Memory Expansion Board (250-5030) Settings Faxback Doc. # 2037 There are no Jumpers or Dip Switches on this board. 2 Meg expansion board for the Tandy 4000 Comes with eight 256K X 9 SIMM chips at 100 ns Uses specialized 32-bit expansion slot on 4000 & 4000A *NOT for use in 4000LX, 3000NL, or 5000MC (RJS/jlc-03/28/94)