Check the RAM or motherboard first.
Check the RAM or motherboard first.
Check the specifications for each stick individually. The older stick is quite a bit older than the new one. For setup, follow your motherboard manual: place them in slot 1, which is farthest from the CPU on the left to right side, and slot 2, the second closest to the CPU on the same axis.
Confirm the setup for one stick in slot 1 or slot 2. If it doesn’t work, the CPU memory controller might be faulty or the motherboard could be damaged. If RAM functions correctly, the issue lies with the CPU memory controller and its compatibility with RAM in those slots.
Is it correct that they function together in a single channel on slots 3 and 4?
Check functionality with RAM in slots 1 and 2. This is the alternate memory path.
You're doing well. Your dual channel is set up, but only in the second slots for each stick channel at their maximum speeds. It looks like you're handling it properly. The dual data rate means you're seeing 1600MHz as the base speed and 3200 effective speed.
Find the correct spot for the new item in slot 3 and slot 4, as they are the only valid positions.