ASRock AMD B850i Lightning WiFi 6E Socket AM5 Ryzen 9000/8000/7000 Series DDR5 8200+ (OC) MHz 128GB Mini ITX Motherboard M.2 SATA3 6.0 Gb/s PCIe 5.0 B850 BIOS Flashback
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AI Verdict
This is a Mini-ITX AM5 board with 10+1+1 phase power, DDR5 8200+ (OC), and PCIe 5.0 for compact, high-performance builds.
This ASRock B850i Lightning WiFi motherboard is a strong fit for anyone building a high-performance Mini-ITX system. Its 10+1+1 phase power delivery and support for DDR5 8200+ (OC) memory with AM5 Ryzen 9000/8000/7000 series CPUs are top-tier for its size. The inclusion of PCIe 5.0 and dual M.2 slots (Gen5x4 and Gen4x4) means you're not compromising on speed despite the compact form factor.
If you need more than two SATA drives or multiple PCIe expansion cards, look for a Micro-ATX or ATX motherboard with more slots and headers.
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Pros
- Supports DDR5 memory up to 8200+ (OC) MHz for high-speed performance.
- Features a PCIe 5.0 x16 slot for next-generation graphics cards.
- Includes both Blazing M.2 (PCIe Gen5x4) and Hyper M.2 (PCIe Gen4x4) slots for ultra-fast storage.
- Equipped with a 10+1+1 phase power design and 110A Smart Power Stage (SPS) for stable power delivery.
- Offers Killer 2.5G LAN and WiFi 6E with Bluetooth for advanced wired and wireless connectivity.
- Supports BIOS Flashback for easy updates without a CPU.
Cons
- Only two DDR5 DIMM slots limit total memory capacity to 128GB.
- Provides only two SATA3 6.0 Gb/s ports for traditional storage devices.
- Features only three fan headers, which can restrict cooling configurations without splitters.
- Mini-ITX 170x170mm form factor inherently limits space for large CPU coolers and cable management.
Dimension Scores
The 10+1+1 phase power design with 110A Smart Power Stage (SPS) is exceptional for a Mini-ITX board, providing stable power for high-end AM5 CPUs.
It packs Killer 2.5G LAN, WiFi 6E, Bluetooth 5.2, Realtek ALC1220 audio, and BIOS Flashback, which is a robust set for its form factor.
As a Mini-ITX board, it's limited to one PCIe 5.0 x16 slot, two DDR5 DIMM slots, and two SATA3 ports, which is below average compared to larger form factors.
While ASRock provides utilities like Phantom Gaming Tuning and Auto Driver Installer, specific user feedback on the BIOS UI/UX or software stability is not widely available, placing it at category average.
Best For
- Compact gaming PC builds needing high CPU and GPU performance.
- Small form factor (SFF) workstations requiring fast memory and storage.
- Users prioritizing cutting-edge connectivity in a confined space.
Not Recommended For
- Users planning multi-GPU setups or needing numerous PCIe expansion cards.
- Builds requiring more than two SATA storage drives.
- Enthusiasts who need extensive fan control without additional hubs.
Watch Out For
- Only 3 fan headers are available, which means you'll likely need fan splitters or a separate fan controller for more than three cooling fans.
- The Mini-ITX 170x170mm footprint means tight clearance around the CPU socket, potentially limiting choices for large air coolers.
- With only two DDR5 DIMM slots, upgrading beyond 128GB RAM is impossible, and populating both slots might impact maximum OC speeds.
- The single PCIe 5.0 x16 slot means no room for additional expansion cards like sound cards or capture cards if a GPU is installed.
Full Specifications
| ASIN | B0DRTVR12D |
| Brand | ASRock |
| Platform | Windows 11 |
| Batteries | 1 CR2032 batteries required. |
| CPU Model | Ryzen 9 |
| CPU Socket | Socket AM5 |
| Model Name | B850I LIGHTNING WIFI |
| Item Weight | 2.33 pounds |
| Chipset Type | AMD B850 |
| Manufacturer | ASRock |
| Item model number | B850I LIGHTNING WIFI |
| Compatible Devices | Personal Computer |
| Memory Clock Speed | 8200 MHz |
| Package Dimensions | 9.17 x 7.56 x 3.78 inches |
| Compatible Processors | AMD Ryzen 9000/8000/7000 Series |
| RAM Memory Technology | DDR5 |
What Buyers Say
This ASRock B850i Lightning WiFi board is built for serious performance in a tiny package, especially for those jumping into AM5 with Ryzen 9000/8000/7000 series CPUs. The power delivery is seriously beefy for a Mini-ITX, and having both PCIe 5.0 for graphics and a Gen5 M.2 slot means you're not skimping on speed. The integrated WiFi 6E and 2.5G LAN are also a big win for connectivity. However, like all Mini-ITX boards, you're going to be working with limited space for cooling and fewer ports than larger motherboards.
