Kvatch

really? I have used RAM at 12.5x multipliers on both my k9a2 and an older ABIT KN9(or K9N I cant remember) and in both cases, it ran at less than the speed that it should have run (800Mhz and it was set to around 700MHz). Maybe the new phenoms have gone back to the old RAM divider configurations, but apparently OpticWaves is still experiencing a problem that coincides with what I am saying. If I am wrong, and this does not fix your problem Optics, then at least I figured out that the Phenoms do not configure RAM the same way as standard AM2 chips. Since I am getting one as soon as I get the money, it would be helpful for me as well. Try lowering your CPU mult down to x12 and see if it bumps your RAM up to 1066. If it does, post here. Dont worry about your CPU clock yet. If it solves the problem, it would be much easier for someone to help you knowing that we now have eliminated any possible sources of error. If it doesnt, then you've stumped me...look on google maybe. If in doubt, google it lol.

__________________
http://service.futuremark.com/compare?3dm05=4318525
to go to 1.52V or not? That is the question.

turboanything

Optic never said he was running 12.5 i did.

__________________
http://service.futuremark.com/compare?3dm06=6143479

OpticWaves

I'm running 13 x 226.

Thanks for the reply Kvatch. As I stated, I understand that the CPU speed is more important.

I'm doing this more for a challenge, learning, and the self satisfaction of looking at CPUZ and seeing 533Mhz.

The issue with this chip is the FSB barrier. I'm sure I could lower the multi and get it to 1066, but that would mean running even below stock CPU speeds. Like everyone else here, I want to have my cake and eat it too.

I've been meaning to read more from OCZ Tony's explorations with this MB/CPU combo, but that guys speaks a select dialect of geekanese that I have to read repeatedly to undersand. I did try to raise the HT multi by using the HEX codes last night, but I was tired, it didn't post, and I just cleared smos and went to bed.

turboanything

I still don't see why you do not set you Mem multi higher like me to get your 1066mhz.http://i191.photobucket.com/albums/z...thing/june.jpg

__________________
http://service.futuremark.com/compare?3dm06=6143479

Kvatch

Ok, thanks for the reply as well. Just wanted to clarify that. lol I've never heard of being able to use hex codes for anything. I'd love to read up.

__________________
http://service.futuremark.com/compare?3dm05=4318525
to go to 1.52V or not? That is the question.

OpticWaves

Memory Multi? I thought that was calculated based on other values, not a value you set itself.

OpticWaves

Well, this is wierd. I just gave up on try to OC my memory, and started testing the CPU again. I set it to 14x200, and now I'm running at 2.8G and 1066 mem. This is contrary to everything I've read about OCing memory. The timings are set different too now, on auto it set them to 5-7-7-20-33-2T.

I'm going to set them to 5-5-5-16-33 and see if it'll run. If so, up up up goes the FSB at 14x.

The Duke

If you do the math, you should find the .5x does effect the RAM speed, where as it did not in the 939 days because the 939 memory controller only worked with whole integers.
Whenever I tried .5 with the Crosshair, the RAM speed fell in between the whole integers in the RAM chart.
http://www.overclock.net/amd-memory/...-dividers.html

The actual operational RAM speed is based on the BIOS setting and CPU bus speed, whether the RAM was SET to a 1:1, divider or in the Phenom 1066 multiplier.

At a DDR2 800 speed with a 12x, you should be able to get to about 1066 with a CPU bus of about 266-7... eg. 1066/4 = 266.5 but that is not on the money, various CPU multipliers can slightly skew the overall RAM speed.

__________________

OpticWaves

It's really confusing because I cn't figure out what I did different. I loaded from a stable OC profile I had created, and raised the Ram Voltage to 2.2 and manually set the speed to 1066, just like I have done many times. I set it to 14x200 and BINGO !!! 1066.

I just can't figure out what I did differently than before.

Thanks everyone for the help and info.

Kvatch

thats what i told you to do. If you set the mult. to an even number, it will divide the memory by a number that will get the RAM frequency correct. If its set to a .5 or odd number your memory will be underclocked, because the next integer up will be used as the RAM divider, so the memory wouldn't be overclocked and possibly cause instability(the overclocking being the cause of the instability, not this process). This is put inplace to protect against instability caused by lower quality RAM on a nonOCer's system. Very annoying I know, but I had explained the mechanics of RAM dividers in my first post as well...

__________________
http://service.futuremark.com/compare?3dm05=4318525
to go to 1.52V or not? That is the question.