On Wednesday 4 September 2024 23:07:17 BST Grant Edwards wrote: > On 2024-09-04, Dale <rdalek1...@gmail.com> wrote: > > At one point, I looked for a set of four sticks of the memory. I > > couldn't find any. They only come in sets of two. I read somewhere > > that the mobo expects each pair to be matched. > > Yep, that's definitely how it was supposed to work. I fully expected > my two (identically spec'ed) sets of two work. All the documentation I > could find said it should. It just didn't. :/ > > -- > Grant
Often you have to dial down latency and/or increase voltage when you add more RAM modules. It is a disappointment when faster memory has to be slowed down because those extra two sticks you bought on ebay at a good price, are of a slightly lower spec. Some MoBos are more tolerant than others. I have had systems which failed to work when the additional RAM modules were not part of a matching kit. I've had others which would work no matter what you threw at them. High performance MoBos which have highly strung specs, tend to require lowering frequency/increasing latency when you add more RAM. Regarding Dale's question, which has already been answered - yes, anything the bad memory has touched is suspect of corruption. Without ECC RAM a dodgy module can cause a lot of damage before it is discovered. This is why I *always* run memtest86+ overnight whenever I get a new system, or add new RAM. I've only had one fail over the years, but I'd better be safe than sorry. ;-)
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