Acer Aspire E700 Aspire E700 Service Guide - Page 29

System Memory Item Feature Specification • The GMCH system memory controller directly supports one or two channels of memory (each channel consisting of 64 data lines). • DDRII memory 533/667/800MHz support • I/O voltage of 1.8V for DDRII • Only unbuffered DIMMs support • Max. memory bandwidth of 6.4GB/s in single channel or dual channel asymmetric mode, or 12.8GB/s in dual channel interleaved mode assuming DDRII 800MHz • Four banks for all DDRII devices up to 512MB density support, eight banks for 1GB DDRII devices • Using 256MB technology, min. 128MB memory capacity, assuming single channel mode • Using 1GB technology dual channel interleaved mode, max. 8GB memory capacity • Max. 8GB DRAM address decode space • Up to 32 simultaneous open pages per channel support (assuming four banks of eight bank devices) • Improved flexible memory architecture Super I/O Item Chip Feature Description ITE IT8718DX • Meets LPC specification 1.0 • PS/2 keyboard and PS/2 mouse support • Up to four 3.5" disk drives support • Two serial ports, one EPP/ECP parallel port support • Three fans support (including fan speed control, speed monitoring inputs) • IrDA 1.0 SIR protocol with maximum baud rate up to 115.2K bps • Hardware monitor support USB Interface Item Chip Feature Description ICH8DH • Eight USB 2.0 ports support • Dual stack with RJ-45 back panel connector • Dual stack with 1394 connector in rear side • Two header supporting two USB ports for front panel cabling Chapter 1 21