If you need to get into the BIOS and you're not able to do that before the BIOS times out (due to high load), insert the following in you vmx file:

<code>
bios.forceSetupOnce = "TRUE"
</code>

You can also extend the timeout period:

<code>
bios.bootDelay = "5000"
</code>
This adds 5 seconds to the boot timeout.