what mouse is it

Is there a chance that both mice are messed up? If you have two Logitech mice, I wouldn't be that surprised. Logitech mice historically have this issue after a while of use.

Current mouse: CM Storm Spawn, connected by USB
Other mouse I tried: Razer Orochi, also by USB

Both mice had their respective drivers fully updated, and were only connected individually, never both at the same time. I believe to switch them, I uninstalled their individual drivers, and then booted my PC with one or the other connected.

Also, thanks already. Something about feeling cared about during these difficult times.

Last time my PC broke (posted about it on here before), it took me all summer to fix it. Turns out USB drivers were the issue, and I hadn't needed to buy a new motherboard...

probably a cable issue on the wire itself

try usb ports on the front and back of the pc

Yeah, I was gonna say that hopefully it isn't a motherboard issue, because thaaaaaat would suck.

Tried them both, no difference.
Also, if it were a cable issue, why does the same motion not cause any trouble, yet when in TF2, everything poops itself with a very low threshold of poopability?

Have you tried other games? Would be pretty weird if it's game specific or even engine specific.

I think it's the intensity of the game. Skyrim pooped almost instantly. It has to do with actual motion in-game, as opposed to menu-interaction.
However, I'm almost embarrassed to say I'm glad Ace of Spades works. I need some respectable, fair mechanics FPS on hand to IV.

But yeah, not TF2-specific, not Source Engine specific.

That is quite weird. I have no idea.

what polling rates do you use on the mouse?

I tried lowering it to 125hz (lol) even, but I normally run at 500hz. There was seemingly no effect in the poopification threshold.

I forgot to mention: the mouse also occasionally disconnects in simple operations during regular windows usage (yes, also am on Windows 7). I'm guessing it has to do with a power issue at the USB hub/motherboard. What are my potential plans for action here? I'm hesitant to open up my computer, but could it be something as simple as dust?

The problem gets exacerbated by usage. So, trying to repeatedly reconnect/connect the mouse, especially if something intensive is running, will cause the disconnecting to happen much more frequently.

If I were to go into my computer to check for things, what would you say is best to look for?

Again, thanks for all the help so far everyone, I really appreciate it.

Try the mice in a different computer on the ridiculous off-chance that both mice are somehow dying simultaneously (which is very unlikely). Otherwise, it sounds like it's a possible issue with your motherboard (if you're certain it's not your drivers).

I don't see how it can be anything but hardware if it's a randomly arising issue. If no changes occur, especially on the software end, then it has to be either the mice, the USB ports, or worst case scenario, the motherboard, correct?
Then, if it's the USB hubs or the motherboard, is there anything I can do besides getting a new motherboard?
Anything to look for on the USB ports or motherboard for indicative damage/problems?

See if it happens when your keyboard is unplugged. I've had a similar thing happen to me and it turned out that my keyboard was dying

No difference. I've even tried unplugging as many things from the USB ports as possible in an effort to reduce power usage and see if that was an issue, but to no avail. It seems mouse specific, although I would guess it's hard to force whatever overloads are occurring through the keyboard.

Keep it broken, I enjoy subbing in as roamer

mice: possible but that would be one awful coincidence.

USB ports: also another awful coincidence that all of them would be messing up at the same time. If your keyboard or other USB devices don't have any issues, then there's pretty much no chance it's your USB ports.

motherboard: that's what I'm thinking, which sucks.

I don't think there's really anything you can visually scope out to see if it's the motherboard. It could just be that it's crapping out on you. As previously mentioned, the polling rate was the only other thing to look out for, but if you've changed it all around with the same result, then it indeed might be the motherboard. How long have you had the motherboard for?

Since August maybe?
I'm worried it could be something as simple as dust...

Take either mouse and try to make large, quick movements on another computer to try to replicate the problem. I had this same thing happen to my G500, and it ended up being a cord problem. Just try to make all kinds of movements that you possibly could with the mouse.

It's important that you try to give the mouse as much time as you can to let it recreate the problem. I ended up ruling out the possibility of my problem being with the mouse cord after using it on another computer and it working fine, but on another attempt it stopped working almost right away. Mouse cords are weird like that.

If the mouse works fine on other computers with excessive testing, it's definitely your USB or MoBo.

I had that problem once, the only probable solution you might have is to just get a new one..

I had this problem with my G500 after about a year of use. But it's definitely my mouse, the wire was all cut up and the usb port was simply not responding. But then again... logitech.

#rip g500
#shitty acer optical mouse

Yeah, I haven't heard of any motherboards malfunctioning that quickly, not even close.

I would really try to make absolutely certain it's not both mice dying at once. Try your mice on other computers and try another mouse on your computer with the issues.

Might be worth a shot but I recall freestate's mouse was fucked up because his tf2 was set to high priority.

Put "-above normal" (I think this was it) in your launch options and see if that fixes anything.

I'd link a source but free would probably end my career.

Welp. Turns out it was a mouse problem, according to the "connect to another computer" thing.

So I said, fu Jakeypoo, I'm never missing out a fun scrim again.
I'm finna fix this my (DAAAAAMN) self.

---In this intermission to the epic of drak, I'd like to apologize for using your time while it still was a directly-mouse issue. My other mouse was the source of confusion, as it had been used with success before. Shame. I also didn't understand why it would stop working in games moreso than out. Mah bad, again, and thanks, again---

Anyways, I opened it up, and jankification ensued. However, it works just fine, albeit I did manage to break one of the screws, so I now have red light seeping out one side. I'll also probably have to reglue the pads, since the screws were under them.
I guess I'm just very proud of this fix. I've never done something like this before, and I finally got to apply some rudimentary Physics 2 knowledge I thought I'd never need. Also known as, insulators. Also known as, duct tape wrapped around enough to become janky electrical tape.

Once again, thank you all.