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MX255D 

Intel

®

 Atom Mobile Processor 

 

User’s Quick Start Card

   

 

Version 1.2

 

 

      

http://www.bcmcom.com

 

Inspect the Package:

 

 

One 

MX255D Motherboard

 

One 

Standard I/O Shield 

One

 

Dual COM Port Cables

 

Two 

SATA data cables 

One 

SATA power Y cable

 

One 

Driver CD

 

One 

User’s Quick Start Card

 

 

 

MX255D 

 

Responsibility: 

This manual is provided “As-Is” with no warranties of any kind, expressed or implied, including, but not limited to the implied 
warranties or conditions of this product’s fitness for any particular purpose. In no event shall we be liable for any loss of 
profits, loss of business, loss of data, interruption of business, or indirect, special, incidental, or consequential damages of 
any kind, even the possibility of such damages arising from any defect or error in this manual or product. We reserve the 
right to modify and update the user manual without prior notice. 

 

 

WARNING: CMOS Battery Damage

 

Replace your system’s CMOS RAM battery only with the identical CR-2032 3V Lithium-Ion coin cell (or equivalent) battery 
type to avoid risk of personal injury or physical damage to your equipment. Improper installation might cause battery to 
explode. Always dispose of used batteries according to the manufacturer’s instructions, or as required  by the local 
ordinance (where applicable).    The damage due to not following this warning will void your motherboard’s manufacturer 
warranty. 
 
Perchlorate Material- Special Handling May Apply. 
See 

http://www.dtsc.ca.gov/hazardouswaste/perchlorate/

 

 

 

Additional Information: 

Additional information on setting this board up can be found in the User’s Manual in the provided CD or DVD ROM.    The 
Online User’s Manual and FAQ/Knowledge Base can be found on our website by visiting our website: 

http://www.bcmcom.com

.    If your question is not answered in our FAQ/Knowledge Base, visit our forums and post your 

messages or submit a new FAQ through FAQ Submittal form for us to add your question in our FAQ with our answer. 

 

 

ATTENTION: Incorrect BIOS Setup

 

If you do not know how to handle BIOS setup or how to set it up properly, it is strongly advisable that you do not modify any 
of the settings than otherwise instructed in the User’s Quick Start Card.    Even a seemingly small incorrect adjustment or 
modification in the BIOS setup can render your system unstable or unusable. Incorrect BIOS setup is not covered by your 
motherboard’s manufacturer warranty. Try Clear CMOS information when system  does not boot after BIOS settings 
change.

 

Summary of Contents for MX255D

Page 1: ...y to explode Always dispose of used batteries according to the manufacturer s instructions or as required by the local ordinance where applicable The damage due to not following this warning will void...

Page 2: ...static electrical charge that may have built up in your body Avoid touching the components when handling the motherboard or a peripheral card Handle the motherboard and peripheral cards either by the...

Page 3: ...SYSFAN1 Fan Power Connector JGPIO1 GPIO Pin header JFP1 Front Panel Pin header JUSB1 Front USB Pin header JUSB2 Front USB Pin header JLPT1 Parallel port connector COM3 Serial Port Connector COM4 Seria...

Page 4: ...4 Internal Connector Pin Assignment JPWR1 Pin Signal 1 GND 2 GND 3 DC Power 4 DC Power JPWR2 Pin Signal 1 VCC5 2 GND 3 GND 4 12V JCI1 Pin Signal 1 CINTRU 2 GND...

Page 5: ...5 SATA1 SATA2 Pin Signal Name 1 GND 2 TX 3 TX 4 GND 5 RX 6 RX 7 GND JAMP1 Pin Signal 1 AMP_L 2 AMP_L 3 AMP_R 4 AMP_R CPUFAN1 SYSFAN1 Pin Signal 1 Ground 2 12V 3 Sensor 4 Control...

Page 6: ...GND 6 KBCLK_PH 5 MSCLK_ H 4 KBDAT_PH 3 MSDAT_PH 2 KBMS_Power 1 KBMS_Power JGPIO1 Pin Signal Name Signal Name Pin 12 KEY GND 11 10 GPIO OUPUT 3 GPIO INPUT 3 9 8 GPIO OUPUT 2 GPIO INPUT 2 7 6 GPIO OUPUT...

Page 7: ...Name Pin 1 HDD_LED Power_LED 2 3 HDD_LED Power_LED 4 5 RESET_SW Power_SW 6 7 RESET_SW Power_SW 8 9 Reserved No Pin 10 JUSB1 JUSB2 Pin Signal Name Pin Signal Name 1 VCC 2 VCC 3 USB0 4 USB1 5 USB0 6 US...

Page 8: ...TXT 4 DTR 5 GND 6 DSR 7 RTS 8 CTS 9 VCC_COM JINV1 Pin Signal 1 12V 2 GND 3 LVDS_BLON 4 L_BKLT CTRL 5 VCC5 JAUD1 Pin Signal Name Pin Signal Name 1 MIC L 2 GND 3 MIC R 4 PRESENCE 5 HEAD PHONE R 6 MIC DE...

Page 9: ..._VDDEN 15 LBKTL_EN_C 16 GND 17 LVDSA_DATA 0 18 LVDSA_DATA0 19 LVDSA_DATA 1 20 LVDSA_DATA1 21 LVDSA_DATA 2 22 LVDSA_DATA2 23 LVDSA_CLK 24 LVDSA_CLK 25 LVDSA_DATA 3 26 LVDSA_DATA3 27 GND 28 GND 29 LVDSB...

Page 10: ...IN GREEN LINE OUT PINK MIC IN LAN1 LAN2 RJ 45 USB Port 0 1 Connector Pin Signal Pin Signal 1 VCC 12 Yellow LED 2 D0 13 Green LED 3 D0 14 Orange LED 4 D1 U1 USB_PWR 5 D1 U2 USB_N0 6 D2 U3 USB_P0 7 D2 U...

Page 11: ...DTR Data terminal ready 5 GND ground 6 DSR Data set ready 7 RTS Request to send 8 CTS Clear to send 9 RI Ring indicator PS KBMS1 Internal PS 2 Keyboard Mouse Pin Signal Name Pin Signal Name 1 KB_DATA...

Page 12: ...1 2 Default Keep CMOS 2 3 Clear CMOS JAT1 AT ATX SELECT JUMPER 2 3 1 Jumper Status 1 2 Default AT POWER 2 3 ATX POWER JCOMP1 JCOMP2 POWER JUMPER 2 3 1 Jumper Status 1 2 Default 5V 2 3 12V J2 LVDS POWE...

Page 13: ...13 Motherboard Layout...

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