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AuthorTopic: Help .....Adaptec 2940UW SCSI problem.  (Read 6439 times)

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Offline melott

Help .....Adaptec 2940UW SCSI problem.
« on: August 12, 2004, 02:29:21 AM »
I picked up an Adaptec 2940W/2940UW (dual 68 and 50 pin)
SCSI card on EBay. I don't think the card is bad.
The problem is it won't access a 68 pin drive. When I
install a 68 pin drive all the settings are ghosted.
Can't do anything with it. Device manager says the drive
is there and working properly and also the controller is
working properly.
When I install a 50 pin drive everything works great.
I've D/L'ed the install software from Adaptec and I think
its installed correctly.
It acts like a software setting is not correct, but I have
no idea what it is.
As you know.. Adaptec doesn't do Tech support unless you
buy directly from them and have a receit.
(My opinion .. they made the hardware .. they should support
it, reguardless where you got it from. That turns me off
about them :pissed: )
Stealth ONE  8-)
 

Offline Trev

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #1 on: August 12, 2004, 02:47:04 AM »
There are quite a few revisions of the 2940UW, but they mainly fall into two major categories--the 2940UW and the 2940UW PRO.

On the 2940UW PRO, you can use any combination of connectors.

On the 2940UW, you can only use two connectors at a time:

1) 68-pin internal, 50-pin internal
2) 68-pin internal, 68-pin external
3) 50-pin internal, 68-pin external

You must set the SCSI controller's termination based on how you're using the connectors. [Searching Adaptec's web site. . . .] Check the AHA-2940Ultra Wide Installation Guide (p.4) for more information.

Trev

EDIT: Always ask for pre-sales engineering support when contacting a vendor. You'll end up talking to a techie who couldn't case less about his employer's support policies and price structure.
 

Offline melott

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #2 on: August 12, 2004, 02:59:24 AM »
@Trev

I read that and followed the instructions but no luck.

The way it acts, it seems like I missed something.
But what......
Stealth ONE  8-)
 

Offline Wain

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #3 on: August 12, 2004, 03:11:37 AM »
Assuming that your drive is functioning properly, it's quite likely a termination issue.  Is your drive at the end of a chain? Is the drives termination enabled?  Is the 2940UW's termination set properly also?

Are you certain that the drive in question is functioning properly?
Drives can ID to the host card and still not work when they're broken.

Professional Expatriate
 

Offline Wain

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #4 on: August 12, 2004, 03:23:22 AM »
Quote


As you know.. Adaptec doesn't do Tech support unless you
buy directly from them and have a receit.


This is news to me.  I've always used Adaptec SCSI controllers in my PC's, never bought any from the company, (2 of them I got on ebay), and I've never had any issue receiving support from them.  Last time I called them was about a year ago on an OEM 19160 card I got online, they gave me outstanding support.

Professional Expatriate
 

Offline billchase

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #5 on: August 12, 2004, 03:38:56 AM »
Some of their older products are no longer supported.
You will have to look at the product page for the 2940UW
on their website and see what the support status is.

C Snyder
 

Offline Trev

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #6 on: August 12, 2004, 03:55:57 AM »
If you're running Windows 95/98/Me, you need to partition the drive using FDISK.

If you're running Windows NT/2000/XP/2003, you should be able to see the drive in Disk Administrator (Windows NT) or Disk Management (Windows NT/2000/XP/2003).

If all else fails (i.e. you've verfied that the SCSI bus is properly terminated, the host adapter recognizes the drive, and the Windows disk tools don't recognize the drive), you could try low-level formatting the drive. This is rarely necessary, but if the drive was used on a different host adapter or operated for an extended period of time in a different physical orientation (i.e. horizontal versus vertical), it might help.

Trev
 

Offline melott

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #7 on: August 12, 2004, 04:12:44 AM »
I've tried every config of termination (not many options)
and still the same results.
I can't format it, I can't do anything to it.
The settings are 'ghosted' (not available to change).
The drive is a brand new Fujitsu (compaq) 68 pin wide ultra.
I've also tried an old generic Quantum Atlas 68 pin drive.
Same results for both drives.
Oh.. I'm running Windows 98 SE.
My MotherBoard is a new (6 months old) ASUS A7V266-EX
1.3gig.
Stealth ONE  8-)
 

Offline Trev

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #8 on: August 12, 2004, 04:17:54 AM »
I'm not sure what you mean by "ghosted"--to which process or property sheet are you referring? Device Manager lets you change SCSI communication options for some devices (scanners, printers, CD-ROM drives, etc.), but otherwise, it's just for show.

