64x4 RAM chips more error prone?

[kylef]

I've noticed that the 64x4 SDRAM is REALLY inexpensive right now.

What are the disadvantages to this type of RAM, OTHER than incompatibility with some motherboards? Is the higher density chip more prone to memory errors? Why are generic manufacturers the only ones manufacturing these chips?

Thanks.

 

[kylef]

Bump... anyone have experience with these new chips? Any trouble?

 

[XMan]

I'm using a couple of 32x4 256MB DIMMs in my system.

They seem to work fine.

The 64x4 DIMMs are 512MB, right?

 

[Kingofcomputer]

64x4 does not have higher density than 32x8, both are 256Mbit.
it's just different architecture, 4 bit wide vs standard 8 bit wide.
both are 4-bank interleaving, 64x4 is 16Mx4bitx4bank vs 32x8 is 8Mx8bitx4bank.
if you check micron and infineon datasheet, you'll see that they also make such type chip.