Got it populated with the full 2 MB now, here are the settings! DIP1 - OFF DIP2 - OFF DIP3 - OFF DIP4 - ON DIP5 - OFF DIP6 - OFF DIP7 - OFF DIP8 - OFF DIP9 - OFF DIP10 - OFF

Therefore the card is working now and you can use the extra RAM under DOS? Great! Can you please post all the jumper settings for future reference? Absolutely. These settings give me 1,5MB of extended memory on top of the 640K that was already installed in the system. DIP1 - OFF DIP2 - OFF DIP3 - …

Does not look that bad. Your card seems to have 2mb onboard. The screenshot Shows 512kb is ok, indicated by the blue 0000000... The 45080008 indicates some error. For me it seems only the Last 512kb is working. I would remove all ICs except the ones in bank 0 first to locate the error. Then run …

This one looks similar, but has 2 DIP blocks https://forum.vcfed.org/index.php?threads/quadram-libarty-at-16-bit-ram-board.74375/ Did you read the thread from the beginning? If you dont find any information about the card run testext.exe first to get the current configuation. Yes, I've read the …

Hey guys, I recently purchased this 2MB Quadram card for my IBM AT, but it didn't come with any documentation. Would be grateful for any help regarding jumper settings. My system has 640k of base memory already installed. Best regards, John