F3 2400C10Q16GZH on X79-UD3 rebooting

[Rozano]

Hi, I just got my Ripjaws Z F3 2400C10Q 16GZH today, but after installing them and adjusting bios settings , the system just keeps on rebooting over and over again (never comes to the windows 8 logo).

Mobo: Gigabyte X79-UD3
bios: latest F12l
cpu: intel i7-3820
power: 750W
OS: Windows 8 64bit
gpu: 2x ati radeon hd 6900 series (crossfire)

XMP on profile 1
mem voltage @ 1.65V

What am I doing wrong or is there something not compatible with the memory.

greetings

thx

Rozano

[Tradesman]

Might want to try them at 2133, both the 3960X and 3970X can have trouble hitting 2400, some 3930Ks can (haven't seen many), but haven't seen any 3820s hit 2400

[Rozano]

thanks for replying, I will try this.

though I find it strange that this important information isn't mentioned on the website or the pc-store or on the package itself.

[Rozano]

So after some tests I found out that 1 of the 4 sticks is giving the rebooting problem.
When i put in that specific one, the pc won't start.

when I run with the other 3, I can set the frequency up to 1866mhz.
When I set them to 2133mhz the system stops and starts again in Bios mode.
I also tried it with Vtt voltage @ 1.25v like it would do in XMP profile 1 mode, but then the systems tries to reboot over and over without getting in to bios and I have to do a "clr cmos".

[Tradesman]

Might post up your BIOS settings, especially the DRAM timings (base and advanced/secondary) as well as your system voltages

[Rozano]

I took some pics from the bios screens. hope this helps.

[Tradesman]

Let's start by taking the CPUVTT up to 1.17 and try

[Rozano]

No that didn't work.
I raised the cpuvtt to 1.17v and win 8 was starting up normaly (mem@1866mhz). But when I then raised the memory multiplier to 2133mhz the pc fails again just after leaving bios.

[Tradesman]

Try 1.2 on CPUVTT, and raise your OC a notch or two

[Rozano]

Hi,

First, I would really like to thank you for helping me.
second, I went back to the computerstore and let them check out the mem kit.
They came to the conclusion that the memory kit was broken, I did not work.
So I got my money back (no other memory in store), so I could reorder a new set.

I just order the RipjawsZ F3-19200CL11Q-16GBZHD
I hope that this kit will work without any problems.

greets,

Rozano

[Tradesman]

Glad to hear it worked out, let us know how the new set goes when it comes in

[Rozano]

Hi,

today I received the RipjawsZ F3-19200CL11Q-16GBZHD memory set.
And this time it works.

only a little thing:

first I did a bios-reset to start fresh (previous memory ran at higher voltages)
Then I put in the new memory sticks but the system didn't boot.
When I put in only 1 stick, the system booted into bios.
Changed the settings (xmp profile 1 & voltages) and left bios , placed the other 3 sticks, and then system starts without a problem.

And as you said @2400 the system is not stable with the i7-3820, after a while pc freezes.
So I have it running @ 2133mhz now.

[Tradesman]

Sounds like a good setup for the 3820, some of them even have problems at 2133, so you have a good one