If I were a betting man, and looking at my card.

I'd say Jumpers 2,3,4 switch between 16 and 8 bit mode, and J1 at the top might change the display mode between interlaced and non-interlaced for high resolutions.

Okay, like I said I get 4 quick beeps on power on ( long, short, short, short beeps ).
Here is the error code from PC Diagnostic reader.

Going by this list:

http://www.elstonsystems.com/dl/manual_postcard_32.pdf

You are getting 61 as your error code (previous code: 60). This means, and I quote, depending on your BIOS:

• AMI (61)Display memory verification over. About to go for DMA #1 base register test.
• AST (61)RAM test.
• Award (61)Try to turn on level 2 cache. Set the boot up speed according to setup setting.
  Last chance for chipset initialization. Last chance for power management
  initialization. Show the system configuration table.
• Compaq (61)Enter protected mode.
• Chips & Tech (61)Video

I would guess that you either have AMI or Award, since those are the most common BIOS's. If Award, it might be some problem with level 2 cache, it seems. If AMI it might still be a video problem, I guess? However the "Display memory verification over" hints at the VGA memory being ok...?

Also this should be your card: https://stason.org/TULARC/pc/graphics-cards/S … A-MACH-512.html

Okay, I am going to label this video card “Not working / questionable ”.
I tried the correct settings but I get a conflict with my Gigabyte 486 motherboard.
All my other ISA video cards work fine with this motherboard.
Maybe it is just not compatible with this motherboard.
I will try in other motherboards.

Thanks for your help.

Maybe retry with the both expansion RAM chips pulled from the card.
Sometimes bad RAM or bad socket contacts occur.

I’ll give it a try.

Update:
No that did not help.
I think this video card just is not compatible with this motherboard.
I may work, but right now it is having resource conflict with the current VLB motherboard.