On Sunday 19 February 2006 19:53, Rikard Johnels wrote:
Even memtest sometimes fail detecting Tried using the 2's independent? Install om A and swap it for B and reinstall? (Didn't really understand if you had...) Are they the same types? Or is it mixed manufacturers/models? Some MB's are very particular on the flavor of the sticks
Hi Rikard, Mike and James... It is extremely unlikely that the memory is fine and that two completely different motherboards are exhibiting identical symptoms -- even if they're using the same chipset. One possible scenario: Mixing and matching sticks from different manufacturers on high end machines like this is asking for trouble. Even when the specs "match" one brand can test and run OK, then the other brand can test and run OK, but both installed can generate a disparate "blend" of noise in the memory bus that confuses the surrounding logic. Each stick has a distinctive noise 'signature' and you want those signatures match... to be synchronized with each other... as closely as possible.
If both install perfectly, it MIGHT be the motherboard itself.
Another possible scenario: If POST is only recognizing and initializing 2.8 GB when all 4 GB is installed, what are the odds that the results reported by memtest are just wrong? regards, Carl