Check if you need more RAM or an upgrade.
Check if you need more RAM or an upgrade.
For quicker performance, opting for a lower price would be better. It shouldn’t be this expensive with server systems either—their memory controllers are built to handle much more stress than typical consumer models.
The specifications list various options: 16 slots total, 8 per CPU, supporting DDR4 and ECC variants. Memory types include 4GB, 8GB, and 16GB DDR4 LR-DIMM with ECC, plus 32GB ECC options later. It supports NUMA architecture and offers speeds up to 2133MT/s. Mixing RDIMM with LRDIMM isn't allowed. Prices range from $8 to $80 depending on size and condition. For 16GB ECC RAM, several listings are available, with recommendations to buy multiple sticks and assign them appropriately across CPUs.
It seems your X99 uses a Xeon 2996 processor and encounters problems when trying to run with eight RAM sticks at 2400MT/s.
I understand, I had 128GB of RAM but needed 256 for the E-peen. It wasn’t a big deal, just for that purpose.
Many programs rely mainly on the first CPU, with fewer threads utilizing the second one. You currently have 128 GB on the first and 64 GB on the second. He's handling it well at 64 GB, so increasing to 196 GB would be ideal, and unlikely he'd face issues where only half the RAM is available on the second CPU. You can experiment and combine configurations as needed... for example, using 4 16 GB sticks on the first two channels of each CPU, then adding 8 GB on the remaining channels.