3 Things to Know About ECC Memory and the Celeron G5905

The Celeron G5905 does not support ECC memory Intel only supports ECC on Xeon and some i3 (non-F) models. The G5905 is a consumer chip with no ECC support, regardless of what the chipset says.

ECC sticks will boot but run in non-ECC mode The chipset might technically allow ECC signaling, but the CPU’s memory controller ignores it. You get no error correction.

For a home server, use a different CPU or skip ECC If you need ECC, get a used Xeon E-2224 or an AMD Ryzen PRO. For a simple Celeron box, just use regular RAM and save the ECC money for a bigger SSD.