P55 FTW Overclocking to get 2133Mhz in ram

Re:P55 FTW Overclocking to get 2133Mhz in ram (ipwnnoobsirl)

Fri, 06 Apr 2012 22:26:18 GMT

I wouldn't worry too much about the WEI score. It's not a very accurate tool, and it can fluxuate wildly. I've had it score my SSD at 5.9, and then running it immediately after, scored it at 7.8. Also, I have the same CPU, and mine gets a 7.6 rating. I think I last ran it while overclocked to 4.0Ghz. It's all Microsoft voodoo! Who knows how it does what it does?

Those voltages are looking a lot better. You might be able to back off the VTT a little more, but at least you're away from 1.40V. Is your ram finally running at 2133 MHz? If so, have you tried tightening up the timings to what the ram is rated at?

I'm glad its finally starting to come together!

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 06 Apr 2012 11:49:54 GMT

I actually had set it to those exact clocks today. As far as the PCI at 104, I had also put that back to 100. I had lowered all voltage down to 1.3, and vtt to 1.32500. Everything seems to be stable now, Do you see any changes that I may need to do? I am still only getting a 7.6 windows rating on cpu.

Thanks for all your help.

Re:P55 FTW Overclocking to get 2133Mhz in ram (ipwnnoobsirl)

Fri, 06 Apr 2012 11:36:02 GMT

Is there any reason why you're not using the 2:12 ratio? That would enable you to get your ram to 2133 Mhz without such a massive overclock on everything else. Then you wouldn't have to worry about those crazy voltages. 1.40V for your IMC is not a sweet spot... Its high! You should not need it that high, even for 16 GB of ram. You are potentially damaging your memory controller as we speak.

I just looked at it really quick, and if you use 2:12, you could set your bclk at 177 and be at 2133 for your ram. With a multiplier of 21, your processor would be at around 3.7GHz. Then if you don't want your processor to be OC'd that much, you can back off of your multiplier without affecting the ram.

I've asked it before, but why do you have PCI-E at 104? Do you have a reason, or is it just for kicks? It should be at 100 by default.

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Thu, 05 Apr 2012 17:09:43 GMT

Hi, thanks for the help. I did start over, and that is how I got it stable at 1866. I was pushing 3.99 on the overclock, and managed to get it to 2100, but I had to put the voltage to 1.4. Even with it being at 1866, a voltage of 1.4 was the stable sweet spot. If i had it lower, it would not even boot. It would keep getting stuck on the windows splash screen.

Since I have you here, what would be better. A higher bclk or multiplier? Meaning, should I set the bclk to 210 with a multiplier of 19, or 233 with a multiplier of 13? What would be the advantages or disadvantages of each?

Re:P55 FTW Overclocking to get 2133Mhz in ram (ipwnnoobsirl)

Thu, 05 Apr 2012 08:46:15 GMT

You didn't start from scratch on your overclock. You still have the wierd voltages that you may not even need (PCI-E, High VTT).

I have a feeling you did a quick overclock, and didn't actually follow the P55 overclocking guide. That guide is slow, and will get you to where you need to be. If you just throw crap in there and hope it will work, this is what happens.

Sleepee gave you advice on ram in a previous thread, and you were given advice here. Follow it first, and then see how high it can go. Take the time to do it right, or you might find that you're potentially damaging your processor.... and more specifically, your memory controller.

Slow and steady is the way to a stable overclock!

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Wed, 04 Apr 2012 10:19:18 GMT

I have successfully got it to 1866MHz stable with timings of 11 11 11 30 and a cr of 2t
When I try to go to 2133, it freezes at windows load.
For succesfull boot on 1866, here are my settings
BCLK 200
Multiplier 18
PCIE Frequency 104MHz
QPI Frequency 4.270 GT/s
Without V Droop
Bootup CPU Vcore 1.30000V
Eventual CPU Vcore 1.30000V
Dimm 1.65V
Bootup CPU VTT - 1.40V
Eventual CPU VTT - 1.40V

Mem Frequency - 1333 (2:10)
Mem Timings 11-11-11-30

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Wed, 04 Apr 2012 09:39:33 GMT

OK, I am still having problems with the overclock to get the memory to 2133MHz. Can someone please give me their settings that allowed them to get to 2133MHz with an i7870 and P55 FTW?

Re:P55 FTW Overclocking to get 2133Mhz in ram (ipwnnoobsirl)

Fri, 30 Mar 2012 21:41:33 GMT

Well, you'll have to mess with the Bclk to get your RAM frequency to where you want it... It just helps to remove as many variables as you can from this so that you can focus on getting it to boot. I think your VTT is really high, and at the top end of what your processor can handle. Keep it within 0.5V of your DIMM voltage (1.15 minimum. You might have to bump it to around 1.21 - 1.25, MAYBE into the 1.3 range.)

