You can read the SPD ROM data on other Machine. And then check the value according the DDR spd sepc.
YH
-----Original Message----- From: linuxbios-bounces@linuxbios.org [mailto:linuxbios-bounces@linuxbios.org] On Behalf Of Miernik Sent: Sunday, March 05, 2006 11:52 PM To: linuxbios@openbios.org Subject: [LinuxBIOS] RAM organization - can 8 16Mbx16 chips give a single-rank 32Mbx64 DIMM?
I have a DDR266 SO-DIMM module with 8 chips on it. I only know the specs on the chips, they are 16Mb x 16 organization. I don't know the specs of the whole module, there isn't even a model number.
I want to know the organization of the whole module. Is it a dual-rank ("double-sided") module with 16Mb x 64 in each rank? Or is it a single-rank ("single-sided") module with 32Mb x 64 organization?
Is the latter at all possible? If yes, how to tell the difference by looking at the module?
The reason I ask, is that http://transmeta.com/crusoe_docs/TM5800v1.0_DataBook_030206.pdf on page 19 states that the memory controller supports only 1 rank with DDR. That limitation doesn't apply to SDR controller or to DDR controller on version 2.1 chips - page 21 on http://transmeta.com/crusoe_docs/TM5800v2.1_databook_030922.pdf
I have a 5800A073310 chip, and I would like to know if that DDR module should work with it or not. And also will a 1 GB DDR module work with it. With v1.0 documentation it appears that not, but with v2.1 on page 23 it lists a 1024 MB DDR configuration with two ranks, is it possible that v1.0 will somehow support it, only the docs didn't list it?
The module in question is here: http://217.17.47.111/items/SMART_TM2V16M1618U-4/SMART_TM2V16M1618U-4.fro nt.jpeg http://217.17.47.111/items/SMART_TM2V16M1618U-4/SMART_TM2V16M1618U-4.bac k.jpeg