BSOD when doing nothing (idle)

Hello,

i built a new system (Asus P8H77-I, Intel i5-3550, 8 GB Crucial and 16GB Kingston RAM) and noticed random bluescreens.

I can play games many hours without problems.
If I leave the PC Idling for about 30 minutes, BSODs come.

I changed the ram (crucial to kingston) and bought a new ssd, but this doesnt helped.

Welcome aboard.

Both your crash dumps shows Stop 0xDA with a probable cause ntkrnlmp.exe. That means your dumps do not contain adequate information of the crashes.

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.