I've got a similarly set-up board, and it uses the typical 1MB DRAM DIP's configured as 256Kx4 bits. If you plug up the reamining sockets with 80ns 25Kx4's, you'll have a 4 MB expansion board. It won't help much unless you've got lots of people using the printer over a LAN, however, since it transfers data at a relatively low rate and it has a fixed maximum print rate. I've got an HP LJIId with 2 MB in an expansion memory, an LJIIId with 4MB of expansion memory, and an OKILASER 1200 with 10 MB of add on. These operate at 8ppm, 8ppm, and 12 ppm, regardless of whether they have the minimum of memory or the maximum. IMHO, your 2 MB is plenty. Dick ----- Original Message ----- From: "ysgdhio" <ysgdhio(a)yahoo.com> To: <classiccmp(a)classiccmp.org> Sent: Sunday, October 21, 2001 4:20 PM Subject: what RAM for this printer memory board?