I recapped an SE/30 board yesteray but keep getting disk errors for the internal hard drive.

I got the board dead, with SimaSimac, so impossibe to test before.

Replaced all capacitors. The board posted but couldn't find the internal hard drive.

However if I boot with a floppy disk, the hard drive didn't appear to the desktop either but Apple HD SC Setup 7.3.5 could see the drive.

When I try to Initialise the drive with Appe HD SC Setup, I get the following:

- Format: OK

- Verify: OK

- Mounting Disk then takes a long time and gives "The Disk could not be initialized: Unable to Mount Volume"

When I try the TEST in Apple HD SC Setup, I get "Problems writing data to drive"

When I try FWB 2.06 Formatter: I get about the same results. I also gives a fault when trying to mount the volume.

What I have excluded ( = taken from a working SE/30 logic board and done the same procedure )

- The HDD: Formats fine on my other board - not faulty

- SCSI cable: is good

- Ram: swapped the ram modules from other board - no change

- Rom: swapped - no change

I'm doubting between the SCSI chip and one of the Bourns filters.

I hoe someone can point me to the solution.