CUSL2 only detects 384Mb, not 512Mb

[HeaverVT]

I know the CUSL2 only supports 512Mb ram, but are the last two DRAM slots single sided only or something? One of my 256Mb PC133 DIMMS is only detected as 128, not 256. These same two DIMMs were detected as 512Mb in a P3V4X. Any ideas?

 

[AndyHui]

The CUSL2 supports only 2 double sided DIMMs...Is one of the DIMMs ECC? If it is ECC SDRAM, the CUSL2 only detects half of what it should be.