I'm using an Asus P6T Deluxe, 6GB of Corsair DDR3-1333, and an i7-920. In the BIOS, I set BCLK to 166MHz, left SpeedStep and Turbo mode ON, set Vcore to fixed 1.25V, and left everything else at minimum (stock) voltage. Memtest runs fine for hours, I can boot into Vista and run 12 hours of OCCT multiple times without any issues. Temps stay below 70C thanks to the TRUE 120 and a good fan. Multiple hour gaming sessions are also without issue.
Sounds good so far, but I'm having problems with other peripherals. For example, the NIC says it's connected at 1Gbps but my max transfer rate if I copy a file is exactly 100Mbps (10% in task manager). At stock speeds I do get the full 1Gbps. Also, all of my SATA drives are visible when the system boots, but at some point the computer locks up for half a second or so and a SATA drive disappears as if it were unplugged (always the same one). Other SATA drives are unaffected, or at least it would seem that way. At stock, I don't have any problems with SATA.
Any ideas? I don't want to set the voltages to "Auto" because I know that the Asus BIOS tends to overvolt things when they really don't need it. But maybe I need to increase one of them manually? I bumped the Vuncore up to 1.25V and Vdimm to 1.60V with no effect. I've only got a 550W PSU but it's a good one and the stability during gaming (when the video card is also pulling mucho wattage) makes me think that I'm not experiencing a power shortage. I don't think I've hit the CPU limit because it actually runs OCCT stable at 3.8GHz, at the same Vcore. What could be running out of spec?
Sounds good so far, but I'm having problems with other peripherals. For example, the NIC says it's connected at 1Gbps but my max transfer rate if I copy a file is exactly 100Mbps (10% in task manager). At stock speeds I do get the full 1Gbps. Also, all of my SATA drives are visible when the system boots, but at some point the computer locks up for half a second or so and a SATA drive disappears as if it were unplugged (always the same one). Other SATA drives are unaffected, or at least it would seem that way. At stock, I don't have any problems with SATA.
Any ideas? I don't want to set the voltages to "Auto" because I know that the Asus BIOS tends to overvolt things when they really don't need it. But maybe I need to increase one of them manually? I bumped the Vuncore up to 1.25V and Vdimm to 1.60V with no effect. I've only got a 550W PSU but it's a good one and the stability during gaming (when the video card is also pulling mucho wattage) makes me think that I'm not experiencing a power shortage. I don't think I've hit the CPU limit because it actually runs OCCT stable at 3.8GHz, at the same Vcore. What could be running out of spec?