Welcome aboard, Karmakar. From Bengal I guess?
You are getting a Stop 0x109 error, which may be caused either a device driver, or by a faulty RAM
. But, your dumps does not give a trace of any driver faulting there. Before blaming the RAM, let us be sure that no device driver is causing it actually.
In such a situation, it is better to enable Driver Verifier to monitor the drivers. Driver Verifier - Enable and Disable
Run Driver Verifier for 24 hours or the occurrence of the next crash, whichever is earlier.
Let us know the results, with the subsequent crash dumps, if any.