Acer AO752 Service Guide - Page 26

CPU Fan True Value Table CPU Temperature (Celsius) Fan Speed (RPM) 38 2400 43 3300 50 4000 56 4500 SPL Spec (dBA) 23 26 29 31 Throttling 50%: On= 90°C; OFF=80°C OS shut down at 95°C; H/W shut down at 85°C North Bridge Specifications Item Specification Chipset Intel Crestline GS45 SFF Package FCBGA 1363 balls Features • Processor hosts bus supports 667/800/1066MHz FSB support. • Supports Dual Channel DDR2 SDRAM at 667/800MHz • Integrated SDRAM controller up to 8GB (2 SODIMM support) • DMI x2 and DMI x4 for connection between GMCH and ICH9M South Bridge Specifications Item Chipset Package Features Specification ICH9M SFF BGA 676 balls • Upstream accelerated Hub architecture interface for access to GMCH. • PCI Express Base Specification, Revision 1.1 support. • PCI 2.3 interface. (4 PCI Request/Grant pairs). • ACPI Power Management Logi Support. • Enhanced DMA controller, interrupt controller, timers functions. • Integrated Serial ATA host controllers with independent DMA operation on six ports and AHCI support. • USB 1.1 and USB 2.0 Host controllers. • Supports Intel High Definition Audio (Intel HD Audio) Interface. • Supports Intel® Matrix Storage Technology. • Supports Intel® Active Management Technology. • Low Pin Count (LPC) interface. • 6 PCle ports. System Memory Item Memory size DIMM socket number Supports memory size per socket Supports maximum memory size Supports DIMM type Supports DIMM Speed Specification 0MB (No on-board Memory) 2 sockets 2GB 4GB for 64bit OS (with two 2GB SO-DIMM) DDR2 Synchronous DRAM 800/667 MHz 16 Chapter 1