Acer AOD257 Aspire One AOD257 and Happy 2 Netbook Service Guide - Page 52

System Interrupt Specification Hardware IRQ IRQ0 IRQ1 IRQ2 IRQ3 IRQ5* IRQ6 IRQ7* IRQ8 IRQ9* IRQ10* IRQ11 IRQ12 IRQ13 IRQ14 IRQ15 *reserved for PCI device use System Function High precision event timer. Standard PS/2 Keyboard Not in use. Not in use. Not in use. Not in use. Not in use. System CMOS/real-time clock Not in use. Not in use. Not in use. PS/2 Port Touchpad Numeric data processor Not in use. Not in use. 1-42 Hardware Specifications and Configurations