BitWrangler wrote on 2023-08-01, 20:34:
oh2ftu wrote on 2023-08-01, 18:00:
Something hankypanky going on with the usb-headers/usbpwr -jumpers.
Might involve your PSU too, you need 2A 5V standby to enable those features, to get USB power in standby, former basic ATX spec was only 0.5A/500mA
I will have to look into that. My testbench PSU is not most optimal, as it has a 24pin (not 20+4pin) atx-connector and only one floppy.
The onboard USB-headers are provided via an Alcor AU9254B01-UES usb-hub. After installing windows, it started stating that one usb port (port1, on the headers) is drawing too much current. Oddly enough, nothing is connected there. The other port, on the same header, works (port1). Ports3-4 do not work at all.
Fiddling around with the USBPWR-jumper was a temporary fix. I assume some jumper-setting will make it draw current from the usb-header to the wrong place.
Too bad there wasn't a schematic on elektrotanya. Board rev is 1.02. Again, time is on a premium so will see when I'll be around to this again 😀
I need to choose a GPU as well. Possible candidates; FX5500 (from my sons K6-2/500), Voodoo3 3000, Radeon 9500 pro, TNT2. Those are the actual cards available. Not counting Rage128, Vanta M64 or similar.
Leaning towards a Win98SE build anyway. I already have a Tualatin-S XP build.