Shuttle AK38 User manual

AK38/AK38N
AK39/AK39N
SocketA
AMD Athlon/Duron Processor
Based DDR Main Board
User's Manual

AK38/AK38N
AK39/AK39N
SocketA
AMD Athlon/Duron Processor
based DDR Mainboard
Manual Version 1.0
Copyright
Copyright©2002 by Shuttle®Inc. All Rights Reserved.
No part of this publication may be reproduced, transcribed, stored in a retrieval system,
translated into any language, or transmitted in any form or by any means, electronic,
mechanical, magnetic, optical, chemical, photocopying, manual, or otherwise, without
prior written permission from Shuttle®Inc.
Disclaimer
Shuttle®Inc. shall not be liable for any incidental or consequential damages resulting from the
performance or use of this product.
This company makes no representations or warranties regarding the contents of this manual.
Information in this manual has been carefully checked for reliability; however, no guarantee is
given as to the correctness of the contents. In the interest of continued product improvement,
this company reserves the right to revise the manual or include changes in the specifications
of the product described within it at any time without notice and without obligation to notify any
person of such revision or changes. The information contained in this manual is provided for
general use by the customers.
Trademarks
Shuttle is a registered trademark of Shuttle Inc.
VIA isaregisteredtrademarkofVIACorporation.
AMD, Athlon, and Duron are registered trademarks of AMD Corporation.
PS/2 is a registered trademark of IBM Corporation.
AWARD is a registered trademark of Award Software Inc.
Microsoft and Windows are registered trademarks of Microsoft Corporation.
General Notice: Other brand and product names used herein are for identification purposes
only and may be trademarks of their respective owners.
M690

Thermalissue ishighly essentialfor processorswith aspeed of600MHz andabove.
Hence,we recommendyou touse theCPU fanqualified by AMD or motherboard
manufacturer.Meanwhile,please make sureCPUandfan aresecurelyfastenedwell.
Otherwise,improperfan installation notonlygetssystem unstablebutalsocould
damageboth CPUandmotherboard becauseinsufficient thermaldissipation.
Ifyou wouldlike toknow more aboutthermal topicplease seeAMD website for
detailedthermalrequirement through theaddress:
http://www.amd.com
WARNING

- 1 -
WHAT's IN THE MANUAL .................................................................... 5
Quick Reference ............................................................................................... 5
About This Manual ........................................................................................... 5
1 INTRODUCTION ................................................................................ 6
1.1 TO DIFFERENT USERS ............................................................................. 6
First-TimeDIYSystem Builder ................................................................. 6
ExperiencedDIYUser ............................................................................. 6
SystemIntegrator..................................................................................... 6
1.2 ITEM CHECKLIST ....................................................................................... 7
2 FEATURES ........................................................................................ 8
2.1 SPECIFICATIONS ....................................................................................... 8
3 HARDWARE INSTALLATION .......................................................... 11
3.1 STEP-BY-STEP INSTALLATION ...............................................................11
STEP1 Installthe CPU.......................................................................... 12
STEP 2 Set Jumpers............................................................................. 13
STEP3 InstallDDR SDRAMSystem Memory........................................ 13
STEP 4Install InternalPeripherals inSystem Case ................................ 14
STEP5 Mountthe Mainboardon theComputer Chassis........................ 15
STEP6 ConnectFront-panel Switches/LEDs/Speaker/USB.................. 16
STEP 7 Connect IDE and Floppy Disk Drives........................................ 17
STEP8Connect Other InternalPeripherals............................................ 17
STEP9 ConnectPowerSupply ............................................................. 19
STEP10 InstallAdd-on Cardsin ExpansionSlots.................................. 19
STEP11 ConnectExternal Peripheralsto Back-panel ........................... 20
STEP 12 First Time System Boot Up ..................................................... 21
STEP13 InstallDriver &Software Components..................................... 22
TABLE OF CONTENTS

