Hi, I have a KDF-11B (that's the quad sized PDP-11/23+ CPU with onboard serial ports and bootstrap/terminator) that's too old to know how to boot from MSCP (e.g. RQDX/RD5x) drives. I know later versions of this board could do that and I was planning to just upgrade the EPROMs on my board, but all the later EPROM images are 8K bytes - my board has only 2K (2716) 24 pin EPROMS. There's no way (at least no simple way) to install 8K 28pin EPROMs. Actually, the EPROM sockets on my board are so close together that I don't think I could get 28 pin devices to fit even if I did "flying leads" for the extra 4 pins. Did the later KDF-11B boards really have 28 pin sockets? Is this upgrade hopeless? Does anybody have a system for disassembling and then re-assembling these EPROMs? If I throw out all the useless bootstraps (e.g. the RK, MRV11 ROM or DECnet boots) there ought to be room even in 2K for a DU boot. Bob Armstrong