I've seen lots of threads with a similar issue and haven't yet found the source of the issue. This isn't a new issue for me, it's been occuring for at least a few months. I've currently only had the issue on single player community test chamber maps (it's the only thing I play), and it doesn't seem to be the fault of the specific maps, as it occurs on every one I've tried.
The crash occurs within the first couple minutes after getting in game. It just crashes to desktop with no warning, freeze, or any indication that something went wrong.
Verified 100% cache multiple times. 32gb of System RAM (memchecked to make sure it's not faulty), 20gb free on last crash. 3gb VRAM, 2.5gb free on last crash. No issues with other source games (or games running a different engine).
Is there an arg I can add to produce a log that might help me pinpoint the issue? I've checked the folder and it doesn't appear to be producing crashdumps or a log file of any kind.
Here's my full system specs, in case it's an issue with a piece of hardware and other people are experiencing the same thing:
Mobo: Gigabyte Z77x-UD3H CPU: Intel Core i7-3770K GPU: EVGA GTX 660 Ti FTW+ RAM: Crucial Ballistix 4x8GB (32GB) SSD: 512gb Samsung 840 Pro (what I'm running the game on) Sound Card: Asus Xonar Essence STX (Driver v126.96.36.1991) OS: Win 7 Pro 64-bit