Dell XPS M1530 (M1530, Late 2007) - Manual (Page 21)

Memory 21
NOTICE: To prevent damage to the memory module connector, do not use tools to
spread the memory module securing clips.
1 M2.5 x 5-mm screw 2 module cover
3 captive screw (4)
1 DIMM A memory module 2 DIMM B memory module
1 3 2
1
2