On Tue, Aug 03, 2010 at 11:55:35PM -0600, Richard Esplin wrote: > Before calling Lenovo support, I decided to test each sodimm alone in the > system to rule out the memory. When I saw that each one could be seen, I put > them all back in and the system recognized the full 16 GB. I guess one or two > sodimms were not correctly seated (though I had visually inspected them > earlier). > > I hope that the problem is solved.
Check out 'dmidecode' as root. If your motherboard is communicating with
the kernel correctly, then it should be able to tell you how much RAM
your board is capable of, and how much RAM each slot can handle.
In the case of my Lenovo T61, it's capable of 8192 MB of RAM, with a
maximum memory size of 4096 MB per dimm.
Example output:
Handle 0x0007, DMI type 5, 20 bytes
Memory Controller Information
Error Detecting Method: None
Error Correcting Capabilities:
None
Supported Interleave: One-way Interleave
Current Interleave: One-way Interleave
Maximum Memory Module Size: 4096 MB
Maximum Total Memory Size: 8192 MB
Supported Speeds:
Other
Supported Memory Types:
DIMM
SDRAM
Memory Module Voltage: 2.9 V
Associated Memory Slots: 2
0x0008
0x0009
Enabled Error Correcting Capabilities:
Unknown
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