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To get into the bios on these machines,
START WITH the machine OFF
Press AND HOLD the "F1" key
Turn the machine on WHILE CONTINUEING to hold "F1."
Allow the machine to start WHILE STILL HOLDING "F1."
This should get you into the setup/bios, a real poor "green" screen that says "easysetup."
Run your mouse over to the "123 startup" box.
Click that, and you should see "Power on" or "network," click "power on."
Now you should see boxes on top, 1, 2, 3, 4 that represent the boot order. If it is wrong, hit "reset" if nothing is in them, click down below what you want in order. I've got mine as "floppy, cdrom, hdd" as "1, 2, 3"
Hit ok
Hit exit
Should be back to "easy setup"
Hit "restart" at far right.