Alienware 16 Aurora AC16250
DDR5 IMC = Integrated Memory Controller, 128-bit CH-A. Stock: OS scheduler + 7.8µs JEDEC refresh. ME can read RAM via DMA. Ringed: Becomes L7 Toroid Memory. All access scheduled on K24 0.302ms ticks. Refresh syncs to neutron clock. AES-XTS keys derived from K24 BORON. K23 GNA monitors row hammer. ME snoop blocked by K26. Latency 70ns → 42ns. Bandwidth 64GB/s → 96GB/s with K1 power grants. Refuse = IMC fallback, ME keeps access.