- 2 -
3.2 JUMPER SETTINGS ................................................................................. 23
JUMPER& CONNECTOR GUIDE......................................................... 24
Jumpers
Clear CMOS (JP1) ................................................................................ 27
BIOSWriteProtection (JP5) .................................................................. 27
CPU FREQ Setting (JP6) ...................................................................... 28
USBPower-On Setting(JP4)................................................................. 28
Back-Panel Connectors
PS/2Keyboard & PS/2Mouse Connectors............................................ 29
ParallelPortConnector.......................................................................... 29
COM1Port Connector ........................................................................... 29
VGAPortConnector.............................................................................. 29
MIDI/GAMEPortConnector ................................................................... 30
Line-OutPortConnector ........................................................................ 30
Line-InPortConnector ........................................................................... 30
Mic-InPortConnector ............................................................................ 30
LANPort Connector .............................................................................. 31
USB1/USB2Port Connectors................................................................ 31
Front-Panel Connectors
ATXPowerOn/Off SwitchConnector (PowerON) .................................. 32
EPMIConnector(EPMI)......................................................................... 32
GreenLED/Power LED Connector(GLED/PLED)................................. 33
HDD LED Connector (HLED) ................................................................ 33
Power LED Connector (PLED).............................................................. 34
HardwareReset Connector (RESET)..................................................... 34
Speaker Connector (SPEAKER) ........................................................... 35
ExtendedUSBConnectors (USB2/USB3) ............................................. 35

- 3 -
Internal Peripherals Connectors
EnhancedIDEand FloppyConnector .................................................... 36
Other Connectors
ATXPower SupplyConnector (ATX1&J10)........................................... 37
CoolingFAN Connectors for CPU FAN (FAN1), AGP FAN (FAN2),
SYSTEMFAN(FAN3) ........................................................................... 38
IRConnector(J3)................................................................................... 38
Wake-On-LANConnector(WOL1) ......................................................... 39
AudioCD_INConnector(J7/J8) ............................................................. 39
AudioAUX_IN Connector(J9) ............................................................... 39
Center_Out/BassConnector (J6) ......................................................... 40
Front-PanelMicrophoneand Line_outHeader(J5) ................................ 40
SPDIFExt. Header(J4).......................................................................... 40
3.3 SYSTEM MEMORY CONFIGURATION ..................................................... 41
InstallMemory........................................................................................ 41
UpgradeMemory................................................................................... 41
4 SOFTWARE UTILITY ...................................................................... 42
4.1 Mainboard CD Overview ......................................................................... 42
4.2 Install Mainboard Software ..................................................................... 43
4.3 Install VIA Chipset Driver ........................................................................ 44
4.4 Install Audio Driver .................................................................................. 45
4.5 Install LAN Driver(AK38N/AK39N only) .................................................. 46
4.6 Install USB 2.0 Driver............................................................................... 47
4.7 View the User's Manual ........................................................................... 48
5 BIOS SETUP ................................................................................... 49
5.1 ENTER THE BIOS ..................................................................................... 49

- 4 -
5.2 THE MAIN MENU ...................................................................................... 50
STANDARD CMOS FEATURES ............................................................... 52
ADVANCED BIOS FEATURES ................................................................. 55
ADVANCED CHIPSET FEATURES .......................................................... 59
INTEGRATEDPERIPHERALS .................................................................. 64
POWERMANAGEMENT SETUP.............................................................. 68
PNP/PCICONFIGURATION....................................................................... 72
PCHEALTH STATUS................................................................................ 74
FREQUENCYCONTROL .......................................................................... 75
LOAD FAIL-SAFE DEFAULTS .................................................................. 76
LOADOPTIMIZEDDEFAULTS ................................................................. 76
SETSUPERVISOR PASSWORD ............................................................. 77
SET USER PASSWORD........................................................................... 77
SAVE & EXIT SETUP................................................................................ 78
EXITWITHOUTSAVING ............................................................................ 78

- 5 -
Quick Reference
Hardware Installation >> Step-by-Step ................................................ Page 11
Jumper Settings >> A Closer Look ...................................................... Page 23
Software Utility >> How to Install.......................................................... Page 42
BIOS Setup >> How to Configure ......................................................... Page 49
About This Manual
For First-Time DIY System Builder ......................................................... Page 6
For Experienced DIY User's ................................................................... Page 6
For System Integrator ............................................................................. Page 6
WHAT's IN THE MANUAL

