
LED to provide warnings of CPU/chassis
overheating. Refer to Table 2-15 for pin
defi nitions.
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
PU
J
P
J
J11
J45
LAN CTRL
CDin
Aux.
AC97
B2
S
SB
U
A
KB/MS Wake-Up
Clock
P
C
I
-
E
#
3
x
1
P
C
I
-
E
#2
x
PC
I
-
E
#
1
x
Fan3
PCI-E x16
1
1
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B3
S
PU
J
915G
Glantsdale
FWH
Front USB7/8
Fan1
DIMM#1A (Blue)
DIMM#2B (Black)
DIMM#1B (Blue)
DIMM#2A (Black)
WD Reset
ICH6
(South Bridge)
Battery
J43
Clear CMOS
WOL
JBT1
J34
JL1
Chs Intru.
SMB
SATA0
SATA1
Buzzer
OH1
J
B
SATA2
SATA3
WOR
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
JPL
Table 2-15
Overheat LED
Pin Definitions (JOH1)
Pin
Number
1
2
Definition
OH Active
Ground
A. AC'97 Audio
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
Floppy
J27
JP5
E
ID
J3
L
OH
TR
FP C
JF1
Fan2
B. OH LED
2-17
P8SGA User's Manual
2-7 Jumper Settings
Explanation of
Jumpers
To modify the operation of the mother-
board, jumpers can be used to choose
between optional settings. Jumpers cre-
ate shorts between two pins to change
the function of the connector. Pin 1 is
identifi ed with a square solder pad on
the printed circuit board. See the mother-
board layout pages for jumper locations.
Note: On a two-pin jumper, "Closed"
means the jumper is on both pins and
"Open" means the jumper is either on
Connector
Pins
Jumper
Cap
Setting
3 2 1
3 2 1
Pin 1-2 short
only one pin or completely removed.
CMOS Clear
JBT1 is not actually a jumper but consists of two contact pads. To clear the
contents of CMOS, short these pads together by touching them both with a metal
conductor such as the head of a small screwdriver. Note: for ATX power supplies,
you must completely shut down the system and remove the AC power cord before
clearing CMOS.
JPWAKE
J41
JPUSB2
JPUS
LAN CTRL
Aux.
KB/MS Wake-Up
B
Clock
PC
I
-E#
PCI-E
PCI-E#1x1
3x1
#
2
Fan3
PCI-E x16
x
1
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B
JPUS
915G
Glantsdale
FWH
Front USB7/8
3
O
Fan1
I
uper
S
A. Clear CMOS
XPWR
T
A
in
P
42
DIMM#2B (Black)
WD Reset
Buzzer
SATA2
SATA3
J40
Floppy
J27
JP5
IDE
J3
1
OH
TRL
OH
J
C
P
F
1
F
J
2
n
Fa
DIMM#1A (Blue)
DIMM#1B (Blue)
DIMM#2A (Black)
ICH6
(South Bridge)
J34
SMB
SATA0
Battery
J43
Clear CMOS
WOL
JBT1
JL1
A
Chs Intru.
SATA1
WOR
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
Audio
®
J28
4-Pin 12V PWR
COM1 Port
Parallel Port
Video Port
J30
J44
J11
J45
JPL
GLAN Enable
CDin
AC97
UPER P8SGA
S
2-18
Chapter 2: Installation
USB Wake-Up
Use JPUSB jumpers to enable the function of System Wake-Up via USB Devices"
to allow you to wake-up the system by pressing a key on the USB keyboard or by
clicking the USB mouse on your system. The JPUSB jumpers are used together
with the USB Wake-Up function in the BIOS. Enable both the jumpers and the
BIOS setting to allow the system to use this function. See the table on the right
for jumper settings and jumper connections.
(*Note: The default setting for the USB ports is "disabled". However, when the
"USB Wake-Up" function is enabled in the BIOS and the desired USB ports are
enabled via the JPUSB jumper, please be sure to remove all USB devices from
the USB ports whose USB jumpers are set to "disabled"; otherwise, the system
will not go into the standby mode.)
USB Wake-Up
Jumpers & USB Ports
Jumper#
JPUSB
RespectivePort#
USB# 1/2
JPUSB2 USB# 3/4/5/6
JPUSB3USB# 7/8
USB 3/4/5/6 Wake-Up
Jumper Settings
(JPUSB2)
Jumper
Position
Definition
Enabled
1-2
Disabled(*default)
*2-3
USB 1/2 Wake-Up
Jumper Settings
(JPUSB)
Jumper
Position
Definition
Enabled
1-2
Disabled(*default)
*2-3
Watch Dog Enable/Disable
Watch Dog provides system monitoring and can reboot
the system when a software application hangs. Close Pins
1-2 to reset the system if an application hangs. Close
Pins 2-3 to generate a non-maskable interrupt signal for
the application that hangs. See the table on the right for
jumper settings.
JPWAKE
J41
Parallel Port
J30
LAN CTRL
CDin
US
P
J
JPUSB
Aux.
2
B
B
A
PC
PC
KB/MS Wake-Up
Fan3
Clock
PCI-E x16
I-E
#3
x
1
I-E#2 x
1
PC
I-E#1 x
1
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B
US
P
J
915G
Glantsdale
FWH
Front USB7/8
3
C
DIMM#1B (Blue)
DIMM#2B (Black)
WD Reset
Buzzer
SATA2
SATA3
O
per I
u
S
R
PW
X
T
A
Pin
4
2
J40
Floppy
J27
JP5
D
DE
I
J3
L
1
H
R
O
T
JOH
PC
F
1
F
J
2
n
a
F
Fan1
DIMM#1A (Blue)
DIMM#2A (Black)
ICH6
(South Bridge)
J34
SMB
SATA0
Battery
J43
Clear CMOS
WOL
JBT1
JL1
Chs Intru.
