For several months now, I've been having issues with my computer inexplicably hard freezing. It'll function normally for a week or two, then for no clearly discernible reason (Typically when performing low-intensity processes like web browsing - often when trying to click or type something), the system will simply freeze. Rather, first the program I am using will stop responding, then the mouse cursor will freeze and the entire system will lock up. The computer is a little over a year old now, and for the first year it functioned perfectly with no issues. This issue came completely out of the blue. I've tried just about everything under the sun to resolve this issue, but nobody seems to have a solution for me. Here's what I've tried:
- Checking my system temperatures. The CPU idles at 31 degrees and never exceeds 80 degrees even when running synthetic benchmarks. The GPU and motherboard are basically the same.
- Running MemTest86 to test my system RAM. I've run around eight tests so far, four involving each stick being run independently in the same slot they've always resided in. The other four involved all sticks being involved concurrently. No errors.
- Running Prime95's various torture tests. No errors on any of the three tests after an hour running.
- Running FurMark. No anomalies or errors after an hour running.
- Disabling XMP. Still crashes.
- Checking my power plan settings. It is currently running in high performance mode with Link State Power Management and Hard Disk turn off disabled. My GPU has been set to always favor maximum performance.
- Scanning for malware, then removing my AV software altogether. Avast, MBAM, and Defender all report the system as clean.
- Reinstalling Windows 10 from scratch.
- Updating my drivers. Everything as far as I can see has been fully updated.
- Updating my motherboard's BIOS - It's running the latest version.
- Testing my core voltages. I haven't broken out the multimeter to check the rails manually, but according to HWInfo, they all appear okay. Moreover, they experience no appreciable change in voltage when under load.
These freezes do not leave DMP files in the minidump folder, but will occasionally leave dumps in the LiveKernelReports folder - as it did today with the latest freeze. The dump files are quite large, but here's the information that WinDbg gives me:
Suffice it to say, all of the error logs seem to point to "pdc.sys" as having caused the freeze. However, I can't find any solid documentation on what this is exactly.
Full System Specs:
CPU: Intel i7-6800K @3.4GHz
COOLING: Corsair H100i v2
MOTHERBOARD: MSI X99A SLI Plus
RAM: Corsair 32GB DDR4 @2666MHz
SSD (OS MOUNTED): Samsung 960 EVO
HDD: Seagate Barracuda Pro 4TB HDD
PSU: Corsair RM750X
Other tidbits: I don't overclock my CPU or GPU. I never have. My XMP profile brings my RAM frequency to 2666MHz as advertised. This is confirmed in both my BIOS and through CPU-Z.
Edited by dalphelus, 10 March 2018 - 02:43 AM.