It would be nice to know the version number of your Vengaence.
For example, ver5.12 Hynix-based sticks would be a totally different animal compared to, say, ver8.16 Nanya-based sticks.

 

I have 2 x 8 GB Corsair Vengeance 1866 DDR3 sticks and am in the same boat. I have tried to lower the CAS timings though first as I thought a faster cas timing would be more noticeable for general system snappyness than an overall RAM clock boost

Thoughts on this ? I am having a really hard time getting these stable at anything other than the auto XMP profile my Asrock Extreme 4 sets for them at 1866 however.

Also, if anyone is familiar with the extreme 4 bios CAS timing setting, how do you change the "2T" to another setting ? It appears to only accept 2T or Auto, which reverts to 2T.

 

Quote:

Originally Posted by Sam OCX

It would be nice to know the version number of your Vengaence.
For example, ver5.12 Hynix-based sticks would be a totally different animal compared to, say, ver8.16 Nanya-based sticks.

Thanks for your response. Where can I see this info?

Corsair Vengeance Pro CMY16GX3M2A1866C9 16GB (2x8GB) DDR3

 

bump for anyone with advice

 

The version number is printed on the module stickers.
You could start by setting them to DDR3-2133 at 10-11-11-30 with 1.65V in the BIOS. If that works out, try lowering the timings until you lose stability. (for ver3.24 Micron you can end up with something like 9-9-9 or 10-10-10, for ver4.21 Samsung you can end up with 9-9-11 or 10-10-11, for ver5.29 Hynix you can end up with 9-11-11 or 9-11-10).
If it doesn't work (say, if your kit is ver8.2x or ver9.2x) then there's not much use in overclocking the set that you have.

 

Thanks for the advice. I have version 3.24. I'll try the advice above.

 

Sam OCX, thank you for your help. I've been playing with it today and I have this stable now:
XMP profile 1
2200 MHz
1.65V
10-10-10-30-T2(auto)

I have follow up questions:
1. At 2133, 9-9-9-27 didn't boot windows. Is that normal even though 2200 works at 10-10-10?
2. My motherboard also has settings for "Secondary Timings" and "Third Timings"... What are they? Should I modify those?
3. Should I have it set to "T1" or "T2"? It defaults to T2, which is better?
4. If memory boots and doesn't crash under Prime95, can I call that stable & safe? I ask because I want to push it further but ofcourse I don't know if they are getting hot or close to blowing up...

Again, thank you for your help!

 

I know this thread is kind of old but I thought I would add that I just overclocked the 16gb Corsair Vengeance 1866MHz version C9R to 8-10-9-24 T1 @ 1.6V with an AMD rig. Good luck!

 

Gigabyte GA-Z77X-UP5 TH Socket 1155 LGA I7 3770K at 4.5 Ghz OC no voltage increase (yes this has always been a great OC) Have had it stable at 4.9 Ghz but wound it back to keep temps at almost standard with water cooling. For reference I have run this machine for years at 1866 Mhz running 9-9-9-25 1T at 1.5V.

Decided to push it a bit faster and seem to be stable at 2133 Mhz:thumb: running the 1866 Mhz XMP Profile 1 at 9-10-9-27 2T at 1.65V. Will start dropping voltages until it goes unstable.

 

Forgot to emention it's a 32Gb kit ... CMY32GX3M4A1866C9.
Quote:

Originally Posted by westsurf

Gigabyte GA-Z77X-UP5 TH Socket 1155 LGA I7 3770K at 4.5 Ghz OC no voltage increase (yes this has always been a great OC) Have had it stable at 4.9 Ghz but wound it back to keep temps at almost standard with water cooling. For reference I have run this machine for years at 1866 Mhz running 9-9-9-25 1T at 1.5V.

Decided to push it a bit faster and seem to be stable at 2133 Mhz:thumb: running the 1866 Mhz XMP Profile 1 at 9-10-9-27 2T at 1.65V. Will start dropping voltages until it goes unstable.

Forgot to mention it's a 32Gb kit ... CMY32GX3M4A1866C9

 

Before I use 8x2 vengeance pro 1866, and few month ago I add 8x2 more ram same spec though different version (1st version 4 and later 8). Usually my pc only restarted once/week but now since I add more memory it randomly restart around 24-48 hours with BSOD 124. RAM overclock to 2133 with 10-11-10-30 1t. Can anyone help to solve it?

 

I know this is really, really old but i thought i'd share anyways. I have this kit "cmy16gx3m2a1866c9" v8.22. My 4690k is oc'd to 4.4, my gfx card is oc'd too. But just never got around to oc memory.
But i just did, set it to 2133, 1.65v, 10-11-11-30 as mentioned in an earlier post and it booted just fine. I'll now let it run and see what happens in case it crashes, but so far i've fired up a game, twitch and youtube is running, so far so good.

So i just wanted to say thanks for your posts.

 

Hello Nicolaj.


I'm in the same boat as you. I have an old p8z68 setup for my venerable 2600k and I'd like to get my DDR3 1866 corsair kit at 2133 as well.

I know each kit are different but have you managed to lower your RAM voltage since (And keep speed @2133) ?
Did you have to also increase CPU voltage so memory controller can keep up with RAM voltage increase ?

 

Hello Nicolaj.

I'm in the same boat as you. I have an old p8z68 setup for my venerable 2600k and[...]

Yes i did. Lowered volt to 1.6v at 10-11-11-28. I did increase cpu volt, but for another reason because i increased the cpu oc. Cpu is now running 4.5ghz at 1.277v. It's been running fine since then, no crashes, no bsod.