Welcome 😀
Is this the board?
If so it's a Compaq motherboard based on the Via VP2 chipset (which has a VT82C595 northbrdige). The chipset definitely isn't the problem, this is a good 1997-era allround chipset. For K6-2 support there are two main considerations:
1) Voltage: the K6-2 wants 2.2V. It will survive 2.5V, anything over that risks toasting the CPU.
2) BIOS support. Not always necessary, some boards will fail to identify a CPU but run fine. Others do run but with features disabled. Some refuse to run at all.
Now, just the model number indicates that the board comes from some or other Deskpro 4000, probably a 4000 5233MMX. Unfortunately there were many of those and most Compaq documentation is based on exact model number. Even there, OEMs rarely if ever give out-of-original-spec upgrade help, so your best bet is some or other community site.
That said, the board definitely does 2.8V as it's rated for Pentium MMX. That's not a voltage you want to run a K6-2 at for long periods, but you can do a quick test to see what the board does with it. Just be sure to verify Vcore asap if it does run.
Assuming it does run and delivers an acceptable voltage to the CPU, then there's the speed setting. A better pic might help there. Assuming you're stuck with max 66MHz FSB, the setting to aim for is 2x66MHz, as later (CXT) K6-2 >=400 interpret the 2x as 6x, so your CPU will run at 6x66MHz=400MHz. If you can set higher FSB (Via VP2 definitely supports 75MHz and usually works at 83MHz too - but that does not mean Compaq has implemented it!) you can do 6x75MH=450MHz.
Maybe a good high-res pic of the board, particularly of any jumpers or dipswitches, might help.