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- Newsgroups: comp.dcom.modems
- Path: sparky!uunet!caen!sdd.hp.com!apollo.hp.com!netnews
- From: goykhman_a@apollo.hp.com (Alex Goykhman)
- Subject: Re: Summary of prices... (PPI, in particular)
- Sender: usenet@apollo.hp.com (Usenet News)
- Message-ID: <Bu9xKr.2zu@apollo.hp.com>
- Date: Tue, 8 Sep 1992 19:17:15 GMT
- Nntp-Posting-Host: dzoo.ch.apollo.hp.com
- Organization: Hewlett-Packard Company, Chelmsford, MA
- Lines: 60
-
- In article <mdpn17c.jimb47@netcom.com> jimb47@netcom.com (Jim Budler) writes:
- >Alex Goykhman (goykhman_a@apollo.hp.com) wrote:
- >: >I can vouch for the Practical Peripherals... mine's worked flawlessly since
- >: >early June in modem mode.
- >:
- >: Mine hangs all the time during ZMODEM downloads (from Channel 1, Cambridge,MA)
- >: both with Telix 3.15 and Robocomm 4.2. Tt appears to work with WINQVT, but
- >: I can't figure out why...
- >:
- >: Stay away from PM14400FXSA.
- >
- >My PM14400FXSA works flawlessly using zmodem, compuserveB, and kermit
- >with every computer I've connected with.
- >
- >You can't download from one site and you advise the world to stay away
- >from this modem?
-
- I had had the same problem with other sites too, but I figured there must
- have been others in this newsgroup connecting to Channel 1, and I wanted
- to hear from them.
- >
- >You even say it works with one of the three programs you tried, and you
- >still blame the modem?
-
- That does not mean much. Besides, I said I'd been having problems with
- a PM14400FXSA, but I did blame the modem.
- >
- >I think there is something wrong with *your* logic, not the modem's!
-
- I think *your* logic is a binary one, otherwise you'd realize that,
- beside the modem, there are other hardware and software components
- involved in a file transfer. The one that PP's tech support employs
- is not much better: I was suggested to either replace the modem,
- or the serial card, and see if that fixed the problem.
-
- In my case, PM14400FXSA would work with WINQVT under Win3.1, but
- hang with Telix or Robocomm under MSDOS as well in a Win3.1 DOS
- session, WITH THE SAME SETTINGS.
-
- Another word, my modem would work well with a native Windows application,
- but not with MSDOS ones. I am no Win/DOS expert but, having spent
- most of my career developing operating systems, I suspected one of the
- differences between the two may have been the way 386's virtual memory
- was handled. On that theory, I replaced the MSDOS memory extender that
- I had used (386MAX.?) with another one (HIMEM.SYS). As a result, I
- lost ~40K of memory, but the problem disappeared.
-
- Now, before somebody jumps in claiming that "386MAX works flawlessly
- with brand X" therefore my logic must be suspect, I'd like to state
- that I do not consider the workaround that I found to be a conclusive
- proof that 386MAX (the one that comes bundled with MS C/C++ 7.0) is
- broken. There are more factors than one involved in replacing a
- MSDOS memory extender (i.e. timing).
-
- Having said that, I wonder what other people's experiences are with
- various memory extenders, and 386MAX in particular.
- --
- -----------------------------------------------------------------------------------
- Disclaimer: all opinions are mine.
- -----------------------------------------------------------------------------------
-