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Bizzare ram problem

  
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SuperMappy

External


Since: Feb 03, 2005
Posts: 13



(Msg. 1) Posted: Mon Mar 17, 2008 12:59 am
Post subject: Bizzare ram problem
Archived from groups: alt>games>mame (more info?)
I've been experiencing a strange problem with a faster computer I got for
my Mappy Mame cab. No matter how much ram it has in it, DosMame and
ArcadeOS only shows 14 Megs of free physical memory and 141 Megs of free
virtual memory. This doesnt cause any problems with smaller games like
Mappy, Galaga, Mr Do., etc... Larger games like Guwange, 19xx, and Dangon
Feveron load very slow and have significant slowdown.

I've tried from 512 Megs to 128 Megs of ram with the same results.
It's a 1Ghz compaq computer and I'm not using the onboard video.

short of another computer, any one have any possible ideas what might be
wrong?

--
Bustin' Naughty Folks since 1983

See my custom built upright and cocktail cabinets at:
http://home.columbus.rr.com/supermappy/

Come to chat in #tombstones on preacher.foreverchat.net:6660-6667,7000
or http://www.tombstones.org.uk/?page=chatroom for javachat

MAME: Forever Young!

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tikbalang

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Since: Feb 29, 2008
Posts: 5



(Msg. 2) Posted: Mon Mar 17, 2008 5:48 am
Post subject: Re: Bizzare ram problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
On Mar 17, 8:59 am, SuperMappy <superma....DeleteThis@REMOVETHIS.columbus.rr.com>
wrote:
>   I've been experiencing a strange problem with a faster computer I got for
> my Mappy Mame cab. No matter how much ram it has in it, DosMame and
> ArcadeOS only shows 14 Megs of free physical memory and 141 Megs of free
> virtual memory. This doesnt cause any problems with smaller games like

i don't know how arcadeos and dosmame show free memory and how you
were able to setup virtual memory in dos. can you post your config.sys
and autoexec.bat?

here are some issues i can think of:

1. are you using himem.sys? from win9x? earlier versions will only
create 64mb of xms memory.

2. are you using smartdrive.exe? this caches the harddisk for faster
access.

3. do you have cwsdpmi.exe available in you path environment? mame
uses this to create virtual memory but there isn't much user
configurability in it.

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Andreas Kohlbach

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Since: Sep 26, 2006
Posts: 209



(Msg. 3) Posted: Mon Mar 17, 2008 7:28 pm
Post subject: Re: Bizzare ram problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
SuperMappy wrote on 16. March 2008:
>
> I've been experiencing a strange problem with a faster

.... than light?

> computer I got for
> my Mappy Mame cab. No matter how much ram it has in it, DosMame and
> ArcadeOS only shows 14 Megs of free physical memory and 141 Megs of free
> virtual memory. This doesnt cause any problems with smaller games like
> Mappy, Galaga, Mr Do., etc... Larger games like Guwange, 19xx, and Dangon
> Feveron load very slow and have significant slowdown.
>
> I've tried from 512 Megs to 128 Megs of ram with the same results.
> It's a 1Ghz compaq computer and I'm not using the onboard video.
>
> short of another computer, any one have any possible ideas what might be
> wrong?

Not sure, but can DOS access that much memory?
--
Andreas
Old school arcade classics at <http://www.ankman.de/mame/>
Tired of Windows malware but fear to try out Linux? Try a CD-live Linux which
does not touch your harddisk. Like <http://www.ubuntu.com/> or
<http://www.knoppix.com/>. Find out if Linux works for you without any risk.
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MCR

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Since: May 02, 2008
Posts: 4



(Msg. 4) Posted: Fri May 02, 2008 10:52 pm
Post subject: Re: Bizzare ram problem [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)
SuperMappy wrote:
> I've been experiencing a strange problem with a faster computer I got for
> my Mappy Mame cab. No matter how much ram it has in it, DosMame and
> ArcadeOS only shows 14 Megs of free physical memory and 141 Megs of free
> virtual memory. This doesnt cause any problems with smaller games like
> Mappy, Galaga, Mr Do., etc... Larger games like Guwange, 19xx, and Dangon
> Feveron load very slow and have significant slowdown.
>
> I've tried from 512 Megs to 128 Megs of ram with the same results.
> It's a 1Ghz compaq computer and I'm not using the onboard video.
>
> short of another computer, any one have any possible ideas what might be
> wrong?
>

I know this is an old thread, but an idea I just had is to install Win98
, and boot it in DOS mode. It should address all the memory and you can
use the official MAME binary too. Another thing to check is BIOS
settings, make sure you havent set some weird setting and that the BIOS
reports all the memory too.

Let us know if you solved it!

--
MCR
MAME - History In The Making
www.pleasuredome.org.uk
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