1-16User’s Guide1.7 Second-level CacheThe board may come without cache or with 256-KB or 512-KBpipelined-burst second-level cache. Refer to the following table for thepossible cache configurations that your board might have.Table 1-9 Second-level Cache ConfigurationsCacheSizeData RAM(9 ns)Location Tag RAM(15 ns - U39)CacheableMemory256 KB 32K x 32 x 2 pcs U15, U22 orU14, U2132K x 8 x 1 pc 64 MB512 KB 32K x 32 x 4 pcs U14, U15,U21, U2232K x 8 x 1 pc 64 MB512 KB 64K x 32 x 2 pcs U15, U22 orU14, U2132K x 8 x 1 pc 64 MB1.8 Video FunctionThe onboard video controller and MPEG decoder enable the system tosupport video functions, as well as enhance the video display. AnAMC feature connector is also incorporated in the board design for fullhardware MPEG support.1.8.1 Upgrading the VGA MemoryObserve the ESD precautions when installingcomponents. See section 1.2.The 1-MB onboard VGA memory is upgradable to 2 MB. Theadditional memory allows your VGA to display higher resolutions andmore colors when appropriate VGA driver is used.