“Man, this little board is a beast for my Ryzen 9, but seriously, trying to cram all my cables in here was a nightmare and I wish it had more fan plugs.”
Common Praise
- Robust 10+1+1 phase power design handles high-end CPUs without issue.
- Support for DDR5 8200+ (OC) memory allows for very fast RAM configurations.
- Dual M.2 slots, including a PCIe Gen5x4, provide cutting-edge storage speeds.
- Integrated WiFi 6E and 2.5G LAN offer premium networking capabilities.
- BIOS Flashback feature simplifies system building and troubleshooting.
Common Complaints
- Only two DDR5 DIMM slots restrict future memory upgrades or higher total capacity.
- Limited to two SATA3 ports, which can be a constraint for users with multiple traditional hard drives or SSDs.
- The Mini-ITX form factor makes cable management and installing larger CPU coolers challenging.
- Only three fan headers available, potentially requiring fan splitters for complex cooling setups.
Ownership Tips
- The compact size means you need to plan your build order carefully, especially with CPU cooler and M.2 drive installation.
- BIOS updates via Flashback are straightforward and a lifesaver if you're using a newer CPU that might not be supported out of the box.
- The onboard WiFi 6E is fast and stable, making wired Ethernet less critical for many users.
- Expect to use M.2 storage primarily, as the two SATA ports fill up quickly if you have other drives.
Frequently Asked Questions
What CPUs are compatible with this motherboard?
This motherboard supports AMD Socket AM5 Ryzen 9000, 8000, and 7000 Series Processors.
What is the maximum RAM speed and capacity supported?
It supports dual-channel DDR5 memory up to 8200+ (OC) MHz, with a maximum capacity of 128GB across its two DIMM slots.
Does this motherboard have Wi-Fi and Bluetooth?
Yes, it comes with WiFi 6E (802.11axe) and Bluetooth 5.2 for advanced wireless connectivity.
How many M.2 slots does it have and what speeds do they support?
It has two M.2 slots: one Blazing M.2 (PCIe Gen5x4) and one Hyper M.2 (PCIe Gen4x4), offering very fast storage options.
Can I update the BIOS without a CPU installed?
Yes, this motherboard supports BIOS Flashback, allowing you to update the BIOS without a CPU, RAM, or graphics card.
Buying Guide
When looking at Mini-ITX motherboards like this one, you're trading physical size for potential expandability. You need to consider what CPU you're pairing it with, how much RAM you actually need, and your storage plans. Don't expect to run multiple graphics cards or a dozen hard drives; this board is about maximizing performance in a small footprint. Cooling is also a big deal in ITX, so factor in your case and cooler choices.
Socket AM5
This is the physical connection for your AMD Ryzen CPU. AM5 means you can use the latest Ryzen 7000, 8000, and 9000 series processors, giving you access to current-generation performance. Think of it like the specific plug your car engine needs.
DDR5 8200+ (OC) MHz
This refers to the type and speed of the RAM (memory) the board supports. DDR5 is the newest standard, and 8200+ MHz (when overclocked) is very fast, meaning your system can process data quickly. It's like having a super-fast highway for your computer's short-term memory.
PCIe 5.0 x16
This is the slot where your graphics card goes. PCIe 5.0 is the latest and fastest version, providing maximum bandwidth for high-end GPUs. It's like having the widest, fastest lane on that highway for your graphics card to send and receive data.
Mini-ITX Form Factor
This is the physical size of the motherboard (170x170mm). It's the smallest standard, perfect for compact cases, but it means fewer slots for RAM, expansion cards, and storage drives compared to larger boards. It's like choosing a sports car – small, fast, but less cargo space than an SUV.
Alternatives
If you need more RAM slots, additional PCIe expansion, or more SATA ports, look for Micro-ATX or ATX motherboards with the same AM5 socket and DDR5 support.
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