Re: SiriusRAM GS problems

[Charles Stephens <devnull@dobbs.eng.sun.com>]

>>>>> "S" == Supertimer  <supertimer@aol.com> writes:

 S> Charles Stephens <devnull@dobbs.eng.sun.com> wrote:
 >> Today I received my Sirius RAM card and I immediately populated it
 >> with 8 1MB SIMMS.  However the system crashes early in the boot
 >> process when there is 8MB installed.  It is happy with 1, 2, or 4, but
 >> not 8.

 S> What kind of RamFAST is it?  Rev. C or Rev. D?  The Rev. C
 S> card is full length and the Rev. D one is half length.  The Rev. C
 S> card cannot DMA to 8MB, so you will have to turn DMA off.
 S> The Rev. D can DMA to 8MB fine.  If your RamFAST came
 S> from Sequential, it is Rev. D.  If it came from CV Tech, it could
 S> be either, but more likely Rev. C.

It is Rev D.

 S> Second, make sure there are 8 SIMMs on there.  Although
 S> Alltech used to say that you are supposed to take out one of the
 S> SIMMs on a ROM 3, this leads to problems.  Plug in all 8 SIMMs
 S> and use it that way (you lose the 1MB from the motherboard
 S> this way, but you gain it back on the extra SIMM you put in).

Yes, all SIMMs (in different combinations) were installed on the card.
It just did not work.  I am suspecting the Vulcan card and DMA.  Is
there anyway to turn off DMA on that card?

cfs
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