E6750 Help

[T27M]

Hello im going to try and include as much as i can in the first post to get this sorted.

System

E6750
P5N-D 750i SLI mobo
4gb OCZ Ram PC-6400
2 x 8800GT 512mb
Corsair TX 750w PSU

Please correct me if i went wrong....

I read of few things and began working on it.
Set the ram timings to 5 5 5 15
FSB to 1600
Linked the timings and put them into "sync mode" as its called in the bios
Now it says
FSB 1600
MEM 800

Left everything else as was and booted up, booted fine things looked good. Then 4hrs into orthos it failed. Now i dont really dont know what to change, i was thinking tweak up the Vcore a little looked and it was set to "auto". Since i dont know what it was already at i wasnt sure what to change it to. I started at 1.35v eventualy i got it to boot at 1.375v lasted for about 10 min then froze up. Nudged it to 1.38125 froze on boot up. I was going up the smallest steps i could for the voltage.

Do i need to change ram, NB, SB voltage or speed to ?

So any advice would help me a great deal.

Also i need some other things cleared up

In cpu config i see some things: enabled(e) , disabled(d) and auto(a)

CPU internal thermal control: a
Limit CPUID MaxVal: d
Enhanced C1 (C1E): e
Execute Disable Bit: e
Virtualization Technology: e
CPU multi: 8 , i changed this from 6 to 7 reading higher Multi is better most of the time, and it ran slower than stock ?, im assuming it was at 8 but not sure what went on there. I looked in CPUZ while orthos was testing at stock speeds after changing this and only this.
Enhanced Intel Speedstep Tech.: d

So do i need to change any of these.

Thanks

[Clunk]

Welcome to the forums

I haven't used a 750i board, so I'm just guessing, but you have done the basics right so far. To find what voltage the CPU is running at on auto, just open something like Everest and check the voltage...CPU-Z might do the trick too.

A couple of notches of NB voltage won't harm, and disabling the power saving options is often beneficial, but as I say, I haven;t used that board, so It's a guess

[Kelainefes]

Welcome!
What's your CPU cooler?

[T27M]

Thank you

Well i nudged the NB up one and left the Vcore on auto its booted and now stress testing. while i was in the bios i saw an option called AI tuning with 5, 10, 15 and 20% gain options. Are these any good or is better to do it manualy ?

I dont like playing with voltages and now its a waiting game

[T27M]

Oh sorry didnt see that , ive a freezer pro 7

[T27M]

Also got real temp, core temp and everest running to check the temp there all within 3 to 4 degrees to one another so i think they should trust worthy. So far havent went above 62 but that number is high for my liking

[T27M]

Well it looks as if that has sorted the problem out stable for 12hrs now. Is that to short , how long should i leave it if so ?

[Kelainefes]

12 hours of Prime 95 or Orthos is definately enough, and 62C is not that high; take into account that when you play games your CPU will be at around 50C as it won't be stressed as much.

[T27M]

Yeah i guess, well it seems to be running fine, havent had much chance to test it on games. Thanks guys

[Kelainefes]