What Is SODIMM ?

Unless you start doing some double stacking of drives, the realistic limit for an ATX board is five slots, and less for mATX and Mini-ITX

I have a Compaq CQ58 with 4Gb RAM in a single SODIMM I want to increase this to 8Gb

what is isa slot sodimm ram for it aren't too hard to find, but I was just wondering only one slot is working ran cpu -z the slot is there the

what slot does gpu go into ZOTAC ZBOX,SFF, i7-13700, RTX4070, 2 DDR5 SODIMM Slot, SSD Slot, SATAIII Bay, WiFi, BT, LAN, GLAN, 3X DP, HDMI, EU+UK Plug : :