On 02/11/2014 08:46 AM, Gary Dale wrote:
This is all very interesting, but I'm still curious as to the results of running memtest when only one module is installed at a time. Sure, that's 3 runs which will take time... In my years, I have seen situations similar to this. You have a pair installed which look to be working. Odd issues start popping up, so you reasonably think more RAM will help. You add a third which BIOS sees all of, yet the OS doesn't. Turns out memtest shows errors on one of the modules. Replace that and all is well. And yes, your new module could be faulty.On 11/02/14 03:18 AM, Joel Rees wrote:The compatibility table doesn't show any 8G sticks but the manual and advertising all state the board can handle 32G. This would require the ability to handle sticks larger than 4G. It is possible that it's 8G that is causing the problem but the manual doesn't mention any limitation on memory sizes.On Tue, Feb 11, 2014 at 3:35 PM, Joel Rees <joel.rees@gmail.com> wrote:On Tue, Feb 11, 2014 at 1:58 PM, Gary Dale <garydale@torfree.net> wrote:Not quite what I was trying to suggest. I was oversimplifying significantly.[...] Your suggestion that it is the 8G + 1x4G which is being recognizedAnd, now that I've been out for a walk, to see my wife's mom, it occurs to me that the more likely scenario is the one that I think others have implicitly assumed. That is, that there is enough logic for the controller to *recognize* the 8G stick, but not enough to fully *decode* it. Particularly, if your compatibility table doesn't mention 8G, there would be no surprise if the motherboard were able to see that it's an 8G stick and decode just half of it. And if that's the case, getting a mate to the 8 you have would leave you able to read the lower half (or maybe the upper half) of both 8G sticks, so you'd be able to access 16G, but not 24. And I can think of a particular decoding arrangement where an 8G stick all by itself could be fully decoded, but when you add more in the second pair of slots there wouldn't be enough decode circuitry to fully map both pairs of slots. Thus the need to use a full set of diagnostics tests if you really want to see what's happening.Nor does the compatibility table show any 16G sticks. I suspect that the compatibility table values are just the sticks they tested and they didn't anticipate people using larger sticks. Anyway, apart from the size, the 8G stick is the same as smaller sticks that are listed.Gigabyte web support still isn't working, so I can't get any help there yet.
-- --- Dave Woyciesjes --- ICQ# 905818 --- CompTIA A+ Certified IT Tech - http://certification.comptia.org/ --- HDI Certified Support Center Analyst - http://www.ThinkHDI.com/ Registered Linux user number 464583 "Computers have lots of memory but no imagination." "The problem with troubleshooting is that trouble shoots back." - from some guy on the internet.