10-31-2010 03:13 AM
I put 8GB of RAM into my T400 (2 x 4GB PC3-8500 G-Skill modules), and notice that in the system properties in Windows 7 Pro 64-bit the memory is listed as installed memory 8.00GB (7.90 GB usable). This seems kinda strange since I also have a T61 with 8GB RAM and with the same OS is listed with a flat 8.00GB (oresumeably all 8GB usable)
Both machines use integrated graphics.
Just wondering if anyone knows what the issue is (if any) and if my RAM could be faulty,
10-31-2010 04:15 AM
10-31-2010 01:50 PM
hmmmm, thanks for the reply. I'm also finding that the Windows Memory Diagnostic program never gets to completion on my T400, it gets to a particular percentage, say 54% in the latest case and then hangs necessitating a forced power off. Very strange. Don't have this problem with the T61.
10-31-2010 10:47 PM - edited 10-31-2010 10:48 PM
Memtest+ works fine, keeps going and going with no errors. I wonder what is causing the Microsoft program to choke? (note I ran it again and it ran all the way through - seems intermittent)
11-01-2010 02:31 AM
11-01-2010 03:04 AM - edited 11-01-2010 03:05 AM
Hi, thanks for the reply, I am currently running the alternative Windows Diagnostic utility from here: http://oca.microsoft.com/en/windiag.asp and it seems to be running OK from the boot disk.
Yes I also have the Lenovo ThinkVantage Toolbox and that checks out OK.
I guess i'll have to assume that the Windows memory diagnostic built into the OS has some issues with my hardware configuration. Maybe I will post in the MS forums and delve further into the mystery.
11-03-2010 03:04 AM
Update: By disabling every setting in the BIOS, the Windows Memory Diagnostic now runs without hanging . Got the idea from reading the MemTest86+ forums.