[SOLVED] Bit of a condundrum

[pallid junco]

I'm having a bit of a problem, and I can't pinpoint want the problem could be.

Specs:
Intel i5-12600K
ASUS Prime Z790-A
XPG LANCER RGB 7200MHz
Acer Predator GM7000
Acer Predator BiFrost A770
EVGA GT 850W

I keep getting errors that Windows points to indicate memory:
IRQL_NOT_LESS_OR_EQUAL
0xc0000428
0xc000021a

Now it could be other things, but when running at a speed above 6600MHz, like XMP, it has problems, being fully stable at 6600MHz and semi-stable at 6800MHz, 7000 and 7200 both fail. It even locks up, not giving me a blue screen, but it becomes completely unresponsive (no fans spin up though) and frozen. Even in the UEFI.

I honestly can't tell what what the issue could be. It could be the CPU and just a bad memory controller because its not rated for anything above 5600MHz iirc, could be the motherboard, as 7000 and 7200 was given support via a BIOS update, or it could be some bad sticks.

Running at 6800MHz I get no errors in Memtest86, running at 7000+ I get errors in tests 4, 5, and 6. All of this was done in 4 passes per stick.

Any advice on how to narrow down what could be the issue?

[fast sigil]

Yeah that sounds completely normal and expected for excessively fast memory... the sticks are rated for it, but it's an OC of the memory controller as well. Your motherboard isn't great either - the same CPU might manage 7200 fine in something like an apex.

If it works at defaults rather than XMP or a manual OC, then there is no issue as such - the hardware is all functional

But the 'issue' in terms of not hitting a given memory speed is likely to be a combination of cpu and/or motherboard. I don't think there's really a way to test that without a known faster setup.

[pallid junco]

That's what I thought, first gen DDR5 CPU and a motherboard with "extended" speed compatibility. Just wanted a second pair of eyes, thanks.