Lisa Sun Remarketing scsi card 92 error

[bmwcyclist]

Hello everyone!

I just recieved a new Sun Remarketing Lisa SCSI card from Vintage Micros.

The card looks great but it is giving me a Card Error 92 on bootup.

I tried to bypass the error and boot to my XLerator 16 SCSI (with BlueSCSI) but it would not boot.

I am choosing option 4 (fast ram, Sun SCSI) or option 1 (fast mode only)

I have tried it with and without a known good BlueSCSI module.

Any suggestions or help would be appreciated. Thanks!

[Kelly king]

     Try using the slot that is covered. That is where my SCSi card is seated.
      Good luck. I enjoy all your posts.

[Lisa2]

Are you trying to directly boot the Lisa from the SCSI card?  or using a MW boot floppy and then booting from the SCSI drive?

FYI, unlike a par port drive, Lisa can't directly boot from a SCSI drive without a QuickBoot ROM on the Sun card, or a LSAC card for the Xlerator SCSI port.

[bmwcyclist]

     Try using the slot that is covered. That is where my SCSi card is seated.
      Good luck. I enjoy all your posts.

Will do. Thank you !

[bmwcyclist]

Are you trying to directly boot the Lisa from the SCSI card?  or using a MW boot floppy and then booting from the SCSI drive?

FYI, unlike a par port drive, Lisa can't directly boot from a SCSI drive without a QuickBoot ROM on the Sun card, or a LSAC card for the Xlerator SCSI port.

I am booting from an ESPROFILE into Mac Works +2.

[sigma7]

Any suggestions or help would be appreciated

1) edit: It appears I was incorrect and the labelling for this particular brand/part is indeed 220/330 for the 220 + 330 ohm variety of the network.

I think the terminator arrays (R2 & R3) may not be the correct part. They should be 220 ohm/330 ohm terminator networks, which are typically labelled as 221/331 since the last digit is a 10's multiplier. The pictured parts' 220/330 suggests to me they are 22 & 33 ohms. You could double-check with an ohmmeter by measuring resistance from pin 1 to pin 7 and pin 1 to pin 14.

For a short SCSI bus with one host and one device, often one needs only one set of terminators. For a longer bus or multiple devices, two sets are used/needed (one set at each end of the chain). Since your bus is very short, you can try removing the terminators from the SCSI card and just use/enable the ones on the BlueSCSI.

2) However, I think error 92 indicates the CPU ROM thought it found an expansion card ROM with code to be checksummed, which is not correct for the stock SR EPROM (it should be all 00s except for an ID byte). If you can dump the ROM with BLU or an EPROM burner or even just look at it with service mode, that may reveal an issue. If the ROM doesn't have the expected ID byte then MW+/II won't recognize it as a SCSI card, possibly matching the symptoms you describe. I believe the BlueSCSI light will flash when the host attempts to access it, so if you don't see any flash when booting MW+/II then it suggests the SCSI port wasn't recognized (and/or it could be the terminator problem above).

3) The XLerator SCSI should work regardless of the SCSI card. If you remove the SCSI card and plug the BlueSCSI into the XLerator SCSI port, MW+/II should be able to access it once booted (from the Parallel drive or a floppy). Again the BlueSCSI's terminators should be enabled as the XLerator does not have terminators.

4) In the picture, I see the mounting bracket for the XLerator SCSI is the early galvanized type. When mounted to the back panel, the galvanizing on the bracket was found to cause problems with some drives, so the brackets were replaced with stainless steel ones. A work-around for this potential problem is to leave the bracket unattached (ie. insulated) from the back panel so the galvanized bracket is not grounded.

[bmwcyclist]

Wow fabulous reply. Thank you.!

[bmwcyclist]

1) I think the terminator arrays (R2 & R3) may not be the correct part.

Photos attached. They seem to match my passive terminator.

2) However, I think error 92 indicates the CPU ROM thought it found an expansion card ROM with code to be checksummed, which is not correct for the stock SR EPROM (it should be all 00s except for an ID byte).

Well crap. I don't have an EEProm burner. If it is bad is the ROM code posted somewhere? I have a couple of friends with burners.

