Trying to get my Ram to run at 2133

[Mandrake4565]

I have a 4770k on a Maximus vi Hero mobo, with a set of G.Skill 2133 7-10-7 2x2g 1.65v sticks. I've been able to get them to run as high as 2k at 7-9-6 with 1.7v, but cannot get them to run at 2133 at stock timings. I've tried with the Cpu at stock clock speeds, with the Ram at 1.7 V, I added voltage to the analog and digital I/O voltage offset so they were at 1.25 V and also added voltage to the Cpu Cache to 1.2. I've raised and lowered the Cache speed and still it will not even post. I just get error code 55 every time. I have run the sticks at 2133 on my AMD setup without a problem. Am I missing something.

 

[peanutbudder]

Have you tried just loading the X.M.P profile?

I don't mess with ram settings to much but my vengeance 1866 will do 2133 @ 10-11-10-35 1.62v. I leave mine at stock speeds for 24/7 use because I have 4 dimms and don't want to stress the imc to much. I didn't notice any difference in performance from 1866 compared to 2133.

 

[Mandrake4565]

Yes, peanutbutter I tried loading the 2133 XMP profile and still no post, just error code 55.

 

[Lvcoyote]

Just set the memory frequency to 2133 and go back and set all the timings and voltages to auto again, let the bios detect everything.

 

[cullam3n]

I second that, just set it to 2133 and auto everything, it should boot.

For what it's worth, I had an issue similar with my p67 board. Turned out I had some bent pins on the CPU, so I re-straightened them and now it works.

 

[Mandrake4565]

I second that, just set it to 2133 and auto everything, it should boot.

For what it's worth, I had an issue similar with my p67 board. Turned out I had some bent pins on the CPU, so I re-straightened them and now it works.

Triad that as well, I don't think it's a problem with the Intel board or ram because they run fine at 2k with the timings tightened on the Maximus Hero and they also have run fine at 2133 on my AMD board.

 

[Woomack]

Not all older kits are working fine at stock timings on haswell but XMP should at least boot. Memory voltage has to be set manually.
Try one of these settings:
2133:
- 7-10-7-28 1N 1.65V
- 8-10-8-28 1N 1.65V
- 7-11-7-28 1N 1.65V
2400:
- 7-11-7-28 1N 1.75V
- 8-11-8-28 1N 1.75V

Sometimes you can make it work at CL8 much easier and performance isn't much lower.

My RipjawsX 2133 9-10-9 1.50V ( so the same as 7-10-7 1.65V ) have some issues to run at higher clocks on haswell while on IB it was running up to 3000. However on XMP profile it's working fine @2133 or when I change to 2133 7-10-7 1.65V then it's working fine too.

 

[Mandrake4565]

Ok Woomack I'll give it a try are their any other voltages that I would need to touch or just leave things on Auto.

 

[Woomack]

can try higher vccsa or something but for these clocks you don't need much

 

[Mandrake4565]

Thanks Woomack, I set it to 2133 not XMP 2133, Manually set the timings to 8 10 8 28 1.65, all other voltage are on Auto. It went to windows which is a good sign, considering it wouldn't post at 7-10-7 28. I'm working on getting the timings tighter, it will not post at 7-10-8-28 1.7 v, so far I'm at 8-9-8-28 I'll report back as I test it. Any Ideas why it will not post at cl 7?

 

[Woomack]

I'm not sure. I have 2 PSC kits that were working at CL6/7 2000+ on IB/SB but on haswell only one of them is running at CL7 and none want to even boot at CL6 2000+. On IB-E one of these kits is running @ 8-10-7 but CL7 is also not working. Can try higher voltage or something but 1.75V+ is more for ~2400 clock, not 2133. Maybe there are other settings that you are missing but hard to say what.

 

[Mandrake4565]

Thank Woomack I appreciate it, so far they'll run 2133 8-10-7-25 cr1 @ 1.7. I haven't stressed tested them on anything other then Super Pi 32m to see if it's truly stable there, nor have I tried 2400. I'm going to start at 8-10-8-28 1.65 when I get a chance to test for real stability. It will be just trial and error from here to see what they'll do, it just makes me feel like I am indeed missing something with the voltages because I can't run them at the stock timings for 2133.