Over clocking failed

[dkp1988]

Hi I have the rampage v extreme and the vengeance lpx 2666 MHz RAM, I've changed my dram frequency to 2666 and the timings to 16-18-18-35 but when I turn off my computer and turn it back it says over clocking failed but I'm not over clocking in just changing the speed to what the RAM should be

[Dr_Pleeper]

try XMP instead

[dkp1988]

Xmp does the same thing

[Imakuni]

4 minutes ago, dkp1988 said:

Hi I have the rampage v extreme and the vengeance lpx 2666 MHz RAM, I've changed my dram frequency to 2666 and the timings to 16-18-18-35 but when I turn off my computer and turn it back it says over clocking failed but I'm not over clocking in just changing the speed to what the RAM should be

There's no such thing as 2666 RAM (DDR4, I assume). What you have is just regular 2133mhz RAM, that the manufacturer OCed and reached the conclusion that it could be OCed to those speeds and keep stability. In other words, you are trying to OC RAM, which is also dependant on the CPU and possibly mobo.

 

But anyway, do as the above guy said and try OCing via XMP. It most likely contains a higher voltage, and if it does, that's why your OC is not holding.

[dkp1988]

I tried xmp it freezes my PC making me reset until I change it back in the BIOS and it's advertised as 2666 but I'm not sure what you mean?

[Imakuni]

7 minutes ago, dkp1988 said:

I tried xmp it freezes my PC making me reset until I change it back in the BIOS and it's advertised as 2666 but I'm not sure what you mean?

What are the voltages in the XMP? Is it 1.2v or did they bump it up to 1.35v?

[dkp1988]

I think it's 1.35 not sure have to check it again after work but it also enables turbo mode not sure what that is

[danrey84]

Have u changed the baseclock of the cpu at all?? If its DDR4 ram you have its standard working range is 2133Mhz but you can get different ram frequencies which once u engage XMP will set it too that RAM's speed.

[dkp1988]

No I have not messed with base clock at all only when I put it in xmp it changes my base clock but then I get a frozen PC forced to restart until I change it back to auto, but when I do this my ram speeds read @ 1068 mhz

[Imakuni]

24 minutes ago, dkp1988 said:

No I have not messed with base clock at all only when I put it in xmp it changes my base clock but then I get a frozen PC forced to restart until I change it back to auto, but when I do this my ram speeds read @ 1068 mhz

Aha. That's why. By increasing the Bclk, you are OCing the CPU as well, thus making it unstable.

 

[dkp1988]

I haven't messed with base clock only when I'm in xmp but xmp doesn't work for me so I'm currently not using it

[Imakuni]

4 minutes ago, dkp1988 said:

I haven't messed with base clock only when I'm in xmp but xmp doesn't work for me so I'm currently not using it

Then enable XMP, decrease the CPU multiplier so that the frequency ends up being at stock and see if it works.

[dkp1988]

But when I enable xmp it enables turbo mode not sure if this is making it unstable as well

[Imakuni]

1 minute ago, dkp1988 said:

But when I enable xmp it enables turbo mode not sure if this is making it unstable as well

That's what I just said. Enable XMp and adjust your multiplier so that the CPU runs at the correct speed.

[dkp1988]

The default multiplier even xmp is off is 29 so put it to that?

[Imakuni]

8 minutes ago, dkp1988 said:

The default multiplier even xmp is off is 29 so put it to that?

No. The default multi assumes you have 100 as the Bclk, so your CPU would run at 2900mhz. Since you increased your Bclk, you have to lower the multi on the CPU so that "multi" X "the XMP bclk" = 2900 or lower. Also remember to do the same for turbo boost multiplier.

[dkp1988]

So what exactly do I put them at? I'm confused and also a noob