It's standard DDR3 ECC, but check the rank and speed.

Yes — the T320 uses standard DDR3 ECC, but it’s picky about rank (single vs dual) and speed. You can’t just throw in any old stick.

The server accepts both UDIMMs (unbuffered, usually up to 16GB per slot) and RDIMMs (registered, up to 32GB per slot). But mixing UDIMM and RDIMM won’t work. Same rank per channel matters too — Dell’s manual says you can’t mix single- and dual-rank DIMMs in the same channel. And speed should be matched: 1333MHz or 1600MHz, but the system will clock all RAM down to the slowest stick.

Installation is easy — pop the side cover, snap into the slots. No tools. The annoying part is actually finding the right spec. Most “server RAM” listings on eBay or Amazon are generic. You want sticks that explicitly state “for Dell PowerEdge T320” or list the Dell part number, because the system does a memory training check at boot and will throw a beep code if the timing doesn’t match exactly.

Save yourself a headache: buy a matched kit from a reputable reseller, or check the Dell compatibility matrix. It’s not hard — just less forgiving than building a desktop.