(Note: Pin 9 is typically a key/empty pin with no metal prong). Pin Assignment Table: Pin Number Description Wire Polarity Hard Drive LED (HD_LED) Activity Indicator Pin 1 (+), Pin 3 (-) Pin 2 & 4 Power LED (PWR_LED) Power Indicator Pin 2 (+), Pin 4 (-) Pin 5 & 7 Reset Switch (RESET_SW) Reboots System Polarity Neutral Pin 6 & 8 Power Switch (PWR_SW) Turns PC On/Off Polarity Neutral Pin 9 Key Pin No Pin / Empty Pin 13 & 14 Chassis Intrusion Case Open Sensor 4. Clear CMOS Jumper Configuration (CLR_CMOS)

If you are struggling with a specific setup step for your , please let me know: What CPU/APU model are you trying to install?

The AAHD3VC offers adequate expansion opportunities for a legacy budget system.

. Because it is an OEM (Original Equipment Manufacturer) part, Acer does not provide a standalone manual for the motherboard itself; instead, documentation is integrated into the official Acer desktop system manuals Technical Specifications Supports up to 16 GB of DDR3-SDRAM (240-pin DIMM). Expansion Slots: 1x PCI Express x16 1x PCI Express x1 1x Standard PCI slot. 4x SATA ports for hard drives or optical drives. Onboard Features:

is a proprietary motherboard manufactured for Acer desktop computers, most notably the Aspire ATC-105-UR11

After a fresh OS install, you might find that your internet or sound doesn't work.

This is the most sought-after information for this board, as the case connectors are often unmarked.

While the official documentation for the Acer AAHD3-VC may be scattered, the community has provided a roadmap to getting the most out of this motherboard. The key steps to revitalizing your system are:

If you are looking to purchase a replacement or upgrade, you can check the used market for Acer AAHD3-VC Socket FM2 DDR3 Motherboards Go to product viewer dialog for this item.

The board features multiple internal USB 2.0 headers along the bottom edge, alongside a single USB 3.0 internal header for front-panel connection. Exclusive Front Panel Header (F_PANEL) Pinout