Is the DDR3 OC stuck at 1866MHz?
Is the DDR3 OC stuck at 1866MHz?
I own these components
Mainboard: Z68XP-UD3R (supports up to 2133)
CPU: E3-1225v2
GPU: GTX 1660S Tuf
Memory: Adata XPG 4gb 2400 1.65V x2
RAM is locked at 1866MHZ. I can't change it to 2133 or 2400. What should I do to overclock it to 2133?
Your CPU is restricted to a maximum of 1600MHz, which is fortunate you have 1866MHz available. If there isn't an XMP profile, you might attempt manual adjustments, though I question the quality of the outcomes, possibly even more disappointing. Increasing the frequency further will likely cause other settings to degrade, resulting in a slower overall performance. You see, when you modify RAM, you must also adjust the IMC (Internal Memory Controller) within the CPU, which is often the main obstacle.
I attempted to use XMP but it didn't function properly. It seems the issue might be related to the CPU. Are there any 1155 CPUs that support a higher bus?
I adjust the ratio from 16 to 18.66 and increase the ram voltage to 1.65. Then I modify the ratio to 21.33, which causes it to reset and revert to the default BIOS.
This indicates that 1866MHz could be the IMC hard limit. I'm not familiar with that CPU, but if Bios has settings for Soc voltage that are intended for IMC, be cautious and make minor adjustments of up to 0.001v at most; otherwise it might cause overheating.
you purchased a fake ram, but it's only 1866mhz, not 2400. it's a scam.