SATA1
WOR
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
Audio
®
J28
4-Pin 12V PWR
COM1 Port
Video Port
J44
J11
J45
JPL
GLAN Enable
AC97
UPER P8SGA
S
Front Panel USB 7/8
Wake-Up
Jumper Settings
(JPUSB3)
Jumper
Position
Definition
Enabled
1-2
Disabled(*default)
*2-3
Watch Dog
Jumper Settings (JP5)
Jumper
Position
Pins 1-2
Pins 2-3
Open
Definition
WD to Reset
WD to NMI
Disabled
A. JPUSB
B. JPUSB2
C. JPUSB3
D. WD
2-19
P8SGA User's Manual
Keyboard Wake-Up
The JPWAKE jumper is used together
with the Keyboard Wake-Up function
in the BIOS. Enable both the jumper
and the BIOS setting to allow the sys-
tem to be woken up by pressing a key
on the keyboard. See the table on the
right for jumper settings. Your power
supply must meet ATX specifi cation
2.01 or higher and supply 720 mA of
standby power to use this feature.
Gigabit LAN Enable
Keyboard Wake-Up
Jumper Settings
(JPWAKE)
Jumper
Position
1-2
2-3
Definition
Enabled
Disabled
GLAN Enable(JPL)
JPL is used to for enable the G-LAN
port. Close Pins 1 & 2 of JPL to en-
able the LAN port. See the table on
the right for pin defi nitions.
A
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
PU
J
P
J
J11
J45
LAN CTRL
CDin
Aux.
AC97
B2
S
SB
U
KB/MS Wake-Up
Fan3
Clock
P
C
I
-
E
#
3
x
1
P
C
I
-
E
#2
x
1
PC
I
-
E
#
1
x
1
PCI-E x16
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
B3
S
PU
J
915G
Glantsdale
FWH
Front USB7/8
Fan1
DIMM#1A (Blue)
DIMM#1B (Blue)
DIMM#2A (Black)
ICH6
(South Bridge)
J34
SMB
SATA0
Battery
Clear CMOS
JBT1
JL1
Chs Intru.
SATA1
WOR
J43
WOL
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
& LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
B
JPL
DIMM#2B (Black)
WD Reset
Buzzer
SATA2
SATA3
Pin#
1-2
2-3
Definitions
Enable
Disable
A. Keyboard Wake-
O
rI
e
p
Su
R
W
P
X
T
in A
P
24-
J40
Floppy
J27
JP5
E
ID
J3
L
OH
TR
OH1
J
FP C
1
F
J
Fan2
up
B. GLAN Enable
2-20
Chapter 2: Installation
2-8 Parallel, Floppy, Hard Disk, and Audio Connections
Use the following information to connect the fl oppy and hard disk drive cables.
• The fl oppy disk drive cable has seven twisted wires.
• A red mark on a wire typically designates the location of pin 1.
• A single fl oppy disk drive ribbon cable has 34 wires and two connectors to provide
for two fl oppy disk drives. The connector with twisted wires always connects to
drive A, and the connector that does not have twisted wires always connects to
drive B.
• The 80-wire ATA100/66 IDE hard disk drive cable that came with your system
has two connectors to support two drives. This special cable should be used
to take advantage of the speed this new technology offers. The blue connector
connects to the onboard IDE connector interface and the other connector(s) to
your hard drive(s). Consult the documentation that came with your disk drive
for details on actual jumper locations and settings for the hard disk drive.
Parallel Port Connector
The parallel port is located on J30.
Refer to Figure 2-3 for location. See
the table on the right for pin defi ni-
tions.
JPWAKE
KB/MS Wake-Up
KB/MS
J31
JG1
USB
3/4/5/6
USB1/2
&LAN
J28
COM1 Port
Video Port
J44
Audio
GLAN Enable
®
UPER P8SGA
S
J41
4-Pin 12V PWR
Parallel Port
J30
J11
J45
LAN CTRL
JPL
CDin
AC97
Fan1
P4 CPU
A
2
B
S
U
P
J
USB
P
J
Aux.
LGA 775
Fan3
Clock
PCI-E x16
P
C
I-
E
#
3x
1
P
C
I-
E
#
2
x
1
P
C
I-
E
#
1x
1
PCI-2
PCI-1
PCI-3
COM2
J13
U
P
J
915G
Glantsdale
(North Bridge)
FWH
Front USB7/8
3
B
S
DIMM#1A (Blue)
ICH6
(South Bridge)
J34
Battery
J43
Clear CMOS
JL1
WOL
Chs Intru.
JBT1
DIMM#2A (Black)
SMB
O
I
r
e
p
u
S
DIMM#2B (Black)
DIMM#1B (Blue)
WD Reset
Buzzer
J3
1
H
OH
JO
SATA0
SATA2
SATA1
SATA3
WOR
Parallel (Printer) Port Pin Definitions
(J30)
Pin Number Function
1Strobe 3Data Bit 0
5Data Bit 1
7Data Bit 2
9Data Bit 3
11Data Bit 4
13Data Bit 5
15Data Bit 6
17Data Bit 7
19ACK
21BUSY
23PE
25SLCT
R
XPW
T
nA
i
P
4
2
J40
Floppy
J27
JP5
E
D
I
CTRL
P
F
1
F
J
2
n
a
F
Pin Number Function
2Auto Feed 4Error 6Init 8SLCT IN 10GND
12GND
14GND
16GND
18GND
20GND
22GND
24GND
26NC
A. Parallel Port
2-21
P8SGA User's Manual
Floppy Connector
The fl oppy connector is located at
J27. Refer to Figure 2-3 for location.
