ASUS PRIME B860M-K Intel motherboard & Ultra 5 245K CPU combo with Shin-Etsu X-23-7868-2D thermal grease
- LGA 1851
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ASUS
LGA 1851 mATX motherboard paired with a 125 W 3 nm Intel Ultra 5 245K CPU, 12+1+2+1 80 A DrMOS VRM, DDR5-7600 AEMP III support, triple M.2 with PCIe 5.0 and 4.0 heatsinks, 2.5 Gb Ethernet.
model TUF GAMING B860M-PLUS
+CPU +Ultra 5 245K
This bundle pairs the ASUS TUF GAMING B860M-PLUS motherboard with the Intel Ultra 5 245K processor and Shin-Etsu X-23-7868-2D thermal grease. The LGA 1851 socket board uses an 80A DrMOS VRM across 12+1+2+1 phases fed by dual 8-pin ProCool connectors on an 8-layer PCB. It targets builders who want a ready-to-install platform for Core Ultra Series 2 processors.
Four DDR5 slots support AEMP III profiles up to DDR5-7600+(OC) with SafeDIMM reinforcement and DIMM Fit Pro tuning. Storage uses three M.2 slots: one PCIe 5.0 x4 at 128Gbps and two PCIe 4.0 x4 at 64Gbps, each with a dedicated heatsink. The CPU brings 24MB L3 cache and 26MB L2 cache for high-throughput workloads.
Rear I/O includes a USB 20Gbps Type-C port with DisplayPort Alt Mode and a 2.5Gb Ethernet jack protected by TUF LANGuard. A front-panel USB 10Gbps Type-C header is also provided. The CPU operates at a 125W base power on TSMC N3B 3nm silicon with integrated Intel Graphics. The included grease rates 6.2 W/m·K conductivity and 0.07 °C·cm²/W resistance with a suggested two-year replacement cycle.
| Brand | ASUS |
|---|---|
| Model | TUF GAMING B860M-PLUS+Ultra 5 245K |
| CPU Socket Type | LGA 1851 |
Other versions of this model
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The board uses AEMP III technology to optimise DDR5-7600+(OC) speeds on compatible kits, and the reinforced SafeDIMM slots with DIMM Fit Pro tuning help maintain stability with your current modules.
Enter the UEFI BIOS to confirm the CPU is detected at its 3 nm Arrow Lake architecture with 24 MB L3 and 26 MB L2 cache, check that all three M.2 slots report PCIe 5.0 x4 and dual PCIe 4.0 x4 links, and ensure the 2.5 Gb Ethernet and rear USB 20 Gbps Type-C with DP Alt Mode are active.
The package supplies the motherboard, the Intel Ultra 5 245K processor and a tube of Shin-Etsu X-23-7868-2D thermal grease (6.2 W/m·k conductivity, 0.07 °C·cm²/W resistance, grey, 100 Pa·s viscosity), but no cooling device is included, so a compatible LGA 1851 cooler must be purchased separately.
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