Couple of days ago apps on my computer started shutting down by itself and the OS started reporting random missing files.
I thought that my SSD was failing, but it passed integrity, performance and error checks.
Soon after I started getting BSODs.
Next I tested the RAM modules. One by one in multiple motherboard slots.
All 6 RAM modules fail at the memtest86 test #4 on the third or the fourth pass (image attached at the bottom). I tested the memory on another machine and tests couldn't find any problems with the memory modules.
I took Crucial Ballistix Sport 1 x 8GB from another machine and it fails at the same test.
I don't know what to made of all this. I'm down to CPU and Motherboard. Could it be the CPU or corrupted BIOS?
What tests can I perform to make sure the CPU is not failing?
Memtest86
Test 3 [Moving inversions, ones&zeros, Sequential] - This test uses the moving inversions algorithm with patterns of all ones and zeros. Cache is enabled even though it interferes to some degree with the test algorithm. With cache enabled this test does not take long and should quickly find all "hard" errors and some more subtle errors. This test is only a quick check. This test is done sequentially with each available CPU.
Test 4 [Moving inversions, ones&zeros, Parallel] - Same as test 3 but the testing is done in parallel using all CPUs.
I'm running:
- P6T7 WS SuperComputer Motherboard
- Intel Xeon W3690 CPU (6 cores, 12 threads)
- 6 x 2GB Corsair Dominator DDR3 1600 (PC3 12800), Timing 9-9-9-24, Voltage 1.3V-1.5V (X.M.P.)
Answer
Easiest way would be to test the CPU in another known-good system. If it passes, then the issue is likely your motherboard.
Be sure to check other candidates if you haven't yet. Swap power supplies if you can, and also look for leaking or damaged capacitors on the motherboard. Poor power makes your computer unhappy.
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