Corsair Memory has announced that it is now offering two new eXtreme Memory Speed ("XMS") modules tailored specifically for ultra-performance computing enthusiasts. The first part, Corsair part number CMX512-3200C2, is a 512 MByte module guaranteed to operate at 400 MHz with a Column Access Strobe ("CAS") latency of just two cycles. The second part, part number CMX256A-3200C2, is a 256 MByte DDR DIMM with the same performance specifications. Each XMS3200 module is tested in a test fixture based on a currently popular motherboard based on a performance chip set such as Via's KT333 Athlon, Intel's i845E, or SiS' 645 Pentium IV platform. The testing rig is set to exhaustively exercise the memory at the following settings:

Memory bus speed: 2x200 MHz
CAS latency: 2.0 clock cycles
RAS precharge: 3 cycles RAS-to-CAS delay: 3 cycles
RAS active to precharge: 6 cycles
Command rate: 1T (1 cycle)
Population: 1 module/system

The CMX256A-3200C2 is built using the same 32Mx8 DDR SDRAM components as the CMX512-3200C2. The RAMs have been carefully screened to meet these demanding performance requirements. The modules have been extensively qualified in motherboards based on chip sets from Via, Intel, and SiS that are capable of supporting the required high-speed memory bus. The modules are shipped with a pre-installed aluminum heat spreader. Details on Corsair's XMS qualification and testing can be found on Corsair's web site, at www.corsairmemory.com/main/ttrg-xms.html. Both modules are available immediately.

Source: Corsair