Good morning!
I have a problem with an HP Workstation b2600 with a PowerPC processor.
I cannot "get / display" the image on the monitor. When I connect the serial cable to the RS232 (COM1) port and use the console, I can see everything the computer is doing.
Originally, the computer had a graphics card with PCI connectors (photo below). I put 2 different / other PCI cards (S3 Virge / DX and STB HORIZON 64 1MB FPM PCI FALCON 64). All 3 cards have the same effect - no image on the monitor.
I also present a video of the computer boot process, which shows the stages of its startup on the display on the front panel. VIDEO: https://vimeo.com/645685310
I also suppose that the hard disk (SCSI 80pin) is broken and / or the system (probably HP-UX version 10) is also not working.
I also post a video that is a record of the system boot. This is a record of what is happening on the console when connected to the b2600 using RS232 (COM1): https://vimeo.com/645702214
However, the most important thing is to "get / output" the image on the monitor.
Where to find a solution?