Hey all, if I have a stick of RAM that I pealed the sticker off a while back, and now I can't remember the rating, could you guys maybe help me figure it out?

I know it's a 256MB DDR stick.
Here is about what the chips look like:

Nanya 0131
NT5DS16M8AT-7K
20100BPT SINGAPORE

The upper right and lower left numbers are not consistent from chip to chip, but the middle number is.

No markings of any kind on the PCB.

Thanks for any help guys!