Instruction/ maintenance manual of the product M3A790GXH/128M Asrock
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1 1 1 1 1 M3A790GXH/128M User Ma nual V ersion 1.1 Published July 2009 Copyright©2009 ASRock INC. All rights reserved..
2 2 2 2 2 Copyright Notice: Copyright Notice: Copyright Notice: Copyright Notice: 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 purcha ser for ba ckup purpose, without written consent of ASRock Inc.
3 3 3 3 3 Contents Contents Contents Contents Contents 1. 1. 1. 1. 1. Introduction Introduction Introduction Introduction Introduction ........................................................... ........................................................
4 4 4 4 4 2.18.2 Installing Windows ® Vista TM / Vista TM 64-bit Without RAID Functions ...................................................................... 52 2.19 DTS Operation Guide ...............................................................
5 5 5 5 5 1. 1. 1. 1. 1. Introduction Introduction Introduction Introduction Introduction Tha nk you for purcha sing ASRock M3A790GXH/128M motherboard, a relia ble motherboard produced under ASRock’s consistently stringent quality control.
6 6 6 6 6 1.2 1.2 1.2 1.2 1.2 Specifications Specifications Specifications Specifications Specifications Platform - A TX Form Fa ctor: 12.0-in x 8.8-in, 30.
7 7 7 7 7 LAN - PCIE x1 Gigabit LAN 10/100/1000 Mb/s - Realtek RTL81 1 1DL - Supports Wake-On-LAN Rear Panel I/O I/O Panel - 1 x PS/2 Keyboard Port - 1 x V GA/D-Sub Port - 1 x V GA/D VI-D Port - 1 x HDMI Port - 1 x Optical SPDIF Out Port - 1 x IEEE 1394 Port - 1 x eSA T AII Port - 6 x Ready-to-Use USB 2.
8 8 8 8 8 WARNING Plea se realize that there is a certain risk involved with overclocking, including adjusting the setting in the BIOS, a pplying U ntied Overclocking T e chnology , or using the third- party overclocking tools. Overclocking may affect your system stability, or even cause da mage to the components and devices of your system.
9 9 9 9 9 4. Due to the operating system limitation, the a ctual memory size may be less tha n 4GB for the reservation f or system usage under Windows ® XP and Windows ® V ista TM . For Windows ® XP 64-bit a nd Windows ® Vista TM 64-bit with 64-bit CPU, there is no such limitation.
10 10 10 10 10 15. ASRock In stant Fla sh is a BIOS fla sh utility embedded in Fla sh ROM. This convenient BIOS update tool allows you to update system BIOS without entering operating systems first like MS-DOS or Windows ® .
11 11 11 11 11 1.3 1.3 1.3 1.3 1.3 T T T T T wo CrossF wo CrossF wo CrossF wo CrossF wo CrossF ireX ireX ireX ireX ireX TM TM TM TM TM Graphics Card Suppor Graphics Card Suppor Graphics Card Suppor Gr.
12 12 12 12 12 1.5 1.5 1.5 1.5 1.5 Minimum Hardware Requirement for 1080p Blu-ray Minimum Hardware Requirement for 1080p Blu-ray Minimum Hardware Requirement for 1080p Blu-ray Minimum Hardware Require.
13 13 13 13 13 1.6 1.6 1.6 1.6 1.6 P P P P P assed 1080p Blu-ray (BD) / HD assed 1080p Blu-ray (BD) / HD assed 1080p Blu-ray (BD) / HD assed 1080p Blu-ray (BD) / HD assed 1080p Blu-ray (BD) / HD -D -D.
14 14 14 14 14 1.7 Motherboard Layout 1.7 Motherboard Layout 1.7 Motherboard Layout 1.7 Motherboard Layout 1.7 Motherboard Layout IDE1 SOCKET AM3 FSB800 DDR3_A1 (64 bit, 240-pin module) DDR3_B1 (64 bi.
