Re: [gentoo-user] Re: Package compile failures with "internal compiler error: Segmentation fault".

[Michael <confabulate@kintzios.com>]

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On Wednesday 4 September 2024 23:07:17 BST Grant Edwards wrote:
> On 2024-09-04, Dale <rdalek1967@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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