You're facing issues with your Samsung RAM. Let me know if you'd like advice on troubleshooting or fixing it.
You're facing issues with your Samsung RAM. Let me know if you'd like advice on troubleshooting or fixing it.
You have a 64GB Samsung RAM module that isn’t functioning properly. It works in your computer’s slots when using 16GB RAM, but not with the 64GB version. You cleaned the connections and tried inserting it only once, yet it still didn’t boot. You considered reflowing it but lack an oven, and swapping it to another motherboard but found bent contacts.
It's not functioning due to the RAM being Registered ECC DDR4. Desktop systems (motherboards, CPUs) don't support Registered memory. AMD uses ECC but not Registered. Note: The central chip in the modules indicates Registered status. Extra two chips on one side confirm it; removing that chip wouldn't affect functionality. 32 GB of RAM uses 2 GB or 16 Gbit per chip.
Unless your system uses a server board equipped with a Xeon/Epyc chipset, it won’t function. Pre-registered, high-capacity DIMMs need specialized hardware support that isn’t available on typical consumer boards. This explains their affordability—they’re only viable on the most advanced motherboards.
X99 was built exclusively for HEDT and workstation applications, leveraging Intel’s server CPU and LGA interface. It will differ significantly from typical consumer systems, resembling a configuration more akin to the EPYC lineup.
You can use unbuffered ECC on any system, but the performance depends on the motherboard support. The ECC feature is usually enabled by the card, though some motherboards limit it for higher speeds. Registered ECC requires a dedicated server board to function properly. Consumer components often don’t work with this setup. Your RAM might not perform well unless you upgrade to regular or ECC-uncuffed units. Check your CPU model, motherboard type, and desired memory size. Affordable options like the OEM green PCB DDR4 2133-2666 sticks are available now. Certain models (e.g., M378A1G43EB1, M378A2K43DB2, HMA82G6DJR8N) support strong overclocking. Dual or quad channels are better for speeds under 4000 MHz, but single-channel is fine for lower frequencies. You don’t need complex tuning—just use someone else’s OC settings or a standard XMP profile to get results.
He mentioned trying it on an ECC motherboard but it didn’t work. He purchased it at the same cost when it was brand new, but it was second-hand.
He likely tested it on a motherboard with ECC support but without registered RAM. These components are both registered and use ECC. As mentioned, typical desktop builds only use unregistered, unbuffered RAM modules, while a few newer systems support ECC (mainly AM4, AM5, and some recent Intel models), some allow ECC-compatible modules without using it, and very few will start with modules that include ECC.