15 15 15 15 15 1.8 1.8 1.8 1.8 1.8 I/O P I/O P I/O P I/O P I/O P anel anel anel anel anel ** If you use 2-channel spe aker , plea se connect the spea ker’s plug into “Front Spea ker Ja ck”. See the table below f or connection details in a ccordance with the type of spe aker you use.
16 16 16 16 16 2. 2. 2. 2. 2. Installation Installation Installation Installation Installation This is a n A TX form fa ctor (12.0-in x 8.8-in, 30.5 cm x 22.4 cm) motherboard. Before you install the motherboard, study the conf iguration of your cha ssis to en- sure that the motherboard fits into it.
17 17 17 17 17 2.1 2.1 2.1 2.1 2.1 CPU Installation CPU Installation CPU Installation CPU Installation CPU Installation Step 1. U nlock the socket by lifting the lever up to a 90 o a ngle. Step 2. Position the CPU directly above the socket such that the CPU corner with the golden triangle matches the socket corner with a small triangle.
18 18 18 18 18 2.3 Installation of Memory Modules (DIMM) 2.3 Installation of Memory Modules (DIMM) 2.3 Installation of Memory Modules (DIMM) 2.3 Installation of Memory Modules (DIMM) 2.
19 19 19 19 19 notch break notch break Installing a DIMM Installing a DIMM Installing a DIMM Installing a DIMM Installing a DIMM Plea se make sure to disconnect power supply bef ore adding or removing DIMMs or the system components. Step 1. U nlock a DIMM slot by pre ssing the retaining clips outward.
20 20 20 20 20 2.4 Expansion Slots (PCI and PCI Express Slots) 2.4 Expansion Slots (PCI and PCI Express Slots) 2.4 Expansion Slots (PCI and PCI Express Slots) 2.4 Expansion Slots (PCI and PCI Express Slots) 2.4 Expansion Slots (PCI and PCI Express Slots) There are 2 PCI slots and 4 PCI Expre ss slots on this motherboard.
21 21 21 21 21 Installing an expansion card Installing an expansion card Installing an expansion card Installing an expansion card Installing an expansion card Step 1. Before in stalling the expa nsion card, plea se ma ke sure that the power supply is switched off or the power cord is unplugged.
22 22 22 22 22 2. If you have installed onboard V GA driver from our support CD to your system alrea dy , you ca n freely enjoy the benefits of dual monitor function after your system boots. If you haven’t installed onboard V GA driver yet, ple a se install onboard V GA driver from our support CD to your system a nd re start your computer .
23 23 23 23 23 Surround Display Feature This motherboard supports surround display upgrade. With the internal V GA output support (D VI-D, D-Sub a nd HDMI) a nd external add-on PCI Express V GA cards, you ca n ea sily enjoy the benefits of surround display feature.
24 24 24 24 24 HDCP Function HDCP function is supported on this motherboard. T o use HDCP function with this motherboard, you need to adopt the monitor that supports HDCP function a s well. Theref ore, you ca n enjoy the superior display quality with high-definition HDCP encryption contents.
25 25 25 25 25 1. If a customer incorrectly configures their system they will not see the performa nce benefits of CrossFireX TM . All three CrossFireX TM components, a CrossFireX TM Rea dy gra phics .
26 26 26 26 26 Step 2. T o cha nge it to CrossFireX TM mode, you need to reverse the direction of ASRock SLI/XFire Switch Card. Plea se simulta neously pull open both the retention arms that hold the card in position. The card itself will spring away from the retention slot.
27 27 27 27 27 Step 6. Install one Ra deon gra phics card to PCIE3 slot. For the proper installation procedures, plea se refer to section “Expa nsion Slots”. CrossFire TM Bridge Step 8. Connect the D VI monitor cable to the D VI connector on the Radeon gra phics card on PCIE2 slot.
28 28 28 28 28 2.6.1.2 Installing Three CrossFireX 2.6.1.2 Installing Three CrossFireX 2.6.1.2 Installing Three CrossFireX 2.6.1.2 Installing Three CrossFireX 2.6.1.2 Installing Three CrossFireX TM TM TM TM TM -Ready Graphics -Ready Graphics -Ready Graphics -Ready Graphics -Ready Graphics Cards Cards Cards Cards Cards Step 1.
