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Windows 7: BSODS, The continuing story Part 2

07 Aug 2010   #11
Chalky Skipper

Windows 7 ultimate x 64

Hi Zigzag,

Thanks for looking at problem for me.

I took both memory sticks back to store for testing and they confirmed both sticks o.k. . I then run my own test , first, with both sticks and then individually. I used only mobo slots 1 and 3 when testing.

Regards, Chalky

My System SpecsSystem Spec
08 Aug 2010   #12

Windows 7 Professional x64

PC Tools still needs to be removed.

Update your nVidia drivers: Drivers - Download NVIDIA Drivers

Update your Intel Wireless drivers. Check on your computer manufacture's site.
My System SpecsSystem Spec
08 Aug 2010   #13

Windows 7 Ultimate 32 bit

Chalky, Jonathan is right. Win 7 does not need any third party tuneup utilities or tools. It is a new OS, not at all like XP. These third party utilities usually cause far more problems than they resolve. Windows 7 is very good at taking care of itself; it does not need tweaking.
My System SpecsSystem Spec

31 Aug 2010   #14
Chalky Skipper

Windows 7 ultimate x 64

Hi Tuan,Tews, Jonathan,Zigzag3143 and Carttr6,

Just like to give update on my Bsod problems.

You continued to suggest memory as the primary cause so,

after last post I decided to run memtest again and did so with up to 9 passes ,testing sticks together and individually, using channels 1 and 3. The result was still no errors.

At this point I decided to spend some more money and bought 2 new sticks,exactly the same as what I already had. I figured that if it wasn't memory then I could at least increase memory size on system. Using the new sticks has changed the system to the point it actually acts like a computer should. NO CRASHES. I also tried using the old sticks with new ones, however, once again it started to become unstable, things like Internet Explorer shutting down for no reason etc. Reverted to new sticks only and ,once again, success.

I will take old back to store, for the 2nd time, and show them evidence from this forum that they are obviously dud and hope for replacements.

Just like to thank you guys for all the help offered on the problem.


My System SpecsSystem Spec
01 Sep 2010   #15

Windows 7 Professional x64

Thank you for the update!

If you have a few minues some day, would you mind testing your bad RAM sticks with Prime95? Here is a tutorial:

The instructions will be the same, except that you will want to select "Blend".
My System SpecsSystem Spec
05 Sep 2010   #16
Chalky Skipper

Windows 7 ultimate x 64

Hi Jonathan,

As requested I have run a 12 hour Prime95 test on bad sticks and, suprisingly, ( to me ,anyway) did not 'miss a beat'.

When I changed back to these sticks the system crashed twice before it stabilised, so I was surprised when it went the 12 hours without a hitch.

Any further ideas on the problem would be appreciated, however, I think ,even without Prime95 test ,I have enough prior evidence to get replacement ram.( Or at least I hope I have ).

Once again thank you

Regards Chalky
My System SpecsSystem Spec
05 Sep 2010   #17

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64

Did you run the Torture Test - Blend?

Prime95 > Options tab > Torture Test > select Blend, number of test threads 4.

Did you check temperatures during the test?

Use Real Temp to check the CPU core temps.

D/L CPUZ and post the memory and SPD tabs, check the BIOS for the DRAM and QPI voltage.

Have you done any overclocking?
My System SpecsSystem Spec
05 Sep 2010   #18
Chalky Skipper

Windows 7 ultimate x 64

Hi Dave,

Thanks for reply.

Following is info you requested ( or I think it is ).

I used Speedfan with test and the temperatures for 4 cores averaged between 72 and 78 degrees, mainly around 74-75 during the 12 hours.

Used blend test , 4 test threads

DRAM voltage is 1.5, QPI/VTT voltage is 1.100. Both these are set on auto.

Attached are CPU-Z readings of system.

Hope this info ok


My System SpecsSystem Spec
06 Sep 2010   #19

Microsoft Community Contributor Award Recipient

Windows 7 Ult x64 - SP1/ Windows 8 Pro x64

Thanks for the info.

It's better to use the snipping tool and post the picture.

Start button > type 'snipping tool' in the search box > press enter

Select the area you want to copy and save to a convenient place.

How to Post a Screenshot in Seven Forums

This makes it easier for all of us to see the information.

Is your motherboard rev. 1 or 2?
Your BIOS is F3.
Both rev.1&2 are showing current BIOS version as F13, you might want to consider updating the BIOS.
There was a 'Enhanced memory compatibility' listed a few versions back, the BIOS upgrade may help.
This can be risky, doing it wrong can brick your computer, if you read up on it first you should be OK.
Let us know if you have any questions.

Your DRAM voltage should be fine.
You should bump your QPI/VTT voltage to 1.150 and see if this helps the two suspect RAM sticks, if the BSoDs stop your good, if not then bump the QPI/VTT voltage to 1.190 and check for stability (see if it BSoDs). Max QPI/VTT voltage for your rig is 1.200, same as mine, although mine shows a 1.210 option before they are in red font.
This will make the RAM more stable, maybe even the two sticks that caused your BSoDs.
Unless you have returned the two old ones already.
Then, keep this in mind if there are any more BSoDs.

Intel states the max temp for our i5-750 CPU is 72.7c, I've seen a lot of people that run them up to 80c, but I like to keep mine cool.
With my OC at 3.8, it stayed under 70c when running Prime95. I have a 'reasonably priced' (U$30) Cooler Master Hyper 212 Plus CPU cooler.
Just about any CPU cooler will be better than the Intel stock cooler.
Something to think about.

Let us know if you have any questions or if everything is running good with the new RAM sticks.
My System SpecsSystem Spec
06 Sep 2010   #20
Chalky Skipper

Windows 7 ultimate x 64

Hi Dave,

Thank you for your very informative reply to my post.

Firstly, in answer to your question ,my motherboard is rev.1.

I have now boosted my QPI/VTT voltage to 1.150 and will now leave computer switched off for 48 hours, as it seems this is period of inactive time required before it ' spits the dummy'. If this doesn't work will boost to 1.190 and see what happens at that level. For your info mine also shows a 1.210 option. I still have the old sticks and will use those with the increased voltage setting.

I thought mid 70's in prime test was a bit above suggested limits and will certainly look at replacement CPU cooler to improve cooling.

I am a bit reluctant to do a BIOS upgrade,risking,as you say, bricking the computer, however, 'if push comes to shove' I will have a go at it. Hopefully it can be avoided.

I will post my results as soon as I can.

Thanks again


My System SpecsSystem Spec

 BSODS, The continuing story Part 2

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