I would start from scratch with the new ram and use the guide. That way you can get it as stable as possible before trying to tweak the ram. Also, what command rate do you have your memory set at? My P55 FTW defaults to 1, but my memory is rated at 2. I noticed that your ram is also rated at 2. Make sure that it's set correctly.

Check the command rate first, with some loose timings (As was suggested earlier) and back off the VTT a little. See what happens.

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 30 Mar 2012 20:40:04 GMT

Sorry, forgot to put that in.

I am using an i7 870 cpu.

I had been using the same method of clocking with my sniper 8gb 1600, and it is under the p55 overclocking guide found here on the forums.

So what you are saying is that I need to basically just start with a base clk and then try to move my other settings up to match for greater stability?

That is a little tough, I am a novice when it comes to overclocking, and know just the basics. I can overclock the cpu, but when it comes to the ram, I am stuck......

Thanks for the help

Re:P55 FTW Overclocking to get 2133Mhz in ram (ipwnnoobsirl)

Fri, 30 Mar 2012 20:20:06 GMT

What processor are you using?

Side note:

A VTT of 1.4V seems super high. Even with 16 GB of ram, you shouldn't need that much.... Is there any reason why it is that high? Did you slowly test up to that number, or was it just a number you picked?

Also, why is your PCI-E set to 104? You shouldn't need to change that number at all.

I guess we don't know what you've done so far. If you had an overclock applied before you put this ram in, you need to start over completely. Go back to stock, and start over. Then you don't need to focus on so many variables. Get it OC'd to a BCLK that is stable with the RAM ratio you need, and loosen up your timings. Get it to boot. Then you can start to tighten up the timings, use different voltages, increase your multiplier... etc.

The Lynnfield OC guide is pretty spot on with overclocking these processors. If you haven't gone by that word for word, I'd recommend it.

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 30 Mar 2012 19:29:52 GMT

OK, I tried to use timings you recommended, but still the same thing. I did memtest, and all sticks are good. Now, what is the difference between XMP1 and XMP2?

Re:P55 FTW Overclocking to get 2133Mhz in ram (xanderf)

Fri, 30 Mar 2012 19:21:55 GMT

f1ss1on

Thanks, but it is rated with those timings. Does that make a difference?

Not really.

If it isn't working, back off some with the timings.

Or try one stick at a time.

It's entirely possible you have one bad stick - that is close to working, but not quite - that makes the whole thing unstable.

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 30 Mar 2012 19:14:58 GMT

Thanks, but it is rated with those timings. Does that make a difference?

Re:P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 30 Mar 2012 19:13:39 GMT

Sorry, Replied

Re:P55 FTW Overclocking to get 2133Mhz in ram (xanderf)

Fri, 30 Mar 2012 19:09:27 GMT

If I had to guess, I'd say it was the memory timings.

If you are using your old memory timing (9-11-10-28) that worked for your old ram at something like 800mhz, it may not work for this memory at 1067mhz.

Try something like 11-11-11-32 and see if that boots.

P55 FTW Overclocking to get 2133Mhz in ram (f1ss1on)

Fri, 30 Mar 2012 18:55:28 GMT

I recently upgraded to 16GB Gskill Sniper 2133Mhz ram. I currently have followed the overclocking guide found here at the forums. How do I achieve more than 1600Mhz though? When I try to go higher, it just gets a 6F error, and wont even boot to bios.. What am I doing wrong?

Steps I took to increase ram was dropping the multiplier to 13 and increasing the BCLK. I hit 2133MHz, but no boot

Here is my stable setup

Specs:
Core i7 870
Evga p55 ftw
Corsair H100 Cooler
2x corsair force gt 60GB raid 0
2x wd velociraptor 150GB raid 0
Evga GTX 580
16GB Gskill sniper (F3 - 17000CL9Q - 16GBR)
creative fatal1ty x-fi titanium pro
killer 2100
corsair TX750

BCLK 200
Multiplier 18
PCIE Frequency 104MHz
QPI Frequency 4.270 GT/s
Without V Droop
Bootup CPU Vcore 1.30000V
Eventual CPU Vcore 1.30000V
Dimm 1.65V
Bootup CPU VTT - 1.40V
Eventual CPU VTT - 1.40V

Mem Frequency - 1067 (2:8)
Mem Timings 9-11-10-28

Please Help, I want the full potential of the ram......