My computer is borked.

[SP4NQD]

I'm getting random lockups on my machine where the mouse will stutter (and if any sound is playing, will do the constant clip repeat) for a moment and then totally freeze. No blue screen, so no crash dumps. Resetting the machine brings me back to Windows naturally complaining the machine wasn't shut down properly, I choose to continue, it fires back up, and everything is fine until it does it again.

Here are the specs:

Windows 7 64-Bit
AMD Phenom II X6 1090T
GIGABYTE GA-880GM-USB3
12GB G.Skill DDR3 RAM (3x4GB)
EVGA NVIDIA GeForce GTX 560Ti
Rosewill 650W PSU
Samsung SSD 840EVO 250GB
Seagate 500GB 7200RPM 500GB

(The hard drives are the newest parts in the machine as I was running a really old drive in that was slow and noisy, but this started before it was replaced.)

The machine has been solid (probably two years old now) up until a couple months ago. When it first started, it happened every couple weeks. Now it's getting to the point where it happens almost daily. Windows is totally clean, I ran Memtest with no issues, the system isn't overheating at all, I'm not losing board settings or any data really, and it has yet to happen in a game; only when I'm browsing or doing real simpleton stuff. I've taken sticks out, swapped them around, reseated stuff, tried a different mouse and keyboard just for the hell of it, and it makes no difference.

I've noticed on a couple of occasions where it'll start to do the mouse stutter, but manages to not lockup. When this occurs, my mouse cursor will be incorrect when they're moved over icons or buttons across the desktop (ie: instead of the arrow, its the resize cursor).

I'm kind of thinking that either the motherboard is starting to go (it's not a real fancy one) or my memory is going bad, despite Memtest not showing errors. It'd be nice to get a blue screen, but it just won't happen. Any thoughts or suggestions would be appreciated!

 

[DrDoU]

Have you tried who crashed?

 

[Quartz-1]

Memtest is not a particularly good test of faulty memory. Try running Prime 95.

Have you tried another mouse? Maybe there's an electrical short inside your current one?

 

[SP4NQD]

Have you tried who crashed?

There's no dump data for programs such as these to analyze; the machine doesn't blue screen. It's kind of ironic, too, because I wish it would!

Memtest is not a particularly good test of faulty memory. Try running Prime 95.

Good idea. I'll give that a shot.

Have you tried another mouse? Maybe there's an electrical short inside your current one?

I have. It's not the mouse, unfortunately (that'd be a nice cheap fix).

 

[Darksieg]

Do you have any spare GPU and PSU? have you also checked those ? or try using the onboard video just to check?

 

[Dreamerbydesign]

I would swap that PSU first before anything. Sounds like a power problem for sure.