Computex: AMD Releases 760MP Chipset For Dual AthlonMP

The AMD760MP Chipset

The AMD762 provides two EV6 buses, one to each AthlonMP, and a DDR-only memory controller that runs the memory at the same clock as the processor bus, either 100 MHz (200 MHZ DDR) or 133 MHz (266 MHz DDR). 762 does not support any PC100 or PC133 SDRAM, just as its older brother the AMD760 chipset. Tyan's K7 Thunder motherboard, which is currently the only platform with AMD760MP that is available on the market, requires registered DDR-DIMMs. This DIMM type comes with additional buffers to reduce the load of the memory controller. The K7 Thunder does not run with the common unbuffered DDR-DIMMs, although the AMD760MP specifications allow the support of up to two of them. In a few weeks or months, we will see low-end AMD760MP motherboards that will probably support two of the common unbuffered DIMMs as well. AMD762 supports the typical ECC goodies, including 'memory scrubbing' as you would expect from a workstation/server chipset. The final feature that 762 has over the single-Athlon 761 north bridge of AMD760 is the support of 64 bit PCI or short PCI64. While PCI64 is rather uninteresting for desktop as well as most workstation users, it can be of importance for servers to accommodate cards with high I/O loads.