[ltp] T40: installation report

[Joel Ebel]

My pre-installed module was a samsung, and my extra module was an 
infineon.  Both have the same FRU written on it, 10k0033.  The infineon 
may be the same as yours.  One side does say CL2, the other says CL 2.5. 
    I ran throguh one pass of memtests 7 standard test without any 
errors.  I did have some stability problems in linux before, but I think 
it was related to having the agpgart module installed with 
try_unsupported=1.  Do you have any other 512 modules to try to see if 
the same errors happen with any 2 modules in that laptop?

Good luck,
Joel Ebel

Fabrice Bellet wrote:
> On Fri, Jun 13, 2003 at 01:35:28PM -0400, Joel Ebel wrote:
> 
>>2 things... First, Fabrice, how did you patch memtest?  I'm also having 
>>strange problems and I'd like to run memtest on it.  Especially trying 
>>it on individual modules now.  Do you have a link, or could you send me 
>>a patch?  Thanks.
> 
> 
> Okay, some more tests.
> Each memory module seems to work fine separately, but they 
> fail when put together.
> 
> The infineon 512MB with CL=2 is the buildin module, and the
> supplementary module (10K0032) contains chips from Micron, with 
> CL=2.5.
> 
> 1. In the manufacturer configuration, I noticed that all memory errors
> were located at addresses above 512MB. After I swapped the modules, the 
> failing addresses were now below 512MB...
> 
> 2. The error-bits pattern (the difference between the good values
> and the bad values) are very similar for each error : in most cases, this
> is 000000ff or 0000ff00 or 00ff0000 or ff000000.
> 
> Can anyone with a similar memory configuration confirm this ?
> 
> Best wishes,