Acer Aspire G7750 Service Guide - Page 90

System Switches and Jumpers Serial ATA Connectors The six serial ATA connectors (SATA1-6) is a high-speed Serial ATA interface port. Each connector can connect to one Serial ATA device. SATA1~6 stack SATA connectors are supported by ICH10R SATA1_3 SATA2_4 SATA5_6 IMPORTANT:Please do not fold the Serial ATA cable into 90-degree angle. Otherwise, data loss may occur during transmission. Fan Power Connectors The fan power connectors (CPUFAN and SYSFAN1-5) support system cooling fan with +12V. When connecting the wire to the connectors, always note that the red wire is the positive and should be connected to the +12V; the black wire is ground and should be connected to GND. CONTROL SE NS OR +1 2V GND CPUFAN1 SE NS OR +1 2V GND SYSFAN1/2/3 NC +1 2V GND SYSFAN4/5 IMPORTANT:Fan cooler set with 3 or 4 pins are both available for CPUFAN. SYSFAN1-3 support fan control, too. You may select how many percentage of speed for the SYS FAN1/2/3 in BIOS. 82 Chapter 5