[LinuxBIOS] RAM limit of TM5800 with VT8231 southbridge
miernik at ffii.org
Fri Nov 18 08:58:38 CET 2005
Bari Ari <bari at onelabs.com> wrote:
> The TM5800 can directly address 4GB of memory space since it is a 32 bit
> cpu. However the maximum memory size in the DIMM sockets the TM5800 can
> address is 1025MB
1024 MB you mean?
If only 1 GB can go in DIMM sockets, where can the remaining 3 GB go?
> arranged as two banks of 512MB or four banks of 256MB.
Is "bank" = "1 DIMM module" or?
> Design of the memory controller silicon
Is the memory controller silicon inside the TM5800, or is it some
> Look for modules that that minimize the number of loads.
What are "loads"?
> The SDRAM interface cannot drive more than sixteen unbuffered devices.
> SDR SDRAM configurations requiring more than sixteen loads must use
> buffered SDR memory.
But I am talking about DDR here, not SDR.
TM5800 does not support buffered memory:
Page 2, section 1.2.1
Miernik _________________________ xmpp:miernik at amessage.info
___________________/_______________________/ mailto:miernik at ffii.org
Protect Europe from a legal disaster. Petition against software patents
More information about the coreboot