See the table on the right for pin
defi nitions.
IDE Connector
There are no jumpers to confi gure
the onboard IDE interfaces Pins 3,
5 of JF1. See the table on the left
for pin defi nitions. *Note: You must
use the ATA100/66 cable included
with your system to benefi t from
the ATA100/66 technology.
JPWAKE
J41
4-Pin 12V PWR
Parallel Port
J30
J11
J45
LAN CTRL
JPL
CDin
AC97
J
J
Aux.
PUSB2
P
B
S
U
KB/MS Wake-Up
Fan3
Clock
PC
I-E#
3
x1
PC
I
-
E
#
2
x1
PC
I-E#
1
x1
PCI-E x16
PCI-3
PCI-2
PCI-1
P4 CPU
LGA 775
COM2
(North Bridge)
J13
PUSB3
J
915G
Glantsdale
Front USB7/8
FWH
O
SMB
SATA0
SATA1
WOR
DIMM#1B (Blue)
DIMM#2B (Black)
WD Reset
Buzzer
SATA2
SATA3
I
r
e
p
Su
R
nATXPW
Pi
24-
J40
Floppy
J27
JP5
E
D
I
J3
1
H
H
O
O
J
CTRL
FP
JF1
2
Fan
Fan1
DIMM#1A (Blue)
DIMM#2A (Black)
ICH6
(South Bridge)
J34
Battery
J43
Clear CMOS
JL1
WOL
Chs Intru.
JBT1
USB
J31
3/4/5/6
KB/MS
COM1 Port
Video Port
JG1
USB1/2
& LAN
Audio
®
UPER P8SGA
S
J28
J44
GLAN Enable
Floppy Connector Pin Definitions (J27)
Pin Number Function
1GND
3GND
5Key
7GND
9GND
11GND
13GND
15GND
17GND
19GND
21GND
23GND
25GND
27GND
29GND
31GND
33GND
IDE Connector Pin Definitions
Pin NumberFunction
1Reset IDE
3Host Data 7
5Host Data 6
7Host Data 5
9Host Data 4
11Host Data 3
13Host Data 2
15Host Data 1
17Host Data 0
19GND
21DRQ3
23I/O Write 25I/O Read 27IOCHRDY
29DACK3 31IRQ14
33Addr 1
35Addr 0
37Chip Select 0
39Activity
Pin NumberFunction
2GND
4Host Data 8
6Host Data 9
8Host Data 10
10Host Data 11
12Host Data 12
14Host Data 13
16Host Data 14
18Host Data 15
20Key
22GND
24GND
26GND
28BALE
30GND
32IOCS16 34GND
36Addr 2
38Chip Select 1 40GND
A. Floppy
B. IDE
2-22
Chapter 2: Installation
2-9 Installing the Operating System and Software
Programs
After all the hardware has been installed, you must fi rst install the operating system,
and then, other software drivers. The necessary drivers are all included on the
Supermicro CDs that came packaged with your motherboard.
2-23
P8SGA User's Manual
Introduction to Serial ATA (SATA)
Serial ATA(SATA) is a physical storage interface. It uses a single cable with a
minimum of four wires to create a point-to-point connection between devices. It
is a serial link which supports SATA Transfer rates from 150MBps. Because the
serial cables used in SATA are thinner than the traditional cables used in Paral-
lel ATA(PATA), SATA systems have better airfl ow and can be installed in smaller
chassis than Parallel ATA. In addition, the cables used in PATA can only extend
to 40cm long, while Serial ATA cables can extend up to one meter. Overall, Serial
ATA provides better functionality than Parallel ATA.
Introduction to the Intel ICH6 I/O Controller Hub
Located in the South Bridge of the Intel Grantsdale (915G) chipset, the ICH6 I/O
Controller Hub provides the I/O subsystem with access to the rest of the system. It
supports 2-channel Ultra ATA/100 Bus Master IDE controller (PATA) and two Serial
ATA (SATA) Host Controllers, which support up to two Serial ATA ports and up to
four hard drives. TheICH6 I/O Controller Hub supports the following Parallel ATA
(PATA) and Serial (SATA) device confi gurations:
SATA Operate Modes
You can select from the following modes: Auto, Combined, Enhanced, and SATA
Only Mode. The number of devices supported by these modes are listed below:
*SATA Only: The maximum of 4 devices are supported (4 SATA)
*Auto Mode: The maximum of 6 devices supported (4 SATA + 2 IDE)
*Enhanced Mode: The maximum of 6 devices supported (4 SATA + 2 IDE)
*Combined Mode: The maximum of 4 devices supported (2 SATA + 2 IDE)
2-24
Chapter 2: Installation
Supero Doctor III
The Supero Doctor III program is a Web-based management tool that supports
remote management capability. It includes Remote and Local Management tools.
The local management is called the SD III Client. The Supero Doctor III program
included on the CDROM that came with your motherboard allows you to monitor
the environment and operations of your system. Supero Doctor III displays crucial
system information such as CPU temperature, system voltages and fan status. See
the Figure below for a display of the Supero Doctor III interface.
*Note 1: The default user name and password are ADMIN.
