Inserting two memory modules of the same frequency can cause an infinite reboot due to one of the following reasons:
1) The memory module is incompatible, which may be caused by incompatible memory modules of different brands, models or capacities.
2) The DIMM slot is faulty, possibly because the slot is damaged or dirty.
3) The power supply is insufficient, and the two memory modules working at the same time may exceed the load capacity of the power supply.
4) The BIOS Settings are incorrect, which may be caused by incorrect BIOS Settings. Solutions include replacing the compatible memory module, cleaning the slot, checking the power supply, and adjusting BIOS Settings.
If two DIMMs of the same frequency are inserted, they may restart indefinitely because of the compatibility problem between DIMMs or the fault of memory slots. Memory modules with the same frequency are not necessarily compatible, and mismatches may occur. In addition, poor contact or malfunctioning memory slots can also cause unlimited reboots. To solve the problem, replace the memory module or memory slot, or adjust the BIOS Settings.
There is a memory is not compatible, but the same frequency, the earlier motherboard does not support the later memory,