OLD dog, needing some help to play again. Asrock Z270 Gaming K6 and Gskill F4-3000C

[JNav89GT]

Got the Asrock Z270 gaming K6, latest bios, 7700k @4.8ghz. System stable at default XMP of PC3000 specs 15-15-15 etc... Can't seem to figure out the magic sauce of getting any ram oc. Previous system was an Asrock Gaming K4 with 6700k and GSKILL PC2400 DDR4 and I got that up to 3200+ settings on that board.

I have tried increasing VCCIO/VCCSA to 1.15-1.25 ea. No help. Tried increasing ram voltage up to 1.45. No help. Tried messing with disabling XMP and doing auto with manual timings. No help. Tried lossening cas, trp etc... to 16-16-16-42 up to 18-18-18-48 timings. No help.

System just seems stuck and I'm sure it's some setting I'm overlooking or don't know about/understand.

Now I don't NEED to oc this memory. System runs fine and I mainly play CSGO on this computer. BUT, it DOES bug me and my OCD that I can't get any appreciable oc out of the ram and I know it's ME and not the ram(well pretty sure anyway given loosening timings didn't give me anything).

Any thoughts????

PS haven't been on the board in probably 10+ years. Be easy on me

[xpower]

I think Gskill F4-3000c already pushed to the limit by factory. and it will refuse to go any higher. as your previous PC2400 has more overclock headroom supported by IMC.