Quadram Short

This memory expansion card is from Quadram, namely the short version. As far as I know, there is no documentation for this short card on the Internet. This card is a memory expansion card only.

Figures

DIP switch settings

I am using the short Quadram memory expansion card in the following RAM configuration:

• IBM XT 5160 ..... : 4 x 64 ......... = 256 KByte
• Quadram short ... : 2 x 64 + 1 x 256 = 384 KByte
• --- DIP switch SW1 ---
• --- 1 2 3 4 5 6 7 8 --
• --- 0 0 1 0 0 0 1 0 -- // 0 = OFF, 1 = ON

This setting is only valid for the combination 256 + 384 = 640 KByte!

Notes

The Rampage! and SixPakPremium memory expansion cards from AST have the same settings for the first four DIP switches. Assumption: Here the so-called start address is set; in this case 256 KByte.

Links

• Minus Zero Degrees: Some Quadram Cards.