User Manual
KPC Series
i-Tech Company LLC
TOLL FREE: (888) 483-2418 • EMAIL: info@i-techcompany.com • WEB: www.i-techcompany.com
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Safety
IMPORTANT SAFETY INSTRUCTIONS
1. To disconnect the machine from the electrial power supply, turn off the power
switch and remove the power cord plug from the wall socket. The wall socket
must be easily accessible and in close proximity to the machine.
2. Read these instructions carefully. Save these instructions for future reference.
3. Follow all warnings and instructions marked on the product.
4. Do not use this product near water.
5. Do not place this product on an unstable cart,stand,or table.The product may
fall, causing serious damage to the product.
6. Slots and openings in the cabinet and the back or bottom are provided for
ventilation;to ensure reliable operation of the product and to protect it from
overheating. These openings must not be blocked or covered.The openings
should never be blocked by placing the product on a bed, sofa, rug, or other
similar surface.This product should never be placed near or over a radiator or
heat register,or in a built-in installation unless proper ventilation is provided.
7. This product should be operated from the type of power indicated on the
marking label.If you are not sure of the type of power available, consult your
dealer or local power company.
8. Do not allow anything to rest on the power cord. Do not locate this product
where persons will walk on the cord.
9. Never push objects of any kind into this product through cabinet slots as they
may touch dangerous voltage points or short out parts that could result in a
fire or electric shock. Never spill liquid of any kind on the product.
CE MARK
This device complies with the requirements of the EEC directive
2004/08/EC with regard to “Electromagnetic compatibility” and
2006/95/EC “Low Voltage Directive”.
FCC
This device complies with part 15 of the FCC rules. Operation is subject to the
following two conditions:
(1) This device may not cause harmful interference.
(2) This device must accept any interference received, including interference that
may cause undesired operation.
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CAUTION ON LITHIUM BATTERIES
There is a danger of explosion if the battery is replaced incorrectly. Replace only
with the same or equivalent type recommended by the manufacturer. Discard
used batteries according to the manufacturer’s instructions.
LEGISLATION AND WEEE SYMBOL
2002/96/EC Waste Electrical and Electronic Equipment Directive on the
treatment, collection, recycling and disposal of electric and electronic
devices and their components.
The crossed dustbin symbol on the device means that it should not be disposed of
with other household wastes at the end of its working life. Instead, the device
should be taken to the waste collection centers for activation of the treatment,
collection, recycling and disposal procedure.
To prevent possible harm to the environment or human health from uncontrolled
waste disposal, please separate this from other types of wastes and recycle it
responsibly to promote the sustainable reuse of material resources.
Household users should contact either the retailer where they purchased this
product, or their local government office, for details of where and how they can
take this item for environmentally safe recycling.
Business users should contact their supplier and check the terms and conditions
of the purchase contract.
This product should not be mixed with other commercial wastes for disposal.
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Table of Contents
1. Item Checklist..............................................................................................5
2. System View ................................................................................................ 6
2.1. Front View...............................................................................................6
2.1. Rear View................................................................................................6
2.2. I/O View 7
3. Drivers Installation...................................................................................... 8
3.1. Driver List................................................................................................8
3.2. Chipset Driver Installation........................................................................8
3.2. USB 2.0 Driver Installation ....................................................................10
3.3. VGA Driver Installation..........................................................................13
3.4. ELO Touch Driver Installation................................................................15
3.5. POSTouch Driver Installation ................................................................18
3.6. 10/100Mb LAN Driver Installation..........................................................20
4. System Disassembly................................................................................. 21
4.1. Replacing the Slimline HDD..................................................................21
4.2. Opening the Rear Cover.......................................................................22
4.3. Replace Heatsink /Fan & CPU..............................................................23
4.4. Replacing the Touch Board...................................................................24
4.5. Replacing the Inverter Board.................................................................24
4.6. Replacing the Speakers........................................................................25
4.7. Replacing the Motherboard...................................................................25
5. Specification.............................................................................................. 27
6. Jumper Settings........................................................................................ 29
7. BIOS Settings............................................................................................ 36
8. Airflow Requirements................................................................................... 39
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1. Item Checklist
Take the system unit out of the carton. Remove the unit from the carton by holding
it by the foam inserts:
a. Driver CD b. Com port Cable
c. Power Cable d. Power Adapter
e. System
6
2. System View
2.1. Front View
2.1. Rear View
Touch Screen
HDD Cover
I/O Ports
VESA
Mount
7
2.2. I/O View
LAN
Cash
Drawer
Line in
Line
out
USB
Power
Switch
P
arallel
8
3. Drivers Installation
3.1. Driver List
Folder/File File Description
<CD>:\K790_B78\B78.htm B78 Driver List
<CD>:\COMMON\INTEL\Chipset Chipset Driver
<CD>:\COMMON\INTEL\USB 20 USB 2.0 Driver
<CD>:\COMMON\INTEL\VGA\i85x VGA Driver
<CD>:\COMMON\Elo_Touch\Win2K_XP\SAW\V4.30 ELO Touch Driver
<CD>:\COMMON\POS_Touch POSTouch Driver
<CD>:\COMMON\Lan_driver\R8139_810x 10/100Mb LAN Driver
-The following procedures are for Windows 2000/XP, other platforms are similar.
