Problem using an IDE CF adapter and IDE CD-ROM in a 4000?

[dangermouse]

Hi folks

Got a little problem I can't fathom.

I'm attempting to install OS 4.1 onto my 4000  and, due to space restrictions in this particular 4000 case, I can only install internally an LG IDE DVD-ROM drive I have. The hard drive I'm installing to is a 4GB Transcend CF card using an IDE -> CF adapter. This CF card is not the issue..I've used identical cards in 1200s, 600s and 4000s without any trouble up to this point.

Now, when I install using SFS I keep getting blockid errors at random points in the install process. If I do the same thing using just the CF adapter on IDE and a SCSI CD-ROM connected to the CSPPC it's all peachy - problem here is I can't keep the SCSI CD-ROM in the 4000..it's too long and hits the power supply.

I'd like to have the 4000 all usable and screwed together with an internal CD-ROM hence the need to get the IDE CD-ROM working reliably.

I've tried the CD-ROM as master and slave (and the adapter in the complementary position) and it makes no difference. Tried with jumpers removed on both the CD-ROM and adapter and that results in me losing the CD-ROM altogether rendering installation impossible.

Is this likely being caused by the CF card adapter does anyone know? If so is there any way around it other than being forced to install 4.1 with a SCSI drive and leave the IDE CD-ROM permanently disconnected?

Any tips appreciated

Thanks

[dangermouse]

Ah yes I'd forgot about those. Good point you make and will fix my problem but they're just so expensive and impossible to find in NZ.

[dangermouse]

CF card is a 4GB Transcend and has been working fine for a year or so in a 1200. Have tried a different card (16GB Transcend) and the result is the same.

Max transfer is also correct to the best of my knowledge (0x1FE00) - installing with a SCSI CD works fine without errors. I'm almost certain it's got something to do with 2 devices being on the IDE bus but just don't know why that would cause a problem.

[dangermouse]

Mmm...only 'older' drive I have is still a DVD-RW and it doesn't seem to be too happy either. Might have to try to source an old bog standard CD-ROM. Thanks Mech.