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Athlon II X3 64 435 2.8Ghz O/C Possibilities and Limits

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I likely would go for something " I " would consider more High Performance oriented but lately even in this forum, I have seen some say the 880G chipset does pretty good at holding a good overclock. Your cpu is 3 core and no L3 cache so its' load should not be too heavy for one of these lighter boards that still has a good feature set.

Link >> ASUS M4A88TD-M/USB3 has newer Usb 3.0 and will unlock and in one review that I looked at it pushed a 550BE to 342 FSB/HT. So it has to be pretty adjustable. But it uses DDR3 ram and not DDR2 and is an AM3 chipset board.

I have n0 clue what you can actually purchase in Greece, but something similar to the board linked would likely do a good job. Of course everyone will have "their" best suggestion but you asked and this is just something that is fairly late in "type" and is not overly expensive at the price in link above. Luck man. RGone...ster.
 
I am excited. I broke the 220Mhz FSB "wall". I remind you that over 220MHz FSB i had BSOD with memory faults.

I found the problem....!

I had set RAM timings to "auto" on BIOS and this seems that was the source of the problem. I found it by "mistake"....

Now i have set RAM timings to stock/safe area and now already i reached 3.4GHz stable with 2 minutes effort! I am very confident that i will reach a good speed if i have the time to experiment.

Target for me is 3.5Ghz and then i will be happy...

See you soon! ;)
 
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3.6Ghz reached and seems my final setup. stable for 1 hour on prime95.

FSB 248x14.5

core voltage 1.525

Max temp 70oC

I can reach more freq but i need from this point and on, too much voltage for every fsb raise, so i believe it is not worth it. Plus that i always have fails (on prime95) coming from the 3rd core. I dont know why but the other 2 cores can run even at ~3.8Ghz without problem and less voltage.

3rd core is my limiting factor.

I think its a good result after the first disappointment.. Passmark showed +20% performance improvement and it seems realistic.
 
70C is about the throttle and failover temperature for those CPUs. Granted you probably won't be hitting that temp with anything but OC checking software but I personally aim for under 58-60C to take into account ambient temp fluctuations. Interesting you were able to get a bit higher FSB with looser RAM timings. I thought running my 1066 RAM at 800 but with 1066 RAM timings would be pretty light on the IMC but I may try loosening them up and finding if there is any extra CPU headroom.
 
I dont think that is temp issue because with lower voltage i had prime95 stopping worker in core "3" for the same reason earlier (after 5 minutes).

We have Summer here and the room temperature is already too high (~30oC), thats why so high temperatures in my CPU.

Prime95 is too sensitive some times. It is strange that you can have 200MHz more and playing heavy games all the day without any issue, the same time prime95 is alerting for problem after 2 minutes of "torture test".

So for me if you pass 30minutes of Prime95, you are stable.
 
I read some articles about athlon 45nm overclocking and i found that they need very little voltage boost to reach good speeds.

In my case my CPU demands 1.52v to run stable for hours on prime95 at 3.6GHz.

Strange?
 
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