3.2. Chipset Driver Installation
a. Double click “infinst_enu_6.0.1.1007”
on the My computer window.
b. Click the “Next” button on the
Welcome window.
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c. Click the “Yes” button on the License
Agreement window.
d. Click the ”Next” button on the Readme
Information window.
e. Click the “Finish” button and restart
your system.
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3.2. USB 2.0 Driver Installation
OS Requirements
OS USB 2.0 requirements
Windows
XP
USB 2.0 drivers are provided in Service Pack 1 (SP1) for Windows
XP, which is available through Windows Update.
Windows
2000
USB 2.0 drivers are available through Windows Update or Service
Pack 4.
Windows
98SE/Me
USB 2.0 drivers are available on the Intel developer site.
Windows
98 (Retail)
Developers and OEMs should contact Orange Ware. For end-users,
if your device does not ship with Windows 98 drivers, contact your
device or system manufacturer. If USB 2.0 drivers are not available,
your device will operate at USB 1.1 speeds
Linux
USB 2.0 support is available in kernel 2.4.19 or later development
kernels, or in the 2.4.19 or later production kernel. More information.
a. Right click My Computer on the
desktop and select “properties”
b. Select “Hardware”à”Device Manager”
on system properties.
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c. Select ”Other Devices” à “Universal Serial Bus (USB) Controller” à”Properties” on
Device Manager.
d. Select “Device”à “Update Driver…”. e. Click the ”Next” button on the welcome
window.
f. Select “Search for a suitable…”and
click the “Next” button on the Install
Hardware Device Drivers window.
g. Select “Specify a location” and click the
“Next” button on the Locate Driver Files
window.
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h. Press “Browse” to select the driver and
then click the “OK” button to go to the
next page.
i. Click the “Next” button on the Driver
Files Search Results window.
j. Click the “Finish” button to complete
this process.
k. Finished.
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3.3. VGA Driver Installation
a. Click the “Win2K_XP” on the My
Computer window.
b. Click the “v14.19.50” on the My
Computer window.
c. Select “win2K_xp141950” on the
v14.19.50 window.
d. Click the “Next” button on the Intel(R)
Chipset Graphics Driver SoftwareInstallShield(R) Wizard window.
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e. Click the “Next” button on the Intel(R)
Graphics Media Accelerator Driver
window.
f. Click the “Yes” button on the Intel(R)
Graphics Media Accelerator Driver
window.
g. Select “Yes, I want to restart my
computer now” and click the “Finish”
button on the Intel(R) Graphics Media
Accelerator Driver window.
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3.4. ELO Touch Driver Installation
a. Click ”sw500930” on the My computer
window.
b. Click the “OK” button on the Welcome
window .
c. Click the ”Unzip” button on the WinZip
Self-Extractor window.
d. Select “Install Serial Touchscreen
Drivers” and then click the “Next”
button
on the Welcome window.
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e. Click the “Yes” button on the License
Agreement window.
f. Click the “Next” button on the on the
“Select the COM ports…” window.
g. Select “COM5” and click the “Next”
button on the Choose the COM ports…
window.
h. Click the “Next” button on the You have
selected the COM ports…window.
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i. Click the “Finish” button on the Setup
Complete window
j. Click the “Yes” button and restart your
system.
k. After the computer has restarted, click
“Align” on the Elo Touchscreen
Properties window.
l. Follow the instructions on the screen to
calibrate the touch panel.