*Note 2: In the Windows OS environment, the Supero Doctor III settings take pre-
cedence over the BIOS settings. When fi rst installed, Supero Doctor III adopts the
temperature threshold settings previously set in the BIOS. Any subsequent changes
to these thresholds must be made within Supero Doctor, since the SD III settings
override the BIOS settings. For the Windows OS to adopt the BIOS temperature
threshold settings, please change the SDIII settings to be the same as those set
in the BIOS.
Supero Doctor III Interface Display Screen-I (Health Information)
2-25
P8SGA User's Manual
Supero Doctor III Interface Display Screen-II (Remote Control)
(*Note: SD III Software Revision 1.0 can be downloaded from our Website at: ftp://
ftp.supermicro.com/utility/Supero_Doctor_III/. You can also download SDIII User's
Guide at: http://www.supermicro.com/PRODUCT/Manuals/SDIII/UserGuide.pdf. For
Linux, we will still recommend Supero Doctor II.)
2-26
Chapter 3: Troubleshooting
Chapter 3
Troubleshooting
3-1 Troubleshooting Procedures
Use the following procedures to troubleshoot your system. If you have followed all
of the procedures below and still need assistance, refer to the ‘Technical Support
Procedures’ and/or ‘Returning Merchandise for Service’ section(s) in this chapter.
Always disconnect the AC power cord before adding, changing or installing any
hardware components.
Before Power On
1. Check that the +5v standby LED is not lit (LE2 on motherboard).
2. Make sure that the 4-pin 12v power connector at J24 is connected to your
power supply.
3. Make sure no short circuits between the motherboard and chassis.
4. Disconnect all ribbon/wire cables from the motherboard, including those for the
keyboard and mouse.
5. Remove all add-on cards.
6. Install a CPU and heatsink (making sure it is fully seated) and connect the
chassis speaker and the power LED to the motherboard. Check all jumper
settings as well.
7. Use the correct type of onboard CMOS battery as specifi ed by the Manu-
facturer. Do not install the CMOS battery upside down to avoid possible
explosion.
No Power
1. Make sure no short circuits between the motherboard and the chassis.
2. Verify that all jumpers are set to their default positions.
3. Check that the 115V/230V switch on the power supply is properly set.
4. Turn the power switch on and off to test the system.
5. The battery on your motherboard may be old. Check to verify that it still sup-
plies ~3VDC. If it does not, replace it with a new one.
No Video
1. If the power is on but you have no video, remove all the add-on cards and
cables.
2. Use the speaker to determine if any beep codes exist. Refer to Appendix A for
details on beep codes.
3-1
P8SGAUser's Manual
NOTE
If you are a system integrator, VAR or OEM, a POST diagnostics
card is recommended. For I/O port 80h codes, refer to App. B.
Memory Errors
1. Make sure the DIMM modules are properly and fully installed.
2. You should be using unbuffered DDR memory. Also, it is recommended that you
use the same memory speed for all DIMMs in the system. See Section 2-4
for memory limitations.
3. Check for bad DIMM modules or slots by swapping modules between slots and
noting the results.
4. Check the power supply voltage 115V/230V switch.
Losing the System’s Setup Confi guration
1. Make sure that you are using a high quality power supply. A poor quality power
supply may cause the system to lose the CMOS setup information. Refer to
Section 1-6 for details on recommended power supplies.
2. The battery on your motherboard may be old. Check to verify that it still supplies
~3VDC. If it does not, replace it with a new one.
3. If the above steps do not fi x the Setup Confi guration problem, contact your
vendor for repairs.
3-2 Technical Support Procedures
Before contacting Technical Support, please take the following steps. Also, note
that as a motherboard manufacturer, Supermicro does not sell directly to end-us-
ers, so it is best to fi rst check with your distributor or reseller for troubleshooting
services. They should know of any possible problem(s) with the specifi c system
confi guration that was sold to you.
1. Please go through the ‘Troubleshooting Procedures’ and 'Frequently Asked
Question' (FAQ) sections in this chapter or see the FAQs on our web site
(http://www.supermicro.com/support/faqs/) before contacting Technical
Support.
2. BIOS upgrades can be downloaded from our web site at
supermicro.com/support/bios/
).
(http://www.
Note: Not all BIOS can be fl ashed; it depends on the modifi cations to the
boot block code.
3-2
Chapter 3: Troubleshooting
3. If you still cannot resolve the problem, include the following information when
contacting Super Micro for technical support:
• Motherboard model and PCB revision number
• BIOS release date/version (this can be seen on the initial display when your
system fi rst boots up)
•System confi guration
An example of a Technical Support form is on our web site at
(http://www.supermicro.com/support/contact.cfm).
4. Distributors: For immediate assistance, please have your account number ready
when placing a call to our technical support department. We can be reached
by e-mail at support@supermicro.com, by phone at: (408) 503-8000, option
2, or by fax at (408)503-8019.
3-3 Frequently Asked Questions
Question: What type of memory does my motherboard support?
Answer: The P8SGA supports up to 4 GB of non-ECC, unbuffered DDR-400/DDR
333, two-way interleaved or non-interleaved SDRAM. See Section 2-4 for details
on installing memory.
Question: How do I update my BIOS?
Answer: It is recommended that you not upgrade your BIOS if you are not experi-
encing problems with your system. Updated BIOS fi les are located on our web site
at http://www.supermicro.com/techsupport/BIOS/bios.htm. Please check our BIOS
warning message and the information on how to update your BIOS on our web site.
Also, check the current BIOS revision and make sure it is newer than your current
BIOS before downloading. Select your mainboard model and download the BIOS
fi le to your computer. Unzip the BIOS update fi le and you will fi nd the readme.txt
(fl ash instructions), the awdfl ash.exe (BIOS fl ash utility) and the BIOS image (xxxx.
bin) fi les. Copy these fi les onto a bootable fl oppy and reboot your system. Then,
follow the readme.txt to fl ash the BIOS.
