Intel D865GLC Manual - Page 10

System Processor The D865GLC motherboard supports a single Pentium 4 processor. The processor's VID pins automatically program the voltage regulator on the motherboard to the required processor voltage. In addition, the front side bus speed is automatically selected. The motherboard currently supports processors that run internally up to 3.06GHz and have a 512 KB second-level cache running at full CPU Speed. The processor implements MMX ™ technology and maintains full backward compatibility with the 8086, 80286, Intel386 ™, Intel486 ™, Pentium, Pentium Pro, Pentium II & Pentium III processors. The processor's numeric coprocessor significantly increases the speed of floating-point operations and complies with ANSI/IEEE standard 754-1985. Microprocessor Packaging The Pentium 4 processor comes in a micro PGA 478 package that connects to the motherboard through a socket 478 connector. The package consists of: • Processor card including the processor core and the second-level cache, burst pipelined synchronous static RAM (BSRAM) and tag RAM. • Thermal plate. • Back cover. Second Level Cache The second-level cache is located on the die of the CPU itself. The cache includes burst pipelined synchronous static RAM (BSRAM) and tag RAM. All supported onboard memory can be cached. Processor Upgrades The motherboard can be upgraded with a Pentium 4 processor that runs at higher speeds. System Memory Main Memory The motherboard has four DDR SDRAM Dual Inline Memory Module (DIMM) sockets. Support for up to a maximum memory size of 4GB. The BIOS automatically detects memory type, size, and speed. The motherboard supports the following memory features: • 2.5 V (only) 184-pin DDR SDRAM DIMMs with gold-plated contacts • Unbuffered, single-sided or double-sided DIMMs with the following restriction: D865GLC Motherboard Manual 9