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4X512 possible issues - Page 2

post #11 of 39
AMD's memory controller is better in certain ways, but this is an issue in which the Inter controller wins.

Note that the memory controller gets into trouble with 6 or more banks of memory. In older CPU revisions, it will drop the speed back to DDR 333 speeds, and the command rate to 2T. In newer revisions, it will maintain DDR 400 speeds, but still force 2T.

What does 6 banks mean? If your 512MB sticks are double-sided, you'll have 8 banks of memory, while with single-sided sticks, you only have 4 banks. That's why odie probably doesn't have a problem with his four sticks (I am guessing those are single-sided).

So, check if your sticks are single- or double-sided, and go from there.
    
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post #12 of 39
I was just about to say what Chozart said. He is most definitely right and AFAIK the 512MB sticks of Corsair are single sided...
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post #13 of 39
With the IMC, using both memory controllers can affect your OC, depending on what your are clocked at will depend on i you need to do some adjustments. You will definately have to run 2T or you will have problems. I would say you are better off selling/trading your ram and getting 2x 1GB sticks.
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post #14 of 39
Thread Starter 


Ok, I finally got my extra 2 sticks of ram . They are all the same brand and model. I started slowly upping my FSB til I hit 250 , after that it failed to boot. I knew i would get less of an overclock having 4 sticks, but not this much. Is there something else I can do? any suggestion would be helpfully. Also I noticed the 3rd and 4th slots list a 133mhz? anyone know why this is? Thanks again in advance.
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post #15 of 39
are the timings on auto? the reason it lists 133MHz is that those are the timings that it uses when running at 13MHz on auto. to get more of a oc try and manually change the timings to 3-3-3-8.
post #16 of 39
Thread Starter 
THey are set manually. The second CPU-z pic is what they are running at right now.
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post #17 of 39
Quote:
Originally Posted by Damage82 View Post

Ok, I finally got my extra 2 sticks of ram . They are all the same brand and model. I started slowly upping my FSB til I hit 250 , after that it failed to boot. I knew i would get less of an overclock having 4 sticks, but not this much. Is there something else I can do? any suggestion would be helpfully. Also I noticed the 3rd and 4th slots list a 133mhz? anyone know why this is? Thanks again in advance.
Are the third and fourth slot sticks of the same kit? And does CPU-Z give the same part number of all four sticks?

Even though they're same brand/model, they *could* be different. There are different versions of the same model on the market in many cases...

Seems you're not able to run much over stock on the RAM. Have you tried finding the individual limits of CPU/RAM/MoBo? Try the lowest divider possible on the RAM, and see how far the CPU goes. Then, try the highest divider possible, with the lowest CPU multi to find the RAM limit. Finally, lowest divider, and lowest multi to find the mobo limit. Then, check the results and see what best combination you can get.
    
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post #18 of 39
Thread Starter 
Yes and yes to the first question.
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post #19 of 39
There seems to be a slight difference between the kits though. The SPD readings is just the infomation that's stored in the RAM itself... the RAM reports what timings are possible with those sticks. That it also reports timings at 133MHz, does indicate at least a change in the SPD information, and possibly a bigger change.

But, the sticks are running, albeit at loose timings (at nearly stock speeds)... Have you tried to new kit individually to see if it isn't a dud on its own?
    
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post #20 of 39
Thread Starter 
NO I haven't , I will give that a go....
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