There is a hard limit of 50 MBs for Hardware inventory set within the data loader for MIF file. If you enabled AI classes to collect more data by SCCM, it is not unusual for these computers to hit this hard-coded limit. This causes an endless loop of resyncs being performed by SCCM clients. the resync then consumes network bandwidth and processing time on the client/MP/etc. It is not until it hit the Data loader that these MIF files are rejected and ultimately a resync occurs to start the whole process over. The hard code limes should be increased to 200MB (for now), this will stop this issue and allow the computers to only send delata after the full inventory.