1. Уводзіны
This manual provides detailed instructions for the installation, operation, maintenance, and troubleshooting of the Acer TC-120 XC-120 DAA78L 13127-1 DDR3 Motherboard. This motherboard is designed for Acer TC-120 and XC-120 series desktop computers, supporting DDR3 memory and featuring integrated graphics.

This image displays the overall layout of the motherboard, highlighting key components such as the CPU socket, four DDR3 RAM slots, various PCIe expansion slots, and the rear I/O panel connectors. The model numbers "TC-120" and "XC-120" are visible at the top.
2. Тэхнічныя характарыстыкі
| Асаблівасць | Апісанне |
|---|---|
| Нумар мадэлі | TC-120 XC-120 |
| Нумар дэталі | DAA78L 13127-1 |
| Сумяшчальны брэнд | Acer |
| Тып памяці | DDR3 |
| Мадэль графічнага працэсара | Інтэграваны |
| Тып відэакарты | Інтэграваны |
| З працэсарам | No (CPU not included) |
| Убудаваная памяць | няма |
| Убудаваны цвёрдацельны дыск | няма |
| Акумулятар CMOS | Так (у камплекце) |
| Паходжанне | Кантынентальны Кітай |

Гэта выява дае падрабязную інфармацыю view of the motherboard's surface, clearly displaying the model number "DAA78L 13127-1" and indicating "MADE IN CHINA". This information is crucial for identification and compatibility.
3. Ўстаноўка і налада
Before beginning installation, ensure your computer is powered off and unplugged from the wall outlet. Wear an anti-static wrist strap to prevent electrostatic discharge (ESD) damage to components.
3.1 Падрыхтоўка шасі
Ensure your computer case is compatible with the motherboard's form factor. Remove the side panel of your computer case to access the interior.
3.2 Усталёўка працэсара
- Знайдзіце раз'ём працэсара на матчынай плаце.
- Gently lift the load lever on the CPU socket.
- Align the CPU with the socket, ensuring the gold triangle on the CPU matches the triangle on the socket. Do not force the CPU into place.
- Апусціце рычаг нагрузкі, каб замацаваць працэсар.
- Apply a thin layer of thermal paste to the top of the CPU.
- Усталюйце кулер працэсара ў адпаведнасці з інструкцыямі вытворцы.
3.3 Installing RAM (DDR3)
- Locate the DDR3 memory slots (typically blue and black).
- Адкрыйце зашчапкі з абодвух канцоў слота памяці.
- Align the RAM module with the slot, ensuring the notch on the module matches the key in the slot.
- Моцна націсніце на абодва канцы модуля аператыўнай памяці, пакуль зашчапкі не зафіксуюцца.
3.4 Installing Storage Devices
Connect your SATA hard drives or SSDs to the SATA ports on the motherboard using SATA data cables. Connect power from your power supply unit (PSU) to the drives.
3.5 Падключэнне крыніцы сілкавання
- Connect the 24-pin ATX power connector from your PSU to the corresponding port on the motherboard.
- Connect the 4-pin or 8-pin CPU power connector from your PSU to the CPU power port near the CPU socket.
- Connect power to any other components such as graphics cards (if applicable) and storage drives.
3.6 Connecting Front Panel Connectors
Connect the front panel connectors (Power LED, HDD LED, Power Switch, Reset Switch, USB, Audio) from your computer case to the corresponding pins on the motherboard. Refer to your computer case manual for specific pin layouts if needed.
3.7 Усталёўка плат пашырэння
If installing any PCIe expansion cards (e.g., dedicated graphics card, network card), gently insert them into the appropriate PCIe slots until they are fully seated and secured with the case latch or screw.
4. Аперацыя
4.1 Першы запуск
After all components are installed and connected, close the computer case and connect the power cable, monitor, keyboard, and mouse. Power on the system. The system should display the BIOS/UEFI splash screen.
4.2 Налада BIOS/UEFI
To enter the BIOS/UEFI setup utility, press the designated key (commonly DEL, F2, F10, or F12) during the boot process. In the BIOS, you can configure:
- Boot order (for installing an operating system)
- Сістэмная дата і час
- CPU and memory settings
- Integrated peripherals
Save changes and exit the BIOS to continue booting or install an operating system.
4.3 Устаноўка аперацыйнай сістэмы
Insert your operating system installation media (USB drive or DVD) and follow the on-screen prompts to install your preferred operating system.
5. Тэхнічнае абслугоўванне
5.1 Ачыстка
Рэгулярна чысціце ўнутраную частку корпуса кампутара, каб прадухіліць назапашванне пылу, якое можа прывесці да перагрэву. Выкарыстоўвайце сціснутае паветра для выдалення пылу з вентылятараў, радыятараў і кампанентаў матчынай платы. Перад чысткай пераканайцеся, што сістэма выключана і адключана ад сеткі.
5.2 Замена батарэі CMOS
The motherboard includes a CMOS battery (CR2032) which maintains BIOS settings and the system clock. If you experience issues with incorrect time/date or lost BIOS settings, the CMOS battery may need replacement. To replace:
- Выключыце і адключыце кампутар.
- Locate the coin-cell battery on the motherboard.
- Gently pry out the old battery using a non-conductive tool.
- Устаўце новую батарэю CR2032 станоўчым (+) бокам уверх.
- Power on the system and reconfigure BIOS settings if necessary.

This image shows the underside of the motherboard, primarily featuring the CPU socket backplate. This area is important for proper CPU cooler installation and ensures structural integrity.
6. Выпраўленне непаладак
| праблема | Магчымае рашэнне |
|---|---|
| Сістэма не ўключаецца. |
|
| Няма адлюстравання на маніторы. |
|
| System beeps during startup. | Refer to your motherboard's specific beep codes (often found in the original system manual) to diagnose the issue. Common codes indicate RAM, CPU, or graphics card problems. |
| Operating system fails to load. |
|
7. Карыстальніцкія парады
- Праверка перад устаноўкай: Before installing, visually inspect the motherboard for any physical damage.
- Прадухіленне статычнай электрычнасці: Always handle the motherboard and other components on an anti-static surface and use an anti-static wrist strap to prevent damage from static electricity.
- Сумяшчальнасць: Double-check compatibility of your CPU, RAM, and other components with this motherboard model (TC-120 XC-120 DAA78L 13127-1) before installation.
- Абнаўленне BIOS: If experiencing compatibility issues with newer CPUs or RAM, check the Acer support website for potential BIOS updates for the TC-120 or XC-120 series.
8. Гарантыя і падтрымка
8.1 Гарантыя на выраб
This product comes with a 30-day warranty from the date of purchase. The warranty covers manufacturing defects and ensures the product is in working condition upon arrival. Please note that man-made damage is not covered under this warranty.
8.2 Тэхнічная падтрымка
For technical assistance or warranty claims, please contact your seller or refer to the official Acer support channels for your specific computer model (TC-120 or XC-120).