I never touch the base clock. I use the core multiplier when overlocking the CPU. With my ram I'm using the XMP memory profile and then changing the memory ratio to 4200MHz. The default ram timings for my kit is 19-19-19-39. But even at default my system will not make it past POST (debug code 61 "NVRAM Initialization") unless I lower the ram frequency way below 4133 MHz which is the rated XMP for my memory modules. As I said before, I actually just purchased the Trident Z Royal RGB 4600MHz which will be here in a week, but for what? For nothing! What a waste considering I won't even be able to get that high because of my crappy i9! I guess I should just swap my i9 on Amazon and hope for a better one. It sucks when you buy ram and can't even achieve the rated speeds because of the Fu*king memory controller sucks! My i7 8700K is way better than this i9's memory controller.
Using the same board 8700k-9900k ?
Going for an even higher frequency is really sort of crazy no offense
I definitely understand that, what I don't understand is why you just brought up the VRM.
To actually determine that the IMC is at fault you'd need to test a couple boards from each chipset.
Yes I meant Z370. And testing different motherboards is very unreasonable because the IMC is built in the CPU not on the motherboard. I already told you my current setup worked completely fine with the i7 8700K, I was able to run my ram @ 4133MHz with it's XMP profile, and I sure as hell didn't need to touch the VCCIO and System Agent voltages to get my system to successfully post.
So are you trying any suggestions or just complaining?
That's rude. Jeez don't act like you wouldn't be in the same boat if you just bought a new $500 CPU and this was happening too you. Yes, I'm doing suggestions. I'm adjusting the System Agent and VCCIO voltages yet my system still isn't making it past the POST. I'm already in the yellow range with the voltages. Buying CPU's and GPU's are annoying. I'm always so unlucky!!! And now I'm going to have to buy new thermal paste when I swap for a new i9. Darn Thermal Grizzly Kryonaut is expensive. And it would be very unfortunate if the new i9 will also have the same issue.
Last edited by superhead91; 03-15-2019 at 01:37 PM.
That's the thing. It's IMC is bad considering I have to touch those voltages where as my i7 did fine on auto. The i9 is just an i7 8700K with 2 extra cores and 4 extra threads.
You should never have those on auto when overclocking RAM. Auto typically runs them way too hot, often 1.3v or more for 3200MHz RAM when 1.15v or so is usually stable. At your frequency VCCIO and VCCSA could be much higher. You should set them manually to the lowest stable voltage as one of the last steps in your memory overclocking process.
As for your main issue, you changed the CPU. A 9900K isn't "just an 8700K with 2 extra cores", it's a totally new chip with other incremental changes and enhancements over 8xxx chips in addition to other fundamental differences like more cache. You're going to have to start over as far as RAM overclocking is concerned, at the frequencies you're trying to achieve. That isn't unexpected. If you had a DDR4 3200 kit or something I doubt you'd have any issues, but with 4000+ it often takes some doing to get it stable and happy. I'll also point out that with that if you had already been using a 9900K and you switched to a different 9900K, you also may have had to redo your RAM overclock. Every piece of silicon is different and your margins are pretty slim with the overclock you're trying to achieve. Also, as others have said you're using a Z370 board (albeit a really good one) with a CPU that's happiest with Z390. A lot of the high end Z390 boards have optimizations to allow for higher RAM frequencies than Z370 which in theory means you'll have an easier time getting 4000+ DDR4 stable and possibly have a higher ceiling.
Last edited by tostitobandito; 03-13-2019 at 09:42 PM.