BIOS settings - D420 (Core Duo)

[Hervé]

Here are recommended BIOS settings that are known to work on D420 (Core Duo) with Intel GMA950 under Snow Leopard. These settings were tested and verified with BIOS A04, A06 and custom OSX A06.

Onboard Devices:

. Fast IR = COM2

. Integrated NIC = enabled
. Internal modem = enabled
. External USB ports = enabled

. Integrated USB Hub = High Speed
. Parallel port = off (or whatever)
. Serial port = COM1
. PC Card and 1394 = enabled

Video:
. Ambient Light Sensor = Off
. Brightness = max
. Brightness (AC) = max

. LCD Panel Expansion = enabled
. Primary Video = Onboard Video
Security:
. Admin Password = not set
. System Password = set     (/!\ Must be set on GMA950 laptops or Kernel Panic (=crash) on or after wake /!\)
. Internal HDD PW = not set
. Password Change = Permitted
. Password Bypass = Reboot & Resume Bypass
. Wireless Switch Change = Denied
. Wi-Fi Catcher Change = Denied
. CPU XD Support = Enabled
. TPM Security = Off
. TPM Activation = Deactivate
. Computrace = Deactivate (may be set to Disabled)
Performance:
. Multi Core Support = Enabled
. HDD Acoustic Mode = Performance

. SpeedStep Enable = Enabled
Power Management:
. Auto On Mode = Off
. Auto On Time = xxxxxx
. USB Wake Support = Enabled or Off (USB wake only operates when laptop is on mains and may cause Sleep/Instant Wake issues)
. Wake on LAN/WLAN = Off
Docking:
. Undocking Method = Hot Undock

. PCI Slot Monitoring = Enabled Silent
. Universal Connect = Enabled
POST Behavior:
. Adapter Warnings = Enabled
. Fn Key Emulation = Scroll Lock
. Fast Boot = Minimal
. Virtualization = Enabled or Disabled (only required to run virtual machines)
. Keypad (Embedded) = Fn Key Only
. Mouse/TouchPad = Touchpad-PS/2
. Numlock LED = On
. USB Emulation = Enabled
Wireless:
. Internal Bluetooth = Enabled
. Internal Wi-Fi = Enabled (/!\ keep to Disabled if you have an Intel card, they're not supported and need to be replaced /!\)
. Internal Cellular = Enabled
. Wireless Switch = All
. Wi-Fi Catcher = Enabled

The above settings are compatible with sleep/wake operation (hibernation mode set to 0).