The computer turns on, then shuts off and restarts during the boot process.
The computer turns on, then shuts off and restarts during the boot process.
I understand there are several threads discussing a similar issue, and I want to ensure I receive the correct solution for this unique situation. I'm just starting out with overclocking and have been exploring it for about a month. I've reviewed numerous guides, forums, and watched many tutorials on YouTube (enough to feel confident about beginning to work with my system).
My setup includes an i5-6600k, MSI Z170a krait gaming motherboard, 16GB of DDR4 2400Mhz RAM, and a GTX 960 ssc. Recently, I began overclocking by tweaking the bclk, vcore, RAM voltage, and fclk along with the ring ratio. (I don’t have access to the core multivariable in my UEFI).
I adjusted the bclk from 100 to 130, set fclk to 1000MHz, vcore to 1.325V, and RAM to 1.2V, which resulted in approximately 4.4GHz (CPU), ~4.7GHz (ring ratio), and ~2400MHz for RAM. I didn’t modify the RAM timings at all, which I’ve heard can lead to similar issues when booting with new settings.
When I exit the UEFI to apply these changes, my computer would reboot several times—shutting off and restarting multiple times—before finally booting normally and showing stable performance. There were no core or motherboard temperature concerns.
This might be due to incorrect RAM timings, but if not, what other factors could be involved? Also, if anyone is familiar with the UEFI settings for my motherboard, it would be greatly appreciated if they could guide me on adjusting the multiplier so I don’t have to perform complex calculations to achieve the desired frequency changes. Thank you in advance for your help.
It seems the initial voltage isn't sufficient to start the process. After loading the window, the LLC provides the CPU with adequate power to function correctly. My idea is to raise the voltage noticeably to verify, then reduce it back. If the problem persists, consider adjusting RAM timings or lowering the multiplier slightly to test if RAM is the cause. Overclocked RAM can also be affected by voltage changes. 1.2 Volts is quite low and really limits performance.
Themastererr :
Sounds like not enough initial voltage to get POST going. Once windows is loaded the LLC gives the CPU enough juice to operate properly. That's my theory anyway. Increase voltage a decent amount to confirm then drop back down.
If you think it is the RAM just increase the timings to something a lot slower or lower multiplier one point to confirm that RAM is indeed the issue. Overclocked RAM like voltage as well. 1.2 Volts is ridiculous you're starving the poor things.
So should I change the LLC settings or do you mean increase the Vcore value? and what voltage do you think is appropriate for 2400Mhz ram? I also noticed on many charts that detail the settings various overclockers use to achieve their overclock, a value for the ring ratio that seems to have some sort of relationship with the cpu freq. Often times the ring ratio has a freq. sitting about 500MHz above the cpu freq. Is their a mathematical way to determine what your ring ratio should be based on the cpu freq.?