dimm is better, dimm is faster, most motherboards is designed to work with this type of memory..
168
like pci slot dimms slot..
DRAM
Yes, you can install the four DIMMs of different sizes on the motherboard. However, dual channeling will only be enabled for the pairs of DIMMs that match in size and specifications. The unmatched DIMMs will operate in single-channel mode, which may reduce overall memory performance compared to a fully matched dual-channel configuration. To maximize dual-channel benefits, it's best to use pairs of identical DIMMs.
DIMMs
Memory configurations will not work when populating a motherboard with DIMMs if the installed memory modules are incompatible in terms of speed, size, or type (e.g., mixing DDR3 with DDR4). Additionally, using different ranks or single-sided vs. double-sided DIMMs can lead to issues. It's also crucial to follow the motherboard's specifications regarding the maximum supported memory capacity and the recommended slot population order. Failure to adhere to these guidelines may result in system instability or failure to boot.
Yes. The Intel CC820 motherboard has two DIMM slots that can use two single-sided DIMMs , two double-sided DIMMs or one single-sided DIMM and one double sided DIMM. In that case, the single-sided DIMM must be in the first slot.
DIMMs (Dual In-line Memory Modules) can hold varying amounts of memory, typically ranging from 4 GB to 64 GB per module for consumer-grade RAM. High-performance or server-grade DIMMs can offer even larger capacities, with some modules reaching up to 256 GB or more. The total memory capacity in a system depends on the number of DIMMs installed and the maximum supported by the motherboard.
If you install DIMMS in all four slots that don't match, the memory will still work, just not at top performance.
the system board receives important information from dimms regarding the ram configuration during?
The ATX form factor is an ancient one. Modules can range all the way from 72-pin DIMMS to DDR3.
The only difference would be if your motherboard has dual channel capability. Check your manual to see. If it does then 2 x 256MB would be the faster option.