- 6 -
1 INTRODUCTION
1.1 To Different Users
First-Time DIY System Builder
Welcome to the DIY world! Building your own computer system is not as diffi-
cult as you may think. To make your first computer DIY experience successful,
right from the start, we have designed the Chapter 3 Hardware Installation
section in a step-by-step fashion for all the first-time DIY system builders. Prior
to installation, we also suggest you to read the whole manual carefully to gain a
complete understanding of your new AK38/N or AK39/N mainboard.
Experienced DIY User
Congratulate on your purchase of the AK38/N or AK39/N mainboard. You will
find that installing your new AK38/N or AK39/N mainboard is just easy. Bundled
with an array of onboard functions, the highly-integrated AK38/N or AK39/N
mainboard provides you with a total solution to build the most stable and reli-
able system. Refer to sections 3.2 Jumper Settings and Chapter 4 Software
Utility to find out how to get the best out of your new mainboard. Chapter 5
BIOS Setup also contains the relevant information on how to tune up your
system to achieve higher performance.
System Integrator
You have wisely chosen AK38/N or AK39/N to construct your system. AK38/N
incorporates all the state-of-the-art technology of the KT333 CF chipset from
VIA. AK39/N incorporates all the state-of-the-art technology of the KT400 chipset
from VIA. It integrates the most advanced functions you can find to date in a
compact ATX board. Refer to sections 3.2 Jumper Settings and Chapter 4
Software Utility for an in-depth view of system construction.

- 7 -
1.2 Item Checklist
Check all items with you AK38/N or AK39/N mainboard to make sure
nothing is missing. The complete package should include:
!One piece of AK38/N or AK39/N Mainboard
!One piece of Audio Cable (Central/Bass Channel)
!One piece of ATA 133/100/66133/100/66
133/100/66133/100/66
133/100/66 Ribbon Cable
!One piece of Floppy Ribbon Cable
!One piece of twin ports USB Cable (optional)(optional)
(optional)(optional)
(optional)
!AK38/N or AK39/N User's Manual
!One piece of Bundled CD-ROM with containing:
"AK38/N or AK39/N user's manual saved in PDF format
"VIA chipset driver
"Audio Device driver
"LAN driver (AK38N/AK39N only)(AK38N/AK39N only)
(AK38N/AK39N only)(AK38N/AK39N only)
(AK38N/AK39N only)
"USB2.0 driver
"Award Flashing Utility
PCI1 PCI2
PCI3 PCI4
PCI5
AJ1 J1
KB1
USB1
VT8235
0229CD TAIWAN
2IA3008651
AGP1
FDC
1
IDE2
IDE1
1
1
J3
IR
1
JP3
1
JP
1
1
JP
4
1
JP
5
1
JP
6
1
FAN2
1
FAN3
1
1FAN1
UC2000B2 0229 9371BDF
K TS
LITHIOMBATTERY
JAPANSTD
Cr2032
ATX1 ATXPWR
C
RESET
HLED
+-
+ -
+ -
GLED
SPEAKEREPMI
PWONPLED
1
J1 I2C
WOL
1
1
J4
SPDIFExt.
1
USB3
USB 5&6
1
USB2
USB 3&4
IT8705F 0115-BXA M3Q040
1
J5
J7
J8
J9
CD_IN
AUX_I N
1
1
1
J6
Center/Bass
1

- 8 -
AK38/N or AK39/N mainboard is carefully designed for the demanding PC user who
wants high performance and maximum intelligent features in a compact package.
2.1 Specifications
- CPU Support
Support Socket462 package CPU.
AMD Athlon Processor with 200/266 MHz FSB
AMD Duron Processor with 200 MHz FSB
AMD Athlon XP Processor with 266 MHz FSB
- Chipset
Features VIA KT400 N.B. and VT8235 S.B..(AK39/N)
Features VIA KT333 CF N.B. and VT8235 S.B..(AK38/N)
- Jumperless CPU Configuration
Soft-configuration FSB (The FSB speed is software configurable from 100MHz
to 200MHz by 1MHz step in the Frequency program.)
- On Board Multi-Channel Hardware Audio Controller
Support 5.1 speakers, C3DX positional audio in 6 CH speaker mode.
HRTF-3D positional audio, supporting Direct Sound 3D and A3D interface.
Legacy SBPRO compatible.
- Versatile Memory Support
Three 184-pin DIMM slots to support up to 3GB of PC1600, PC2100,
PC2700 or PC3200, compliant DDR SDRAM module.
- PCI Expansion Slots
Provides five 32-bit PCI slots.
- AGP Expansion Slot
Provides one 32-bit AGP slot which supports up to 4X/8X AGP
device.(AK39/N)
Provides one 32-bit AGP slot which supports up to 4X AGP device.(AK38/N)
(3.3V AGP card is not supported)
2 FEATURES