Question: After fl ashing the BIOS my system does not have video. How can
I correct this?
Answer: If the system does not have video after fl ashing your new BIOS, it indicates
that the fl ashing procedure failed. To fi x this, fi rst clear CMOS per the instructions
in this manual and retry the BIOS fl ashing procedure. If you still do not have video,
please use the following BIOS Recovery Procedure. First, make sure the JPWAKE
jumper is disabled. Then, turn your system off and place the fl oppy disk with the
saved BIOS image fi le (see above FAQ) in drive A. Press and hold <Alt> and <F2>
3-3
P8SGAUser's Manual
at the same time, then turn on the power keeping these keys pressed until your
fl oppy drive starts reading. Your screen will remain blank until the BIOS program
is done. If the system reboots correctly, then the recovery was successful. The
BIOS Recovery Procedure will not update the boot block in your BIOS.
Question: What's on the CD that came with my motherboard?
Answer: The supplied compact disc has quite a few drivers and programs that will
greatly enhance your system. We recommend that you review the CD and install the
applications you need. Applications on the CD include chipset drivers for Windows
and security and audio drivers.
Question: Why can't I turn off the power using the momentary power on/off
switch?
Answer: The instant power off function is controlled in BIOS by the Power But-
ton Mode setting. When the On/Off feature is enabled, the motherboard will have
instant off capabilities as long as the BIOS has control of the system. When the
Standby or Suspend feature is enabled or when the BIOS is not in control such
as during memory count (the fi rst screen that appears when the system is turned
on), the momentary on/off switch must be held for more than four seconds to shut
down the system. This feature is required to implement the ACPI features on the
motherboard.
Question: How do I utilize the six-channel sound?
Answer: The six-channel sound available on the P8SGA can be enabled with the
audio driver software that was included in your motherboard package. When acti-
vated, sound will be routed through the jacks under the Game Port as follows: Line
Out = front L&R speakers, Line In = rear L&R speakers, MIC = center and subwoofer
speakers. You must also enable the "AC97 Audio" setting in the Advanced Chipset
section of the BIOS setup.
Question: I installed my microphone correctly but I can't record any sound.
What should I do?
Answer: Go to <Start>, <Programs>, <Accessories>, <Entertainment> and then
<Volume Control>. Under the Properties tab, scroll down the list of devices in the
menu and check the box beside "Microphone".
Question: How do I connect the ATA100/66 cable to my IDE device(s)?
Answer: The 80-wire/40-pin high-density ATA100/66 IDE cable that came with
your system has two connectors to support two drives. This special cable must be
used to take advantage of the speed the ATA100/66 technology offers. Connect
the blue connector to the onboard IDE header and the other connector(s) to
your hard drive(s). Consult the documentation that came with your disk drive for
details on actual jumper locations and settings.
3-4
Chapter 3: Troubleshooting
Question: After I have installed 4 pieces of 1GB Memory, why does the BIOS
only detect about 3.145 GB of memory during POST?
Answer: Because the chipset does not support memory remapping, and PCI-e
memory requires a great deal of memory, so there is a memory hole located around
the 4GB memory address.
Question: I have already enabled the USB Wake-Up mode in the BIOS, my
system still cannot enter "Standby Mode"? Why?
Answer: When USB Wake-Up is enabled, be sure to unplug the USB devices on
the Front Panel USB ports (-USB 7/8) before entering Standby Mode.
3-4 Returning Merchandise for Service
A receipt or copy of your invoice marked with the date of purchase is required be-
fore any warranty service will be rendered. You can obtain service by calling your
vendor for a Returned Merchandise Authorization (RMA) number. When returning
to the manufacturer, the RMA number should be prominently displayed on the
outside of the shipping carton, and mailed prepaid or hand-carried. Shipping and
handling charges will be applied for all orders that must be mailed when service
is complete.
This warranty only covers normal consumer use and does not cover damages in-
curred in shipping or from failure due to the alteration, misuse, abuse or improper
maintenance of products.
During the warranty period, contact your distributor fi rst for any product problems.
3-5
P8SGAUser's Manual
Notes
3-6
Chapter 4: BIOS
Chapter 4
BIOS
4-1 Introduction
This chapter describes the AwardBIOS for the P8SGA. The Award ROM BIOS
is stored in a Flash chip and can be easily upgraded using a fl oppy disk-based
program.
Note: Due to periodic changes to the BIOS, some settings may have been added
or deleted and might not yet be recorded in this manual. Refer to the Manual
Download area of our web site for any changes to BIOS that are not refl ected in
this manual.
System BIOS
The BIOS is the Basic Input Output System used in all IBM® PC, XT™, AT®, and
PS/2® compatible computers. The AwardBIOS Flash chip stores the system pa-
rameters, such as amount of memory, type of disk drives and video displays, etc.
CMOS requires very little power. When the computer is turned off, a back-up battery
provides power to the BIOS Flash chip, enabling it to retain the system parameters.
Each time the computer is powered-on, the computer is then confi gured with the
values stored in the BIOS ROM by the system BIOS, which gains control when the
computer is powered on.
How To Change the Confi guration Data
The CMOS information that determines the system parameters may be changed
by entering the BIOS Setup utility. This Setup utility can be accessed by pressing
<Del> at the appropriate time during system boot.
