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- Path: sparky!uunet!pipex!bnr.co.uk!uknet!mcsun!sun4nl!dutrun!donau!dutecaj.et.tudelft.nl!linstee
- From: linstee@dutecaj.et.tudelft.nl (Erik van Linstee)
- Newsgroups: comp.sys.ibm.pc.misc
- Subject: Re: Disappearing UMB's, get this.
- Message-ID: <1993Jan05.105121.3321@donau.et.tudelft.nl>
- Date: 5 Jan 93 10:51:21 GMT
- References: <1993Jan01.181352.6500@donau.et.tudelft.nl> <1993Jan4.173117.14082@dcatlas.dot.gov>
- Sender: news@donau.et.tudelft.nl (UseNet News System)
- Organization: Delft University of Technology, Dept. of Electrical Engineering
- Lines: 54
- Nntp-Posting-Host: dutecaj.et.tudelft.nl
-
- joet@dcatlas.dot.gov (Joe Trott) writes:
-
- >linstee@dutecaj.et.tudelft.nl (Erik van Linstee) writes:
-
-
- >>The funniest thing happened to me. Yesterday, when I booted my
- >>dos partition, I noticed I had no UMB's. I was rather surprised,
- >>since I hadn't changed anything since I last used dos.
- >>And behold, the himem.sys and emm386.exe settings were still
- >>ok, yet, from the dos prompt (4dos or command.com) I could not
- >>see any UMB's, emm386 repports 0 bytes available/free UMB
- >>but a correct UMB start segment (C800), SI repports no UMB server
- >>present, BUT the drivers in DEVICEHIGH's were loaded high and
- >>functioning!!!
-
- >Are you sure they were up high?
-
- Yes. mem/c doesn't show them, the memory isn't missing from
- the base 640k, but yet they work, so they are loaded.
-
- >>How's that for a mysterie. Has my processor maybe gone off DOS
- >>after having been running OS/2 for a while now :-) ?
- >>I reinstalled DOS, reformatted c: disected config.sys, and what
- >>else. No indication of failure. OS/2 runs fine, checkit confirms
- >>the system board to be ok, yet, NO UMB's.
- >>My suspicion is rather arroused though, by the fact that SI,
- >>repports different memory sizes in the various info screens.
- >>It finds 638 to be useable by DOS, yet 640 to be available.
-
- >Sounds like some of your BIOS settings may have been changed, such as the ones
- >for shadow RAM. How much RAM is in your system?
-
- 17Mb, and the BIOS settings are ok.
- I pulled out the original dos disks yesterday, and that confirmed the
- fact that it must be a virus. I have no idea where it came from and
- a virus scan did not reveal a thing.
- It's pretty persistent though. I tried putting back my original setup
- piece by piece and when I finally got to 4dos, it broke again.
- Doing a sys c: from the original disks doesn't solve it, only
- reformatting did. It seems to infect more than just the command
- shell.
-
-
- >-JTT
-
- >Good .sig, by the way. Crazy, isn't it? We invent a God, and then pretend
- >he/she/it invented us.
- >I guess there are those who never outgrow the need for a "Father" figure,
- >who will surely make everything all right somehow, someday, somewhere...
-
- Over the rainbow... Yes, my thoughts exactly, except so many intelligent
- people seem to disagree. One thing I will never understand I guess.
-
- Erik
-