- 9 -
- I/O Interface
Provides a variety of I/O interfaces:
Ø1 x Floppy interface for 3.5-inch FDD with 720KB, 1.44MB, or 2.88MB
format or for 5.25-inch FDD with 360K or 1.2MB format.
Ø1 x PS/2 mouse connector.
Ø1 x PS/2 Keyboard connector.
Ø2 x DB9 Serial connectors 16550 UART compatible.
Ø1 x Infrared communication port.
(Serial port COM2 can also be redirected to an external IrDA Adapter
for wireless connection.)
Ø1 x DB25 Parallel port supporting Standard Parallel Port (SPP),
Enhanced Parallel Port (EPP), and Extended Capabilities Port (ECP)
data transmission schemes.
Ø1 x Line-Out (Front-Out) port.
Ø1 x Line-In port, shared with rear speaker output when multi-channel
audio is enabled.
Ø1 x Mic-In port.
Ø1 x MIDI/GAME port.
- 6 USB Ports Onboard
Ø4 x USB connectors on back-panel and one sets of dual USB ports
header on mid-board.
- PCI Bus Master IDE Controller Onboard
Two UltraDMA 133/100/66/33 Bus Master Dual-channel IDE ports provide
support to a maximum of four IDE devices (one Master and one Slave per chan-
nel). The IDE Bus implements the data transfer speed up to 133/100/66/33
MB/sec and also supports Enhanced PIO Modes.
80-pin Cable Backward Compatible Legacy ATAPI Devices, ATAPI IDE CD-
ROM, CD-R, CD-RW, and LS-120 Supports.
- ATX Power Supply Connector
ATX power supply unit can be connect to the onboard 20-pin ATX power
connector, supporting Suspend and Soft-On/Off by dual-function power
button.
The 4 ATX power include other 4-pin +12V ATX power connector.

- 10 -
- Advanced Configuration and Power Interface
Features four power saving modes: Snoop, Suspend to RAM, Suspend to
Disk, and Soft-Off. ACPI provides more efficient Energy Savings Features
controlled by your operating system that supports OS Direct Power Manage-
ment (OSPM) functionality.
- System BIOS
Provides licensed Award BIOS V6.0 PG on 2Mb Flash EEPROM and
supports Green PC, Desktop Management Interface (DMI).
- ATX Form Factor
System board conforms to the ATX specification.
Board dimension: 305mm x 190mm.
- Advanced Features
Ø Dual Function Power Button - The system can be in one of two states;
one is Suspend mode and the other is Soft-Off mode. Pushing the power
button for less than 4 seconds places the system into Suspend mode.
When the power button is pressed for longer than 4 seconds, the system
enters the Soft-Off mode.
Ø Wake-on-LAN (WOL) - The onboard WOL connector can be attached
to a network card that supports this function to wake up the system via
LAN.
Ø Modem Ring Power-On - The system can be powered on automatically
by the activation of modem ring.
- Intelligent Features
Ø Voltage Monitoring - Monitors various voltages of key elements, such as
the CPU, and other critical system voltage levels to ensure stable current
passing through mainboard components.
Ø Fan Status Monitoring - To prevent CPU from overheating, the CPU fan
is monitored for RPM and failure. (CPU Cooling FAN with RPM sensor is
required.)
Ø Temperature Monitoring - This item allows users to make sure whether
the CPU or system runs in a suitable temperature.

