Acer Altos 500 Altos 500 Service Guide - Page 47

Memory Upgrade The three 168-pin sockets onboard supports SDRAM-type DIMMs only. You may install 16-MB, 32-MB, 64-MB, or 128-MB DIMMs for a maximum 384-MB system memory. The SDRAM DIMMs should work under 3.3 volts; 5-volt memory devices are not supported. Memory modules with a timing setting of 66 MHz are defined under unbuffered DIMM specifications, while 100 MHz modules are defined under Intel PC-100 SDRAM specifications. Do not use both 66 MHz (unbuffered) and 100 MHz (registered) SDRAM together. This might cause your system to malfunction. Each of the sockets represents one independent bank. This allows you to install DIMMs with different capacities to form a configuration. Memory Configurations Bank 0 16 MB 16 MB 16 MB 32 MB 32 MB 32 MB 64 MB 64 MB 64 MB 128 MB 128 MB 128 MB Bank 1 16 MB 16 MB 32 MB 32 MB 64 MB 64 MB 128 MB 128 MB Bank 2 16 MB 32 MB 64 MB 128 MB Total Memory 16 MB 32 MB 48 MB 32 MB 64 MB 96 MB 64 MB 128 MB 192 MB 128 MB 256 MB 384 MB BIOS Utility 2-15