Will mixing a 1R x 4 pair with a 2R x 4 pair lead to any issues?
Will mixing a 1R x 4 pair with a 2R x 4 pair lead to any issues?
Very likely yes.
RAM selection and installation should follow the motherboard's User Guide/Manual, checking the manufacturer's website for confirmation.
Installation must use matched sets, typically beginning with DIMM_A2.
BIOS settings often require specific configurations.
There are three potential issues: 1) functionality appears, 2) persistent problems, and 3) complete failure.
Combining RAM types is not advised.
Occasionally, user guides cause confusion. For instance, the spec mentions the motherboard supports up to 512G ECC RDIMM with 8 slots, yet the interface says only 1Rx8 64G RAM is available. I couldn't locate a DDR4 1Rx8 64G stick in the market. It seems such a configuration probably never existed, likely due to the 8G limit.
If you have them, give them a try.
The ram will function at a reduced standard, if any.
You might need to boost the ram voltage in the bios and reduce the speed to make it work.
After that, perform several full passes with memtest and ensure no errors appear.
In summary, mismatched ram is likely to cause issues.
It’s wiser to obtain a compatible, supported kit.
Plug them in as suggested. A table of memory population rules should be included in the motherboard manual. Generally, you aim to form memory banks by pairing different types together, with another set of the same type in a separate channel. For example, in channel A use 1x4 and 1x8, and in channel B use 1x4 and 1x8. With a quad channel setup, you might try arranging them as 1x4, 1x8, 1x4, 1x8 to ensure the system utilizes the first 4GB of each stick.
I just attempted to check its functionality. The system can start and execute programs, but it's unclear what will occur when memory-heavy applications run simultaneously.
Run memtest86.
It doesn't rely on Windows.
If it completes the full test without any issues, you're probably fine.
For extra confidence, try a few more times.
Yea, it's more likely you'll encounter issues when mixing RAM, which is why they stocked kits and you shouldn't run a single rank or a duel rank either. It might not retrieve all duel rank information. The system could attempt to force everything into a single rank or run the duel rank through the duel channel, likely leading to a crash when fully loaded.