DVD2Xbox doesn't tell you anything about the chip - those are just options, not information. If you aren't certain, open the Xbox and have a look, because the chip dictates what BIOSes you can run, and also some chips need to be set up in particular ways.
For example, I'm fairly certain that if you have a Smartxx v3 you will get the Smartxx menu when you boot with the power button. If you do have a Smartxx v3 then you can use X2.5035 as your BIOS. You can also flash using the onboard O/S instead of a third party application - in fact you have to use the Smartxx O/S to set up the BIOS banks.
How big is your hard drive? F/G split used to be needed for disks larger than 137GB, but isn't really necessary now until the disk is 1TB or more. If you do have a large drive and want F/G then with a recent BIOS you can just reformat the F/G partitions with XBPartitioner 1.1 and the BIOS will read the partition table from the disk - no need to reflash.