I built a system with the P67 Extreme4 B3 motherboard back in May, and it still has the most current BIOS version that was out at that time (1.70). Should I update to a new version? If so, which one? I have read that the most recent version does not work well with USB keyboards and mice.
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What problem are you having with the system? If none, then you shouldn't upgrade the BIOS.