29 29 29 29 29 CrossFire TM Bridge Step 6. Connect the D VI monitor cable to the D VI connector on the Radeon gra phics card on PCIE2 slot. (Y ou may use the D VI to D-Sub ada pter to convert the D VI connector to D-Sub interface, a nd then connect the D-Sub monitor cable to the D VI to D-Sub a da pter .
30 30 30 30 30 Step 6. Double-click “A TI Catalyst Control Center”. Click “View”, select “CrossFireX TM ”, a nd then check the item “Ena ble CrossFireX TM ”. Select “2 GPUs” a nd click “Apply” (if you install two Ra deon gra phics cards).
31 31 31 31 31 Although you have selected the option “Enable CrossFire TM ”, the CrossFireX TM function may not work a ctually . Y our computer will automatically reboot.
32 32 32 32 32 2.7 2.7 2.7 2.7 2.7 Hybrid CrossFireX Hybrid CrossFireX Hybrid CrossFireX Hybrid CrossFireX Hybrid CrossFireX TM TM TM TM TM Operation Guide Operation Guide Operation Guide Operation Guide Operation Guide This motherboard supports A TI TM Hybrid CrossFireX TM feature.
33 33 33 33 33 * Hybrid CrossFireX TM a ppearing here is a registered tra demark of A TI TM T echnologies Inc., and is used only f or identification or expla nation a nd to the owners’ benefit, without intent to infringe. * For further information of A TI TM Hybrid CrossFireX TM technology , please che ck AMD website for up dates a nd details.
34 34 34 34 34 +5V 1_2 +5VSB 2_3 2.8 2.8 2.8 2.8 2.8 Jumpers Setup Jumpers Setup Jumpers Setup Jumpers Setup Jumpers Setup The illustration shows how jumpers are setup. When the jumper ca p is placed on pin s, the jumper is “Short”. If no jumper ca p is placed on pins, the jumper is “Open”.
35 35 35 35 35 FLOPPY 1 Pin 1 the red-striped side to Pin1 2.9 Onboard Headers and Connectors 2.9 Onboard Headers and Connectors 2.9 Onboard Headers and Connectors 2.9 Onboard Headers and Connectors 2.9 Onboard Headers and Connectors Onboard headers and connectors are NOT jumpers.
36 36 36 36 36 USB 2.0 Headers Besides six default USB 2.0 (9-pin USB10_1 1) ports on the I/O pa nel, there are (see p.14 No. 27) three USB 2.0 headers on this motherboard. Ea ch USB 2.0 hea der ca n support two USB 2.0 ports. (9-pin USB8_9) (see p.14 No.
37 37 37 37 37 1. High Definition Audio supports Ja ck Sensing, but the pa nel wire on the cha ssis must support HDA to function corre ctly . Plea se follow the instruction in our ma nual a nd cha ssis manual to in stall your system. 2. If you use AC’97 audio panel, ple a se install it to the front panel audio header a s below: A.
38 38 38 38 38 A TX 12V Power Connector Plea se connect an A TX 12 V (8-pin A TX12V1) power supply to this connector. (see p.14 No. 1) CPU Fan Connector Ple a se connect the CPU fa n (4-pin CPU_FAN1) cable to this connector and (see p.14 No. 3) match the bla ck wire to the ground pin.
39 39 39 39 39 Serial port Header This COM1 header supports a (9-pin COM1) serial port module. (see p.14 No.32) CCTS#1 DDSR#1 DDTR#1 RRXD1 DDCD#1 TTXD1 GND RRTS#1 RRI#1 1 HDMI_SPDIF Header HDMI_SPDIF header, providing (3-pin HDMI_SPDIF1) SPDIF audio output to HDMI V GA (see p.
