I'm new to overclocking and in the process of trying to OC my Q6600 B3 to 3ghz. I'm using two sticks of 2gb OCZ DDR2 PC2 6400 SLI-Ready RAM. My motherboard is an EVGA nForce 780i. I set the RAM timings to 5-5-5-15 with the other settings on auto in sync mode with the FSB, voltage to 2.0v. I set the FSB and multiplier to 333x9, voltage at 1.4v.
I figured I'd start low with the vcore and slowly work my way up until it was stable (probably not the best method but I've read some forums where people did it that way). I started at 1.2625. Everything posted, got into Windows. Checked my temps, opened CPUZ and Speedfan. VID in CoreTemp remained the same at 1.3000v. I started running Prime95 on SmallFFTs and saw that the core voltage read in CPUZ and Speedfan were the exact same as stock: 1.224v and 1.22v, respectively. Within about 30 seconds I got a bluescreen, restarted and upped the voltage to the next setting.
Got back into windows, repeated the same process. Prime ran for about two minutes before core 4 errored, CPUZ and Speedfan were showing ~1.19v and ~1.2v for the core voltage, which seems particularly odd since that's below my stock values but at a higher vcore in BIOS. I restart, bump up the vcore two spots ahead to 1.2875. I get back into windows, repeat again, Prime runs for 5 minutes before an error on core 4. My VID in CoreTemp and core voltage in CPUZ and Speedfan are back to showing the same amount as stock.
Fourth time, I set the vcore to 1.3000v. Everything's still posting and Windows is loading fine. Open up the programs again, start Prime; CPUZ and Speedfan show 1.216v and 1.22v before I get another BSOD after 30 seconds of running Prime. The current value for the CPU in my BIOS shows 1.24v the entire time I'm doing this.
I'm not really sure what I need to do to get it stable other than keep trying to increase the vcore, but I'm concerned about the CPUZ and Speedfan readings. I know they'll always be different/lower than what's set in BIOS because of vdroop, but the fluctuations I'm getting don't seem right. Any thoughts/advice?
I figured I'd start low with the vcore and slowly work my way up until it was stable (probably not the best method but I've read some forums where people did it that way). I started at 1.2625. Everything posted, got into Windows. Checked my temps, opened CPUZ and Speedfan. VID in CoreTemp remained the same at 1.3000v. I started running Prime95 on SmallFFTs and saw that the core voltage read in CPUZ and Speedfan were the exact same as stock: 1.224v and 1.22v, respectively. Within about 30 seconds I got a bluescreen, restarted and upped the voltage to the next setting.
Got back into windows, repeated the same process. Prime ran for about two minutes before core 4 errored, CPUZ and Speedfan were showing ~1.19v and ~1.2v for the core voltage, which seems particularly odd since that's below my stock values but at a higher vcore in BIOS. I restart, bump up the vcore two spots ahead to 1.2875. I get back into windows, repeat again, Prime runs for 5 minutes before an error on core 4. My VID in CoreTemp and core voltage in CPUZ and Speedfan are back to showing the same amount as stock.
Fourth time, I set the vcore to 1.3000v. Everything's still posting and Windows is loading fine. Open up the programs again, start Prime; CPUZ and Speedfan show 1.216v and 1.22v before I get another BSOD after 30 seconds of running Prime. The current value for the CPU in my BIOS shows 1.24v the entire time I'm doing this.
I'm not really sure what I need to do to get it stable other than keep trying to increase the vcore, but I'm concerned about the CPUZ and Speedfan readings. I know they'll always be different/lower than what's set in BIOS because of vdroop, but the fluctuations I'm getting don't seem right. Any thoughts/advice?
Facebook
Twitter