My x2 4000 Brisbane runs fine @ 2738Mhz at 1.4vcore (everest says 1.44). But I can't get more out of it without really cranking up the voltage. So, my question is... how high of a vcore can the Brisbane take without getting fried? And other than the norm... Is there anything I can do to try and get more Mhz out of my cpu? Like would it do any good to increase the chipset or HTT voltage?
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a64 Brisbane questions
- Thread starter juane414
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- Apr 22, 2005
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Post some of the other vitals, ram type, speed and voltage, HT speed? 
1.45 is the Max I would subject my 65nms to 1.5V for the others. Above that I don't feel is justified just a 100 or so mhz.
1.45 is the Max I would subject my 65nms to 1.5V for the others. Above that I don't feel is justified just a 100 or so mhz.
- Thread Starter
- #3
ram is gskill pc6400 running @ 391MHz with 1.9v, HT speed is 260 (all stable)... BTW if my HTT is 260 and my ram is 391... should I drop my ram and tighten my timings or leave it at 391, increase voltage, and tighten timings?
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Actually you should be able to run that RAM at about 425-450 on about 1.9V-2.0V but with looser timings. 5-5-5-18. At 450 you should get 8500-9000MBs. Even with tight timings at 390 you only get 7500-7800MBs. When you set the ram, boot only into Memtest from hitting F8 in Win Startup or booting a Linux CD.
By HT I'm talking about the HyperTransport speed which should be 750-1025 (1600-2000 effective). HTT x X3 (260 X 3 = 780).
By HT I'm talking about the HyperTransport speed which should be 750-1025 (1600-2000 effective). HTT x X3 (260 X 3 = 780).
- Thread Starter
- #5
If I drop my bus speed to 250 I can hit 437MHz on the memory... but at 260 bus speed its unstable and I have to drop the memory to 391MHz. I'm guessing I just don't have the best OC'ing cpu. Is there anything else that I could try? Otherwise, would it be better to run 260 bus with 391MHz and 4-4-4-12 timings or 250 with 437MHz and 5-5-5-15 timings?
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