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3.5. POSTouch Driver Installation
a. Double click the ”Setup” on the “My
Computer” window.
b. Click the “Next“ button on the
“Welcome window”.
c. Click the ”next” button on the
“Wellcome” window.
d. Select “Install the software
automatically” and click the ”Next”
button on the “URTC1000” window
e. Click the “Next” button on the “
License
Agreement” window.
f. Click the “Next” button on the “Install
Folder” window.
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g. Click the “Next “ button on the
“Shortcut Folder” window.
h. Select the “USB” and click the ”Next”
button on the “Options” window.
i. Click the :Next” button on the “Ready
to Install” window
j. Click the “Continue Anyway” button on
the URTC-1000 window
k. Click the “Finish” button on the
“Installation Successful” window .
l. Click the “OK” button to reboot your
computer
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3.6. 10/100Mb LAN Driver Installation
a. Click “ Win9X,ME. 2K.XP” b. Double click ”V616(20040809)” on the
My Computer window.
c. Double click ”Setup” on the My
Computer window.
d. Click the “Finish” button on the
Maintenance Complete window.
e. Click the ”OK” button and restart your
system.
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4. System Disassembly
4.1. Replacing the Slimline HDD
a. Remove the screw (1). b. Remove the HDD cover.
c. Pull the HDD front. d. Disconnect the cable (1) to replace the
HDD.
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4.2. Opening the Rear Cover
To replace the heatsink / fan and CPU, please first follow the steps in chapter 4.1.
a. Remove the screws (11) b. Remove the rear cover
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4.3. Replace Heatsink /Fan & CPU
To replace the heatsink/fan and CPU, please first follow the steps in chapter 4.1
and 4.2.
a. Disconnect the fan cable (1) and loosen
the screws (4) to remove the heatsink /
fan
b. Turn the socket lock screw 180 degrees
to unlock it and remove the CPU.
c. Remove the screws (2) to remove the
fan tunnel.
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4.4. Replacing the Touch Board
To replace the touch board, please first follow the steps in chapter 4.1 and 4.2
a. Remove the screws (2) . b. Remove the screws (2) to replace the
touch board.
4.5. Replacing the Inverter Board
To replace the inverter board, please first follow the steps in chapter 4.2
c. Disconnect the cables (5) . d. Remove the screws (2) to remove the
inverter board.
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4.6. Replacing the Speakers
To replace the speaker, please first follow the steps in chapter 4.1 and 4.2
a. Disconnect the cable (1) b. Remove the screws (4) to replace the
speakers.
4.7. Replacing the Motherboard
To replace the motherboard, please first follow the steps in chapter 4.1, 4.2, 4.3(a)
a. Disconnect the cables (5): touch cable,
inverter cable , LCD interface cable,
VGA cable, and speaker cable.
b. Remove the hex screws (2).
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c. Remove the screws (7) and slide the
motherboard in the direction as shown
by the arrow to remove it.
