[SOLVED] Sudden BSOD issue

When I attach a debugger to a crashing program, I'm always seeing either invalid memory/access denied errors or illegal instruction errors. Note the ?? ?? at the exception memory address

2019-07-29 18_13_47-Taskmgr (Debugging) - Microsoft Visual Studio (Administrator).png
 
M.2 SSDs can either use the SATA protocol or the newer, higher performance NVME standard. NVME communicates over PCI Express and therefore has a much higher maximum transfer rate (~3GBs for NVME vs 550MBps for SATA).


I've tried a traditional 2.5" SATA SSD (cloned from my ADATA SSD), my main M.2 NVME ADATA SSD and a clean install of Windows on a SATA M.2 SSD
 
Stephen said:

Exception error code 0xc000001d = illegal instruction - e.g., division by zero

This could be a CPU error.

You have a core i7, so run this Intel CPU test - CPU STRESS testing: Mersenne.org Prime95 and Intel Processor Diagnostic Tool (IPDT)

The test does work as we had a client that was getting 0x101 bugcheck BSODs and the test flagged the CPU as bad.

CLOCK_WATCHDOG_TIMEOUT bug check has a value of 0x00000101. This indicates that an expected clock interrupt on a secondary processor, in a multi-processor system, was not received within the allocated interval.

0x101 = CPU hang

Please note - this is just a guess on my part as you HAVE NOT had any 0x101 bugcheck BSODs.

Regards. . .

John

@Tekno Venus
 
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I think the motherboard is the likely source of crashes at this stage. I would expect other failure behavior if it were the PSU with the stress testing being done without crashes, and the CPU test came back clean. Suspects in order would be:
  1. Motherboard
  2. CPU
  3. PSU
  4. RAM (it would be pretty crazy if three sticks were bad)
  5. SSD (very unlikely given the tests done)
 
Have opened a ticket with ASUS so should hopefully hear back soon. Fortunately I'm on holiday for the next 2 weeks so can afford to be without a computer for a while!
 
Thank you, Stephen, for trying everything that everyone suggested.

It made our lives much easier.

You're the ideal OP! :-)

John

p.s. I do hope that Asus comes through quickly.
 
Sorry for the lack of updates on this!

After some back and forth with ASUS and the company I bought my motherboard from, it eventually turned out that ASUS would not repair the motherboard. I had a hunt around for some used Z170 chipset motherboards, but since I need an ITX sized board there was very little around for a reasonable price.

As a result I decided to bite the bullet and buy a new motherboard. Unfortunately that means I had to purchase a new CPU, but I've now rebuilt the system with an AMD Ryzen 7 3700X CPU and ASUS B450-I motherboard. So far so good, everything has been nice and stable. I am slightly concerned at the temperatures as this CPU does run much hotter than my old one so will eventually need to switch everything into a new case with more airflow and better cooling, but for now I'm just glad to have a working computer again.

Thanks for all your help with this issue
 
I, for one, have been following this thread in the background and am glad to hear that!
 
Yes... Good luck to you, Stephen, with the new hardware parts (and the old ones that are still with you too!) :-)

John
 

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