hargle
Veteran Member
I'd think that all RTCs use standard CMOS ports, 70, and 71h.
Is the drive information correct when the name is only partially displayed?
Because IBM had no RTC card for the PC, designers of cards containing an RTC chip had nothing to follow. So the card designers themselves chose where the ports on the RTC chip mapped to in I/O address space.Does anyone know what ports the MM58167 (i have MM58167AN) RTC chip uses?
jeeze. something that old and crusty might be at fault itself. It could easily be a signaling/timing issue.
Please try:
1) 80 pin cable
2) a drive made this century
If the same results, then we can start looking for other things to blame.
It could easily be a signaling/timing issue.
Yes, i make some additional tests which shown more stability with the 80 pin cable while using the multi I/O rtc card.So things worked a bit better when using 80 pin cable?
Do you need the exact model on TH99 (hard to find) or would be a picture of my multi I/O card also okay?Can you find the multi I/O card from Total Hardware 99?
Especially floppy controllers? I must have one additional floppy controller, but I have to find it firstWhat other cards do you have?
Sorry if this is a dumb question, but what drive size could the at bios handle?
I have a Promise EIDEmax but that only allows me 8 of 40GB. ( Overkill, I know :D )
Do you want me to just ship with RC1, or should I reprogram them all again and ship later/next week?
Sorry if this is a dumb question, but what drive size could the at bios handle?
I tried again to find the my card on TH99, but I still can't find exactly the same card, so I will post the picture now.Picture of your multi I/O card should be okay since i can use it to find the card info from TH99.
I meant what other cards do you have installed in addition to the XTIDE, VGA and multi I/O card.
Yes... i think nearly all combinations. I tested it with the xt turbo clone and the original IBM board - exactly the same!Have you tried the multi I/O or XTIDE card in differents ISA slots?
I tried without IRQ (no jumper set) and with jumper at different IRQs (include setting in XTIDE bios). The problems are still the same. Still I have on both boards the situation, that booting from XTIDE is not possibe if I only have the VGA adapter and the XTIDE card pluged in (without any floppy controller). Did your xt board not show this phenomenon?Try to use XTIDE with IRQ enabled if you have available IRQ channel (IRQ5 should be free if you don't have any other hard disk controller or sound card).