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General discussionDescent to Undermountain - Not enough memory (DOS Box)(5 posts)(5 posts)
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Posted March 05, 2022
Hey there,

had fun with the unpopular Descent to Undermountain! I completed the first quest, but when I try to go back through the portal to get to the dungeon hub, the game crashes and says:

Not enough memory to load DTU.EGG polygon

I then tried to start the game with entering "loadfix dtugame" with DOSBox (also with loadfix -32 or -1) but it always crashes with the same error when I try to enter the portal to the hub.

mem says I got:
568 kb free conventional memory
63 kb free upper memory in 1 blocks
14912 kb free extended and expanded memory

The game says when starting up:
Available memory
Conventional: 538 kb
Extended: 14,912 kb
Virtual: 0 kb

PCGamingWiki says this game needs 16MB System memory RAM (https://www.pcgamingwiki.com/wiki/Descent_to_Undermountain)

Any ideas what I could try? Using DOSBox Staging on a Macbook which runs fine with other games. I know Descent to Undermountain is a complete broken mess, but I'd really like to get it running.

Thanks in advance.

EDIT: Sorry, forgot to mark this as a Question :(


EDIT2: Solved After a long search as a Mac noob for the DOS Box conf file on my M1 MacBook (tip: use spotlight and search for "~/Library/Preferences"), I edited the memsize from 16 to 16000. Now it works!
Post edited March 05, 2022 by autumnskies
Posted March 05, 2022
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autumnskies: <snip>
I imagine you're running up against actual DOS programming & not a DOSBox error.

So... how to manage memory in DOS: https://www.atarimagazines.com/compute/issue137/S8_How_to_manage_memory.php

Also of course read the DOSBox documents in case there's some memory expanding options: https://www.dosbox.com/DOSBoxManual.html
Posted March 05, 2022
Thanks for your quick reply! I just solved the issue in the minute you wrote you comment :)

since I couldn't change the memory with loadfix to 16MB, I did it with the dosbox.conf file. Not sure if this is the proper way and if other games will run with that, but it seems to work with this game for the moment. It's a riddle to me how I could play the game without that, and backtracking in the game caused the error, but as mentioned Descent to Undermountain is a mess...
Posted March 05, 2022
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autumnskies: since I couldn't change the memory with loadfix to 16MB, I did it with the dosbox.conf file. Not sure if this is the proper way and if other games will run with that, but it seems to work with this game for the moment.
That's how I usually do it:

memsize=31

in your dosbox.conf. I actually always use 31MB as default and only change it to any lower if a game complains or shows signs of not knowing how to handle that much memory space.
Post edited March 05, 2022 by WinterSnowfall
Posted March 08, 2022
avatar
autumnskies: since I couldn't change the memory with loadfix to 16MB, I did it with the dosbox.conf file. Not sure if this is the proper way and if other games will run with that, but it seems to work with this game for the moment.
avatar
WinterSnowfall: That's how I usually do it:

memsize=31

in your dosbox.conf. I actually always use 31MB as default and only change it to any lower if a game complains or shows signs of not knowing how to handle that much memory space.
Yep, it also works with memsize = 31 without any flaws. Thank you!
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General discussionDescent to Undermountain - Not enough memory (DOS Box)(5 posts)(5 posts)
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