The 98549A board is 1024x768, 6 planes (4 color, 2 overlay, at least under HP VUE -- perhaps there's a way it can make use of all 6 planes for color, but I don't know how). Otherwise, that matches what I've observed here.
ok bear. On Jan 21, 2016, at 8:51 AM, <martin.heppe...@dlr.de> <martin.heppe...@dlr.de> wrote: > Yesterday I checked the 9000/217 98204B combo with my oscilloscope and I can > confirm the 25kHz horz. frequency (1V down to 0.3V pulses every 40 us). > I cannot measure the pixel clock as my oscilloscope was too cheap (I had to > compromise) and thus cannot sample at higher MHz rates. I only see that it > goes from 1V to approx. 2.2V. > Just for my understanding: if I do the math: 512 pixels x 400 rows = 204'800 > pixels at 50 Hz I end up with 10.2 MHz and at 60 Hz = 12.3 MHz. > There is more "room" required for the retrace time, probably another 10% or > so? > So I understand that the monitor must be capable of ~25 kHz and 10...14 MHz > and that I better try before buy. > > It is difficult to find specs for these HP 9000 video boards. > In case it is useful for someone ... my list below is still missing DIO-bus > type (1 or 2) and signal frequencies. > > 98204B Video Board medium resolution (512x390) monochrome > for 35721 monitor, DIO-1 > 98542A Monochrome Video Board medium resolution (512x400) monochrome > 98543A Color Video Board medium resolution (512x400) 16 colors > 98544B Monochrome Video Board high resolution (1024x768) monochrome > 98545A Color Video Board high resolution (1024x768) 16 colors > 98546A/B Monochrome Video Board medium resolution (512x390) monochrome > alpha/graphics, for 216/217 display compatibility > (a pair of cards, compatible with 2136 and 217 displays (512x390, > 25x80)) > 98547A Color Video Board high resolution (1024x768) 64 colors > 98548A Monochrome Video Board high resolution (1280x1024) high > performance > 98549A Color Video Board high resolution (1280x1024) high > performance > 98550A Color Video Board high resolution (1280x1024) high > performance > 98700A Graphics Display Station high resolution (1024x768) 256 colors > 98710A Graphics Accelerator optional for 98700A > 98720A High Performance Board high resolution (1280x1024) nur HP-UX, > requires 98724AA interface and 98784A monitor > 98730A High Performance Board high resolution (1280x1024) nur HP-UX > 98722 memory upgrade optional for 98720A > > Martin > > -- until further notice