NorthernFox

I had an M95, but just recently had to RMA it to the company I purchased it from because the buttons refused to work. (I suspect the internal memory chips that stored button profiles died or something) Sadly, the company is 'upgrading' me to a Scimitar. I mean, it's got more buttons, but I vastly preferred the layout on the M95. It was so much easier to tell what button I was pressing. I've not actually received the Scimitar yet, but the M95 will be a very hard mouse to beat.

I've tried the other USB ports, that's not the problem. (Mouse works perfectly fine in any of the USB Ports.) Haven't tried resetting the BIOS or updating it yet, I'll be testing it on a different computer sometime soon. Sidenote: Given that it was working fine for 3~months with the current BIOS, would Windows 10 be able to download an update/etc that can effect the BIOS?

That seems like it'd be an odd fix. The keyboard worked perfectly from the time I got it (roughly August 2015) to about the middle of December. Powered on fine at startup, didn't need to press keys or anything.

To clarify, what happens is about every 3rd to 4th time the computer turns on (from being completely shut down) the keyboard will not seem to receive power at all, at any time during the start up. Not at POST or windows. I can get into BIOS when the keyboard powers itself up though. Switching the BIOS switch on the keyboard doesn't seem to have any effect.

Yes, I can get into BIOS. Like I said, it's only usually about every 3rd or 4th time I boot that the keyboard doesn't seem to get powered on. (Until I replug the USB)

So recently, since about mid-December every 3rd-4th time I boot my computer up, my USB keyboard(Corsair K70 vengeance Red LED) doesn't seem to be getting power when the computer boots up. All it takes to 'fix' the keyboard is to unplug and replug the USB cable. Which makes me think it's somehow the computer not registering the keyboard and sending power to it. I've had the keyboard since about August-ish, and it's worked perfectly fine until a Windows update in December, when the issue first started. Things I've Tried: I'm sure it's not the fault of the USB port the keyboard is plugged into, since the mouse works fine when swapping ports. I'm fairly sure it's not the BIOS power options for USB devices, etc. (I've set it so it sends power to all USB devices whether it recognizes them as a keyboard/mouse or not.) Basically, at this point I'm fairly sure it's either something caused by Windows 10 or the keyboard itself is faulty. If anyone happens to also have this problem, or knows of a fix for it, I'd really appreciate the help.