Help needed with overclocking my Xeon W3690

Damob9k

Damob9k

Damob9k

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4 May 2015
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47
Hi There,

I have recently bought a W3690 s1366 to go into my Asus P6T (just the standard version)
And with a view to wanting to overclock it I have replaced my Corsair H50 with a custom water cooling loop, and well .. temps are not a problem now :)

BUT I can't seem to get it to clock to 4.6Ghz without BSOD'ing
It's odd because when I run Real Temp sensor test (prime95 large FFT test) it will complete test #1 at 100% then test#2 at 88.9% but when it starts test #3 it crashes !
I just can't figure that out.

I have tried putting the voltage up to 1.456 with everything else on auto (I tried to change all the other voltages to a little over the standard setting and that made it even worse)

I did have this issue with my 920 in that it wouldn't clock to anything near what most people are clocking them to, so i'm wondering if it's just my mobo that doesn't like overclocking that much.

Does any one have any tried and tested settings for a P6T with a high end i7 or Xeon (for this era of cpu) or any tips for me ?
Or could it be that this mobo isn't a overclocker ?

Any advise gratefully received.
Cheers
DamoB

I should have mentioned my memory:
12 Gb of Corsair Dominator 1600 xms (not using XMS profile) all 6 slots filled.
 
Last edited:
If I remember right most 920's were maxxing out at around 4.2ghz. I have no idea about xeons but maybe think you are expecting too much from it.
 
Hi pastymuncher - I'm surprised at that seeming as the W3690 is the equivalent to the i7-990X ? which I have read clocks like a mother.

russell664 - I have reset everything from yesterday and gone back to 133BLCK X 32 which is giving me 4.275Ghz on CPU-Z and it's stable so far.
I have upped a few of the voltages by a little, and am going to start to drop them down a bit to see if it stays stable.

With 133x32 my memory is running at exactly what it wants to be from stock.
But i'm not sure whether it would be better to run it in XMP mode ?

And what I still can't get my head round is why it was passing Intel burn test and Linx AND RealTemp sensor test at 100% but then BSOD'ing when dropping to the lower CPU load tests ?

I,m not looking to reach any records with this, and I still want to have features such as Intel VT (as I do a lot with VM's) and speedstep as I do want it to be able to 'relax' when not working hard, and I know that many people say you need to turn these things off for good over-clocks.

What I have read is that having all 6 slots full will put extra strain on the CPU when over-clocking - is this something you guys would agree with ?
SO would I be better off getting 3 x 2Gb sticks of memory (maybe 2000mhz stuff)

Cheers

DamoB
 
*Update*

Hi all,

I went back to defaults and started again, have been trying many settings over the past few days.

I have it at 4428 as reported by CPU-Z
It's very nearly stable, it seems to only fail with Intel Burn Test after about 12 runs, but seems to pass 20-30 runs of LinX, so I reckon I'm nearly there !

Could you guys take a look at my settings below, and tell me if have anything glaringly wrong ?
My Vcore is set to 1.375 and it definitely won't run below that, and from what I have read I don't want to go to 1.4v or am I being over cautious with that ?

Are there any volt tweaks that you would recommend I change to get it stable ?

Memory Profile XMP
CPU Ratio 32
Speedstep Enabled
BCLK Freq 138
PCIE Freq 100
DRAM Freq 1660
UCLK Freq 3320
QPI Link Rate 6641

CPU Voltage 1.375
CPU PLL Votage 1.8 Default Set Manually
QPI/DRAM Core Volt 1.3
IOH Voltage 1.1 Default Set Manually
IOH PCIE Voltage 1.5 Default Set Manually
ICH Voltage 1.1 Default Set Manually
ICH PCIE Voltage 1.5 Default Set Manually

DRAM Bus Voltage 1.66
All other DRAM settings Auto

Load-Line Calibration Enabled
CPU Differential Amp 700mV Set Manually
CPU Clock Skew Auto
CPU Spread Spectrum Disabled
IOH Clock Skew Auto
PCIE Spread Spectrum Auto

Thanks for taking a look, hopefully with your help I can get this overclock stable.

Cheers

Damob
 
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