R30 IRQ error

[wujstefan]

Hello,

Working on another vintage project.
I've got a nice R30 in stock - however, when trying to boot it I get two errors:

ERROR
Warning: IRQ not configured - PCI
Bus: 00 Device: 13 Function:00
ERROR
Warning: IRQ not configured - PCI
Bus: 00 Device: 0A Function:00

Tried to set "auto-detect" on PCI devices in BIOS, but without success. After setting such thing I've got a stuck, black screen.

EDIT:
Disabling 2nd PCI device in BIOS causes helps with one error.

[theterminator93]

What devices are installed in the CSC and mPCI slots?

[wujstefan]

Can't remember now, need to disassemble the unit to find out. Will get back tomorrow.

I think it's CMOS battery is dead as well.

[wujstefan]

I've got a modem daughter card in CDC slot.
mPCI is empty.

[theterminator93]

Hm... Does removing the card cause the error to go away?

[wujstefan]

Nope.
However, when in bios - config - pci I made a change to two devices.
Disabling 4th PCI IRQ removed the first issue.
Changing anything in 2nd PCI IRQ makes the system to lag-blank screen directly after displaying the thinkpad-start logo.

[theterminator93]

With a dead CMOS battery... clearing CMOS is probably perpetual. With a new CMOS battery, is there any effect?

Hmm. I'm at my wit's end, I'll have to admit.

[wujstefan]

I've reinstalled the CMOS battery. No effect. The system still hangs.
I'm losing hope really...

EDIT:
And directly after writing it, I've came to the solution!
Swapped the HDD. Set all the PCI IRQs at "11". And right now I'm at win98 installer window!