Optiplex GX620 - Windows Vista 64 bit

R282538 Dell System Software

R140595 Dell Device Chipset

R140546 Intel 82945G Express Chipset Family

R233198, R139937, R237617 and R237348 Conexant Modem

R161009, R161014, R143065 Broadcom 57XX

R145149 Analog Devices ADI 198x Integrated Audio