>  >>>
>>>>   --
>>>
>>>  Eric, This sounds like a RAM issue.  How much is installed and is it
>>>  interleaved?
>>>  Sorry, I'm not familiar with your setup can you describe it at the
>>>  time
>>>  of install ?
>>>  IDE or SCSI, PCI slots, Processor and video card and so on.  it would
>>>  help.
>>>
>>>  Also, what version of XpostFacto are you using?
>>>
>>>  I personally have not had success with IDE, I installed to SCSI and
>>>  "cloned to IDE"
>>>  with Carbon Copy Cloner or Apple Restore. I have a 2.1 & 9.1 IBM SCSI
>>>  drive to
>>>  initiate, then I move to my larger IDE drives.
>  >
>>  Thanks for your reply. I used the latest version of XpostFacto 2.2.4.
>>  I have a Sonnet Tempo A66 PCI card to which the IBM 40GB drive is
>>  attached.  It is not a ram issue as the Sonnet G4 Pram restore floppy
>>  boots with 490 MB of ram OK. If it were ram problems, the floppy
>  > would not boot the S900.  All the ram is the same.
snip
>  But this is as far as we
>  > can go as no amount of CUDA pressing or op.-Apple-p,r keys pram
>>  zapping brings any change in this corpse.
>>  Eric
>
>Eric, Don't be so quick to say it isn't a RAM issue...
>OSX is way fussy about RAM and has given me endless problems with RAM.
>I would have thought you'd have seen my posts about  this by now.
>What I have learned about RAM issues with OSX and my UMAX J700/S900
>machine.
>CPU speeds over 300mhz will result in having to restart several times
>in order to boot if you have any weak or slightly flacky ram. The fact
>that it boots and runs fine in OS 9.x will make you think it must be
>something other then RAM. I did testing with Gauge Pro and moved the
>RAM around to different slots and removed a couple of old 8mb ram chips
>that may have been causing the problems. Things seemed fine the next
>major problem was when I updated to 10.2.1 . I could boot and start up
>once then on the next boot it would hang at some point in the startup.
>Running Disk Warrior and Norton Disk Doctor from OS 9.x fond all sorts
>of disk corruption etc. I finally bought a new hard drive thinking that
>would be the fix. Well no it wasn't. Gauge pro sometimes showed errors
>in testing RAM but I couldn't be sure which ram chips it was. This was
>driving me nuts. I thought for sure it was new machine time. I decided
>to take my RAM to a local ram shop which lucky for me has one of those
>expensive testing machines. To my surprise all of my ram was fine but
>two chips which weren't labeled turned out to be FPM and I had been
>interleaving them with EDO chips and I had one older chip that was 70ns
>speed which they suggested I not use as it often causes problems at CPU
>speeds over 300mhz.  That fixed my problems to my amazement !
>       If all your ram is the same then likely you can't run it with out
>interleaving it...Oh but you can. Just for example if all the slots are
>full remove all the A or B slot RAM and just run it with the opposite
>slots full. RAM which causes problems when interleaved will often  run
>ok when not.
>       I can't say if ram is your issue or not...but it is worth looking into
>based on my experience with OSX for over 2 years now since the
>development days before the beta. All it takes is one small thing that
>can be hard to track down. RAM and the CDROM player have been the
>biggest issues with OSX on UMAX machines. In the early days only an
>APPLE CDROM player would install OSX. This has changed back and forth
>with some versions of OSX installing from most any CDROM player . Best
>of luck. Will S
>

Three of the sticks in the machine that failed were unknown.  All the 
rest were EDO. It may well have been a ram issue.  After my 
misfortune, I'm testing ram on 1 S900 with Ramometer and so far I GB 
has passed 1000 cycles.  The other S900 had a bad stick which may 
have come from using an untested stick from the chaos that surrounded 
this sorry tale.  So I will do the Jeff Ram Sandwich protocol and so 
far we have 656 MB in test and call it a night.
Eric

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