Re: RAM-Fast happy and sad

[jguy@pro-finders.cts.com (Jerry Guy)]

In <2435uk$280@dorsai.dorsai.org>
jeffwm@dorsai.dorsai.org (Jeffrey Mintz) writes:

>>I'll bet that the TWGS has all the "A" version of the GAL's. Try to get the
>>2B gal or turn off hte DMA on the RamFAST (just to verify that the problem is
>>DMA and old TWGS GAL's)
> 
> Besides looking at the TWGS card itself, is there a way to tell which GAL's 
> are in the TWGS?
> 
> Mine is Version 8S revision 1.5w
    Mine is also  ^^ and rev  ^^^^ and has all "A" GAL's installed. I don't
think you can tell without opening the machine up.
> 
> I am considering upgrading from the Apple DMA SCSI to the RamFAST and I'm 
> wondering if I would just be opening a can of worms

If your running with the Apple DMA SCSI with the DMA enabled the you should
have no problems with the RamFAST, but, I'd cjeck the GAL's before I changed
anything if your not having strange problems now. On some days the TWGS will
work fine with DMA and the "A" GALs but other days you can't even boot the
machine. I have an Apple Juice card (Applied Ingenuity) with 4 Meg and
experience the above. If I enable only 2 meg on the card  I can run with DMA
enabled on the Apple SCSI card with never a problem. With 4 meg and DMA I get
the 'only works if its raining in Spain' type of results. In others words the
TWGS's problem with DMA is intermitant (spelling?) and may vary depending on
yor power supply, hard drive type, rain in Spain....etc..

Jerry


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