40 40 40 40 40 C B G N D + 5 V S P D IFO U T blue black blue black G N D S P D IFO U T blue black G N D S P D IFO U T A HDMI_SPDIF Cable P l ease connect the bla ck end (A) (Optional) of HDMI_SPDIF cable to the HDMI_SPDIF header on the motherboard.
41 41 41 41 41 2.10 HDMI_SPDIF Header Connection Guide 2.10 HDMI_SPDIF Header Connection Guide 2.10 HDMI_SPDIF Header Connection Guide 2.10 HDMI_SPDIF Header Connection Guide 2.
42 42 42 42 42 2.11 2.11 2.11 2.11 2.11 SA SA SA SA SA T T T T T AII Hard Disk Setup Guide AII Hard Disk Setup Guide AII Hard Disk Setup Guide AII Hard Disk Setup Guide AII Hard Disk Setup Guide Before installing SA T AII hard disk to your computer , plea se carefully read below SA T AII hard disk setup guide.
43 43 43 43 43 2.12 eSA 2.12 eSA 2.12 eSA 2.12 eSA 2.12 eSA T T T T T AII Inter AII Inter AII Inter AII Inter AII Inter face Introduction face Introduction face Introduction face Introduction face Introduction What is eSA T AII? This motherboard supports eSA T AII interfa ce, the external SA T AII specification.
44 44 44 44 44 Connect one end of the eSA T AII device cable to eSA T AII device 2. Use the eSA T AII device cable to connect eSA T AII device and the eSA T AII port of the I/O shield. Connect the SA T A data Cable to the ora nge SA T AII connector (SA T AII_6) Connect the SA T A data ca ble to the eSA T AII connector (eSA T AII_TOP) 1.
45 45 45 45 45 Comparison between eSA T AII a nd other devices IEEE 1394 400Mb/s USB 2.0 480Mb/s SA T A 1.5Gb/s (1500Mb/s) eSA T AII/SA T AII 3.0Gb/s (3000Mb/s).
46 46 46 46 46 2.14 Hot Plug and Hot Swap F 2.14 Hot Plug and Hot Swap F 2.14 Hot Plug and Hot Swap F 2.14 Hot Plug and Hot Swap F 2.14 Hot Plug and Hot Swap F unctions for SA unctions for SA unctions.
47 47 47 47 47 Caution 1. Without SA T A 15-pin power conne ctor interface, the SA T A / SA T AII Hot Plug cannot be processed. 2. Even some SA T A / SA T AII HDDs provide both SA T A 15-pin power con.
48 48 48 48 48 How to Hot Plug a SA T A / SA T AII HDD: Points of attention, before you process the Hot Plug: Plea se do follow below instruction sequence to process the Hot Plug, i mproper procedure will cause the SA T A / SA T AII HDD da mage a nd data loss.
49 49 49 49 49 2.16 2.16 2.16 2.16 2.16 Driver Installation Guide Driver Installation Guide Driver Installation Guide Driver Installation Guide Driver Installation Guide T o install the drivers to your system, plea se insert the support CD to your optical drive first.
50 50 50 50 50 NOTE. If you install Windows ® XP / Windows ® XP 64-bit on IDE HDDs a nd want to ma nage (create, convert, delete, or rebuild) RAID functions on SA T A / SA TAII HDDs, you still need to set up “SA T A Operation Mode” to [RAID] first.
51 51 51 51 51 2.18 2.18 2.18 2.18 2.18 Installing Windows Installing Windows Installing Windows Installing Windows Installing Windows ® ® ® ® ® XP / XP 64-bit / Vista XP / XP 64-bit / Vista XP /.
52 52 52 52 52 2.18.2 Installing Windows 2.18.2 Installing Windows 2.18.2 Installing Windows 2.18.2 Installing Windows 2.18.2 Installing Windows ® ® ® ® ® Vista Vista Vista Vista Vista TM TM TM T.
53 53 53 53 53 2.19 2.19 2.19 2.19 2.19 DTS Operation Guide DTS Operation Guide DTS Operation Guide DTS Operation Guide DTS Operation Guide DTS (Digital Theater Syste ms) is a multi-cha nnel digital surround sound format to bring you a new cla ss of entertainment experience by using home PCs.
