>Date: Tue, 01 Oct 2002 14:59:54 -0400
>From: mikeyw <[EMAIL PROTECTED]>

>Howdy List - I was recently lucky enough to get a great deal on a 7600 on
>Ebay from a very reputable seller. To my delight, instead of the 32  megs of
>ram and 132 MHz CPU as advertised the machine had 144 megs and a 180 MHz
>604e from a 7300 and the full four megs of video.
>
>That's the end of the good news. I've spent the last week trying to set it
>up to run with stability. I am getting errors almost constantly, more times
>than not even on booting. The whole assortment of common errors, error 11,
>bus errors, system 3 errors, finder has quit errors, and on and on. I'm
>starting to think that maybe my system board is bad.

>I tried so far, swapping memory in and out all the way down to a single 32
>meg DIMM in all various slot combinations; tried using the onboard SCSI
>only, using a Powerdomain 2930CU instead and I just bought an Acard Ultra66
>ATA controller (not really great troubleshooting technique - but I wanted
>the added speed anywhoo). So far no joy.

It could also be the CPU card.   Are you sure it is from a 7300? 
For example, if it is a PowerComputing CPU card, it might be trying 
to run your 7600 at too high of a bus speed which could cause these 
problems, though I wouldn't expect it to boot at all if you ended up 
with a PCP 604/180 card.    If you have another CPU card handy, I'd 
try that.  Also try just removing and reseating the CPU card if you 
have not already.  You should be able to pick up anything from a 
PPC601/100 to a PPC604/150 card for about $10.   Comes in handy for 
testing to have another CPU card around.

Also, are you sure you have your SCSI chain configured correctly? 
Improper termination will be a problem whether you plug the end of 
the cable into the motherboard or a PCI SCSI card.   You may wish to 
remove all device from your SCSI chain, enable termination on your 
CDROM drive, plug the CDROM drive into the end of the internal ribbon 
cable and then try booting from the CDROM drive and see how things 
go.  If your problems go away, I'd guess incorrectly configured SCSI 
chain.

It's also possible that your SCSI ribbon cable is at fault, even if 
your devices are configured properly.  Do you have another ribbon 
cable you can use?

Since you bought an ATA card, you may wish to disconnect all SCSI 
cables and devices and just use the ATA card and see if the problems 
persist.

Jeff Walther

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