Acer Extensa 5220/5620/5620Z SERVICE MANUAL.
CPU: Intel Merom 2G/2.33G 479
North Bridge: Crestline
South Bridge: ICH8M
VGA: UMA / External VGA Borad
Clock Generator: ICS 9LPRS502 (RTM875T-605)
Audio Codec: ALC268
Audio Amplifier: G1431Q, G1412
KBC (Embeded Controller), SIO: WPC8768L