VAIO User Guide (primary manual)
Page 80
...desktop. 1 Turn off and disconnect your device. 2 Reconnect your device. 3 Turn on the Network Adapters category, and then select "Realtek RTL8139 (A/B/C/8130) PCI Fast Ethernet NIC." 5 Click the Properties button. 6 Remove the checkmark from a power saving mode. For memory upgrades, use only 3.3V 64-bit PC-133 SDRAM DIMM modules. VAIO Computer... User Guide ❑ Increasing the system memory may also help.
...desktop. 1 Turn off and disconnect your device. 2 Reconnect your device. 3 Turn on the Network Adapters category, and then select "Realtek RTL8139 (A/B/C/8130) PCI Fast Ethernet NIC." 5 Click the Properties button. 6 Remove the checkmark from a power saving mode. For memory upgrades, use only 3.3V 64-bit PC-133 SDRAM DIMM modules. VAIO Computer... User Guide ❑ Increasing the system memory may also help.