54 54 54 54 54 Music Mode The music mode is for use with a ny stereo music recordings, which preserves the integrity of the stereo mix while augmenting it with a center cha nnel to a nchor the image, a nd deriving enough surround content to yield a spa cious, three-dimen sional listening experience.
55 55 55 55 55 2.20 2.20 2.20 2.20 2.20 Untied Overclocking T Untied Overclocking T Untied Overclocking T Untied Overclocking T Untied Overclocking T echnology echnology echnology echnology echnology This motherboard supports U ntied Overclocking T echnology , which mean s during overclocking, FSB enjoys better margin due to fixed PCI / PCIE buses.
56 56 56 56 56 3. 3. 3. 3. 3. BIOS SETUP UTILITY BIOS SETUP UTILITY BIOS SETUP UTILITY BIOS SETUP UTILITY BIOS SETUP UTILITY 3.1 Introduction 3.1 Introduction 3.1 Introduction 3.1 Introduction 3.1 Introduction This section explains how to use the BIOS SETUP UTILITY to configure your system.
57 57 57 57 57 BIOS SETUP UTILITY Main Smart H/W Monitor Boot Security Exit Advanced Use [Enter], [TAB] or [SHIFT-T AB] to select a field. Use [+] or [-] to configure system Time. Select Screen Select Item +- Change Field T ab Select Field F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.
58 58 58 58 58 3.3 3.3 3.3 3.3 3.3 Smart Screen Smart Screen Smart Screen Smart Screen Smart Screen In the Smart screen, you ca n load the BIOS setup a ccording to your requirements. BIOS SETUP UTILITY Main Advanced H/W Monitor Boot Security Exit Smart Settings Exit system setup after saving the changes.
59 59 59 59 59 ASRock Insta nt Flash ASRock Insta nt Flash is a BIOS fla sh utility embedded in Fla sh ROM. This convenient BIOS update tool allows you to update system BIOS without entering operating systems first like MS-DOS or Windows ® .
60 60 60 60 60 BIOS SETUP UTILITY Main Smart H/W Monitor Boot Security Exit Select Screen Select Item Enter Go to Sub Screen F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.
61 61 61 61 61 Spread Spectrum This item should always be [Auto] for better system stability. Boot Failure Guard Ena ble or disable the feature of Boot Failure Guard. Cool ‘n’ Quiet Use this item to enable or disa ble AMD’s Cool ‘n’ Quiet TM technology .
62 62 62 62 62 BIOS SETUP UTILITY CPU Configuration Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.
63 63 63 63 63 3.4.2 3.4.2 3.4.2 3.4.2 3.4.2 Memory Configuration Memory Configuration Memory Configuration Memory Configuration Memory Configuration BIOS SETUP UTILITY Memory Configuration Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.
64 64 64 64 64 TRAS Use this to adjust TRAS values. Configuration options: [Auto], [15CLK] to [30CLK]. The default value is [Auto]. TRTP Use this to adjust TRTP values. Configuration options: [Auto], [4CLK] to [7CLK]. The default value is [Auto]. TRRD Use this to adjust TRRD values.
65 65 65 65 65 CHA Addr/Cmd Fine Delay Use this to adjust value s for CHA Addr/Cmd Fine Delay feature. Configura- tion options: [Auto], [No Delay], [1/64CLK] to [31/64CLK]. The default value is [Auto]. CHA Addr/Cmd Setup Time Use this to adjust values f or CHA Addr/Cmd Setup T ime feature.
66 66 66 66 66 CHA DA T A Drive Strength Use this to adjust value s for CHA DA T A Drive Strength. Configuration options: [Auto], [0.75x], [1.00x], [1.25x] and [1.50x]. The default value is [Auto]. CHA DQS Drive Strength Use this to adjust values for CHA DQS Drive Strength.