Starting the Setup Utility
Normally, the only visible POST (Power On Self Test) routine is the memory test. As
the memory is being tested, press the <Delete> key to enter the main menu of the
BIOS Setup utility. From the main menu, you can access the other setup screens,
such as the Chipset and Power menus. Section 4-3 gives detailed descriptions of
each parameter setting in the Setup utility.
4-1
P8SGAUser's Manual
4-2 Running Setup
*Optimal default settings are in bold text unless otherwise noted.
The BIOS setup options described in this section are selected by choosing the ap-
propriate text from the Main BIOS Setup screen. All displayed text is described in
this section, although the screen display is often all you need to understand how
to set options (see on the next page).
When you fi rst power on the computer, the AwardBIOS™ is immediately activated.
While the BIOS is in control, the Setup program can be activated in one of two
ways:
1. By pressing <Del> immediately after turning the system on, or
2. When the following message appears briefl y at the bottom of the screen
during the POST (Power On Self-Test), press the <Del> key to activate
the Main Setup Menu.
Press DEL to enter SETUP
4-3 Main BIOS Setup
All Main Setup options are described in this section. The Main BIOS Setup screen
is displayed below.
Use the <Up> <Down> arrow keys or the <Tab> key to move among the different
settings in the above menu.
Press the <Esc> key to exit the CMOS Setup Menu and use the <Left> <Right> arrow
keys to enter the other categories of BIOS settings. The next section is described in
detail to illustrate how to navigate through the menus.
4-2
Main BIOS Setup Menu
Chapter 4: BIOS
Date/Time
Set the system date and time. Key in the correct information in the mm, dd and yy
fi elds. Press the Enter key to save the data.
Legacy Diskette A
This setting allows the user to set the type of fl oppy disk drive installed as diskette
A. The options are None, 360Kb 5.25 in, 1.2MB 5.25 in, 720Kb 3.5 in, 1.44MB,
3.5 in and 2.88MB 3.5 in.
Legacy Diskette B
This setting allows the user to set the type of fl oppy disk drive installed as diskette
B. The options are None, 360Kb 5.25 in, 1.2MB 5.25 in, 720Kb 3.5 in, 1.44MB,
3.5 in and 2.88MB 3.5 in.
Swap Floppy Drive
If the system has two fl oppy drives, enable this feature to assign physical drive
B to logical drive A or physical drive A to logic drive B. The options are Enabled
and Disabled.
IDE Channel 0 Master/Slave/ IDE Channel 1 Master/Slave/ IDE
Channel 2 Master/Slave / IDE Channel 3 Master/Slave
These settings allow the user to set the parameters of the IDE Channel 0 Master/
Slave and IDE Channel 1 Master/Slave slots. Hit <Enter> to activate the following
sub-menu screen for detailed options of these items. Set the correct confi gurations
accordingly. The items included in the submenu are listed below:
4-3
P8SGAUser's Manual
IDE HDD Auto-Detection
This option allows the BIOS to automatically display the confi guration settings
for the IDE devices. Press Enter to see the setting displayed by the BIOS.
IDE Channel 0 Master
Press the <Enter> key to activate the IDE HDD Auto-Detection function, which
will allow the BIOS to automatically detect the status of the IDE HDD installed
in the system, such as the size, the number of cylinders, the confi gurations
of items such as Head, Precomp, Landing Zone and Sector.
Access Mode
This item specifi es the location through which the AwardBIOS accesses the
IDE Primary Master Device. The settings are CHS, LBA, Large, and Auto.
Extended IDE Drive (*For IDE Channels 2/3 only)
Select Auto to allow the AwardBIOS to auto detect and display the status of
Serial ATA drives. The options are Auto and None.
Halt On
This item allows the user to enable the function of Halt On. The options are All
Error, No Error, All But Keyboard, All, But Diskette, and All, But Disk/Key.
Base Memory/Extended Memory/Total Memory
These are displays that inform you how much of each type of memory is
recognized as being present in the system.
4-4
Chapter 4: BIOS
4-4 Advanced BIOS Setup
Choose Advanced BIOS Setup from the Award BIOS main menu with the Left/Right
arrow keys. You should see the following display. Select one of the items in the left
frame of the screen to go to the sub-screen for that item. Advanced BIOS Setup
options are displayed by highlighting the option using the arrow keys. All Advanced
BIOS Setup options are described in this section.
4-4.1 Advanced BIOS Features
When the item of Advanced BIOS Features is highlighted, press the <Enter> key
to activate the screen below:
4-5
P8SGAUser's Manual
Quick Boot
If enabled, this feature allows the system to skip certain tests while booting. This
will decrease the time needed to boot the system. The settings are Enabled and
Disabled.
Quiet Boot
This feature allows the user to activate the function of Quiet Boot. Enabled and
Disabled.
ACPI Function
Select Enabled to activate the function of BIOS Support for Advanced Confi guration
and Power Interface features. The settings are Enabled or Disabled.
ACPI Suspend Type
If enabled, the option allows the user to determine the ACPI Suspend type. The
options are S1(POS), S3(STR), S1&S3.
APIC Mode
This setting allows you to Enable or Disable APIC. APIC is used to assign interrupt
signals to a specifi c processor on multiprocessor system and provides IRQs beyond
the conventional 16 under the Windows 2000 or XP OS. It has no effect on single
processor systems.
MPS Version Control
This setting allows you to state the MPS version for your operating system. The
options are 1.1 and 1.4.
4-6
Chapter 4: BIOS
PWRON After PWR-Fail
This setting allows the user to specify how the system will respond after power
loss. The options are Off, On and Former-Sts.
