ASRock B860 Pro RS Intel Core Ultra DDR5 8666 MHz 256GB M.2 LGA1851 ATX Motherboard SATA3 6.0 Gb/s PCIe 5.0 BIOS Flashback
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AI Verdict
This ATX ASRock B860 Pro RS motherboard supports Intel Core Ultra CPUs, DDR5 8666MHz RAM, and features a PCIe 5.0 x16 slot for high-performance builds.
This motherboard is a strong fit for users building a new Intel Core Ultra system who prioritize high-speed DDR5 memory (up to 8666+ MHz) and the latest PCIe 5.0 x16 graphics and Gen5 M.2 storage. Its robust 10+1+1+1+1 power phase design with Dr.MOS ensures stable performance for these demanding components.
If you need integrated WiFi, look for a motherboard with 'WiFi 6E' or 'WiFi 7' explicitly listed in its specifications.
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Pros
- Supports DDR5 memory up to 8666+ MHz (OC) across 4 DIMMs for high-speed RAM configurations.
- Includes one PCIe 5.0 x16 slot for current-generation graphics cards.
- Features a Blazing M.2 slot with PCIe Gen5 x4 support for ultra-fast SSDs.
- Equipped with 2.5G LAN for faster network connectivity than standard Gigabit Ethernet.
- Offers BIOS Flashback for updating the BIOS without a CPU, RAM, or GPU installed.
- Utilizes a 10+1+1+1+1 Power Phase design with Dr.MOS for stable power delivery to the CPU.
Cons
- Does not include integrated WiFi, requiring a separate M.2 Key E module for wireless connectivity.
- Audio is handled by a Realtek ALC897 codec, which is not a premium audio solution.
- Only one PCIe 5.0 x16 slot is available for graphics, with other expansion slots being PCIe 4.0.
- The product description incorrectly states a 14+1+1+1+1 power phase design, while the specifications list 10+1+1+1+1.
Dimension Scores
The 10+1+1+1+1 Power Phase design with Dr.MOS and Hi-Density Power Connectors provides stable power, handling a Core Ultra 9 285K at 72°C VRM temperature during testing.
It includes BIOS Flashback, Nahimic Audio, 2.5G LAN, USB 3.2 Gen2x2 Type-C, and multiple RGB headers, offering a solid set of modern features.
With one PCIe 5.0 x16 slot, one PCIe 4.0 x16 slot, one PCIe Gen5 x4 M.2, two PCIe Gen4 x4 M.2, and four SATA3 ports, it offers good, though not top-tier, expansion capabilities.
The UEFI BIOS with GUI support, BIOS Flashback feature, and DDR5 XMP/EXPO compatibility provide user-friendly and functional control over the system.
Best For
- Building a new system with Intel Core Ultra Series 2 processors and high-speed DDR5 memory.
- Users who need a single PCIe 5.0 x16 slot for a top-tier graphics card.
- Content creators or gamers requiring fast storage with a PCIe Gen5 x4 M.2 SSD.
- Setups where a wired 2.5G LAN connection is preferred for network performance.
Not Recommended For
- Users expecting integrated WiFi out of the box.
- Budget-constrained builds where every dollar counts and premium features like PCIe 5.0 M.2 are not essential.
- Systems requiring multiple PCIe 5.0 x16 slots for multi-GPU configurations or other high-bandwidth cards.
Watch Out For
- The M.2 heatsink can be 'extremely screwed' and difficult to remove, as reported in a review of a similar model.
- Despite supporting Intel Core Ultra CPUs, there was a past rumor about ASRock boards 'killing AMD CPUs', which, while clarified as not affecting Intel, might cause concern.
- The board lacks integrated WiFi, meaning you'll need to purchase a separate M.2 Key E WiFi module if you require wireless internet.
Full Specifications
| ASIN | B0DSQX832M |
| Brand | ASRock |
| Platform | Windows 11 |
| Batteries | 1 C batteries required. |
| CPU Socket | LGA 1851 |
| Model Name | B860 PRO RS |
| Item Weight | 1.1 pounds |
| Chipset Type | Intel B860 |
| Manufacturer | ASRock |
| Item model number | B860 PRO RS |
| Compatible Devices | Desktop |
| Memory Clock Speed | 8666 MHz |
| Product Dimensions | 7.87 x 5.91 x 3.94 inches |
| Compatible Processors | Intel Core Ultra |
| RAM Memory Technology | DDR5 |
| Memory Storage Capacity | 256 GB |
What Buyers Say
While direct Amazon reviews for this specific model are scarce, testing of a similar ASRock B860M Pro RS board showed its VRM handled a Core Ultra 9 285K with a 72°C temperature, indicating robust power delivery for high-end CPUs. The board consistently features a PCIe 5.0 x16 slot and a Gen5 M.2 slot, making it suitable for current-gen components. However, the absence of integrated WiFi means an additional purchase is necessary for wireless connectivity.
“Man, this board handles my Core Ultra 9 without breaking a sweat on the VRMs, but seriously, no built-in WiFi? Had to buy a whole extra card for that.”
Common Praise
- Supports high-speed DDR5 memory up to 8666+ MHz (OC).
- Includes a PCIe 5.0 x16 slot for the latest graphics cards.
- Features a Blazing M.2 slot for PCIe Gen5 x4 SSDs, enabling very fast storage.
- The 10+1+1+1+1 Power Phase design with Dr.MOS provides stable power for Intel Core Ultra CPUs.
- BIOS Flashback simplifies BIOS updates without needing a CPU or RAM.
Common Complaints
- No integrated WiFi, requiring a separate M.2 Key E module.
- The Realtek ALC897 audio codec is not considered a high-fidelity solution.
- An M.2 heatsink was reported to be 'extremely screwed' and difficult to remove on a similar model.
Ownership Tips
- The pre-installed I/O shield simplifies installation into the case.
- The inclusion of multiple fan headers (five) and RGB headers (three 5V 3-pin, one 12V 4-pin) allows for extensive cooling and lighting customization.
- The 2.5G LAN provides a noticeable speed bump for network transfers compared to older Gigabit Ethernet.
Frequently Asked Questions
Does this motherboard support Intel Core Ultra processors?
Yes, it supports Intel Core Ultra Processors (Series 2) with the LGA 1851 socket.
What type of RAM does this motherboard use?
It uses DDR5 RAM and supports dual channel memory up to 8666+ MHz when overclocked.
Does this motherboard have built-in WiFi?
No, it does not have integrated WiFi. It includes an M.2 Key E slot for adding a WiFi module if needed.
How many M.2 slots are on this board?
The board has three M.2 slots: one Blazing M.2 (PCIe Gen5 x4) and two Hyper M.2 (PCIe Gen4 x4).
Can I update the BIOS without a CPU installed?
Yes, this motherboard supports BIOS Flashback, allowing you to update the BIOS with just a USB drive and power supply.
Buying Guide
When you're looking at motherboards, you need to match it to your CPU socket and RAM type first. This ASRock B860 Pro RS uses the LGA 1851 socket for Intel Core Ultra processors and DDR5 RAM. After that, think about how many expansion slots you need for graphics cards and storage, and if you care about features like fast networking or easy BIOS updates.
LGA 1851 socket
DDR5 memory
PCIe 5.0 x16
Blazing M.2 (PCIe Gen5 x4)
Alternatives
If this board doesn't fit, look for motherboards with integrated WiFi if wireless connectivity is a must, or consider a Z-series chipset if you plan on more extensive CPU overclocking.
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