Asus P55SP4 P/I-P55SP4 User's manual - Page 7

a P/I-P55SP4 User's Manual Since we are assuming that your mainboard is already installed in a system, it was most likely set up by your system dealer according to the design specifications of your computer. This could mean that your mainboard's current settings are not the same as the defaults shown in this manual. Your system manual may have additional information on how the mainboard should be set up. If you want to change the existing configuration, consult all of your system documentation. Also be certain that opening up and working on the system yourself won't violate your system warranty. Most system vendors do allow you to open the system to install expansion cards or additional peripheral equipment. This manual provides all the information you need to upgrade or change the setup of the board. If you don't feel confident of your ability to work on the computer yourself, ask your dealer or a qualified technician to do it for you. Main Features The P/I-P55SP4 has many performance and system features integrated onto the mainboard, including the following: • Supports 75, 90, 100, 120, 133 or 150MHz P54C /CS /CQS Pentium CPUs in a ZIF (Zero Insertion Force) Socket 5 or 150 and 167MHz P55C Pentium CPUs in a ZIF Socket 7. • SIS 551X chipset • Uses 72-pin SIMM DRAM modules of 1MB to 128MB in multiple configurations up to 512MB, with support for both Fast Page Mode and Extended Data Output (EDO) SIMMs. • Write-back "Level 2" external static RAM cache. There are two cache options, SRAM sockets and a cache module socket. The sockets for individual SRAM chips allow installation of 256KB, 512KB or 1MB of Asynchronous 15ns SRAM. 1 - 2