VOGONS

Search

Common searches

How to make a better ramdrive

Topic actions

First post, by PlaneVuki

Posted on 
User metadata
Rank Member
Rank
Member

Hello

I made ramdisk 11mb using dos5.

I tried 32mb edo ram. When I check ram using mem.exe it reports that:

31mb extended memory exist, 4.2mb available XMS memory (as normal ram). And my ramdisk is 10.8mb.

31mb - 10.8mb - 4.2mb available = 16mb seems to be missing. What hapened to remaining 16mb ram?

How can I make this to work using 16mb ram instead of 32mb. Why 16mb of ram is wasted?

(or, equivally, I want to be able to make bigger ramdisk and have more available ram using 32mb edo ram)

Here is current config.sys (booting from floppy ms-dos 5.0, pure boot, only below config.sys parameters used, no autoexec.bat):

DEVICE=A:\HIMEM.SYS
DEVICEHIGH=A:\RAMDRIVE.SYS 11000 /E
Last edited by PlaneVuki on 2024-05-02, 21:40. Edited 1 time in total.

Reply 2 of 3, by PlaneVuki

Posted on 
User metadata
Rank Member
Rank
Member
rasz_pl wrote on 2024-05-02, 13:14:
>486 > And it worked. >16mb seems to be missing […]
Show full quote

>486
> And it worked.
>16mb seems to be missing

source of your problems might be:
> edo ram.

What problem can be? Both amounts of ram (16mb stick, and, 16+16mb) are recognized in POST.

And like I wrote above, mem.exe recognizes 31mb extended memory.

Reply 3 of 3, by Grzyb

Posted on 
User metadata
Rank Oldbie
Rank
Oldbie

I wouldn't trust DOS 5.0 with such amounts of RAM.
Try 6.20 and/or 7.10.

Nie tylko, jak widzicie, w tym trudność, że nie zdołacie wejść na moją górę, lecz i w tym, że ja do was cały zejść nie mogę, gdyż schodząc, gubię po drodze to, co miałem donieść.

Go to top of page Go to top of page
Back to General Old Hardware
Close window
Close window