Re: [LinuxBIOS] DIMM Page Size

[Segher Boessenkool]

> Anyone know what the mathmatical calculation is to determine a Dimms
> "Page Size"?? I found this but it does not seem to work:
>
> Page size = (2^col)*bus_width
> where,
> col = number of column address lines (SPD byte 4: Number of Column  
> Addresses)
> bus_width = number of data(DQ) lines (???SPD byte 13: SDRAM Device  
> Width???)

"device width" is the number of data lines per DRAM chip on
your DIMM.  This isn't the same as the number of data lines
on the DIMM itself; that is 64 usually (not counting the ECC
bits).  This info is in the SPD as well.

Segher