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Main Name KPC1200 KPC1500 KPC1700 KPC1900
Mainboard B78
CPU Support Intel Celeron M 1.3 / 1.5GHz; Pentium M 1.8GHz;
Chipset Intel 852GM and ICH4 FSB 400 Mhz
System Memory 2 x DDR SO-DIMM slot, up to 2GM
Graphic Memory Shared system memory 8 ~ 64MB
BIOS AWARD BIOS
LCD Touch Panel
LCD Size 12” TFT LCD
15” TFT
LCD
17” TFT
LCD
19” TFT
LCD
Brightness 400nits 350nits 300nits 300nits
Maximal Resolution 800 x 600 1024 x 768 1280 x 1024
Touch Screen Type
Resistive touch
Resistive type/, Intelligent SAW touch
Storage
HDD 2.5” Slim HDD bay
Flash Memory Optional Compact Flash memory (without HDD)
Expansion
Mini-PCI 1
External I/O Ports
USB 2.0 4
Serial / COM
4 x RJ-45 (COM1 standard RS-232; COM2 RS232 / 422 /
485 selectable by Jumper; COM3 & COM4 pin 9 with 5V
or 12V powered by Jumper
Parallel 1 x DB/ 25F
LAN (10 / 100) 1 x RJ45
Cash Drawer 1 x RJ-11 (12V or 24 V)
DC Jack 1 x latch type
Audio Jack 1 x Line-out, 1 x Line-in
2nd VGA 1 X DB 15F
Internal Interface
USB 2.0 2
5. Specification
Power
Power Adapter DC 19V, 90W
Audio
Speaker
1x3 W Speaker
2 x 3W speakers
Environment
EMC & Safety FCC, Class A, CE, LVD
Operating
Temperature
O°C~ 40°C (32°F~ 104°F)
Storage Temperature
-20°C ~ 60°C (-4°F~ 140°F)
Operating Humidity 5% ~ 95% RH non condensing
Storage Humidity 5% ~ 95% RH non condensing
Dust & Water Proof NEMA 3 / IP 55
KPC1200: 330.8 x 265.3 x 55 mm
KPC1500: 385.9 x 307.4 x 60 mm
KPC1700: 410.5 x 344.5 x 60 mm
Dimension
(W x D x H mm/inch)
KPC1900: 449.2 x 374.2 x 60 mm
KPC1200: N.W. 4.7 kg/ 10.4Ibs
KPC1500: N.W. 5.8 kg/ 12.8 lbs
KPC1700: N.W. 7.6 kg/ 16.7 lbs
Weight
KPC1900: N.W. 9.0 kg/ 19.8 lbs
Mounting 100mm x 100mm Standard VESA
OS Support Win XP Pro, XPe, WEPOS, Windows NT 4.0 /
2000
- This specification is subject to change without prior notice.
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6. Jumper Settings
B78 Motherboard
JP2
PWR1
RJ45_1
RJ11_1
CN2 CN1
RJ45_2
USB2 USB1
PRN1
SW1
PCI1
IDE1 DIMM1
CPU1
CN19
CN20
CN15
CN21
CN13
CN18
JP11
JP4
JP9
JP10 JP3 JP1
JP5
JP7
JP6
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1. Connectors
Connector Function
Connector Function
CN1 Audio Line Out
IED1 Primary IDE Connector
CN2 Audio Line In
PRN1 Parallel Port
CN13 COM5 for Touch
PWR1 +19V Power Adapter
CN15 CPU FAN Connector
RJ11_1 Cash Drawer Connector
CN16 Hardware Reset
RJ45_1 LAN (On Board)
CN18 USB2
RJ45_2 COM1, COM2, COM3,
COM4
CN19 LCD Interface
Connector
USB1 USB3, USB4
CN20 Inverter Connector
USB2 USB5, USB6
CN21 Card Reader Connector
2. Jumper Settings
1. CMOS Operation Mode
Function JP8
CMOS Normal
◎N/C
CMOS Reset 1-2
To clear the CMOS:
1) Remove AC power from the unit.
2) Open the cabinet.
3) Change the JP8 jumper setting from N/C to 1-2.
4) Wait 1 minute.
5) Change the JP8 jumper setting back to N/C.
6) Close the cabinet.
7) Apply AC power and continue.
2. Power Mode Setting
Function JP6
ATX Power
◎N/C
AT Power 1-2
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3. Cash Drawer Power Setting
Voltage JP4
+12V
◎1-2
+24V 3-4
+19V 5-6
4. COM3 & COM 4 Power Setting
Function JP3
COM3 PIN10_RI
◎1-2
COM3 PIN10_+5V 3-4
COM3 PIN10_+12V 5-6
COM4 PIN10_RI
◎7-8
COM4 PIN10_+5V 9-10
COM4 PIN10_+12V 11-12
