I only process the minidumps at 2007. Two minidumps were crashed at IRQL x'1c' (ie timer IRQL) and 1 minidump is crashed with interrupt code d. They are the symptom of hardware error (ie RAM, CPU, M/B or PSU). Usually RAM is
the culprit. Run memtest to stress test the ram.
Mini010707-01.dmp BugCheck 1000000A, {4, 1c, 1, 8050179e}
Probably caused by : ntkrpamp.exe ( nt!KiInsertTimerTable+4e )
Mini011407-01.dmp BugCheck 1000000A, {f005a13, 1c, 0, 805020df}
Probably caused by : ntkrpamp.exe ( nt!KiUnlinkThread+7 )
Mini010507-02.dmp BugCheck 1000007F, {d, 0, 0, 0}
Probably caused by : Unknown_Image ( ANALYSIS_INCONCLUSIVE )