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RAM speeds in MemTest don't match CPU-z?

post #1 of 6
Thread Starter 
I just put a set of 2x4Gb Crucial Ballistix Elite sticks (9-9-9-27, CR 1T, 1.5V 1866) into my sig rig, went into BIOS set up the timings, voltage etc and booted up into windows. CPU-z looked like it should but when I went I booted into MemTest I was showing that they were running at 834 MHz like DDR3-1669.

I threw in another pair of sticks and there is a similar discrepancy going on. What gives? Things seem to run fine but this is going to bother the hell out of me.
post #2 of 6
Pics?
post #3 of 6
Memtests isnt up to date with sandy IMC. It displays wrong, but its operating at the right speeds during testing.
post #4 of 6
Thread Starter 
Quote:
Originally Posted by ghostrider85 View Post

Pics?

I'll post some of both kits when I get a minute. I'm doing a clean install of windows on a new SSD and got some other things going on with my loop that desperately need taking care of.
Quote:
Originally Posted by Xinoxide View Post

Memtests isnt up to date with sandy IMC. It displays wrong, but its operating at the right speeds during testing.

I hope you're right.

Now all I need to do is figure out what's making the RAM so unstable--when I get some time I'll try playing with the voltage but this new Crucial 1.5V 1866 kit gets its settings in BIOS reset like 25% on reboot. I have NEVER had any problems with my 1600 Ripjaws. RAM is really such a pain in my ass.
post #5 of 6
Yeah, My ripjaws are stock 9-9-9-24-2T 1.5v 1600mhz

I keep them at 9-9-9-24-1T 1.409v 1600mhz.

Ripjaws are just amazing!

I did get to build a system with the new Samsung LP 30nm rams.

Holy crap. 11-11-11-30 1.38v @2133. It was just meant to do it.

back to your crucial ram, Have the sticks passed memtest one at a time?
post #6 of 6
Thread Starter 
Not sure what I did but things seem much better--much better. When I first installed this new RAM I'd get random BIOS resets from time to time. After switching back and forth between the two kits that I have though, that is not happening at all.

The only thing I can think of is that I did a BIOS flash/update to F10 but I am almost positive that I did that before my first memetest run. It's possible that it was after and that that has fixed things but I've had alot going on--also did a fresh install on a new SSD etc.

I tried to reproduce those strange memtest readings but couldn't--should have taken pics the first time... Here are the results after things stabilized.

1866 kit

p1010658hp.jpg
By denali6194 at 2012-03-11

1600 kit

p1010661t.jpg
By denali6194 at 2012-03-11

The frequencies displayed are closer than they were when I made the OP; close enough, at least enough for me to sleep better. I guess its just one of those things where the BCLK, etc don't read exactly as set. The new RAM seems fine too; almost 10 hours error free is good in my book. I threw my old g.skill kit back in to see what would happen and the frequencies looked better as well. Should be able to get this kit to 2133 easily.

Good news for now.
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