- 11 -
3 HARDWARE INSTALLATION
Before removing or installing any of these devices including CPU, DIMMs,
Add-On Cards, Cables, please make sure to unplug the onboard power
connector.
This section outlines how to install and configure your AK38/N or AK39/N mainboard.
Refer to the following mainboard layout to help you identify various jumpers, connectors,
slots, and ports. Then follow these steps to guide you through a quick and correct installa-
tion of your system.
3.1 Step-by-Step Installation
Accessories Of AK38/N or AK39/N
PCI1
PCI2
PCI3
PCI4
PCI5
AJ1
J1
KB1
USB1
VT 8235
0229CD TAIWAN
2IA3008651
AGP1
F D
C
1
I D
E
2
I D
E
1
11
J 3IR
1
JP3
1
JP1
1
JP4
1
JP5
1
JP6
1
FAN2
1
FAN3
1
1
F A
N
1
U C20 00B 2
0 22 9
9 37 1 BDF
K
T
S
L
IT
H
I O
M
B
A
T
T
E
R
Y
J A
P
A
N
S
T
D
C
r2 0 32
A
T X
1
A T X P WR
C
RESET HLED
+ -
+-
+-
GLED
SPEAKER EPMI
PWON
PLED
1
J1
I2C
WOL
1
1
J4
SPDIF Ext.
1
USB3
USB 5&6
1
USB2
USB 3&4
IT8705F
0115-BXA
M3Q040
1
J5
J 7
J 8
J 9
C
D
_
I
N
A U
X_
I
N
1
1
1
J 6
C
e
n
t
e
r /
B a
s s
1
PS2 Keyboard/
PS/2 Mouse Connectors
LAN & USB Connectors
Socket 462
Serial Port Connector
(COM1)
Serial Port Connector
(COM2)
Parallel Connector
USB Power - JP4
VIA KT 400 Chipset(AK39/N)/
VIA KT 333CF Chipset(AK38/N)
IR Header - J3
BIOS - JP5
CPU FREQ - JP6
USB Power - JP3
SPDIF Ext. Headers - J4
Center/Bass - J6
CD_IN - J7/J8
AUX_IN - J9
AGP Slot
Front Audio Connector - J5
Five PCI Slots
ATX Power Connector
ATX 12V Power Connector
CPU Overheat - LED3
Line-In/Line-Out/Mic-In
Game/MIDI Connectors
F
l
o p p y
C
on n e
c
t
or
T h re
e
1 84 -
p i
n
D I
M
M
s l
o t
s
Tw o
I
D E
C
o n ne
c
t
o rs
FAN1
Front Panel Header - J1
C
l
e
a
r
C
M
O
S
-
J
P
1
Wake -On-LAN Connector - WOL1
Extended one USB Connector
-
USB2/USB3
FAN2
FAN3
V
I
A
V
T
8 2 3 5
C
hi
ps e
t

- 12 -
Step 1
Install the CPU:
1. Locate the CPU ZIF (Zero Insertion Force) socket on the upper-right
sector of your mainboard (between the back-panel connectors and the
DIMM memory slots).
2. Pull the CPU ZIF socket lever slightly sideways away from the socket
to unlock the lever, and then bring it to an upwardly vertical position.
3. Place your AMD 462 Athlon/Duron processor in the socket A. Note that the
CPU's edges have been purposely designed non-symmetrically to prevent
from inserting the processor in the wrong direction. The following diagram
demonstrates the correct placement of the CPU in the ZIF socket. You can
see that the two blunt-edged corners should face towards the socket-lever.
4. Slightly push the AMD 462 Athlon/Duron processor into the socket without
applying excessive force while making sure there is no gap between CPU
and socket. Then lower the socket-lever all the way down to its horizontal
position and lock it to secure the CPU in place.
5. The AMD 462 Athlon/Duron processor requires a set of heatsink/fan to
ensure proper cooling of the processor. If heatsink/fan have not been
already mounted on your CPU, you must purchase the heatsink/fan sepa-
rately and have it installed. Plug the cable throught the heatsink/fan in the
CPU fan power connector located nearby. Note that there are several types
of CPU fan connectors. Normally, if your mainboard supports the hard
ware monitoring function, a 3-pin fan power connector should allow your
system to detect the CPU fan's speed . The CPU fan can also run with a 2-
pin fan power connector, however, detection of CPU fan's speed is not sup
ported. Another type of CPU fan may feature a large 4-pin fan power con-
nector, which does not support CPU fan's speed detection and must be di-
rectly connected to the system's power supply unit. Please refer to the fol-
lowing diagram.
Notch
AMD CPU
SOCKET462
AS
S
EM
B
L
ED
I N
M
AL
A YS
I A
Lever
Blank
Blank
SOCKET462

