Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!uwm.edu!linac!att!princeton!njin!spcvxb.spc.edu!terry From: terry@spcvxb.spc.edu (Terry Kennedy, Operations Mgr.) Newsgroups: comp.sys.dec Subject: Re: Help!! (PDP-1134a extended) Message-ID: <1991Jun16.014630.1483@spcvxb.spc.edu> Date: 16 Jun 91 01:46:30 GMT References: <1991Jun16.004606.10658@uokmax.ecn.uoknor.edu> Organization: St. Peter's College, US Lines: 74 In article <1991Jun16.004606.10658@uokmax.ecn.uoknor.edu>, sspatter@uokmax.ecn.uoknor.edu (Samuel S Patterson) writes: > P/N1210711 This card has 44 chips on it and room for another 132... > can't figure out what it does though... Here's the stuff off > the front of the chips too if it helps any: TMS 4532-20 > ZA1033-A3 P8044-P I think you're reading the 12-class part number off the handle - look for a 54-class part on the printed circuit card. Probably a memory board of some sort. Hoefully, since I see no other memory in this system 8-). > M9312 This one has a 3-wire cable running to the console... Bootstrap/terminator. Should live at one end of the bus or the other. Has device boot ROMs on it. > Rev D11 0066 I am totally !cxlue to what this one does. Not even sure that > is the card number. It's just the closest thing I found... > it has 4 26 pin connecters and 1 64 pin connect or in. No idea. Look at the circuit board for a 54-xxxxx part number. > M7762 This one is connected to my drive cable so I figure it's some > controller but I can';t find it in any of my books.. RL11, RL01/02 controller. > M8267 This one is plugged in next to the M8265 and M8266 cards and > has jumpers, connecting it to them. I suspected it was some > kind of coprocessor but the chips on it look more like > RAMchips... Floating point processor (FP11A). The M8265 and M8266 are the 11/34A CPU set (KD11E-A) > --------------------------The Rest------------------- > M9302 The other terminator. Should be at the other end of the bus from the M9312. > M9202 These connect seperate backplanes together. > M7856 (2 of them) DL11W serial port + clock. > M7859 11/34 programmer's console interface > M8265 & M8266 CPU, again. > And 2 serial connection cards... > ---------------------------------------------------- > Also I was wondering if I really need to have flip chips in every slot that > has a blank place in the 3rd slot from the back... > ----------------------------------------------------- If an entire Unibus hex slot is empty, you need a grant card in there. That's the G727 cards you're talking about. However, there are 2 catches: 1) this only applied to normal unibus peripheral slots. CPU backplanes may have dedicated slots that should be left open. The same is true for options like the RK611. 2) There is a 5th jumper needed, the NPG jumper, which is usually wired on the backplane with wire-wrap wire. I'd suggest finding a local PDP-11 hacker who can look at this for you. Terry Kennedy Operations Manager, Academic Computing terry@spcvxa.bitnet St. Peter's College, US terry@spcvxa.spc.edu (201) 915-9381