The Gigabyte A520I AC (rev. 1.x) is a mini ITX motherboard designed for high-performance desktops. It comes with an Intel Bluetooth Driver version 21.80.0.3 for Windows 10 64-bit operating system. This driver allows you to connect the latest Bluetooth devices to your computer with increased connectivity speed, latency reduction as well as improving signal strength.

Features:

1. Intel Bluetooth Driver: The Gigabyte A520I AC (rev. 1.x) comes with Intel Bluetooth Driver version 21.80.0.3 essentially increasing the compatibility with the latest Bluetooth devices, and offers a multitude of services that were absent without the utility.
2. Supports 3rd Gen AMD Ryzen Processors
3. Fast connectivity: Gigabyte A520I delivers a faster data transfer rate with speeds of USB 3.2 Gen 1 Type-A and Type-C ports, M.2 Slot with M Key design and support for PCIe 3.0 x4 to provide a massive boost in transfer speed whether it be in-game, for work or simply enjoy it A/V tasks.
4. Blend of Wi-Fi 5 & BT 5: Intel Wireless AC 3168 supports wireless communications while 1 .73Gbps theoretical throughput delivers much-needed bandwidth for fast connection speed, low latency and precise time synchronization feature in order to manage multiple connected wireless devices
5. 6 phase Digital Power Design
6. High-quality Audio Capacitors and Audio Noise Guard with LED Track Lighting
7. Fan eXpert technologies offers versatile fan header design allows user to resist high water temp in summer/fall but reducing noise for low usage environments and striking a optimal balance.
8. Smart Fan offers automatic fan adjustment that reduces cluttered in controlling fans speed one by one according to the system's signal sent

Specifications:

• Chipset: A520
• Supported Processor: Supports 3rd Gen AMD Ryzen CPUs
• Memory: 2x DDR4 DIMM sockets supporting up to 64 GB of system memory;Up to AMD Ryzen Series I64 memory
• Audio: Realtek audio codec delivers crystal clear audio and comes equipped with both audio capacitors, audio noise guard, and LED strip lighting

Known Issues and Troubleshooting:

Though the Gigabyte A520I AC (rev. 1.x) Intel Bluetooth Driver comes with latest updates solving most possible issues however some installations may experience challenges, such as :

• Compatibility issues with old Windows versions: It may sometimes refuse to update or cause compatibility issues with older versions of windows primarily due incompatibility issues
• Inability to connect to other Bluetooth devices: An older version may malfunction frequently leaving it unable to connect to other ASUS machines or any misplaced drivers for affected parts of networking apps.

Troubleshooting:

As best practices to sidestep any potential driver issues:

1. Download latest drivers from vendor website(other than Windows Built-in profiles)
2. Delete Bluetooth Root Prefix and Re-Pair the device
3. Replugging USB or Bluetooth adapter

The driver for Windows 10 during startup will locate the respective setting initializations making CPU run without failure even despite the above mentioned shortcomings.