5. Card Reader Setting
Function
◎Docking
On Board
JP11 (1-2) N/C 1-2
JP11 (3-4) N/C 3-4
6. LCD ID Setting
LVDS JP7 Panel
Number
Resolution
Bits Channel
1-2 3-4 5-6 7-8
0 640 x 480 18 Single SHORT
SHORT
SHORT
SHORT
1 800 x 600 18 Single
SHORT
SHORT
SHORT
OPEN
2 1024 x 768 18 Single
SHORT
SHORT
OPEN
SHORT
3 1280 x 1024
24 Dual
SHORT
SHORT
OPEN OPEN
4 1024 x 768 24 Single
SHORT
OPEN
SHORT
SHORT
5 800 x 600 24 Single SHORT OPEN
SHORT
OPEN
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7. COM2 RS232 / 485 / 422 Setting
Function
◎RS232
RS485 RS422
JP9 (1-2) V
JP9 (3-4) V
JP9 (4-6) V
JP9 (5-7) V
JP9 (7-8) V
JP9 (9-10) V
JP10 (1-2) V
JP10 (3-4) V
JP10 (5-6) V
JP10 (7-8) V
JP10 (9-10) V
JP10 (11-12) V
Note: OPEN
SHORT
3. Connectors Pin Definition
CN4: Speaker & MIC Connector
Pin 1 AMP_ORL
Pin 2 GND
Pin 3 GND
Pin 4 AMP_ORR
Pin 5 GND
Pin 6 MIC1
CN9: CD-IN Connector
Pin 1 CDIN_L
Pin 2 CDIN_REF
Pin 3 CDIN_R
Pin 4 CDIN_REF
CN11: Power Connector For 3.5” HDD
Pin 1 +12V
Pin 2 GND
Pin 3 GND
Pin 4 +5V
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CN13: COM5
Pin 1 DCD#
Pin 2 RX#
Pin 3 TX#
Pin 4 DTR#
Pin 5 GND
Pin 6 DSR#
Pin 7 RTS#
Pin 8 CTS#
Pin 9 RI
Pin 10 +5V
CN15: CPU FAN Connector
Pin 1 +5V
Pin 2 Feedback
Pin 3 GND
CN18: USB 2
Pin 1 +5V_USB1
Pin 2 USB20_R_P1
Pin 3 USB20_R_P1+
Pin 4 GND
CN19: LVDS Interface
Pin 1 LVDS_B0+
Pin 2 LVDS_A3+
Pin 3 LVDS_B0-
Pin 4 LVDS_A3-
Pin 5 GND
Pin 6 GND
Pin 7 LVDS_B1+
Pin 8 LVDS_CLKA+
Pin 9 LVDS_B1-
Pin 10 LVDS_CLKA-
Pin 11 GND
Pin 12 GND
Pin 13 LVDS_B2+
Pin 14 LVDS_A2+
Pin 15 LVDS_B2-
Pin 16 LVDS_A2-
Pin 17 GND
Pin 18 GND
Pin 19 LVDS_B3+
Pin 20 LVDS_A1+
Pin 21 LVDS_B3-
Pin 22 LVDS_A1-
Pin 23 GND
Pin 24 GND
Pin 25 LVDS_CLKB+
Pin 26 LVDS_A0+
Pin 27 LVDS_CLKB-
Pin 28 LVDS_A0-
Pin 29 GND
Pin 30 GND
Pin 31 +5V_LCDVDD
Pin 32 +3.3V_LCDVDD
Pin 33 +5V_LCDVDD
Pin 34 +3.3V_LCDVDD
Pin 35 +5V_LCDVDD
Pin 36 +3.3V_LCDVDD
Pin 37 +5V_LCDVDD
Pin 38 +3.3V_LCDVDD
Pin 39 +5V_LCDVDD
Pin 40 +3.3V_LCDVDD
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CN20: Inverter Connector
Pin 1 +12V_INV
Pin 2 +12V_INV
Pin 3 +12V_INV
Pin 4 +12V_INV
Pin 5 Back-Light
Enable
Pin 6 N/C
Pin 7 N/C
Pin 8 Back-Light
Enable
Pin 9 GND
Pin 10 GND
Pin 11 GND
Pin 12 GND
CN21: POS Card Reader Connector
Pin 1 +5V
Pin 2 +5V
Pin 3 KDATA_SIO_TO_MSR
Pin 4 KDATA_SIO_TO_MSR
Pin 5 KDATA_MSR_TO_GFINGER
Pin 6 KCLK_MSR_TO_GHINGER
Pin 7 RS232_6_RX#
Pin 8 RS232_6_TX#
Pin 9 RS232_6_CTS#
Pin 10 RS232_6_RTS#
Pin 11 KB_EN
Pin 12 GND
Pin 13 USB20_MSR_P0+
Pin 14 USB20_MSR_P0-
Pin 15 GND
CN22: System FAN Connector
Pin 1 +5V
Pin 2 Feedback
Pin 3 GND
CN23: IrDA Connector
Pin 1 +5V
Pin 2 IRDA_RX
Pin 3 IRDA_TX
Pin 4 GND
RJ45_2: COM1, COM2, COM3, COM4
Pin 1 N/C
Pin 2 RS232_1_DCD#
Pin 3 RS232_1_DSR#
Pin 4 RS232_1_RX#
Pin 5 RS232_1_RTS#
Pin 6 RS232_1_TX#
Pin 7 RS232_1_CTS#
Pin 8 RS232_1_DTR#
Pin 9 GND
Pin 10 RS232_1_RI
Pin 11 N/C
Pin 12 RS232_2_DCD#
Pin 13 RS232_2_DSR#
Pin 14 RS232_2_RX#
Pin 15 RS232_2_RTS#
Pin 16 RS232_2_TX#
Pin 17 RS232_2_CTS#
Pin 18 RS232_2_DTR#
Pin 19 GND
Pin 20 RS232_2_RI
35
RJ45_2: COM1, COM2, COM3, COM4
Pin 21 N/C
Pin 22 RS232_3_DCD#
Pin 23 RS232_3_DSR#
Pin 24 RS232_3_RX#
Pin 25 RS232_3_RTS#
Pin 26 RS232_3_TX#
Pin 27 RS232_3_CTS#
Pin 28 RS232_3_DTR#
