Well ... Spent a few hours tweaking a little over the weekend.
Now have the X5680 stable @ 4.413 running 1.34V
Can get it to boot comfortably into windows and happy @4.5 @4.55 but crashing during testing.
Temps are fine, I do not see it getting over 70 with full load and the temps are level across the board.
I think it is a ram issue that is crashing the system.
As mentioned before running a Evga X58 SLI Classified ... And running 12GB Corsair Dominator-GT 2000MHz DDR3.
This is 6 x 2G ... Ram is 2x sets of triple.
Rig detects 10GB in bios (12GB in CPUz) and for the mountains of reading over the weekend it seems EVGA boards have a issue all 6 slots.
I have tested all in slot 1, and all in 6G mode, but as soon as I get all installed one of the slots stops detecting.
So I will try a few more tests tonight as read a few voltage suggestions on the VTT which I am according to all I have read I may not be pushing the volts enough (suggestions range from +150 - +300) currently I am at +100 and looking at my old I7 I ran it at +250 then so that maybe the issue.
Ether way I am still happy as with the current settings ether way as I am solid @4413 and get 965 on benching compared to 563 on my old chip.
I am considering new ram but it is hard to get Triple kits now, I have read Dual ram will be 30% slower than triples so wondering whether if I get 3x individual 8G DDR3 1866Mhz (GSkill or Kingston) whether that would work better than Dual or the 6 slots I currently run.
Ram at the moment are sitting at 1750Mhz so it would be inside the spec of the ram :-)
I know I could sell mine for good money still as they are awesome and I have all the packaging and fan etc.
So yeah think I need to fix my ram issue to stabilise @4.5. Would love to get 1000 bench so advice welcomed :-)
bill1024
What are your temps when running prime95 or Intel burn test? What are you using for cooling?
What memory are you using, what is it rated for and what are you running it at?
PSU make and rating? Just wondering, these systems when overclocked and with GPU overclocked can draw more power than you may think.
The base VTT voltage on the Classified is 1.2v, so +150mv is 1.35v I would not go over that. I would try to stay at 1.3 or under if I could.1.35 with CPU voltage as well
I always set CPU and memory timing, voltage, uncore and BCLK manually, no on auto.
I run uncore at 2x memory speed or just one click under. You may have to go a little lower if you are trying to get real high memory clocks.
Keep memory speed and timings lose until you see where your CPU tops out so you do not cause issues you think is the CPU.
Temps - Basically getting 70 across the board under 100% load. Monitoring inside my iRacing sim I get to 50 max. Idle low 30.
Memory - 12GB Corsair Dominator-GT 2000MHz DDR3 - 6x 2G 2x Triple Kits - Currently sitting at 1700Mhz with clock settings.
So inside ram spec but as above I think its the X58 issue with 6 slots holding me back.
Sooooo will Dual preform ok or is it a noticeable amount slower? or Option 2 was getting 3x same brand, speed etc
of 8G chip as triple kits are few and far between now.
I think my CPU volts are ok I'm at 1.34 at the moment and get the same crash @ 1.35 ... I will check what my other setting are tonight when I try and sort this dam ram out ... pain in the arse it not detecting everything,
Thanks for all the help, loving the upgrade!!!!