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how to increase conventioal memory



 
 
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  #1  
Old September 18th 04, 05:38 AM
RASHESH
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Default how to increase conventioal memory

hi

i am use windows 98 SE and i am run dos base soft. when i am start ms dos
soft. it running perfectly but after 15min or 20min later is give a error of
conventional memory. so how to increase a conve. mem.

my pc configuration is:
PII - 350 MHz
256 SD RAM
10 GB HDD(5GB FREE)

but i am install this system windows 2000 its running perfectly.
and my ms dos progr require memory is 16mb


  #2  
Old September 18th 04, 08:37 AM
Ingeborg
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"RASHESH" wrote in
:

hi

i am use windows 98 SE and i am run dos base soft. when i am start ms
dos soft. it running perfectly but after 15min or 20min later is give
a error of conventional memory. so how to increase a conve. mem.

my pc configuration is:
PII - 350 MHz
256 SD RAM
10 GB HDD(5GB FREE)

but i am install this system windows 2000 its running perfectly.
and my ms dos progr require memory is 16mb




www.computerhope.com/ac.htm#4

But conventional memory is only the memory below 1MB. You program uses
16MB, so it's not all conventional. Maybe you'll have to skip the 'NOEMS'

When it first runs fine, and stops after 15 minutes, while it runs
perfectly in W2000, then maybe you have a memory leak in emm386 of W98SE.

  #3  
Old September 18th 04, 09:23 AM
Jeff Richards
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http://support.microsoft.com/default.aspx?scid=kb;[LN];134399
How to Increase Conventional Memory for MS-DOS-Based Programs

How much conventional memory is available when you start, and how much is
available when the message appears?
--
Jeff Richards
MS MVP (Windows - Shell/User)
"RASHESH" wrote in message
...
hi

i am use windows 98 SE and i am run dos base soft. when i am start ms dos
soft. it running perfectly but after 15min or 20min later is give a error
of
conventional memory. so how to increase a conve. mem.

my pc configuration is:
PII - 350 MHz
256 SD RAM
10 GB HDD(5GB FREE)

but i am install this system windows 2000 its running perfectly.
and my ms dos progr require memory is 16mb




  #4  
Old September 19th 04, 03:50 AM
Lil' Dave
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Posts: n/a
Default

"Ingeborg" wrote in message
...
"RASHESH" wrote in
:

hi

i am use windows 98 SE and i am run dos base soft. when i am start ms
dos soft. it running perfectly but after 15min or 20min later is give
a error of conventional memory. so how to increase a conve. mem.

my pc configuration is:
PII - 350 MHz
256 SD RAM
10 GB HDD(5GB FREE)

but i am install this system windows 2000 its running perfectly.
and my ms dos progr require memory is 16mb




www.computerhope.com/ac.htm#4

But conventional memory is only the memory below 1MB. You program uses
16MB, so it's not all conventional. Maybe you'll have to skip the 'NOEMS'

When it first runs fine, and stops after 15 minutes, while it runs
perfectly in W2000, then maybe you have a memory leak in emm386 of W98SE.


Nope, conventional memory is the first addressable 640 KB of memory. That's
what the encrypted question was about.

EMM386 /NOEMS pages in high memory.

The remainder is extended memory that can be made into expanded memory
format/paged.


  #5  
Old September 19th 04, 12:08 PM
Ingeborg
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Default

"Lil' Dave" wrote in
:


Nope, conventional memory is the first addressable 640 KB of memory.
That's what the encrypted question was about.


In earlier days (around the middle ages) I used an compiler/optimizer
from Texas Instruments, which was developed for some 32 bit platform
(unix, I think), and ported to dos. By this history it was only able to
use conventional memory.
Unfortunately the optimizer could not optimize complicated code because
it then needed more than 640kB.

But then (sound of trumpets) dos 5 appeared. By using the option
'devicehigh=emm386.exe I=A000-EFFF' it was possible to create a dedicated
session with 960kB contiguous 'conventional' memory. Because the
videocard wasn't accessible anymore (it was mapped in A000-BFFF ram and
C000-C7FF rom), the line 'ctty com1' in autoexec.bat was necessary, which
redirected the console to com1, so you could use the computer with a
serial terminal.

Theoretically it is possible to use 1MB in this way, but then no bios
services (diskaccess) are available anymore (bios is mapped in F000-
FFFF), and some interrupts have to be redirected to usercode.

For this reason I feel free to claim the the whole 8086 addressable range
is conventional memory. :-)

BTW, this option was disappeared in dos 6.x. You could use 960kB, but it
was not contiguous anymore. Mem reported 640kB dos memory, and 320kB
UMB's. I haven't tried it in dos 7 anymore.

Ingeborg






 




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