The Simple Performance Equation: More Memory = A Faster ComputerThe VisionTek 1 x 8GB PC3-8500 DDR3 ECC Registered 8K 1066MHz Low Voltage RDIMM Memory Module is a Quad Rank Registered DDR3 SDRAM DIMM module. This module is JEDEC MO-269 R/C H DDR3 SDRAM Registered DIMM. The module has all the addresses and control signals buffered to reduce capacitive loading. The module utilizes a phase lock loop to reduce the capacitive loading on the clock signals and to synchronize all SDRAM input clocks with the system clock. A 256 byte Temp Sensor serial EEPROM on board can be used to store module information such as timing, configuration, density, etc. as well as to monitor the module temperature and prevent the module from exceeding the maximum operating temperature. The VisionTek 900713 memory module is 8GByte and organized as 1GX72 ECC Quad Rank array using (36) 256MX8 DDR3 SDRAMs in lead-free FBGA packages.The module PCB is fabricated using the latest technology design, twelve-layer printed circuit board substrate construction with low ESR decoupling capacitors on-board for high reliability and low noise.Maxing out your memory is the most cost-effective, easy DIY install solution to dramatically speeding up file transfers, app launches, and many other memory intensive tasks. Every VisionTek memory module is test certified to the JEDEC standard for assured speed and reliability. For peace of mind ownership, the upgrade comes backed by our Limited Lifetime warranty.