PC fails to start when RAM is configured at 2400MHz
PC fails to start when RAM is configured at 2400MHz
Alright, so im still researching but figured id ask to see if anyone knows. So I went out and got ddr 3 2400mhz ram. When I set it to run at 2400 the pc wont boot, i turn it off then on and it says overclocking failed.
Now I have an fx 8320 at 4.71ghz at 1.4v and a crosshair V formula Z mobo.
I have 4 ram slots populated, and I know that max the cpu supports 1866mhz. But even when I set it to 1866mhz it still doesnt boot. It will only boot at 1600mhz.
my cpu/nb frequency is at 2600mhz, I read that it should be 3 times the ram so 3x1200=3600mhz? Is that true? I did not try that yet.
my HT it set to 2600mhz as well.
Cpu/nb voltage is at 1.25 i tried 1.35 but still nothing.
NB voltage is at auto at 1.11v
I set the ram timings manually and the voltage for the ram is set to 1.65v which is what they come at.
Im thinking i could try upping the ram voltage, and the cpu/nb at the same time? What do you guys recommend, its been a while since i messed around with these settings.
I loaded the default optimized bios settings and chose ddr3 2400mhz, it booted properly and runs at the right speed. Should I now start over with the overclock from scratch, given that I just got new RAM sticks? Or could I try loading my existing overclock profile and see if that helps? It might be tricky to figure out why it doesn’t boot at 2400mhz, but maybe a fresh start would be simpler.
alright, so ima just updating this. I loaded my 4.7ghz overclock and after having the default settings i noticed the cpu/nb was set auto to 1.4v where I had it 1.25v when I was running ddr3 1600mhz ram. I upped the cpu/nb voltage to 1.4v and my overclock booted just fine into windows with ram set to 2400mhz. I also set the timings manually and upped the nb frequency to 2800mhz, and it works good.
tried 3000mhz on the nb frequency but it did not post, im guessing I would need more voltage but im good with 2800mhz.
Also does it make sense for the nb to be 2800mhz where my HT is 2600mhz? From what i remember i think one of them limits the other right?