Watch Dog Timer Select
This setting is for enabling the Watch Dog feature. The options are Disabled, 10
Sec, 20 Sec, 30 Sec, 40 Sec, 1 Min, 2 Min, 3 Min and 4 Min.
4-4.2 Advanced Chipset Control
System Memory Frequency
This setting allows you to set the system memory speed. The options are Auto,
333MHz, 400MHz, and 533MHz.
SLP_S4# Assertion Width
This setting allows you to set SLP_S4# Assertion Width. The options are 4 to 5
Sec, 3 to 4 Sec, 2 to 3 Sec, 1 to 2 Sec.
CPU THRM-Throttling
This setting allows the CPU to slow down and function at the level specifi ed by
this setting when the CPU reaches a temperature setting pre-defi ned by the user.
The options are 75%, 50% and 25%.
4-7
P8SGAUser's Manual
PEG/On-Chip VGA Control
This setting allows you to enable or disable the PEG/On-Chip VGA Controller. The
options are Auto, PEG Port, and Onchip VGA.
On-Chip Frame Buffer Size
This setting allows you to set the On-Chip Frame Buffer Size. The options are 1
MB, 4 MB, 8 MB, 16 MB and 32 MB.
Fixed Memory Size
This setting allows you to set the fi xed memory size for the system. The options
are 64 MB and 128 MB.
DVMT Memory Size
This setting allows you to select the DVMT size for the system. The options are
64 MB, and 128 MB.
On-Chip Serial ATA
Select Disabled to disable SATA Controller. Select Auto to allow the BIOS to make
arrangements automatically. Select Combined Mode to use the PATA and SATA
Combined Mode. The maximum of 2 IDE drives in each channel is allowed. Select
Enhanced Mode to enable both SATA and PATA. This mode will support up to 6 IDE
drives. Select SATA Only to allow SATA to operate in the Legacy Mode .
USB Controller
This setting allows you to enable or disable the USB Controller. The options are
Enabled, and Disabled.
USB 2.0 Controller
This setting allows you to enable or disable the USB 2.0 (EHCI) Controller. The
options are Enabled, and Disabled.
USB Legacy Support
This setting allows you to enable or disable the functions of USB, Keyboard/Mouse
under POST and DOS. The options are Disabled, and Enabled.
AC97 Audio
Select Disable to disable AC 97 Audio Controller. Select Auto to allow the BIOS
select AC97 automatically. The options are Auto, and Disabled.
4-8
4-4.3 I/O Device Confi guration
Chapter 4: BIOS
Onboard Serial Port 1/Onboard Serial Port 2
This setting allows the user to set the address and the corresponding IRQ for the
Serial Port1 and Serial Port 2. The options are Disabled , 3F8/IRQ4, 2F8/IRQ3,
3E8/IRQ4, 2E8/IRQ3, and Auto. The default setting for Serial Port1 is 3F8/IRQ4
and the default for Port 2 is 2F8/IRQ3.
UART Mode Select
This setting allows the user to select the UART mode for the BIOS. The options
are IrDA, ASKIR and Normal.
RxD, TxD Active
This allows the user to change the settings for the RxD, TxD Active function. The
options are Hi, Hi, Hi, Lo, Lo, Hi, and Lo, Lo.
IR Transmission Delay
If Enabled, the transmission of IR (infrared) signals will be delayed. The options
are Enabled and Disabled.
UR2 Duplex Mode
This setting set the mode for the UR2 Duplex Mode. The options are Full and
Half.
Use IR Pins
This item sets the usage of the IR pins. The options are RxD2, TxD2 and IR-
Rx2Tx2.
4-9
P8SGAUser's Manual
Onboard Parallel Port
This setting allows the user to set the address and the corresponding IRQ for
the onboard parallel port. The options are Disabled, 378/IRQ7, 278/IRQ5 and
3BC/IRQ7.
Parallel Port Mode
This setting sets the mode for the onboard Parallel port. The options are SPP,
EPP, ECP, ECP+EPP, and Normal.
EPP Mode Select
This setting allows the user to select the EPP port type. The options are EPP 1.9
and EPP 1.7.
ECP Mode Use DMA
This setting allows the user to select the DMA channel for the ECP mode (port) to
use. The options are 1 and 3.
Power On Function
This setting allows the user to decide which method to use to power on the
system. The options are Password, Hot Key, Mouse Left, Mouse Right, Any Key,
and Button Only.
KB Power On Password
This setting allows the user to enter the Password when the system is powered
on through the keyboard.
Hot Key Power On
This setting allows the user to decide which hot-keys to use in order to power
on the system. The options are Ctrl-F1, Ctrl-F2, Ctrl-F3, Ctrl-F4, Ctrl-F5, Ctrl-F6,
Ctrl-F7, and Ctrl-F8.
4-10
Chapter 4: BIOS
4-4.4PnP Confi guration
Choose PCI/PnP Confi gurations from the Award BIOS main menu with the Left/
Right arrow keys. You should see the following display:
Onboard LAN
This setting allows you to enable or disable the Onboard LAN Controller. The options
are Enabled, and Disabled.
Initial Display First
This feature specifi es the device that will initiate the monitor display when the
system is fi rst turned on. The options are PCI Slot and Onboard.
Reset Confi guration Data
Enabling this setting resets the extended system confi guration data when you exit
the setup. Do this when you have installed a new add-on card and the system
reconfi guration has caused such a serious confl ict that the OS cannot reboot the
system. The options are Enabled and Disabled.
Resources Controlled By
This setting allows the BIOS to automatically confi gure all boot and Plug and Play
compatible devices. If you choose Auto, you cannot select the IRQ, DMA and
memory base address fi elds because BIOS automatically assigns them. The options
are Auto (ESCD) and Manual.
