Acer Aspire S7-391 Acer S7-391 Notebook Service Guide - Page 27

System Board Item Core logic Graphics USB 3.0 Wireless LAN + Bluetooth Audio codec Card reader Specification Mobile Intel® HM77 Express Chipset Integrated in the Mobile Intel® HM77 Express Chipset Integrated in the Mobile Intel® HM77 Express Chipset MD222 Realtek 271X VB6 Built-in Processor Item CPU type Core logic Chipset Specification Third Generation Intel® Core™ Mobile Processor Family Four execution cores·  L1 cache size: Two 32 KB instruction caches and two 32 KB data caches  L2 cache size: Two 256 KB  L3 cache size: 3 to 8 MB Mobile Intel® HM77 Express Chipset Processor Specifications Item i3-3217U i5-3317U i5-3427U i7-3517U i7-3667U CPU Speed 1.8 GHz 1.7 GHz 1.8 GHz 1.9 GHz 2.0 GHz Cores/ Max Turbo Mfg L3 Threads Freq Tech Cache 2C/4T 1.8 GHz 22 nm 3 MB 2C/4T 2.6 GHz 22 nm 3 MB 2C/4T 2.8 GHz 22 nm 3 MB 2C/4T 3.0 GHz 22 nm 4 MB 2C/4T 3.2 GHz 22 nm 4 MB Max TDP 17 W 17 W 17 W 17 W 17 W Core Voltage 1.1 V 1.1 V 1.1 V 1.1 V 1.1 V Heat Sink Fan True Value Table CPU Temperature 40 48 55 60 65 Fan Speed (RPM) 3470/3530 4818/6922 5228/8777 5585/10031 6553/11170 SPL Spec (dBA) 19 22 25 28 31 Hardware Specifications and Configurations 1-19