This model shows instability when run with default configurations.
This model shows instability when run with default configurations.
Hello everyone, I just bought a 14900K and am using it with a Gigabyte AORUS Elite AX motherboard. My setup includes 6800 MHz RAM from GSKill and a 4090. I’m experiencing problems where Cinebench r23 crashes during multicore runs (screenshot attached). It works fine on single core. I also have no stability issues elsewhere. I can run a 3Dmark timespy Extreme with XMP 6800 enabled without any hiccups. Playing Halo Infinite at 6GHz all cores with XMP seems smooth, except for Cinebench where it never stabilizes on stock settings. I saw a similar issue in another post, but the error logs differ. I notice we share this same motherboard with someone else. The Cinebench error is:
```
Exception { ExceptionNumber = 0xC0000005
ExceptionText = "ACCESS_VIOLATION"
Address = 0x00007FFBE514B3FD
Thread = 0x00000000000027F0
Last_Error = 0x00000000 }
```
I’ve shared this on Reddit and hope you can offer some insights. I’m new to overclocking and stability, so I’m unsure how to get things stable. Did I lose the silicon chance? Or are Gigabyte boards unreliable for the 14th generation? One thing worries me is whether updating the BIOS would help, though I’m worried newer updates might bring more problems. Is that a valid concern? Should I just go with the default BIOS update? Any advice would be greatly appreciated!
(Additional notes: My Passmark tests sometimes fail too. In XTU I increased the voltage offset to +0.05 and Cinebench finished. After lowering it back, it worked again. This adds more confusion.)
Consider adjusting XMP settings and checking performance within a 6000 MT range. If stability improves, it may not be solely related to RAM issues. Otherwise, disabling XMP entirely could work better. Expect many tweaks in the BIOS to fine-tune the setup.
When purchasing RAM above standard specifications, most users should consider it. Cinnebench's failure with XMP off indicates a serious concern. Test one stick first; if it still doesn't work, try the other, and if it fails again, it suggests a faulty CPU, both memory modules, or motherboard issues. This situation can lead to many confusing troubleshooting steps.
I regret not sharing the solution earlier. The issue stemmed from the gigabyte board drawing unlimited power and having a low LLC setting by default. During heavy multi-threaded operation, V-Droop happened, leading to instability. Two fixes were considered: 1) increase LLC (not ideal for regular use), which risks voltage spikes and CPU wear; 2) restrict power consumption—ideal for daily tasks. Intel’s 14900K is built to run at 253W, so the board bypasses this limit by default. For everyday use, I set the power cap to 253W in XTU. This should assist others.
This brings to mind the testing DerBauer conducted after the 14900K release, highlighting potential issues if chips aren't built according to Intel whitepapers and strict power limits. Mainboard makers optimizing power settings often create more complications than benefits, typically aimed at high-end overclocking rather than everyday use. Edit: He mentioned it in one of his videos, though I'm not sure if it was the 13900K or 14900K. The impact would likely be similar.