F3-17066cl9t-6gbps + ga-ex58-ud5

[sherif]

Hi,

I'm trying to use a couple of F3-17066CL9T-6GBPS kits on a gigabyte GA-EX58-UD5, I have a core i7 920. I tried the settings in http://gskill.us/forum/showthread.php?t=2304, but no luck. Any suggestions ?

thanks

[sherif]

one more piece of info, the max I can get it to work at is 1800MHz, with latencies of 8-8-8-21. I couldn't get it work at higher with higher latency settings. The processor runs up to 4GHz no problems, it's currently running at 3.6GHz with BCLK=180MHz

[Tradesman]

What are your RAM advanced timings?

[GSKILL TECH]

Memory controller is in the processor as well. By running the processor at 4.0GHz, it may be too high to operate the memory at 2000+. What do you voltages look like?

Thank you
GSKILL SUPPORT

[sherif]

Hi, my latest settings are

CPU Clock Ratio = 20x
QPI Link Speed = Auto settles to 6.66GHz
Uncore Frequency = Auto settles to 3700MHz
Isochronous Support = Enabled

BCLK Freq set to 185MHz
SPD Memory Mult = 10 -> settles to 1850MHz
Latency timings are 9-9-9-24 CMR rate 2

Advanced CPU settings:
Turbo Boost = Disabled
CPU Cores Enabled = All
CPU Multi-Threading = Enabled
CPU Enhanced Halt (C1E) = Disabled
C3/C6/C7 State Support = Disabled
CPU Thermal Monitor = Disabled
CPU EIST Function = Disabled
Virtualization = Disabled

Voltage settings

CPU Core = 1.4V
QPI/Vtt = 1.335
CPU PLL = 1.9

PCIE = Auto -> 1.5V
QPI PLL = 1.34
IOH Core = 1.34
ICH I/O = Auto -> 1.5
ICH Core = 1.34

DRAM Voltage = 1.7

[sherif]

so with these settings I managed to push the speed a little further to 190 BCLK when removing a kit (6GB), now it looks like it's a board/system problem because the higher speed can only be achieved using certain slots on the board, if I use the other slots with the same memory I can't push the bit of speed.

from your experience is the mentioned board good for such high speed memory ?

I tried using a lower BCLK with a higher memory multiplier, still couldn't get the memory to get past the same boundary (1800 -12GB or 1900 - 6GB), would you recommend another board/CPU combination

thanks