Gigabyte Z68X-UD3P-B3 system turning on and off and on, etc

[Shashman]

My system I've just assembled after finally getting all the parts together is turning on, then off, then on, then off, etc when I power it up...

Gigabyte Z68X-UD3P-B3
i5 2550K
4x2GB Corsair XMS3 RAM
2x4GB Geil Black Dragon RAM
Corsair HX620 PSU
60GB OCZ Vertex 2E SSD
60GB OCZ Agility 3
560Ti 448 core

As you may have noticed, I have 2 sets of RAM. I went and bought new and better RAM thinking this was the issue

The 4 case fans spin fine, as does the CPU fan. The status LEDs on the motherboard appear to be indicating correct functioning.

If I power up the system with just one module of RAM installed, it runs fine.

I've reset the CMOS.

I'm thinking it's a faulty motherboard. Obviously hoping that's not the case, so what do you guys reckon?

 

[bremen1874]

When it turns on how far does it get before it turns off?

 

[Shashman]

About 3 seconds

 

[stulid]

Things to try,

Using a single stick of RAM (that works fine) update the BIOS.

Download and run memtest.

With a working stick of RAM installed can you load a XMP profile and then fit the other RAM from the kit?

 

[Shashman]

Haven't tried updating the BIOS yet, will try that next

XMP profile?

 

[stulid]

XMP profile?

Its basically a set of info contained within the RAM that you can load within the memory section of the BIOS and sets the speed/timings/voltage etc as the RAM manufacturer specifies.

 

[Shashman]

So basically check the RAM settings on the RAM website and make sure those are the settings that are being loaded?

 

[stulid]

Basically, yes.

But if the RAM does have a XMP profile, then its a simple one click operation.

 

[Shashman]

So this 'XMP' is a BIOS-specific or RAM specific setting? Sorry, bit confused as I've never had RAM that had 'profiles' before

 

[stulid]

You will find it within the BIOS (if the RAM has it), you select it and the board takes care of the rest.