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Rampage Formula X48/Q6600 G0 Stuck @ 3.4GHz...Advice?

post #1 of 7
Thread Starter 
Hello all,

I finally got my Q6600 stable at 3.4GHz today, and I have a few questions...

- I used the 333 FSB strap with an 8x multiplier, which gave me a divider of 1:1. The 400 FSB strap also gave me a 1:1 divider. What is the difference between the two here, and why are either beneficial?

- I seem to have hit a wall at 3.4GHz. At this point, the only change in settings that lets me go past 3.4 is a vcore increase. Is there a better way to move forward without increasing the cpu voltage even more?

- The RAM is overclocked with respect to the 1:1 divider and the FSB. I feel like it too is stuck where it's at. If I touch any RAM settings I don't get a post. Can I clock the ram even faster than what is governed by the FSB strap? I also can't set the command rate to 1N with any stability...is there anything that I can do about this that I'm missing?

Thanks in advance.



Edited by Osiris[405] - 7/27/11 at 12:37am
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post #2 of 7
1:1 is overrated. If you can lower the RAM speeds to allow for a faster CPU clock that would be more beneficial than a 1:1 bus ratio.

Vcore is the easiest thing to change to get better clocks. That chip can take a decent amount of voltage as long as your temps are in check. I wouldn't push much above 1.5v though.

You can only go as high as the ram multi will let you. It's been way too long since I touched anything 775 related, but IIRC you shouldn't have much of an issue going higher on your RAM, it's just a matter of if they can handle it.
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by Crystal_Castles View Post
1:1 is overrated. If you can lower the RAM speeds to allow for a faster CPU clock that would be more beneficial than a 1:1 bus ratio.
So you're saying something like a 5:3 would be a better option?

Quote:
Vcore is the easiest thing to change to get better clocks. That chip can take a decent amount of voltage as long as your temps are in check. I wouldn't push much above 1.5v though.
I've always heard 1.4v is a bad place to approach; it doesn't seem like getting a decent OC is going to be possible without going over 1.4v. Is this commonplace these days?

Quote:
You can only go as high as the ram multi will let you. It's been way too long since I touched anything 775 related, but IIRC you shouldn't have much of an issue going higher on your RAM, it's just a matter of if they can handle it.
Does this mean your RAM clock will always be strictly governed by the FSB - no matter what? The RAM is rated at 1066, so it should be fine.
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post #4 of 7
Whatever allows the highest CPU clock is what would be best, if you're hitting a wall because of your RAM lower the strap to something that won't be as strenuous on your sticks.

IIRC that's a 65nm chip, those can handle volts pretty decent. I ran an E6300 at 1.49v for a couple years at 3.5ghz and never had any issues. A friend still uses her to this day!

Yes, RAM clock in the end is directly effected by your bus speed. After a certain point you will have to increase your FSB to get more speed out of the RAM.
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post #5 of 7
Thread Starter 
Quote:
Originally Posted by Crystal_Castles View Post
Whatever allows the highest CPU clock is what would be best, if you're hitting a wall because of your RAM lower the strap to something that won't be as strenuous on your sticks.
I understand how this chart works, but there's something I don't get...what determines which divider is chosen (first, second, third)? What determines which divider is used when I choose either FSB strap?

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post #6 of 7
Oh man, it's been way too long. I'm thinking that the divider is chosen when you can set a separate DRAM strap. so that you have more control over your speeds.

Like I said, it's been way too long since I tinkered with 775 stuff.
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post #7 of 7
Thread Starter 
EDIT: I found a better diagram.


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