3) The XLerator SCSI should work regardless of the SCSI card.

I agree. It works fine without the card in.

4) In the picture, I see the mounting bracket for the XLerator SCSI is the early galvanized type. When mounted to the back panel, the galvanizing on the bracket was found to cause problems with some drives, so the brackets were replaced with stainless steel ones. A work-around for this potential problem is to leave the bracket unattached (ie. insulated) from the back panel so the galvanized bracket is not grounded.

WOW, good to know. I will see if I can stop it from grounding.

[bmwcyclist]

     Try using the slot that is covered. That is where my SCSi card is seated.
      Good luck. I enjoy all your posts.

Thanks for the suggestion, I tried it in the other slot and no help this time. I will (assuming I get it fixed) continue to use this slot for all future use.

[bmwcyclist]

If the ROM doesn't have the expected ID byte then MW+/II won't recognize it as a SCSI card, possibly matching the symptoms you describe. I believe the BlueSCSI light will flash when the host attempts to access it, so if you don't see any flash when booting MW+/II then it suggests the SCSI port wasn't recognized (and/or it could be the terminator problem above).

4) In the picture, I see the mounting bracket for the XLerator SCSI is the early galvanized type. When mounted to the back panel, the galvanizing on the bracket was found to cause problems with some drives, so the brackets were replaced with stainless steel ones. A work-around for this potential problem is to leave the bracket unattached (ie. insulated) from the back panel so the galvanized bracket is not grounded.

no blinky blinky on the BlueSCSI when using the Sun SCSI card.

ADHOC I have isolated the back plate with scotch tape until an upgrade can be acquired. (don't tell anyone, it looks embarrassing.. )

[Kelly king]

       
       I use internal hookup for my scsi board no problems but I'am
        using a mechanical scsi hard drive. Never got the BlueSCSI to work
         on external port.
       

[bmwcyclist]

Interesting!

I don't know if I still have a SCSI drive around....

[sigma7]

Sorry I wasn't clear... I meant pin 1 to pin 7 and pin 1 to pin 14 on the terminator part itself, but I think measuring 1 to 14 on the DB25 and comparing to a terminator is satisfactory to show the terminator is the correct part.

Even so, I would try removing the terminators, or disable the BlueSCSI terminators so there is only one set in use.

The SCSI expansion card does work in all 3 slots normally.

You can examine the expansion card ROM from service mode.

Once in service mode, type one of the following lines according to which slot the card is in:
The first "1" selects "Display memory" so it won't be shown on the screen. The second <return> is a null entry to the "Count?" query, which defaults to 0x10 bytes.

Slot 1

Code Select Expand

1FC0000<return><return>

Slot 2

Code Select Expand

1FC4000<return><return>

Slot 3

Code Select Expand

1FC8000<return><return>

Like almost all Lisa expansion cards, the SCSI expansion card ROM is 8 bits wide, so only half of each word displayed is coming from the ROM. That's the low byte (the right two characters of each word displayed).

The ID byte of the SCSI ROM is at offset 1 in the ROM, and should be 0x1B in this case. The rest of the ROM is zeros.

eg. if in slot 2, I would expect you to see

00FC4000    xx00 xx1B xx00 xx00 xx00 etc.

where xx is data not coming from the ROM (it might be random or coming from some other hardware on the card), so can be ignored in this case.

For completeness: if you had a QuickBoot ROM installed on the SCSI card instead of the SunRemarketing SCSI ROM, you'd see
00FC4000    xxE0 xx1B xx01 xx01 xx60 etc.

[sigma7]

Never got the BlueSCSI to work on external port. 

I have used the 25 pin BlueSCSI on the SR SCSI card successfully; feel free to start a new thread if you'd like some help troubleshooting.

[bmwcyclist]

You can examine the expansion card ROM from service mode.

For completeness: if you had a QuickBoot ROM installed on the SCSI card instead of the SunRemarketing SCSI ROM, you'd see
00FC4000    xxE0 xx1B xx01 xx01 xx60 etc.

You are a national treasure! Thank you!

So... What are the ramifications of installing a QuickBoot ROM and are they available?


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