I'm putting together a new system with a Ryzen 5 7600, an MSI B850M-E EVO motherboard, and one 8GB Kingston value DDR5 stick. After assembling everything, the system won't POST and the CPU and DRAM warning LEDs stay lit. I waited for memory training, but nothing changed. I only noticed afterward that this exact RAM module isn't listed on the motherboard's memory QVL. My retailer has one officially listed compatible module available, along with some Sapphire motherboards that may support a wider range of memory. Which part would be the better thing to replace? I'm also planning to add a second matching stick soon.
3 Answers
Newer platforms still aren’t completely plug-and-play with every memory module. The Ryzen 5 7600 and B850 board use DDR5, but memory speed, module organization, BIOS support, and the board’s memory training can affect compatibility. A part not appearing on the QVL isn’t automatically incompatible, but using a tested kit removes one variable. I’d replace the RAM before replacing the motherboard.
The motherboard’s QVL isn’t a complete list of every memory module that works; manufacturers simply can’t test every kit. That said, swapping the RAM is probably the simplest first step, especially since you’re planning to add another stick anyway. Also double-check that the module is fully seated, the CPU cooler isn’t overtightened, all power connectors are plugged in, and the stick is installed in the recommended slot. One 8GB module will work for basic testing, but 16GB with two matched sticks is a much better target.
The CPU and DRAM LEDs don’t prove that both parts are defective. During startup, a memory problem or failed memory training can sometimes leave both indicators lit. Clear CMOS, try one module in the board’s recommended slot, and confirm the BIOS supports the processor. If those steps have already been done, testing with the retailer’s known-compatible DDR5 module is the most sensible next move.
I’ve checked the seating, cables, cooler pressure, and other basics several times. I’m leaning toward exchanging the RAM for the listed-compatible module and adding a matching second stick shortly.