User manual ASROCK 939A785GMH128M

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Manual abstract: user guide ASROCK 939A785GMH128M

Detailed instructions for use are in the User's Guide.

 [. . . ] 939A785GMH/128M

User Manual

Version 1. 0 Published September 2009 Copyright©2009 ASRock INC. All rights reserved. 

1

Copyright Notice:
No part of this manual may be reproduced,  transcribed,  transmitted,  or translated in any language,  in any form or by any means,  except duplication of documentation by the purchaser for backup purpose,  without written consent of ASRock Inc. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies,  and are used only for identification or explanation and to the owners’ benefit,  without intent to infringe. 

Disclaimer:
Specifications and information contained in this manual are furnished for informational use only and subject to change without notice,  and should not be constructed as a commitment by ASRock. ASRock assumes no responsibility for any errors or omissions that may appear in this manual.  [. . . ] 2)

Please connect an ATX 12V power supply to this connector. 

Serial port Header
(9-pin COM1) (see p. 12 No. 27)
1

RRXD1 DDTR#1 DDSR#1 CCTS#1

This COM1 header supports a serial port module. 

RRI#1 RRTS#1 GND TTXD1 DDCD#1

28

2. 9

SAT SATAII Hard Disk Setup Guide

Before installing SATAII hard disk to your computer,  please carefully read below SATAII hard disk setup guide. Some default setting of SATAII hard disks may not be at SATAII mode,  which operate with the best performance. In order to enable SATAII function,  please follow the below instruction with different vendors to correctly adjust your SATAII hard disk to SATAII mode in advance; otherwise,  your SATAII hard disk may fail to run at SATAII mode. Western Digital
7 8 5 6 3 4 1 2

If pin 5 and pin 6 are shorted,  SATA 1. 5Gb/s will be enabled. On the other hand,  if you want to enable SATAII 3. 0Gb/s,  please remove the jumpers from pin 5 and pin 6. SAMSUNG
7 8 5 6 3 4 1 2

If pin 3 and pin 4 are shorted,  SATA 1. 5Gb/s will be enabled. On the other hand,  if you want to enable SATAII 3. 0Gb/s,  please remove the jumpers from pin 3 and pin 4. HITACHI Please use the Feature Tool,  a DOS-bootable tool,  for changing various ATA features. Please visit HITACHI’s website for details: http://www. hitachigst. com/hdd/support/download. htm

The above examples are just for your reference. For different SATAII hard disk products of different vendors,  the jumper pin setting methods may not be the same. Please visit the vendors’ website for the updates. 

29

AT (SAT AT (SAT 2 . 1 0 Serial ATA (SATA) / Serial ATAII (SATAII) Hard Disks Installation
This motherboard adopts AMD SB710 south bridge chipset that supports Serial ATA (SATA) / Serial ATAII (SATAII) hard disks and RAID (RAID 0,  RAID 1,  RAID 10 and JBOD) functions. You may install SATA / SATAII hard disks on this motherboard for internal storage devices. This section will guide you to install the SATA / SATAII hard disks. STEP 1: Install the SATA / SATAII hard disks into the drive bays of your chassis. STEP 2: Connect the SATA power cable to the SATA / SATAII hard disk. STEP 3: Connect one end of the SATA data cable to the motherboard’s SATAII connector. STEP 4: Connect the other end of the SATA data cable to the SATA / SATAII hard disk. 
If you plan to use RAID 0 or RAID 1 function,  you need to install at least 2 SATA / SATAII hard disks. If you plan to use RAID 10 function,  you need to install 4 SATA / SATAII hard disks. 

Functions SAT SAT 2. 11 Hot Plug and Hot Swap Functions for SATA / SATAII HDDs
This motherboard supports Hot Plug and Hot Swap functions for SATA / SATAII Devices in RAID / AHCI mode. AMD SB710 south bridge chipset provides hardware support for Advanced Host controller Interface (AHCI),  a new programming interface for SATA host controllers developed thru a joint industry effort. AHCI also provides usability enhancements such as Hot Plug. NOTE What is Hot Plug Function?
If the SATA / SATAII HDDs are NOT set for RAID configuration,  it is called “Hot Plug” for the action to insert and remove the SATA / SATAII HDDs while the system is still power-on and in working condition.  [. . . ] Currently,  the option [Auto] is set to Aircraft. Boot From Onboard LAN Use this item to enable or disable the Boot From Onboard LAN feature. Boot Up Num-Lock If this item is set to [On],  it will automatically activate the Numeric Lock function after boot-up. 

3 . 7 Security Screen
In this section,  you may set or change the supervisor/user password for the system.  [. . . ]

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