Solved

Serial port on P578 (can't initialize)

Posted on 1997-01-07
1
503 Views
Last Modified: 2013-11-17
I NEED HELP!  I can't use my modem on my Macintosh.

I have a Performa 578 with 12 Meg RAM running System 7.5.1.  We've been using America Online without any trouble for months.

Suddenly last Saturday, I get this message from AOL 2.7:

     +------------------------------------------------+
     | We were unable to initialize your serial port. |
     | Try selecting a different port instead.        |
     | Please report error code -97.                  |
     +------------------------------------------------+

I tried another terminal program ("MacLayers," which I use to call into a Sun box at work), and got this message as soon as I double-clicked the application icon:

     +------------------------------------+
     | A nonrecoverable program error has |
     | occurred with Macintosh Layers.    |
     |                                    |
     | "Serial Port Not Configured"       |
     +------------------------------------+

I called 1-800-SOS-APPL, and they told me to reinstall the modem software (SupraFAX 144LC), and if that doesn't work, to reinstall the system software.

The modem software reinstall didn't seem to help.  I tried
a few incremental system installs, to no avail.  Finally
I decided that this would be a good time to get a clean start, so I backed up my 330 Meg drive and then wiped it clean with Silver Lining 5.6, and did a fresh install of System 7.5 (and 7.5.1 update) from Apple's disks.

Imagine my surprise when I got it all going again, and had the same error with MacLayers!  Even stranger, AOL now crashed with a bomb:

     +------------------------------------------+
     | Sorry, a system error occurred           |
     | "America Online v2.7"                    |
     | floating point coprocessor not installed |
     +------------------------------------------+

I was getting ticked.  I reinstalled AOL from one of my dozens of AOL install floppies, and got rid of the system error.  But I was still back at square one, unable to initialize my serial port.

Oh yeah, I also tried switching to the printer port in AOL's setup window, but that didn't help.  (And I still can't even get INTO MacLayers to change anything there.)

As a last resort, I even tried booting off the Performa CD, with System 7.1P.  Same problem.

So what do y'all think...is this a HARDWARE problem?  I was going post this to comp.sys.mac.system only, but since I can't seem to make any headway trying to fix it in software, I thought I'd crosspost to comp.sys.mac.hardware.misc. (I haven't heard a word in either newsgroup yet.)

Can anyone give me any clue of what might be going on?
"Help me, Obi-wan, you're my only hope..."

Thanks,
  - Tom A.
---------------------------------------------
;-) I'd rather be ____  Thomas R. Arneberg  
:-) singing in a |____|  http://www.mcs.com/~toma
:-) Barbershop  _|   _| toma@cray.com
:-) Quartet!   (_)  (_) Chippewa Falls, Wisc.
---------------------------------------------



0
Comment
Question by:toma010397
1 Comment
 
LVL 1

Accepted Solution

by:
simap earned 100 total points
ID: 1538399
If restarting with extensions off doesn't help, you have a hardware problem. It might not be you mac's serial port but it could be your modem. Try unpluging your modem and running AOL. If AOL can init the port but doesnt see the modem you have a bad modem or a bad modem connection. Try replacing the modem's cable. If that doesn't work you might have to borrow someone's modem so see if it is in fact your modem that is causing the problem. If all else fails you will have to get your computer serviced. It is very uncommon that a serial port on a mac does not outlive a modem.
        SIMAP
0

Featured Post

3 Use Cases for Connected Systems

Our Dev teams are like yours. They’re continually cranking out code for new features/bugs fixes, testing, deploying, testing some more, responding to production monitoring events and more. It’s complex. So, we thought you’d like to see what’s working for us.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Apple's line of laptop computers has made significant strides forward in the last few years. The biggest change being the switch to Intel processors in 2005. One thing about Apple hardware, especially that from a few years ago, is the tendency for i…
Set up iPhone and iPad email signatures to always send in high-quality HTML with this step-by step guide.
This Micro Tutorial demonstrates using Microsoft Excel pivot tables, how to reverse engineer competitors' marketing strategies through backlinks.
Sending a Secure fax is easy with eFax Corporate (http://www.enterprise.efax.com). First, just open a new email message. In the To field, type your recipient's fax number @efaxsend.com. You can even send a secure international fax — just include t…

813 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now