This equipment has been tested and found to comply with the limits of 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 instructions, may
cause harmful interference to radio communications. There is no guarantee
that interference will not occur in a particular installation.
The vendor makes no representations or warranties with respect to the
contents here and specially disclaims any implied warranties of merchantability
or fitness for any purpose. Further the vendor reserves the right to revise this
publication and to make changes to the contents here without obligation to
notify any party beforehand.
Duplication of this publication, in part or in whole, is not allowed without first
obtaining the vendor’s approval in writing.
The content of this user’s manual is subject to be changed without notice and
we will not be responsible for any mistakes found in this user’s manual. All the
brand and product names are trademarks of their respective companies.
Chip: ALC655
Support 6 channels.
Supports S/PDIF out and S/PDIF-in (optional) function.
Compliant with AC’97 Versi on 2.3 specification.
2
K8T890-A9
Internal On-board I/O Connectors and Headers
1 front panel header supports front panel facilities.
1 CD-in connector supports 1 CD-ROM audio-in device.
1 front audio header supports front panel audio function.
1 S/PDIF-Out connector supports digital audio -out fun ction.
1 S/PDIF-In connector supports digital audio-in function
(optional).
1 chassis open header supports PC case-opened warning
function.
1 FDD connector supports 2 Floppy drives with 360K, 720K,
1.2M, 1.44M and 2.88Mbytes.
2 IDE connectors support 4 hard disk devices.
2 Serial ATA connectors support 2 SATA devices.
2 USB headers support 4 USB 2.0 ports at front panel.
1 Wake-up on LAN header (optional).
Back Panel I/O Connectors
4 USB 2.0 ports.
1 Serial port.
1 Printer port.
1 RJ-45 LAN jack.
1 PS/2 Mouse port.
1 PS/2 Keyboard port.
1 Vertical audio port incl uding 1 line-in connector, 1 Line out
connector, an d 1 MIC in connector.
PS/2
Mouse
PS/2
Keyboard
COM1
Printer port
COM2
(optional)
LAN
Line In/
Surround
Line Out
Mic In 1/
USB x2
USB x2
Bass/Center
3
K8T890-A9
B. BIOS & Software
BIOS
Award legal BIOS.
Supports APM1.2.
Supports ACPI.
Supports USB Function.
Software
Supports 9th TouchTM, FlasherTM, WinFlasherTM, and
Warpspeeder
TM
.
1.2 PACKAGE LIST
FDD cable x1
HDD cable x1
User’s Manual x1
Fully Setup Driver CD x1
Rear I/O panel for ATX case x1
USB 2.0 cable x1 (optional)
Serial ATA cable x2 (optional)
S/PDIF out cable x1 (optional)
4
K8T890-A9
V
1.3 LAYOUT AND COMPONENTS
JKBMS1
JKBV1
JCOM1 JCOM2
DIMM1
DIMM2
DIMM4
DIMM3
J1(optional)
JPRNT1
(optional)
JATXPWR 2
JUSB3
JCFAN1
JUSBLAN1
JAUDIO2
JAUDIO1
LAN
(optional)
JUSBV1
PCI-EX1_2
PCI-EX1_1
PCI-EX16
XGP1
LAN
10/100
JCDIN1
PCI1
JSPDIF_OUT1
PCI2
Codec
PCI3
Note:■ represents the 1
st
pin.
K8T890
Socket 939
JUSBV2
Super
I/O
JUSB1
BAT1
JUSB2
JSPDIF_IN1
BIOS
(optional)
IDE1
IDE2
T8237R
JWOL1
(optional)
JCMOS1
JPANEL1
JSATA1
JSATA2
JDJ1(optional)
JSFAN1
JATXPWR1
FDD1
JCI1
5
K8T890-A9
CHAPTER 2: HARDWARE INSTALLATION
2.1 INSTALLING CENTRAL PROCESSING UNIT (CPU)
Step 1: Remove the socket protection cap.
Step 2: Pull the lever toward direction A from the socket and then ra ise the
lever up to a 90-degree angle.
90
A
Step 3: Look for the white triangle on socket, and the gold triangle on
CPU should point forwards this white triangle. The CPU will fit
only in the correct orientation.
6
K8T890-A9
Step 4: Hold the CPU down firmly, and then close the lever toward direct
B to complete the installation.
B
Step 5: Put the CPU Fan on the CPU and buckle it. Connect the CPU
FAN powe r cable to the JCFAN1. This completes the installation.
2.2 FANHEADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufa cture r.
Connect the fan cable to the connector while matching the black wire to
pin#1.
JCFAN1: CPU Fan Header
JSFAN1: System Fan Header
JCFAN1
31
JSFAN1
3
1
Note:
The JCFAN1 and JSFAN1 support 3-pin head connector. When connecting with wires
onto connectors, please note that the red wire is the positive and should be connected to
pin#2, and the black wire is Ground and should be connected to GND.
Pin
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
7
K8T890-A9
2.3 INSTALLING SYSTEM MEMORY
2.2.1 DDR Module installation
1. Unlock a DIMM slot by pressing the
retaining clips outward. Align a DIMM on
the slot such that the notch on the DIMM
matches the break on the Slot.
2. Insert the DIMM vertically and firmly into
the slot until the retaining chip snap back
in place and the DIMM is properly seated.
DIMM1
DIMM2
DIMM4
DIMM3
2.4 DDR Installation Notice
1. Please follow the table below to install DDR memory module, or the
system may not boot up or may not function properly.
2. “SS” represents Single Side DDR memory module.
3. “DS” represents Double Side DDR memory module.
4. Star sign “*” represents leave the DIMM socket empty.
setup1setup2setup3setup1setup2setup3
DIMM1 SS/DS
DIMM2
DIMM3
DIMM4
* * *
*
* * * *
64bit 128bit
*
SS/DSSS/DS
SS/DSSS/DS
SS/DS
*
*
SS/DS
*
SS/DS
SS/DSSS/DS
SS/DSSS/DS
8
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