Encountered 9900k stability problems with Intel Turbo Boost when it was active.
Encountered 9900k stability problems with Intel Turbo Boost when it was active.
Hi hope someone is able to help, so I have a i9 9900k CPU with an MSI MPG Z390M Gaming Edge AC motherboard and 40gb of DDR4-2400 installed, 2x 16gb + 1x 8gb sticks, now I keep getting memory errors when testing the ram with memtest86 (the bootable USB version) I have narrowed it down to the following two options, if I disabled "Intel turbo boost" and "enhance turbo" the system works without any memory errors and boots into freash installation of win10 without giving an "uncorrectable error" blue screen when window is starting up.
I have tried leaving the turbo boost and enhance turbo enabled and trying single memory sticks and even different memory still no success, I also tried the CPU in a Asus ROG STRIX z370-g and getting the same errors so I know it's the CPU, but why does it work perfectly when turbo is switched off, I tired setting the ring ratio to stock 3.60Ghz bit still getting the errors when turbo is enabled.
I'm thinking maybe the auto voltage is not keeping up with the Intel turbo boost overclocking or something, it has no issues with the enhanced Intel speedstep technology left enabled as long as I turn off the turbo any advice
The MPG Z390M Gaming Edge AC’s voltage regulator cooling isn’t adequate for the Core i9-9900K at its standard speed... The regulator runs too cold under heavy loads on this processor.
When testing with an 8700K, the VRM also overheats, and it’s likely to be even worse with a 9900K.
Currently, users have installed the 9900K on boards that weren’t powerful enough for Enhanced Turbo or running beyond stock power levels.
Also, avoid mixing RAM—this is risky. Just install and see how it performs.
I tested each memory stick separately on my Asus Rog z370 with an i7 8400. All passed memtest86, and they also passed on the i9 system without turbo enabled.
'Enhanced turbo' refers to a specific motherboard design. It doesn't relate to standard CPUs and usually means the board supplies excessive voltage to the CPU in order to reach very high clock speeds. If your CPU or VRM can't manage this voltage at the temperatures you're experiencing, your memory controller may be failing, causing memory errors. Reduce all overclocks, overvolts, timing tweaks, and refer to the guide here: https://forums.
Things have definitely evolved, but previously, the most affordable board capable of managing the 9900K OC or adjusted power limits was the Gigabyte Z390 Gaming X. It requires some airflow around the VRM area, but it can handle it—simply opt for an air cooler or an all-in-one unit with a built-in fan. For more powerful VRMs, this isn’t essential. It’s hard to suggest anything without understanding your available choices.