A3000 SCSI needs battery?

[TheGoose]

I'm having some issues but think I found out why:

"The built in SCSI host adapter - based around the Western Digital 33C93 SCSI controller - supports up to seven devices connected simultaneously. The controller's configuration is stored in a NVRAM powered by the same battery which the clock is."

I pulled my battery, it was in bad shape. Computer is still running but HD is not working well, checksum errors all over. Sooo, I need to get a battery to make everything happy again, yes?

Also, thinking about getting bigger, better, newer drive anyways. What will work? SCSI, SCSI-II? 7200 RPM?


Thnaks again to the A-org brain trust...

[adolescent]

A new battery won't help checksum errors.  The battery is only there to hold a couple of settings in NVRAM; SCSI ID, synchronous/asynchronous, etc.

[TheGoose]

Ok, checksums aside, storing the SCSI ID does seem a little important.

Thanks

[Zac67]

It defaults to 7 when NVRAM is not initialized/corrupted.

Checksums errors are due to disk degradation and/or cabling/termination.

[tone007]

My 3000s work perfectly without batteries.  SCSI ID surely goes to default with no battery.  Waste of time replacing them, I think.

[TheGoose]

That's what I think...no battery is preferable. Say, it goes to 7, you mean the the controller? What is it with the battery? Sorry, I don't know a lot about Amiga onboard SCSI.

Mostly use my A1200.





 

[Zac67]

All SCSI controllers I've seen default to ID 7 - it's the ID with the highest priority on narrow SCSI.

[Darrin]

No battery in my A3000 and SCSI working fine here too.  I still prefer IDE though.  ;-)

[Iggy_Drougge]

Darrin wrote:
I still prefer IDE though.  ;-)

Surely for its speed, no?

[Iggy_Drougge]

TheGoose wrote:
Also, thinking about getting bigger, better, newer drive anyways. What will work? SCSI, SCSI-II? 7200 RPM?

Basically, anything SCSI will work, using the proper cable. Never 68-pin or SCA drives will of course need an adapter or cable for the 50-pin connector in your A3000. And pay attention with regard to the termination.
Some drives will refuse to cooperate, but that's an individual issue concerning certain models. RPM or SCSI version is irrelevant. I ran a 10000 RPM 68-pin drive in my A3000 last week without any problems.

[Darrin]

Iggy_Drougge wrote:

Surely for its speed, no?

No, for the fact that my office is littered with cheap IDE devices salvaged from PCs.  :-)

[Iggy_Drougge]

Darrin wrote:

Iggy_Drougge wrote:

Surely for its speed, no?

No, for the fact that my office is littered with cheap IDE devices salvaged from PCs.  :-)

That's like saying you prefer ugly men instead of beautiful women (or men, depending on your inclination).

[Amiga4k]

The clock and date are powered by the battery. When there is no battery, just what datestamp is used? Check it out!

That is where an error has potential to create havoc.