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AM2 X2 3800+ wont go over 2.3ghz, why?

post #1 of 16
Thread Starter 
Ok, I have been trying to hit 2.4GHz for a week now. My ultimate goal is 2.6Ghz. I am running 2.3Ghz completely stable. My temps are 20-24C idle and 30C load. I have hit 2.4GHz but when I play a game it blue screens. I am over clocking with only the FSB. What tweaks should I do to achieve higher Ghz. Also my RAM is auto-overclocking to DDR2 779 and stock is 667. That may be a problem i'm not sure.
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post #2 of 16
1. Disable Cool N Quiet.
2. Disable any setting with "Spectrum" in it.
3. Contain the overall HT speed to under 1300MHz (high 1200s on AM2s seem to be the max).
4. Are you using a Divider on your RAM, if necessary?
5. Increase the CPU voltge only as necessary, more voltage does not gurranty a higher OC.

With the RAM, set the default speed to the next lower default available from DDR2 667, that would be using the "divider" which will help to prevent overly OC the RAM. Also you could up the RAM voltage about 0.2v also.
    
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post #3 of 16
Thread Starter 
Ok I have most of that. Now I havent even put my voltage up, would that help? Also what is my HT speed. Other than that it makes sense. Thanks alot.
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post #4 of 16
At a certain point in OCing the CPU, RAM, memory controler and chip set may require increases in voltage.
RAM, as I said, a few tenths of a volt, that is a safe increase and will help the RAM to run higher speeds.
CPU, several things to consider, how much, only 0.1v increases at a time when you hit instability but do watch the "Full Load" temp when testing with OCCT or Orthos which will full load up the CPU and heat it up. The MAX Full Load temp is considered @ 50c and preferably no higher when OCing.
The HT... or "LDT" on a DFI MB
That is the memory, it's base speed which is the CPU's OCed speed multiplied by the memory controler. Here is how it works.
The CPU speed is 200 @ default or stock speed, it's multiplyed by 5 for a total of 1000. Remember this, some where around the 1200 range is getting to high and causes instability (preferably keep it under 1100) so...
You will likely only see an HT or LDT of 5, 4, 3, and 2 in the BIOS
The CPU multiplyer will likely be 10, 9, 8, 7, 6, 5,
Once the CPU is OCed to about 260 use a 4x for the HT or LDT. Above 2160 frop down to a 3x.
The HT or LDT multiplyer is not the "CPU" multiplyer so dont confuse them.

Later you might need to increase the memory controler and chip set voltage but for now don't worry or bother

BTW, if you don't have CPU-Z, do get it @ www.cpuid.com because it's handy and will show you the HT (LDT) CPU OC speed and RAM speeds and timings!
    
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post #5 of 16
I know that is a lot, but trust me, it will quickly all make sence

I edited the previous post so refresh and reread my correction!
    
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post #6 of 16
Thread Starter 
Duke you rock! I hit 2.4 and fully stable! I ran Oblivion just to make sure. Thanks alot!
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post #7 of 16
There is likely 2.7-2.8 in that CPU with a little work ... maybe even more
Nice work, your getting the hang of it
    
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post #8 of 16
Nice job Duke. /irony
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post #9 of 16
my max overclock on the same cpu is 2.7...i cant get it any higher....ive heard of others going higher with this same cpu but i never saw any proof...if someone can tell me how to get it higher , im all ears , ive tried everything.
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post #10 of 16
Quote:
Originally Posted by xtcrulez View Post
my max overclock on the same cpu is 2.7...i cant get it any higher....ive heard of others going higher with this same cpu but i never saw any proof...if someone can tell me how to get it higher , im all ears , ive tried everything.
just looked at your cpu-z verification. Have you ran a lower HT multi?

as your ht link is at 1350Mhz....
try lowering to a 3x multi and raise fsb a bit more. The 5x multi is pretty much useless past 200-220Mhz fsb.
Also make sure you raise voltage if/when you need more.
    
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