update Bios if current Bios does not allow setting CSMlegacy mode?

dkaz1
dkaz1 Member Posts: 2 New User

acer axc-603c

i can't change the setting to allow booting from a DOS USB(the page that has the boot stuff does not have the CSM Legacy option)  i looked on the bios version web page for my model, there are 4 listed,  I have the oldest bios in the list)

this is an ACER document direct Quote:

 

Some Aspire XC-603(G) models do not have an option to enable "Launch CSM" within the BIOS. You will need to update the BIOS to a version that supports this feature if you want to install another operating system.

 

So you need to set to Launch CSM to load it,  but you have to have it loaded to get the CSM option?  WTF????

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