Acer Aspire M3-581T Acer Aspire M3-581T and M3-581TG Notebook Service Guide - Page 34

System Board Major Chips Item Core logic VGA LAN USB 3.0 Embedded controller Bluetooth Wireless TPM PCMCIA Audio codec Card reader Specification Intel Panther Point HM77 NVIDIA Optimus™ GeForce GT640M BCM57780 RT9712AGS NUVOTON NPCE795L Atheros AR3012, Broadcom BCM20702 BCM943227HM4L NUVOTON NPCT420R(For future SKU) N/A Realtek ALC271X Realtek RTS5209 Processor Item Central Processing Unit (CPU) type CPU package Core Logic Chipset Specification Intel® Sandy Bridge Core i7/i5/i3 Processor FC-BGA 1023 Multi execution cores·  A 32-KB instruction and 32-KB data first-level cache (L1) for each core  A 256-KB shared instruction/data second-level cache (L2) for each core  Up to 4-MB shared instruction/data third-level cache (L3), shared among all cores Mobile Intel® HM77 Processor Specifications Item i7-2637M i5-2467M i3-2367M CPU Speed (GHz) 1.7 1.6 1.4 Cores 4 2 2 Mfg Tech Cache Size Package 32 nm 32 nm 32 nm 4 MB 3 MB 3 MB BGA 1023 BGA 1023 BGA 1023 1-24 Hardware Specifications and Configurations