Pin 29 GND
Pin 30 RS232_3_RI
Pin 31 N/C
Pin 32 RS232_4_DCD#
Pin 33 RS232_4_DSR#
Pin 34 RS232_4_RX#
Pin 35 RS232_4_RTS#
Pin 36 RS232_4_TX#
Pin 37 RS232_4_CTS#
Pin 38 RS232_4_DTR#
Pin 39 GND
Pin 40 RS232_4_RI
JP1: VGA Port
Pin 1 GND
Pin 2 CRT_R
Pin 3 GND
Pin 4 CRT_G
Pin 5 GND
Pin 6 CRT_B
Pin 7 GND
Pin 8 CRT_HSYNC
Pin 9 GND
Pin 10 CRT_VSYNC
JP2: VGA Power
Pin 1 +12
Pin 2 GND
Pin 3 +12
Pin 4 GND
36
7. BIOS Settings
1. BIOS Setup Utility
The BIOS setup defines how the system is configured. You need to run this
program the first time you configure this product. You may need to run it again if
you change the configuration.
You need to connect a PC keyboard to the keyboard connector to run the BIOS
setup utility.
2. Starting the BIOS Setup
1. Turn on or reboot this product.
2. Press the DEL key immediately after the product is turned on, or press the
DEL key when the following message is displayed during POST (the Power
on Self-Test).
Press DEL to enter SETUP.
3. The main menu of the BIOS setup is displayed.
4. If the supervisor password is set, you must enter it here.
3. When a Problem Occurs
If, after making and saving system changes with the Setup utility, you find that
this product no longer boots, start the BIOS setup and execute the following.
Load Optimized Defaults
4. BIOS Main Menu
When the BIOS Main Menu is displayed, the following items can be selected.
Use the arrow keys to select items and the Enter key to accept and enter the
sub-menu.
Note: The BIOS menu below is from B78 BIOS version. If you have a different
BIOS version, the contents of the menu may different.
37
Standard CMOS Features
Use this menu for basic system configuration.
Advanced BIOS Features
Use this menu to set the Advanced Features available on the system.
Advanced Chipset Features
Use this menu to change the values in the chipset registers and optimize the
system’s performance.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
Power Management setup
Use this menu to specify your settings for power management.
PnP/PCI Configurations
This entry appears if your system supports Plug and Play and PCI Configuration.
PC health status
Displays CPU, System Temperature, Fan Speed, and System Voltages Value.
Load Optimized Defaults
Use this menu to load the BIOS default values, i.e., factory settings for optimal
performance system operations. While Award has designed the custom BIOS to
maximize performance, the factory has the option to change these defaults to
meet their needs.
38
Set Supervisor Password
Enables you to change, set, or disable the supervisor or user password.
Set Password
Change, set, or disable the password. It allows you to limit access to the system
and to the setup, or just to the setup.
Save & exit setup
Save CMOS value changes to CMOS and exits setup.
Exit without saving
Ignores all CMOS value changes and exits setup.
39
8. Airflow Requirements
Do not block the air vents on the CPU. These vents are necessary for cooling
purposes.
Do not place the CPU in an enclosed area where sufficient ventilation is not
available. Leave at least 150 mm (6 in.) of clearance on the sides where air vents
are located.
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