Hi everyone, I have an old Compaq Portable III with 640K internal RAM and no RAM extension card. The 640K internal RAM comes from 2*256K SIMM modules + 128 soldered on the motherboard. I found on my closet 2*1MB SIMM modules that seems to work with that Compaq, but it only detects 640K instead of the full capacity. I tried to configure jumpers on the board but I didn't succeeded to get the full RAM capacity. My question : do you know if it is possible to get more than 640K memory without any RAM extension card ? Thanks.