PC will not start Windows after wireless PCI card is removed.

[Accessless]

I think when I started all this it was disabled, but since setting everything to defaults, it is now enabled.

Wants to be disabled. Also, is this just a run of the mill wireless adapter (plugs into a PCI slot) or a Mini PCI expansion card provided by the motherboard manufacturer? [I think they're called mini PCI slots, I could be mistaken]

[Computer_Commando]

P.31
http://support.dell.com/support/edocs/systems/Alw_dt_Area_51/en/dm/dm_en.pdf

Integrated Devices
LAN1 & LAN2 Option ROM - Disable network controller boot option

Inserting card could turn this off, removing card could turn it back on.  It's the only thing that could stop the OS from booting.  It's trying to boot from a network that's not there.

[Blue Baron]

I have replaced it with a USB connected wireless adapter.  I did this after trying to remove the old card.

[Blue Baron]

The ability to boot from the network is disabled and stays that way whether the card is in or out.

[Accessless]

What happens if you unplug your hard & disc drives with the wireless adapter pulled out? Does the system stop after completing the POST or do you receive the no boot device error?

I'm not to sure what this would mean at the moment but it might give us some leads to work with.

[Blue Baron]

I have set the hard disk as the first boot device and then under the hard disk boot options, set the add in cards as then boot device.  As a result I got the no boot disk error. 

[patio]

I have set the hard disk as the first boot device and then under the hard disk boot options, set the add in cards as then boot device.  As a result I got the no boot disk error.

Not sure what this means at all...

[Blue Baron]

It was an attempt to see if somehow the computer had made the card a boot device.

[Blue Baron]

OK, the problem has been solved.  I don't really understand what it was, but it seems that there was a conflict with SATA controllers, maybe because of the Promise RAID PCI card I have in there does not get along with the one that came on the mother board.  In any case I went into the SATA settings and changed them from "All Enabled" to just SATA 0 enabled.  The system sees my RAID as a SCSI drive even though it is SATA, but that left only the C drive as and SATA drive.  I presume that by enabling only the SATA 0 controller, I was setting The C drive as the only SATA drive.  What that all had to do with the wireless PCI card, I have no Idea.  Thank you to all of you who tried to help me.  I certainly learned a lot more about the BIOS than I did before.

[Computer_Commando]

...1.  because of the Promise RAID PCI card I have in there does not get along with the one that came on the mother board.
2.  The system sees my RAID as a SCSI drive even though it is SATA ...

1.  This is the 1st time you even mentioned that.
2.  BIOS sees any type of add-in controller card as SCSI, even if SCSI, IDE, SATA, etc.

[Accessless]

Yeah, that would have been helpful to know but then no one actually asked for his computer specs.

[Blue Baron]

Now that you know about the RAID PCI card,  can you tell me what caused the problem with the wireless card?