On the lower quality motherboards the USB ports will merely not work at 1000 Hz. The best way to check what the motherboard does and doesn't work at is by going up step by step to 250 hz, 500 hz, and 1000 hz. I should note though that I am still yet to see a US KOC work above 250 Hz, whereas the JP KOCs work at the full 1000 hz. (Which is nothing short of awesome.)
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