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post #11 of 15
In answer to the OP's question, it'll be your CPU.

All CPUs have a limit, some are lower than others, often you can get higher but only if you use insane amounts of voltage - you may have to scale the volts very quickly when you reach the upper limit just to gain a few mhz.
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post #12 of 15
Quote:
Originally Posted by Imperator Nick View Post
try clocking it down to 266mhz (It is giving out dual channel speed - so stock is reading 400mhz and not 200)

Although for it to be auto set down to 333mhz suggests the mobo is automatically underclocking your RAM as you OC the FSB.

Do me a favour and check your memory speed in cpu_z so we can see if the memory is running too fast or not
I'm pretty sure it's not a case where the mobo is automatically downclocking the RAM as they increase the FSB--I think it's a more well-known issue of what several Athlon 64 CPU/Mobo's suffer from when all 4 RAM slots are filled--they are all automatically downclocked from stock 400 MHz (or 800 if DDR2) to 333MHz, and set to a 2T timing because the memory controller cannot properly function at full bandwidth and 2T timings--I don't think there's anything that can be done about that. Yes, I agree--perhaps the next lowest divider may make it better--I'd set it to 133MHz (for 266 effective) and see if that helps.
    
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post #13 of 15
Thread Starter 
So is it generally better to only have 2 out of 4 DIMMs when overclocking? (Or is this only the case with AMD, and not Intel?)

Here is my cpu-z screenshot with CPU/RAM settings:
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post #14 of 15
Typically only AMD's suffer from maxing out the DIMM's (when there are 4 dimms).

Try removing two of your sticks of ram, and try again! You may have to put your ram on a divider this time, as it should not default to 333 and 2T.

If removing 2 sticks of ram and setting a divider don't do the trick...try lowering the multiplier to 10, and try again. Keep the ram at or near 200, and run that FSB up!

AMD's = Higher multiplier needs considerably more voltage :-\\
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post #15 of 15
Quote:
Originally Posted by immanuelx2 View Post
So is it generally better to only have 2 out of 4 DIMMs when overclocking? (Or is this only the case with AMD, and not Intel?)

Here is my cpu-z screenshot with CPU/RAM settings:
Well, judging from your your screenshot, all your specs look good--HTT and RAM frequencies are good. If your RAM isn't being OC'd too much (and yours is at 400MHz, which is perfectly on-par with stock), then I would say that your CPU is hitting a stability wall--it might go better with more vcore, but I wouldn't go more than 1.55v is possible. I think our CPU's are voltage hogs once you start hitting high FSB's.
    
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