XMP - Not working

skeletonw00t

skeletonw00t

skeletonw00t

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Joined
8 Jan 2007
Posts
221
Hi,

I recently purchased:

Gigabyte Gaming 7 mobo
Intel 6600k i5
16GB Corsair Vengeance 3000mhz ram

I am trying to enable XMP in the bios but it just crashes when I do.

Do I need to do anything special to make my memory run at the speed it's meant to?

Tom
 
When you say it crashes when you set it, is it crashing in the BIOS or crashing when trying to boot. If it's crashing in BIOS, that's not normal at all. If it's crashing on boot, it might need a touch more voltage to make it stable.
 
XMP is an overclocking profile for the RAM. It saves us having to set manual timings for any RAM speed above the industry standard.

For DDR4, 2133MHz is the industry standard. Anything above that is an overclock. A kit that is sold for a given speed, e.g. 3000MHz, is tested to be rated for that speed. It could be that your 6600K has a weaker memory controller hence why 3000MHz isn't stable. Does the RAM work without XMP enabled?
 
The trouble is you're always going to be limited by your CPU's memory controller no matter what motherboard and memory manufacturers sell to you. The 6600K 'officially' supports up to 2133mhz DDR4 so anything above that is by no means guaranteed no matter how good your motherboard/memory is - 3000mhz memory is nearly a 50% overclock of the memory controller.

Broadwell-E actually supports 2400mhz DDR4 officially but even that is low compared to what motherboard and memory manufacturers market.
 
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If you havn't already done so update your bios, your cpu will do that speed with ease, if after updating and you still get bsod set XMP and run memtest.
 
I dont know about your ram but mine has several XMP profiles one of them has tighter timings, that one is unstable for me, the one with looser timings works fine. Maybe yours has multiple profiles too.
 
Thanks,

Is there any real-world material benefit of increasing the RAM Mhz anyway?

It won't load on the XMP profile 1 (only one available) - but I guess I can just try manually adjusting the multiplier & voltage if needed...
 
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