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Why make USB 2.0 ports in new motherboard?

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Some USB3 controllers (even integrated ones) don't play nice either in BIOS/EFI, or pre OS load, rendering them useless when trying to install Windows, for example.

 

Interesting insight. You'd think they would just operate as USB 2.0 ports without the USB 3.0 drivers loaded. From googling briefly it sounds like many just don't function without the USB 3.0 drivers being loaded in the OS. Definitely a good reason to keep a USB 2.0 controller and ports on board.

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what i wanna know is why is there still an antiquated PS2 port. geez some boards still have a standard pci slot.

 

PS2 port is for the Model M ;-)

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PS2 port is for the Model M ;-)

 

Also lots of gamers using good mechanical keyboards still use PS2 because of n-key rollover 

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A manufacturer can diversify their product line up this way and charge progressively more as they put more USB 3.0 ports inside. It's all marketing and profit maximization.

Actually, there's a more SENSIBLE reason - it's called "backward compatibility".  (It's also why USB 1.1 ports held on even after the USB 2.0 specification was not only finalized, but supported natively by motherboard chipsets; Intel's own G31 - Bear Lake - and successor G41 - Eagle Lake - both support two USB 1.1 ports, in addition to the USB 2.0 ports.)  Not everyone wants to run the latest and greatest OS - even on a new motherboard.  I'm talking Linux distributions - not Windows.

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