67 67 67 67 67 BIOS SETUP UTILITY v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. Chipset Settings Onboard HD Audio Front Panel OnBoard Lan Onboard IEEE 1394 Graphics Adapter Share Memory Si.
68 68 68 68 68 SidePort Clock Speed This allows you to select sideport clock speed. The default value is [Auto]. Configuration options: [Auto], [400 MHz], [533 MHz], [667 MHz], [800 MHz], [1066 MHz], [1333 MHz], [1400 MHz], [1430 MHz], [1460 MHz], [1490 MHz], [1520 MHz], [1550 MHz], [1580 MHz], [1610 MHz], [1640 MHz], [1670 MHz] a nd [1700 MHz].
69 69 69 69 69 BIOS SETUP UTILITY ACPI Settings Select auto-detect or disable the STR feature. Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
70 70 70 70 70 PCI Devices Power On Use this item to enable or disable PCI devices to turn on the system from the power-soft-off mode. PS/2 Keyboard Power On Use this item to enable or disable PS/2 keyboard to turn on the system from the power-soft-off mode.
71 71 71 71 71 BIOS SETUP UTILITY Storage Configuration v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. Advanced Onboard SA T A Controller SA T A Operation Mode IDE1 Master IDE1 Slave SA T A.
72 72 72 72 72 TYPE Use this item to configure the type of the IDE device that you specify. Configuration options: [Not In stalled], [Auto], [CD/D V D], a nd [ARMD]. [Not Installed]: Select [Not Installed] to disable the use of IDE device. [Auto]: Select [Auto] to automatically detect the hard disk drive.
73 73 73 73 73 BIOS SETUP UTILITY Advanced PCI / PnP Settings V alue in units of PCI clocks for PCI device latency timer regi ste r . Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
74 74 74 74 74 BIOS SETUP UTILITY Floppy Configuration Select the type of floppy drive connected to the system. Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
75 75 75 75 75 BIOS SETUP UTILITY USB Configuration T o enable or disable the onboard USB controllers. Select Screen Select Item +- Change Option F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc.
76 76 76 76 76 BIOS SETUP UTILITY Hardware Health Event Monitoring Select Screen Select Item F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2003, American Megatrends, Inc. CPU Temperatur e M / B T emperature CPU Fan Speed Chassis Fan Speed Vcore + 3.
77 77 77 77 77 BIOS SETUP UTILITY Main Smart Advanced H/W Monitor Security Exit Boot Settings Configure Settings during System Boot. Select Screen Select Item Enter Go to Sub Screen F1 General Help F9 Load Defaults F10 Save and Exit ESC Exit v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.
78 78 78 78 78 BIOS SETUP UTILITY Main Smart Advanced H/W Monitor Boot Exit Install or Change the password. Select Screen Select Item Enter Change F1 General Help F10 Save and Exit ESC Exit F9 Load Defaults v02.54 (C) Copyright 1985-2005, American Megatrends, Inc.
79 79 79 79 79 BIOS SETUP UTILITY Main Smart Advanced H/W Monitor Boot Security Exit system setup after saving the changes. F10 key can be used for this operation. Select Screen Select Item Enter Go to Sub Screen F1 General Help F10 Save and Exit ESC Exit F9 Load Defaults v02.
80 80 80 80 80 4. 4. 4. 4. 4. Sof Sof Sof Sof Sof tware Suppor tware Suppor tware Suppor tware Suppor tware Suppor t t t t t 4.1 Install Operating System 4.
An important point after buying a device Asrock M3A790GXH/128M (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Asrock M3A790GXH/128M yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Asrock M3A790GXH/128M - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Asrock M3A790GXH/128M you will learn all the available features of the product, as well as information on its operation. The information that you get Asrock M3A790GXH/128M will certainly help you make a decision on the purchase.
If you already are a holder of Asrock M3A790GXH/128M, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Asrock M3A790GXH/128M.
However, one of the most important roles played by the user manual is to help in solving problems with Asrock M3A790GXH/128M. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Asrock M3A790GXH/128M along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center