First post, by jheronimus
Just got a Backpack 167550 (32x CD-ROM) and connected it via LPT to my Compaq Presario 433. Installed 4.0 drivers from this site.
It works, but there are a couple of issues:
1) games like The Dig and Full Throttle stutter or hang at boot.
2) it uses a lot of conventional memory, so Betrayal at Krondor won't start.
I used backpack's tools to determine ECP/EPP capabilities of my port. Looks like it's neither, so it's probably a pretty slow LPT port. But before I get a dedicated LPT card, I'd like to know that slow speed is really the issue here. So, couple of questions:
1) How do I measure the data transfer rate from CD-ROM under DOS?
2) how do I free up more conventional RAM? Looks like I've used up all I could google, so any tips would be welcome. I've attached screenshots for MEM /C /P, AUTOEXEC.BAT and CONFIG.SYS.
The specs are:
12 MB RAM
Cirrus Logic CL-GD5420 512K
Creative Vibra 16 CT2940