> 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 -- linuxbios mailing list [email protected] http://www.linuxbios.org/mailman/listinfo/linuxbios
