P55 with i7-870, rando BSOD during cold boot

[idata]

I have just setup a new system at the beginning of September.

I encountered lots of random BSOD - Blue Screen Of Death.

And this happens whenever I startup the system the first time for the day.

I believe this is a so-called "cold boot" issue.

Below are some specs before I proceed to further explain the issue.

My Memory Specs:

CMX4GX3M2A1600C7

Speed Rating: PC3-12800 Tested

Speed: 1600Mhz Size: 4GB Kit (2 x 2GB)

Tested Latency: 7-8-7-20

Tested Voltage: 1.65

Performance Profile: XMP

SPD Speed: 1333Mhz

SPD Latency: 7-7-7-20

My System Spec:

EVGA P55 SLi (132-LF-E655-KR)

EVGA GeForce GTX 460 SuperClocked 768MB (768-P3-1362-KR)

CMX4GX3M2A1600C7 x 2 (Total 4 x 2G = 8GB)

Seasonic M12II-620watt

OS is Windows 7 64-bit Ultimate.

My System settings:

CPU: Default 2.93GHz (133x22) with Intel Speedstep enabled and Intel Turbo Boost enabled.

DRAM: 1600MHz. 7-8-7-20-2T @ 1.65Volt XMP Profile

I was hit by the BSOD in every cold boot. And I did some test on my system to verify if any there were any faulty hardware.

Some Test result:

- individual mem test passed. - dual mem test passed. - dual x 2 mem test passed.

Test done are:

- 25 passes run for IntelBurnTest with MAXIMUM settings, the 4-up passed.

- 30++ passes with Prime95 overnight. With the 4-up.

- 10++ passes with MEMTEST 4.10

But failed with BSOD when cold boot after 10hrs shutdown. It looks like its really a cold boot issue. The system an pass all test with no errors but fails at cold boot. Setting used during the above test: i7-870, 2.93GHz (default 133 x 22) Intel speedstep enabled. Intel Turbo Boost enabled. Corsair RAM at 7-8-7-20 2T with XMP Profile - Auto DRAM Voltage manual @ 1.65v VTT manual @ 1.2v

Vcore mauanl @ 1.2v

Vdroop disabled.

The CPU-Z shows the CPU speed was running at a range of 3.2~3.59GHz with the Intel Turbo Boost enabled.

Witht the Intel Turbo Boost disabled, the speed stays at 2.93GHz.

There may be a chance that the CPU did some OC here as it passed the test, but just don't want to OC during cold boot? Everything works fine after the CPU "warm-up". So, is the an issue with the CPU?

I hope anyone with similar or same issue can advise. thanks.

[idata]

Hello;

The maximum memory voltage supported by the i7-870, is 1.5 volts and the memory that you are using is 1.65 volts, as first recommendation you try memory with a lower voltage

You can find more information on the memory supported for your processor here:

http://download.intel.com/design/processor/datashts/322164.pdf

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