ASRock introduces AMD B850 ROCK motherboard series with 64MB BIOS for future Ryzen AM5 CPUs

ASRock announces Rock Series B850 and B860 motherboards, four models cover ATX and mATX

ASRock has announced a new “Rock Series” motherboard lineup, starting with four boards split across AMD B850 and Intel B860. The list includes B850 Rock WiFi 7, B850M Rock WiFi, B860 Rock WiFi 7, and B860M Rock WiFi. ASRock positions Rock as a mainstream DIY line with built-in Wi-Fi, 2.5GbE, PCIe 5.0 support, and a pre-installed I/O shield.

Source: ASRock

On the AMD side, the B850 Rock WiFi 7 is an AM5 ATX board for Ryzen 9000, 8000, and 7000 series CPUs. ASRock lists a 9+2+1 phase VRM design, four DDR5 slots rated up to DDR5-8000+ (OC), a PCIe 5.0 x16 slot, and two M.2 slots (one Gen5 x4 and one Gen4 x4). The B850M Rock WiFi is the mATX option. ASRock lists two DDR5 slots up to DDR5-8200+ (OC), one PCIe 5.0 x16 slot, two M.2 slots (Gen5 x4 + Gen4 x4), and Wi-Fi 6E.

Source: ASRock

ASRock also calls out a 64MB BIOS ROM for the B850 Rock series, aimed at supporting future AM5 processors via firmware updates.

On Intel, the B860 Rock WiFi 7 is an LGA1851 ATX board for Core Ultra (Series 2). ASRock lists four DDR5 slots up to DDR5-8666+ (OC) with CUDIMM support, one PCIe 5.0 x16 slot, and three M.2 slots (one Gen5 x4 plus two Gen4 x4), along with Wi-Fi 7.

Source: ASRock

The B860M Rock WiFi is the smaller mATX model with two DDR5 slots up to DDR5-8333+ (OC), two M.2 slots (Gen5 x4 + Gen4 x4), and Wi-Fi 6E. ASRock also lists a rear USB 3.2 Gen2x2 Type-C port on this board.

ASRock says availability may vary by region. There is no official MSRP for these motherboards.

ASRock ROCK Motherboard Series
VideoCardzB850 Rock WiFi 7 (ATX)B850M Rock WiFi (mATX)B860 Rock WiFi 7 (ATX)B860M Rock WiFi (mATX)
CPU socket + chipsetAM5 + AMD B850AM5 + AMD B850LGA1851 + Intel B860LGA1851 + Intel B860
CPU supportAMD Ryzen 9000, 8000, 7000AMD Ryzen 9000, 8000, 7000Intel Core Ultra (Series 2)Intel Core Ultra (Series 2)
Form factorATX 12.0 x 9.6 in (30.5 x 24.4 cm)Micro ATX 9.6 x 8.9 in (24.4 x 22.6 cm)ATX 12.0 x 9.6 in (30.5 x 24.4 cm)Micro ATX 9.6 x 8.6 in (24.4 x 21.8 cm)
Power design9+2+1 phase, Dr.MOS (VCore+SOC+MISC)6+1+1 phase, Dr.MOS (VCore)8+1+1+1+1 phase, Dr.MOS (VCore+GT+SA)5+1+1+1+1 phase
Memory slots + max4x DDR5, up to 256GB2x DDR5, up to 128GB4x DDR5, up to 256GB2x DDR5, up to 128GB
Memory OC ratingUp to DDR5-8000+ (OC), ECC/non-ECC unbufferedUp to DDR5-8200+ (OC), ECC/non-ECC unbufferedUp to DDR5-8666+ (OC), supports CUDIMM, XMP 3.0xUp to DDR5-8333+ (OC), supports CUDIMM, XMP 3.0x
PCIe slots (physical)1x PCIe 5.0 x16 (x16)1x PCIe 4.0 x16 (x4)2x PCIe 4.0 x11x PCIe 5.0 x16 (x16)1x PCIe 3.0 x16 (x4)1x PCIe 5.0 x16 (x16)1x PCIe 4.0 x16 (x4)1x PCIe 5.0 x16 (x16)1x PCIe 4.0 x1
M.2 (NVMe)1x M.2 Gen5 x4 (2280)1x M.2 Gen4 x4 (2280)1x M.2 Gen5 x4 (2280)1x M.2 Gen4 x4 (2260/2280)1x M.2 Gen5 x4 (2280)2x M.2 Gen4 x4 (2230/2242/2260/2280 + 2280)Intel VMD support listed1x M.2 Gen5 x4 (2280)1x M.2 Gen4 x4 (2280)
SATA4x SATA 6Gb/s4x SATA 6Gb/s4x SATA 6Gb/s4x SATA 6Gb/s
Wired LAN2.5GbE (Dragon RTL8125BG)2.5GbE (Dragon RTL8125BG)2.5GbE (Dragon RTL8125BG)2.5GbE (Dragon RTL8125BG)
WiFi + BluetoothWiFi 7 (802.11be 2×2), Bluetooth 5.4WiFi 6E (802.11axe), Bluetooth 5.3WiFi 7 (802.11be 2×2), Bluetooth 5.4WiFi 6E (802.11axe), Bluetooth 5.3
Display outputs1x HDMI 2.1 (up to 4K 120Hz listed)1x HDMI 2.1 (up to 4K 120Hz listed)1x DisplayPort 1.4 (up to 4K 120Hz listed)1x HDMI 2.1 (up to 4K 120Hz listed)1x HDMI 2.1 (up to 4K 120Hz listed)1x DisplayPort 1.4 (up to 8K 60Hz / 5K 120Hz listed)
Rear USB (as listed)1x USB 3.2 Gen2 Type-A (10Gb/s)1x USB 3.2 Gen2 Type-C (10Gb/s)2x USB 3.2 Gen14x USB 2.04x USB 3.2 Gen12x USB 2.01x USB 3.2 Gen1 Type-C6x USB 3.2 Gen12x USB 2.01x USB 3.2 Gen2x2 Type-C (20Gb/s)3x USB 3.2 Gen12x USB 2.0
BIOS size512Mb UEFI512Mb UEFI256Mb UEFI256Mb UEFI
BIOS Flashback buttonYes (rear button listed)Yes (rear button listed)Not listedNot listed
AudioRealtek ALC897 (7.1-channel)Realtek ALC897 (7.1-channel)Realtek ALC897 (7.1-channel)Realtek ALC897 (7.1-channel)
OS support (as listed)Windows 10 64-bit / Windows 11 64-bitWindows 10 64-bit / Windows 11 64-bitWindows 11 64-bitWindows 11 64-bit

Source: ASRock