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RAM Clock problem

Appleophile
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So I have 2 sticks of 4gb corsair vengeance LP 2133mhz ram but whenever i enable xmp profile in the bios to enable 2133mhz it fails to boot any suggestions on what to do or what could be wrong here's full specs

CPU
i7 4790K 
Motherboard
MSI Z97 G55 SLI
RAM
Corsair Vengeance LP 2133MHz 2x4GB
GPU
EVGA ACX SC GTX 780 6GB
Case
Fractal Design Define R4
Storage
Crucial 120GB SSD, 1TB Toshiba HDD
PSU
EVGA 850G2
Operating System
Windows 8.1 Pro
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Overclocking RAM affects CPU overclock stability. I'd assume that your system isn't stable at 2133mhz. 

 

What you want to do is put the ram at 1600mhz, then overclock the cpu as far as you can (and still achieve stability), and then overclock the ram as high as you can (while still maintaining stability). 

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Is the CPU overclocked in any way?

 

You can always try and dial in the speed, voltage and timings manually. Somtimes the XMP is a bit buggy.

Nova doctrina terribilis sit perdere

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If it fails to boot then your RAM is unable to run at the speed specified.

 

It's one of 2 things:

 

- At least one of the 2 modules is not able to run the speed specified and is therefore not what you bought

- Your CPU OC prevents it from running at the specified speed.

 

The latter is solved by manually lowering the speed to something like 1866

The former needs an RMA

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Overclocking RAM affects CPU overclock stability. I'd assume that your system isn't stable at 2133mhz. 

 

What you want to do is put the ram at 1600mhz, then overclock the cpu as far as you can (and still achieve stability), and then overclock the ram as high as you can (while still maintaining stability). 

 

 

Is the CPU overclocked in any way?

 

You can always try and dial in the speed, voltage and timings manually. Somtimes the XMP is a bit buggy.

Don't xmp have a preset on voltage and speeds?Could they be set wrong?

Beware of him that is slow to anger; for when it is long coming, it is the stronger when it comes, and the longer kept. Abused patience turns to fury.
 
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Don't xmp have a preset on voltage and speeds?Could they be set wrong?

Theoretically XMP should dial in all the correct values for speed, voltage and timings.

But in my experience they sometimes dial it in wrong. It depend a lot on the motherboard and the RAM,

This is why i prefere to dial in the values manually.

Nova doctrina terribilis sit perdere

Audio format guides: Vinyl records | Cassette tapes

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