4-11
P8SGAUser's Manual
Maximum Payload Size
This setting allows the AwardBIOS to set the maximum TLP Payload size for the
PCI Express devices in the system. The options are: 128 (bytes), 256 (bytes), 512
(bytes), 1024 (bytes), 2048 (bytes), and 4096 (bytes).
PCI Express Root Port Function
PCI Express Port 1/PCI Express Port 2/PCI Express Port 3/PCI Express
Port 4
Select Enabled to enable the PCI Express Root Port Functions for the PCI
Express port specifi ed. The options are: Disabled, Enabled, and Auto.
PCI-E Compliance Mode
This features allows the BIOS to set the version of PCI-E Compliance Mode for
the system. The options are: v.1 .0a and v.1.0
4-12
Chapter 4: BIOS
4-4.5 Hardware Monitors
This section allows the AwardBIOS to display the status of hardware components
monitored by the BIOS.
CPU Warning Temperature
This allows you to set the CPU warning temperature. If the CPU temperature
reaches this threshold, an alarm will be activated and a warning message will be
displayed onscreen. The options are Disabled, 60
0
75
C/1670F, 800C/1760F and 850C/1850F. (*See the note below.)
0
C/1400F, 6 50C/1490F, 7 00C/1580F,
Highlight this and hit <Enter> to see monitor data for the following items:
CPU Temperature: This item displays CPU1 Temperature.
In addition to temperature monitoring, the status of the following items will also
2. Initialize 8042 self-test
08h 1. Test special keyboard controller for Winbond 977 series Super
I/O chips.
2. Enable keyboard interface.
09h Reserved
0Ah
0Bh Reserved
0Ch Reserved
0Dh Reserved
0Eh Test F000h segment shadow to see whether it is R/W-able or not. If
Disable PS/2 mouse interface (optional).
Auto detect ports for keyboard & mouse followed by a port & interface swap
(optional).
Reset keyboard for Winbond 977 series Super I/O chips.
test fails, keep beeping the speaker.
B-1
P8SGAUser’s Manual
POST (hex) Description
0Fh Reserved
10h Auto detect flash type to load appropriate flash R/W codes into the
run time area in F000 for ESCD & DMI support.
11h Reserved
12h Use walking 1’s algorithm to check out interface in CMOS
circuitry. Also set real-time clock power status, and then check for
override.
13h Reserved
14h Program chipset default values into chipset. Chipset default
values are MODBINable by OEM customers.
15h Reserved
16h Initial Early_Init_Onboard_Generator switch.
17h Reserved
18h Detect CPU information including brand, SMI type (Cyrix or
Intel) and CPU level (586 or 686).
19h Reserved
1Ah Reserved
1Bh Initial interrupts vector table. If no special specified, all H/W
interrupts are directed to SPURIOUS_INT_HDLR & S/W
-Search for a valid VGA device & VGA BIOS, and put it
into C000:0.
24h Reserved
25h Reserved
26h Reserved
27h Initialize INT 09 buffer
28h Reserved
29h
2Ah Reserved
2Bh Reserved
2Ch Reserved
Program CPU internal MTRR (P6 & PII) for 0-640K memory address.
Initialize the APIC for Pentium class CPU.
Program early chipset according to CMOS setup. Example: onboard IDE
controller.
Measure CPU speed.
Invoke video BIOS.
B-2
Appendix B: Award BIOS POST Codes
POST (hex) Description
2Dh 1. Initialize multi-language
2. Put information on screen display, including Award title, CPU type, CPU
speed ….
2Eh Reserved
2Fh Reserved
30h Reserved
31h Reserved
32h Reserved
33h Reset keyboard except Winbond 977 series Super I/O chips.
34h Reserved
35h Reserved
36h Reserved
37h Reserved
38h Reserved
39h Reserved
3Ah Reserved
3Bh Reserved
3Ch Test 8254
3Dh Reserved
3Eh Test 8259 interrupt mask bits for channel 1.
3Fh Reserved
40h Test 8259 interrupt mask bits for channel 2.
41h Reserved
42h Reserved
43h Test 8259 functionality.
44h Reserved
45h Reserved
46h Reserved
47h Initialize EISA slot
48h Reserved
49h 1. Calculate total memory by testing the last double word of each 64K page.
2. Program writes allocation for AMD K5 CPU.
4Ah Reserved
4Bh Reserved
4Ch Reserved
4Dh Reserved
4Eh 1. Program MTRR of M1 CPU
2. Initialize L2 cache for P6 class CPU & program CPU with proper cacheable
range.
3. Initialize the APIC for P6 class CPU.
4. On MP platform, adjust the cacheable range to smaller one in case the
cacheable ranges between each CPU are not identical.
4Fh Reserved
50h Initialize USB
51h Reserved
52h Test all memory (clear all extended memory to 0)
53h Reserved
54h Reserved
55h Display number of processors (multi-processor platform)
56h Reserved
57h 1. Display PnP logo
-ALT+F2 is pressed
74h Reserved
75h Detect & install all IDE devices: HDD, LS120, ZIP, CDROM…..
76h Reserved
77h Detect serial ports & parallel ports.
78h Reserved
79h Reserved
7Ah Detect & install co-processor
7Bh Reserved
7Ch Reserved
7Dh Reserved
7Eh Reserved
7Fh 1. Switch back to text mode if full screen logo is supported.
-If errors occur, report errors & wait for keys
-If no errors occur or F1 key is pressed to continue: