Problem :
I have ddr3 Ram 2400mhz (F3-2400c11d-16gab) but I can’t boot up with preset xmp set to 2400mhz but I can boot up when I set frequency to 2200mhz.
Motherboard: P8Z77-V DELUXE
CPU: I7 3770
Please help.
Thank you for the advices.
Solution :
Your motherboard does not seem to support RAM at 2400 Mhz.
The P8Z77-V DELUXE manual, page 2-6, says this:
Due to lntel 2nd generation processors‘ behavior, DDR3 2200 and above, 2000/ 1800 MHz memory module will run at DDR3 2133/1866/1600 MHz frequency as default.
This means that the actual limitation is caused by your CPU, not by
the motherboard itself.
In addition, the very dependable Crucial website gives only 1600 Mhz
RAM upgrades for the
P8Z77-V DELUXE.
You may download and run the
Crucial System Scanner
that will scan your motherboard and do a precise analysis of its
capabilities, for a second opinion.
The results given by the scanner may be counted
upon to be very accurate.
If the results are the same, then 2200 Mhz is actually pretty good.