CRONEJP@UREGINA1.BITNET (Jonathan Crone) (12/25/87)
I just got my micron technologies single slot chassis in the mail today and attempted to hook it up and install a Commodore 2052 2 meg ram board in the unit. if the chassis is sitting empty the machine boots with no problems. as soon as i install the memory board into the chassis, the computer runs through the kickstart initialize sequence, and then does the color cycling routine prior to requesting the workbench diskette. and chokes after cycling past the dark grey, and locks up on light gray and refuses to do anything. This was supposed to be my Christmas present to myself because i can count on no one else getting me anything interesting, and now i'm sitting here staring at a working empty chassis VS a bombed full chassis. I was planning on digging out the multimeter and checking all the voltage levels next.... then i would go after the pals.... can ANYONE tell me what the hell might be wrong????? ESPECIALLY COMMODORE....... Jonathan Crone CRONEJP@UREGINA1.BITNET If the gods are willing... this is a path that works to me. psuvax1!husc6!mit-eddie!ll-xn!ames!ucbcad!ucbvax!UREGINA1.BITNET!CRONEJP Pithy Saying 23. Life sucks..... and it sucks worse at Christmas time
eric@hector.UUCP (Eric Lavitsky) (12/27/87)
In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET.UUCP writes: >I just got my micron technologies single slot chassis in the mail today >and attempted to hook it up and install a Commodore 2052 2 meg ram board >in the unit. Don't understand why you did this - the Micron memory board is way superior to the Commodore design (no offense guys :-), because of the following: 1) 4 layer PC board (CBM is two layer) - means less noise on the bus. *I'll* guarantee you that 4 Micron boards will work in a B2000 (won't speak for ther Germans!) 2) Socketed RAM array (CBM is soldered) - means bad chips are easily replaced. 3) Full diagnostics (CBM comes w/none) - means that you can determine which chips if any are bad. 4) Long warranty (two years I think) >if the chassis is sitting empty the machine boots with no problems. >as soon as i install the memory board into the chassis, the computer >runs through the kickstart initialize sequence, and then does the >color cycling routine prior to requesting the workbench diskette. >and chokes after cycling past the dark grey, and locks up on light gray >and refuses to do anything. 5) The Micron board (ASDG's design) is a superset of the Zorro board specification. It provides full Zorro bus buffering and arbitration on the board. Because of this, the Micron/ASDG memory board will work in just about any Zorro or Zorro subset box around. The ASDG MiniRack-C was a Zorro subset box; the Micron single slot adapater is a Zorro subset. The CBM board expects to be plugged into a *full* Zorro backplane. >This was supposed to be my Christmas present to myself because i can count >on no one else getting me anything interesting, and now i'm sitting here >staring at a working empty chassis VS a bombed full chassis. Sorry to hear it, but there's not much you can do. If you can return the CBM board and get a Micron board (I hear Able has it for under $350.00), I'd recommend doing that. >Jonathan Crone >CRONEJP@UREGINA1.BITNET > Eric Lavitsky #disclaimer - I work for ASDG and so my ideas and opinions should be taken with a very small grain of salt - 'course my opinions are my own, and I do try to be as unbiased as possible. ARPA: eric@topaz.rutgers.edu "Lithium is no longer available UUCP: ...{wherever!}ulysses!eric on credit..." ...{wherever!}rutgers!topaz!eric - from Buckaroo Banzai SNAIL: 34 Maplehurst Ln, Piscataway, NJ 08854
perry@well.UUCP (Perry S. Kivolowitz) (12/27/87)
In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET (Jonathan Crone) writes: >I just got my micron technologies single slot chassis in the mail today >and attempted to hook it up and install a Commodore 2052 2 meg ram board >in the unit. >if the chassis is sitting empty the machine boots with no problems. >as soon as i install the memory board into the chassis, the computer >runs through the kickstart initialize sequence, and then does the >color cycling routine prior to requesting the workbench diskette. >and chokes after cycling past the dark grey, and locks up on light gray >and refuses to do anything. > >This was supposed to be my Christmas present to myself because i can count >on no one else getting me anything interesting, and now i'm sitting here >staring at a working empty chassis VS a bombed full chassis. > >I was planning on digging out the multimeter and checking all the voltage >levels next.... then i would go after the pals.... > >can ANYONE tell me what the hell might be wrong????? > >ESPECIALLY COMMODORE....... > > > >Jonathan Crone Congratulations. To save a few dollars (maybe) you've wasted quite a few. The CBM memory board will only work in a full Zorro environment. The 86 pin connecter off the Amiga is NOT a full Zorro environment. ASDG (who designed the Micron two meg memory board) designs their boards to work in full Zorro OR an 86 pin environment. You bought the wrong board. Besides the CBM memory board consumes about three amps for two megs, I am told. The A1000 will only deliver 1 amp off the side. The ASDG/Micron boards consume 1 amp. The ASDG EIGHT megabyte board doesn't even consume three amps. Which leads to the following comparison: 4 CBM 2052's at 3 amps yields 8 megabytes in four slots at 12 amps. 4 ASDG/Micron 2 meg boards at 1 amp yields 8 megabytes in four slots at 4 amps. 1 ASDG 8MI at 2 amps yields 8 megabytes in 1 slot at 2 amps. The Micron boards costs less, comes with more support, has a warranty 8 times longer than CBM's, consumes 1/3 as much power (and produces 1/3 as much heat), has socketted ram array for easy servicing, and is generally a better board. The ASDG 8MI is a better choice for those going past 2 meg though. Those slots disappear soon enough even without 4 two megabyte boards. The 8MI can be populated at 2, 4, 6, and 8 meg. Hope this helps Perry --- ASDG Inc.
