Question I9900K + MAXIMUS XI EXTREME + GSKILL F4000C17 Issue, Need Assistance :(
Question I9900K + MAXIMUS XI EXTREME + GSKILL F4000C17 Issue, Need Assistance :(
Hello everyone,
as the title indicates, I’m facing an issue with my new build. Below I detail my concerns and the full configuration.
Processor: I9-9900K
Motherboard: Asus Maximus XI Extreme
RAM: G.Skill F4-4000C17Q-32GTZR Trident Z RGB
VGA: Titan Xp Collectors Edition Jedi
SSD: Samsung 970 Evo Plus 1Tb
HDD: Caviar Black 1Tb
Power Supply: Seasonic Prime 1000 Titanium
Full custom loop EK: 2x Rad PE coolstream
At first startup everything worked fine. I adjusted the XMP settings except for a brief shutdown during driver installation and system restart. The message appeared: "Memory Ok, please enter the BIOS and check RAM setting." After entering the BIOS, I noticed the motherboard had set values for VCCIO and System Agent Voltage at 1.40, which is quite high.
I attempted to run a 5GHz OC with standard parameters, but found no stability issues even when adjusting VCCIO and System Agent Voltage.
During testing with cinebanch r15, the PC would crash consistently. I ran memtest and observed no errors without XMP. With XMP enabled, there were 3 errors (uncompleted).
I’m curious if this is related to the IMC processor or RAM configuration.
PS: BIOS has been updated to the latest version.
Kindly assist me.
Thank you very much.
It's uncertain how quickly it will proceed. Consider reducing the speed of the memory or boosting the voltage.
Thank you for your message. I'm trying to configure everything automatically with a core ratio of 5GHz, but I'm not getting stability from 1.30 to 1.34. I believe the manufacturer has an incorrect IMC setting; I know VCCIO and System Agent Voltage need higher voltage when using fast RAM speeds. I don't know what to do next—I plan to try another 9900k and will return with my update.
5Ghz across all cores is quite demanding for a 9900k, possibly requiring more than 1.34 volts. I'm using 1.416 through my 7700k to reach 5Ghz, which isn't an ideal CPU sample but it's stable at the moment.
I've seen others achieve better results, but you need to consider the conditions. Cold starts and air-conditioned rooms are common factors. Many posts are just for bragging and rarely discuss real-world usage. Passing Cinebench once is doable, but everyday overclocking presents a different challenge.
I recommend exploring overclocking forums more thoroughly.
Have you attempted to isolate one component at a time? Avoiding heavy CPU overclocking while trying to improve memory performance.
Test one adjustment at a time. Increase RAM speed to 4000 to optimize the memory controller. Check if XMP 4000 remains stable without CPU tweaks. Note that 1.4v for VCCIO and VCCSA is higher than recommended. AUTO often applies overvoltage. Set mine to 1.05V and 1.15V instead, which is much lower than the 1.3V XMP setting for 3200 CL14. Ran memtest86 to confirm stability.
Thank you for your message.
Update: I'm using memtest86 pro V8.2. After the first two passes, I encountered 60 errors when XMP was enabled. I increased the RAM voltage to 1.39 but it didn't help. When using GSKILL 3000CL15, everything worked fine without errors and with XMP enabled. Keeping my old memory, I'm trying to send my RAM for RMA and Procio.
Help me please.
A few things going on here. There isn't technically anything wrong with your CPU or RAM, it's almost certain. Have you read up on OCing and modern platforms before attempting. The RAM is very likely fine, it's either some tweaks to your memory relating settings in UEFI need adjusting, or you "lost" the silicon lottery with your CPU's IMC. RAM is tested and verified to run at it's speed, but that speed isn't guaranteed on your particular system. Officially, the 9900k is only supported up to 2933. The CPU and motherboard themselves play a big role. You are also trying to run CPU with your older RAM kit without any AVX offset, which can be difficult to reach 5Ghz. Some folks will use 2, 3, or even 4. Have you tried an AVX offset? Some folks need considerably more voltage for a 0 offset. You CPU cooling system plays a big role as well in stability and being able to get to this speed. There is no guarantee whatsover that the 9900k can run at 5Ghz. I've seen reviewer's needing closer to 1.4v in some cases, which runs extremely hot. Again, it's the "silicon lottery". Some folks can get there no problem, some can't no matter what settings are used. It's not a defective part, so wouldn't truly qualify for an RMA at an honest business. Your settings look similar to mine, but I'm running LLC7, and don't use Speedstep, C1E, ect. and other power saving settings.
Please let me know your thoughts on the initial two passes using memtest v8.2 pro with a 60 error rate on a 4000mhz RAM. Now I'm testing with a 5ghz RAM and it's stable. The settings are: XMP profile 1, core ratio 50, AVX 0, cache 4.3, core voltage 1.31, LLC6, and I ran Prime95 for an hour followed by Cinebench. If I switch AVX from 1 to 4, the system crashes during Cinebench. At the moment, I'm in a very hot room (26°/27°), which is quite warm in Italy. I'm planning to upgrade my RAM back to 4000mhz.
So AVX 0 is functioning properly, but higher offsets seem to lead to problems? That appears to be the opposite of what we expect, since increasing the offset generally reduces AVX instruction performance. Great build, by the way.
What RAM model are you using? Have you experimented with manual tuning of DRAM, VCCIO, and VCCSA? I’d want to confirm CPU OC or RAM before making final changes. Essentially, ensure 5GHz remains consistent on the CPU. Conduct additional benchmarks, run games, Realbench, etc., and use various tools to check stability.