[ I'm the isp author ]

I wouldn't necessarily try and reflash this card- it's a special for
MACs I believe.

I keep on getting pulled into this, but I've never had access to a
system that actually has this.

Since you have some cards, can you loan me one to put into one of my G4s
so I can try and put this to bead once and for all?

A 'RAM Checksum failure' has to do with downloading f/w to the card and
then issuing a mailbox command to ensure that the download worked. The
fact that it didn't means that SRAM has been corrupted.

There are two possible areas where we might need to adjust:

a) For 'jackhammer', do *not* download newer f/w. Live with whatever OBP
or other PROMS have set up.

b) For 'jackhammer', the memory timing register (MTR) on the ISP chip
should *not* be reset to that which is normal for any other QLogic- it
has to be left alone (because somebody did a completely different memory
I/F for the SRAM that the chip is talking to). This is an area of h/w
support that is not something that is easy to infer from any parameters
or first principles.

But to check all of this out, I need a bloody card. Can you loan me one?

-matt


On Fri, 22 Nov 2002, Christopher Tribo wrote:

>
> 	I read a thread about a year back in regard to the JackHammer not
> working correctly. But nothing else was really said beyond the driver
> needed additional code for the card. My jackhammer probes as this:
>
> isp0 at pci0 dev 15 function 0: QLogic 1020 Ultra Wide SCSI HBA
> isp0: interrupting at irq 25
> isp0: Ram Checksum Failure
>
> 	I downloaded flashers, code and nvram data from Qlogic's web site
> for the only card that looked close, FastMac1020 I think it was called, in
> the obsolete hardware side. Tried to flash or even use the SIM Init to
> erase the card and start it fresh, but none of the Qlogic utilites worked.
> that they couldn't find any Qlogic hardware. I found a few hits on google
> to hammerstorage.com which is now some web site where every hit it gets
> makes a commision on redirecting to somebodys ebay site. I t was supposed
> to be the last place you get the latest firmware for this card.
>
> 	Like they mentioned in the last thread on the subject, the card
> has a PCI ID of 1077 which is Qlogic, not FWB. So are we left to conclude
> that there's something different about the card that makes it unusable
> except by FWB's HDT or Raid toolkit software? I have three of these SCSI
> Jackhammer PCI cards, I have one NuBus SCSI Jackhammer card, and I have a
> MicroNet Raven Pro PCI 1020A based PCI card.
>
> 	This article is of a bit of interest, but no help:
> http://www.geocrawler.com/archives/3/2/2001/12/100/7294458/
>
> 	Also, it looks like the Raven card uses a rebranded set of tools
> from what is now FWB HardDisk Toolkit on MacOS.
>
> 	It wouldn't be something so simple as a missing endian check and
> possible swap from eb to el on the checksum would it? The same card in an
> x86 system reports the same thing, Ram checksum error.
>
>
> 	Chris
>
>