Gigabyte EX58-UD5/Extreme Discussion Thread

[roadtonowhere08]

Ive got the same 12Gb of memory as you.

This works on F5g, F6b, F5 final:

Select xmp profile as this automatically sets the correct memory and qpi/Vtt volts (1.65/1.35). The memory will actually run at lower volts than this if required. Memory will run at 1688 10/10/10/26 automatically.

Set the memory multiplier to x8.

Set Bclk to 211 and multiplier to x19 gives 4 Ghz.
Set processor volts to 1.41825 in bios. They will be much lower in CPUZ. Only with a decent cooler.

Set Uncore manually to give 2x memory speed = 2x1688

Set LLC on.

Set ICH to 1.2v

Dont forget to set the PCIe to fixed value at 100.

Turn off HT and set Standard (not turbo or extreme).

Turn off processor turbo mode.

I've typed the above from memory so may have missed something but if you have problems I will check my settings. This on the Extreme MB.

Memory bandwith 29G/bs according to Sisoft. Prime95 2 hours max 75C ish.
Much lower for games (60C).

That did the trick for me. Must be either the tad bit higher voltage for CPU or ICH (which I did not change before).

I am idling at around 45-49C and ffdshow load gets into the mid 60s. I do not care for benchmarking, so I doubt I will get much above that. I did not enable LLC. In addition, I did not go so high with the Bclk, my memory is set at DDR3 1520MHz (1.65v which I believe is stock for this set), and I still have HT enabled. I am thinking about easing off the CPU and ICH voltages a bit because of this.

I have a question though. Since I will not be getting another system for at least a year or two, are the following voltage and temperature readings fine for long term use?:

*All measurements using latest Everest Ultimate*

Voltage:
CPU - 1.38v (is this the REAL voltage and the BIOS one is erroneous due to vdroop?)

Temperature:
"North Bridge" - 55-60C

EDIT: While I am at it... when I play a video through ffdshow, the CPU speed changes between 2.2GHz and 3.6GHz (the speed I settled on) throughout the movie. I assume that is the i7 speed step throttling working. Is that actually good for the MB/CPU power circuitry to have that happen repeatedly or would deactivating all powersaving features be better for long-term reliability?