Hey Guys - I was able to experiment with overclocking my eVGA 680i (A1 - P29 Bios), QX6700 and Corsair DDR21066 Memory. I got to the point where I found the spot which my CPU was acting stable when I got my FSB to 356 (1424 QDR). I ran stable with Orthos for 4 hours with no errors.
Geeked with the results, I went to benchmark my system via 3DMARK05 to see what the impact would be on my scores. I typically score around 14400 with my setup running at stock speeds (BFG 7950 GX2 at stock). When I ran it the first time, I saw a lot of choppiness that was blatently slower than when I run under stock, and I scored around 8000? Since I thought it was the ya-yo speaking to me, I ran it again and scored 7900.
Now, I must admit that although I am not an expert at o'cing, I was pretty confident about how to oc the cpu. All of the usual suspects were set to disabled (All Spread Spectrums, CPU Thermal Control, Intel Speedstep, C1E Halt State), as well as unlinking my Corsair Memory (disable SLI-Ready Memory, UNLINK FSB-Mmory Clock Mode, and manually set the memory timings/voltage on my modules) to match stock speeds for the mem. Also, my volts were set as follows (1.35 CPU Core, 1.3 CPU FSB, 2.2 Memory, 1.4 SPP, 1.5 MCP, 1.45 HT Nforce). Again, I was running stable via Orthos, and temps were in good range via SpeedFan. Basically, I was manipulating the QDR and modifying voltages and monitoring temps.
Finally, my question - what would cause my performance to go down sooooo much? I think it has to be something that is so simple, I overlooked it. Outside of the Spread Spectrums, I did not change anything else on the System Clocks screen while O'cing, so my gut is telling me that the Mhz for PCIe may be involved, but I am not sure. Any thoughts,
Geeked with the results, I went to benchmark my system via 3DMARK05 to see what the impact would be on my scores. I typically score around 14400 with my setup running at stock speeds (BFG 7950 GX2 at stock). When I ran it the first time, I saw a lot of choppiness that was blatently slower than when I run under stock, and I scored around 8000? Since I thought it was the ya-yo speaking to me, I ran it again and scored 7900.
Now, I must admit that although I am not an expert at o'cing, I was pretty confident about how to oc the cpu. All of the usual suspects were set to disabled (All Spread Spectrums, CPU Thermal Control, Intel Speedstep, C1E Halt State), as well as unlinking my Corsair Memory (disable SLI-Ready Memory, UNLINK FSB-Mmory Clock Mode, and manually set the memory timings/voltage on my modules) to match stock speeds for the mem. Also, my volts were set as follows (1.35 CPU Core, 1.3 CPU FSB, 2.2 Memory, 1.4 SPP, 1.5 MCP, 1.45 HT Nforce). Again, I was running stable via Orthos, and temps were in good range via SpeedFan. Basically, I was manipulating the QDR and modifying voltages and monitoring temps.
Finally, my question - what would cause my performance to go down sooooo much? I think it has to be something that is so simple, I overlooked it. Outside of the Spread Spectrums, I did not change anything else on the System Clocks screen while O'cing, so my gut is telling me that the Mhz for PCIe may be involved, but I am not sure. Any thoughts,
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