Acer Aspire T690 Aspire T690/Power FH Service Guide - Page 23

System Memory Item Memory slot number Support memory size per socket Support maximum memory size Support memory type Support memory interface Support memory voltage Support memory module package Support to parity check feature Support to Error Correction Code (ECC) feature Memory module combinations Specification 2 slot 256MB to 1GB 2GB DDR2 SDRAM DDR2 667/533 1.8V 240-pin DIMM Yes ECC checking with double-bit detect and single-bit correct You can install memory modules in any combination as long as they match the specifications. NOTE: Dual channel should be enabled always when plug-in 2 same memory size DDRII memory module. Cache Memory Item Specification First-Level Cache Configurations Cache function control Enable/Disable by BIOS Setup Second-Level Cache Configurations L2 Cache RAM type PBSRAM L2 Cache RAM size up to 1MB per core(exclusive) L2 Cache RAM speed One-half the processor core clock frequency L2 Cache function control Enable/Disable by BIOS Setup L2 Cache scheme Fixed in write-back Video Interface Item Video controller Video controller resident bus Video Interface AGP Slot Intel ICH7 PCIE x16 1 Specification Audio Interface Item Audio controller Audio controller Type Audio Channel Audio function control Specification ICH7 AC'97, ALC888 7.1ch Enable/disable by BIOS Setup Chapter 1 17