grr@cbmvax.UUCP (George Robbins) (12/28/87)
In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET (Jonathan Crone) writes: > I just got my micron technologies single slot chassis in the mail today > and attempted to hook it up and install a Commodore 2052 2 meg ram board > in the unit. > > can ANYONE tell me what the hell might be wrong????? > > ESPECIALLY COMMODORE....... Howabout Especially Micron and/or ASDG? I've never seen the Micron expansion device, but interpretations of the messages posted here by ASDG suggest that it may only be designed to work with the Micron/ASDG memory boards, rather than being a true "Zorro" compatible expansion chassies. Obviously, we don't have much to say. -- George Robbins - now working for, uucp: {uunet|ihnp4|rutgers}!cbmvax!grr but no way officially representing arpa: cbmvax!grr@uunet.uu.net Commodore, Engineering Department fone: 215-431-9255 (only by moonlite)
dml@loral.UUCP (Dave Lewis) (12/28/87)
In article <4861@well.UUCP> perry@well.UUCP (Perry S. Kivolowitz) writes: >The ASDG 8MI is a better choice for those going past 2 meg though. Those >slots disappear soon enough even without 4 two megabyte boards. The 8MI can >be populated at 2, 4, 6, and 8 meg. Yabbut it's EXPENSIVE!! Damn thing costs 500 bucks dead empty! I can get a fully populated 2meg board for less than that! I want one, I'm gonna buy one, but at these prices it won't be soon. Has to wait until after the 2001 anyway. (That should be 2002. A 2000, plus two Zorro-1 slots.)
cthulhu@athena.mit.edu (Jim Reich) (01/06/88)
In article <8712250110.AA26008@jade.berkeley.edu> CRONEJP@UREGINA1.BITNET (Jonathan Crone) writes: >I just got my micron technologies single slot chassis in the mail today Does that accept A2000 boards on the 1000? Perhaps the 2090 or the Pacific Periphs Overdrive??!?!!?!?!?!?!?!? - Jim
king@dciem.UUCP (Stephen King) (01/12/88)
In article <3315@ulysses.homer.nj.att.com> eric@hector (Eric Lavitsky) writes: >Don't understand why you did this - the Micron memory board is way superior - This is obviously a matter of opinion :-) >to the Commodore design (no offense guys :-), because of the following: > 1) 4 layer PC board (CBM is two layer) - means less noise - Also means MUCH higher cost. > 2) Socketed RAM array (CBM is soldered) - means bad chips > are easily replaced. - RAM chips rarely go bad, unless they are very poor quality, at least, this has been my experience, and the experience of most IBM-PC users who have never had RAM parity errors, despite the built-in ability to identify them. - Are they machine contact sockets? If not, I'd rather have the chips soldered in. Bad chips can be easily removed by cutting the leads off them and then desoldering each lead individually. Poor quality sockets are more trouble than they are worth. I am not implying that the Micron board is not a good product, just that the things you point out as advantages are not always so. ...sjk -- * Defence & Civil Institute * ...!{utzoo | mnetor}!dciem!king * of Environmental Medicine * Stephen J King - Simulation & Training Group - (416) 635-2149