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

[Michael <confabulate@kintzios.com>]

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On Saturday 7 September 2024 23:12:41 BST Wols Lists wrote:
> On 04/09/2024 01:39, Dale wrote:
> > I've seen that before too.  I'm hoping not.  I may shutdown my rig,
> > remove and reinstall the memory and then test it for a bit.  May be a
> > bad connection.  It has worked well for the past couple months tho.
> > Still, it is possible to either be a bad connection or just going bad.
> 
> I've had *MOST* of my self-built systems force me to remove and replace
> the ram several times before the system was happy.
> 
> And when a shop "fixed" my computer for me (replacing a mobo that wasn't
> broken - I told them I thought it needed a bios upgrade and I was
> right!) they also messed up the ram. Memory is supposed to go in in
> matched pairs. So what do they do? One stick in each pair of slots - the
> thing ran like a sloth on tranquillisers! 

The placement of DIMMs depends on the MoBo, its manual would show in which 
slot should DIMM modules be added and the (maximum) size of each stick the 
MoBo can cope with.  Normally OEMs provide a list of tested memory brands and 
models for their MoBos (QVL) and it is recommended to buy something on the 
list, rather than improvise.

On ASUS MoBos with 4 slots and 2 DIMMs it is recommended you use slot B2 for 
one module, slots B2 and A2 for a pair of matched modules and the the 
remaining two slots A1 & B1 for a second pair of matched modules.  So, what 
the shop did would be reasonable, unless the MoBo OEM asked for a different 
configuration.


> As soon as I realised what
> they'd done and put both sticks in the same pair, it was MUCH faster.
> 
> Cheers,
> Wol

Sometimes, you have to place only one module of a matched pair in and boot the 
system, let the firmware probe and test the DIMM, before you shut it down to 
add more memory to it.  Whenever RAM does not behave as it should when 
installing it, it is a prompt for me to go back to the OEM manual for guidance 
on the peculiarities of their product.

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