Specifications

2-36 Compaq AlphaServer ES40 Owner’s Guide
2.9.1 Windows NT and Auto Start
On Windows NT systems the Auto Start option is enabled by default,
which causes the operating system to start automatically whenever the
machine is power cycled or reset.
If you have more than one version of Windows NT installed (for example,
Version 4.0 and Version 5.0), the version you select as the primary operating
system starts automatically if Auto Start is enabled.
If you do not want your Windows NT system to boot an operating system
automatically, change the Auto Start setting on the CMOS Setup screen to
Disabled.