I Nee Advise, Seagate Hard Drive

[chelsifer]

I have a mac 8600 with a 9600 mother board installed, OS 9.2 . SONNET G3 400 Megahertz CARD. IX Ultimate Rez video card, Adaptect AHA-2439UB2 scsi PCI card, 19 gig Seagate cheeta drive. Two digital 8 track Layla recording cards installed in the PCI slots, USB 1.1 CARD. After a few test runs and about 1 hour of recording time the drive became corupted. My mac could not see the drive. There was a warning sign that said drive unreadalble! Now I would not think this so unique however I also have a standard (mac) scsi drive with a 2 gig seagate drive hookup and that to is behaving the same exact way? Please someone help I just want to record!

[Nicolas]

Hello,

welcome to MacGurus Tech Forums.

Do you have recently changed something on your gear?

Or is it a new build up system?


BTW I never had troubles with Seagate drives.

Regards

Nicolas

[chelsifer]

Yes, this is kind of a newly built system:
The mother board is not the stock mother bord.
But I do not think it should really effect the way
the computer will look at or reconize the Secondary
or Third hard drives. Unless 9600 do not like secondary
drives it should work?

The hard drive and scsi card are of an older model
but do work fine. I have also used adaptec scsi software
to intitialize the hard drive:
I wondering if this could be a software issue.
Does anyone think disc warrior will help?

[Nicolas]

OK, your card is a 2940U2B right?

So your SCSI chain on the Adaptec looks like this?
Adaptec-------------Drive------ Active Terminator

What Seagate drive is it exactly (ST1234567)?

Regards

Nicolas

[chelsifer]

Yes, it is an Adaptec AHA-2940U2B
The chain is correct and it is terminated
It has worked but stopped working about an hour into
operation. After I copied files from one hard drive
to the next.

The Hard drive is ST136403LC

[Nicolas]

Your SCSI drive has a SCA connector and you are using a SCA to 68pin adapter?

Are those jumpers on the Adapter correctly set?

Also those on the Seagate?

Next thing to check is your G3 upgrade. Since the system works for about one hour, your problem could be a heat issue.

Last thing to check is your RAM, some RAM modules are not compatible with G3/G4 upgrades.

You removed the cache from the Logicboard too?


Regards

Nicolas

[chelsifer]

I contacted Seagate before I started this upgrade
project and they sent me the proper SCA adapter.
And recomended the proper LVD cable.
Keep in mind the stock scsi connector on the outside
of the (9600) has a 2 gig hard drive connected to that
and it has the same problems? also this behaves in the
same fashion as the internal secondary drive at start
up in the cold 60 degee's ferenhiet

The Processor I have had in the machine for a couple
of years and had permently remove the level 2 cache
memory as required by Sonnet instructions

As far as the Ram memory it is upgraded as well
to about 384 mb.

[Nicolas]

Take a look at the Memory Reference Page

Do you have Gauge Pro or something like that to check CPU temps?

Regards

Nicolas

[chelsifer]

What is the normal Temp. that the CPU should
run?

The Tempreature can also change as you use
your computer right?

I believe I may have some bad Ram memory!

I utilized Memory reader and it came up that
error in logtexet I tried to read it but I could
not open it up?

[Nicolas]

The G3 in my B&W is running at 400MHz temps are in the upper 30's:
34C idle to 39 on load.

Is your memory interleaved?

Gauge Pro has a RAM test too.
Let it run for 2 hours or so to check that.

Regards

Nicolas

[chelsifer]

Yes, it is interleaved.

After I use gauge pro memory test will
it let me know if thier is a problem with
any of my memory?

Yes the Processor is running at the
desired Temps:

[Nicolas]

Yes, it will stop and displays an error message.

Regards

Nicolas