Does FDISK recognize the drive?

EDIT: Are you sure the drive is single-ended? It could be differential (HVD), which is the "other" SCSI bus signaling method, mostly intended for reliability and long cable runs. However, low-voltage differential (LVD--Ultra2, Ultra320, etc.) should work fine on a single-ended bus. Given that the drive was sold by Compaq, it's probably not HVD if was intended for use in a ProLiant server.

Trev
 

Offline melott

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #9 on: August 12, 2004, 04:43:42 AM »
@Trev
--------------
Does FDISK recognize the drive?
--------------

No.. FDisk doesn't reconize the drive.
And yes.. the Fujitsu is a LVD drive.

I contacted Fujitsu support when I was trying to get
these 2 Fujitsu drives to work on my A3000 (didn't happen).
They said I shouldn't have any problems on a PC.
(They didn't know much about Amiga)

But this still doesn't answer why the Quantum Atlas shows
the same results.  This Quantum 4.3 gig is a generic and
should work on just about anything.
I have a Quantum Atlas 9 gig on my A3000 (same family) and
it installed with no problems. I want to save the Quantum
as a spare for my A3000.
Stealth ONE  8-)
 

Offline Trev

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #10 on: August 12, 2004, 04:54:34 AM »
If FDISK doesn't recognize the drive, then the SCSI controller isn't telling the computer's BIOS about the drive. Windows can still see the drive by enumerating the devices on the SCSI bus, which is probably why it's showing up in Device Manager. Are you positive that the SCSI controller's BIOS is enabled (i.e. the BIOS hook--not the ROM setup utility)? If you're booting from the SCSI controller, then the BIOS is almost certainly enabled.

A good, quick way to rule out Windows would be booting directly to DOS, preferrably with MS-DOS 6.22, but Windows 98 SE DOS should do in a pinch. Try creating an emergency repair disk and booting from that. You can copy fdisk.exe to the disk if it isn't there already.

You can also try fiddling with the performance and compatiblity settings by disabling 32-bit disk access. (I think this is done from the System applet--I'm a bit rusty with respect to Windows 98.)

Also, are you sure the drives don't require a jumper change to work on a single-ended bus?

Trev
 

Offline adolescent

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #11 on: August 12, 2004, 04:56:23 AM »
Couple of questions.  

1.  Does the drive show up in the Adaptec BIOS?  (CTRL-A at startup?)
2.  Do you have the correct AHA-2940UW drivers installed?  (ie. not the plain 2940 drivers)
Time to move on.  Bye Amiga.org.  :(
 

Offline melott

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #12 on: August 12, 2004, 04:59:30 AM »
@Trev

------------
 Are you positive that the SCSI controller's BIOS is enabled (i.e. the BIOS hook--not the ROM setup utility)?
------------

 :-?   Well, no I'm not sure.
What do you mean by Bios hook??

Would the 50 pin side work if this was not setup right??
Stealth ONE  8-)
 

Offline Trev

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #13 on: August 12, 2004, 05:07:18 AM »
After pressing CTRL+A to enter the host adapter's setup utility, you should see an option to "Enable SCSI BIOS" or something similar. This should be set to Yes. During the boot process, you should see a flag that says something like "SCSI BIOS installed" or "SCSI BIOS not installed."

As for the 50-pin side working . . . well, it depends. Different host adapters do different things. Some adapaters only support booting from ID 0, some ID 6. In the case of the 2940UW, you can specify the boot device, and it shouldn't matter which bus (narrow or wide) it's on. (OK, that was a bit off-topic.) Termination or ID conflicts are usually the cause of this kind of problem.

Many drives have two sets of jumper blocks--make sure you're using the right one. Also make sure that SCAM is disabled in the setup utility and that each device has had its SCSI ID set manually.

Trev
 

Offline melott

Re: Help .....Adaptec 2940UW SCSI problem.
« Reply #14 on: August 12, 2004, 05:07:23 AM »
@Adolescent

Yes I'm sure I have the correct drivers installed.

Uhhh...  :-?  I didn't check the Control-A, totally
slipped my mind.

Stealth ONE  8-)