Some people don't seem to realize that ZEC mining puts very different demands on your card than ETH mining.  ETH mining is 100% memory reads, while ZEC mining, depending on the kernel code, can have more writes than reads.  When you modify BIOS straps for ETH mining, you might be using read-write turnaround timing that will cause write errors.  Then when someone gets errors or GPU hanging on ZEC mining, they blame the software when their BIOS mod is the issue.
A BIOS guru (not me) can create custom straps that tune each relevant timing value to their safe limits.
The following product brief shows a few of the parameters for DDR5 RAM.  For full details see a datasheet.
https://www.micron.com/~/media/documents/products/data-sheet/dram/gddr5/4gb_gddr5_sgram_brief.pdf