2003-04-14 Intel Bonanza Canterwood based motherboard with support for dual DDR-400 channels. Released as D875PBZ.
2003-04-15 Intel 875P High end chipset for the P4, formely known as Canterwood. Identical to Springdale, but adding ECC support and a new "turbo mode", called PAT (Performance Acceleration Technology), reducing latencies when using dual channel DDR400 and the 800 MHz bus. PAT is expected to raise performance by 3-5% compared to the Springdale. Priced at $50 at launch.