First post, by waterbeesje
- Rank
- Oldbie
In my collection I have a nice 486, based on the Aquarius MB-4DUV motherboard. Three times VLB, UMC chipset and support for 4x fp/Edo ram. It has no I/o onboard.
The main purpose of the system is to fool around with DOS6.22 and Windows 3.1x.
Recently I took the system apart and had some major upgrades.
iDX2-66 went to Cyrix 5x86@100 (bios reports 487SX 66MHz, but works totally fine)
8MB ram went to 32MB
170MB Conner went to 420MB WD
Trident 9400 vl to cirrus 5424 vl
Went far and back through jumper central.
Performance went skyrocket.
The Generic but ok performing VLB I/o controller does what is supposed to do.
2x IDE, fdd, game, parallel, 2x serial.
Then I got a Promise DC4030VL controller in, added 4MB cache ram (30p 80ns) and it flies!
The downside: I lost parallel and serial connections (and game, but I'll put in a sound card with one). For parallel port I have a spare ISA one, but for serial I don't. So bye bye mouse for now...
I could:
- switch back to the generic I/o controller
- get some serial adapter
- build one, along with an extra rom socket (the Sergey fdd/serial/rom card without fdd parts)
Or would the generic I/o do?
Jumper settings are on the silk screen.
By jumper I can choose IRQ and I/o addresses for the IDE part. If I choose not to jumper them, would this leave the IDE out? Or would it still conflict with the promise controller?
Stuck at 10MHz...