- 13 -
Step 2.
Set Jumpers
This mainboard is jumperless! The default jumper settings have been set for
the common usage standard of this mainboard. Therefore, you do not need
to reset the jumpers unless you require special adjustments as in any of the
following cases:
1. Clear CMOS
2. BIOS Boot block Protection
3. CPU FREQ
4. USB Power
For first-time DIY system builders, we recommend that you do not change the
default jumper settings if you are not totally familiar with mainboard configu-
ration procedures. The factory-set default settings are tuned for optimum
system performance. For the advanced users who wish to customize their
system, section 3.2 Jumper Settings will provide detailed information on how
to configure your mainboard manually.
Step 3.
Install DDR SDRAM System Memory
To install memory, insert DDR SDRAM memory module(s) in DIMM slot(s).
Note that DDR SDRAM modules are directional and will not go in the DIMM
slots unless properly oriented. After the module is fully inserted into the
DIMM slots, lift the clips of both sides of the DIMM slot to lock the module in
place.
DDR SDRAM

- 14 -
Step 4
Install Internal Peripherals in System Case
Before you install and connect the mainboard into your system case, we
recommend that you first assemble all the internal peripheral devices into the
computer housing, including but not limited to the hard disk drive (IDE
/HDD), floppy disk drive (FDD), CD-ROM drive, and ATX power supply unit.
This will greatly facilitate in making the connections to the mainboard de-
scribed below.
To install IDE & FDD drives, follow this procedure:
1. Set the required jumpers on board each device according to the
instructions provided by the manufacturer. (IDE devices, HDD, and
CD-ROM have to set jumpers on Master or Slave mode depending
on your willing to install more than one device for each kind.)
2. Connect IDE cable and FDD cable on the back-panel of the internal
peripheral devices to the corresponding headers on board. Note that the
cable should be oriented with its colored stripe (usually in red or magenta)
connected to pin#1 both on the mainboard IDE or FDD connector and on
the device as well.
3. Connect an available power cable through your system power supply unit
to the back-panel of each peripheral device. Note that the power cable
is directional and cannot fit in if not properly positioned.

- 15 -
Step 5
Mount the Mainboard on the Computer Chassis
1. You may find that there are a lot of different mounting hole positions
both on your computer chassis and on the mainboard. To choose a
correct mounting hole, the key point is to keep the back-panel of the
mainboard in a close fit with your system case, as shown below.
2. After deciding on the proper mounting holes, position the studs between
the frame of chassis and the mainboard. The studs are used to fix the
mainboard and to keep a certain distance between the system chassis
and the mainboard, in order to avoid any electrical short between the
board and the metal frame of chassis. (If your computer case is already
equipped with mounting studs, you will need to tighten screws to
attach the mainboard.)
Note: In most computer housings, you will be able to find 4 or more
attachment points to install mounting studs and fix the mainboard.
If there aren't enough matching holes, then make sure to install at
least 4 mounting studs to ensure proper attachment of the
mainboard.

- 16 -
Step 6
Connect Front-Panel Switches/LEDs/Speaker/USB connectors
You can find there are several different cables already existing in the system
case and originating from the computer's front-panel devices (HDD LED,
Power LED, Reset Switch, PC Speaker, or USB devices etc.). These cables
serve to connect the front-panel switches, LEDs, and USB connectors to the
mainboard's front-panel connectors group (J1, USB2 and USB3), as shown
below.
1. HDD_LED (HLED)
2. Green_LED (GLED)
3. Hardware Reset Switch (RESET)
4. ATX Soft Power On/Off (PWON)
5. EPMI (Hardware System Management Interface)
6. Power_LED (PLED)
7. PC Speaker (SPEAKER)
8. I2C
9. Extended two USB Header
1
1
3
6
57
82
4
+5V USBD1- USBD1+ GND N/A
+5V
USBD0-
USBD0+
GND
KEY
1
USB port 4 / 6
USB port 3 / 5
9
RESET HLED
+ -
+-
+-
GLED
SPEAKER EPMI
PWON
PLED
1
J1 I2C
USB 3&4 USB 5&6
USB2 USB3
11

- 17 -
Step 7
Connect IDE and Floppy Disk Drives
1. IDE cable connector
2. FDD cable connector
Step 8
Connect Other Internal Peripherals
1. CD_IN, AUX_IN, and Bass/Center_Out Headers
1
I
D
E
2
1
I
D
E
1
1
FD D 1
1
J7
J6
J8 J9
CD_IN
CD_IN AUX_IN
Center/BASS
11
1
1