BSOD,Usually playing FSX, ''system encountered an uncorrectable error''

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AdsUK

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May 23, 2014
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4,510
Hey guys.

Just looking for some help please.

Hi there.

I would be so grateful if someone could possibly help me resolve my BSODs.

I have been having them now for a few weeks at least, I had a bad sector on one of my HDDs but i have replaced that with a brand new one.

The BSODs usually happen when playing Microsoft flight simulator X.

Below is a picture of the actual message i get;

2l5on9.jpg


The memory dump gets to 95% and stops, forcing me to manually switch off the computer.

Here are my system specs;
Coolermaster 692 Advanced White gaming tower
-Intel Core i5 2500K 3.3Ghz stock Overclocked to 4.5Ghz (brought as pre made bundle at scan.co.uk, tested etc.)
-Corsair H60 Watercooler
-GByte GA-P67A-D3-B3 MoBo
-8GB, 2x 4GB RAM
-1TB Samsung SATA HDD
-650w NZXT Hale Gold Modular PSU
-1024MB Gainward GTX 560 Ti Phantom.

(All of my drivers are up to date also)

I have used Prime 95, and to start off I ran the ''Small FFTs test'', which does not test the ram much, and all seemed ok.

I then used the ''Blend'' test which is quite intensive on RAM , and after about 2 mins i had a BSOD, the same one i usually get.

Would i 100% put this down to ram , or CPU?

Cheers
 
Solution
notherdude
Well if it worked for three years that tends to suggest the vcore was OK. But if by chance the ambient temperature has gotten high that could push it over the edge. Or maybe the water cooler isn't working quite as well? Three years is a fair amount of time for things to weaken a bit. It can't hurt to up the vcore to known safe levels to see if that helps, assuming your temps stay reasonable and that this doesn't hurt the warranty with whomever made the PC.
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notherdude

notherdude

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RAM is the first place to start. Just test with one stick and then the other. If it BSODs with one you know if it BSODs with both then it could be something else. Not the CPU though, they almost never go bad.

EDIT: as this is the overclocking forum I will assume you are overclocked so it is also possible you have simply gone a tad too far.
 
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AdsUK

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May 23, 2014
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Right, have tested both the rams in and out, and its crashed both times still.

On CPUZ my voltage is 1.176V, does this tell you anything?

The Core speed is 4511.85 MHz. the Bus speed is 100.26MHz.
 
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Y

Y0GI

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Vcore of 1.176 v. is kinda low. Is that at idle or under load?

Yogi

 
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AdsUK

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Thats just at idle,

I have selected the stock cpu speed, and re running the prime95 test as we speak and so far so good.

Scan have a 3 year return to base warrenty on the overclocked bundles, so If this test stays stable, i shall hope to send it back to them as it is obviously the OC Bundle which is causing the BSOD... ???


Cheers
 
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Y

Y0GI

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I would say yes, it is something in the OC that is causing the instability IF it passes Prime95 without the OC.

Yogi
 
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AdsUK

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Do you think the vcore is too low, and possibly causing the BSOD? At 1.176V on a 4.5GHz i5 2500k?

I brought the over clocked bundle in 2011 so it runs out of warranty this August, so ill hopefully be able to take it back for a repair.

Cheers

 
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notherdude

notherdude

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Well if it worked for three years that tends to suggest the vcore was OK. But if by chance the ambient temperature has gotten high that could push it over the edge. Or maybe the water cooler isn't working quite as well? Three years is a fair amount of time for things to weaken a bit. It can't hurt to up the vcore to known safe levels to see if that helps, assuming your temps stay reasonable and that this doesn't hurt the warranty with whomever made the PC.
 
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Solution
A

AdsUK

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May 23, 2014
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Talking about the water cooler, do i need to do any maintenance on it? Its a CORSAIR H60 water cooler.

What software should i check to monitor the temps, realtemp? Should I look at the temps whilst gaming?

During some tests it has got to around 60oc and perhaps a tad higher, but im lead to believe this temp is ok really.
 
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4Ryan6

4Ryan6

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Your 2500K overclock is not stable and there's probably not a thing wrong with your memory which should be running a max speed of 1333mhz or else you are overclocking your CPU memory controller as well, Most using fixed voltage were running their 2500Ks somewhere between 1.300 ~ 1.330, mine was rock solid at 1.325v at 45X x 100mhz or 4500mhz clock.

Apparently you purchased a pre-overclocked machine which means they were as far on the safe side as they could get and still give you some kind of warranty on the purchase, and by now after all this time your H60 cooler is beginning to fail could be pump, cooling fan, flow restriction etc. because it wasn't the best cooler anyway.

Which is allowing the CPU to get hotter and now you have a host of problems that the original overclock CPU voltage can no longer remain stable, if it ever actually was 100% stable at that voltage in the first place?

If you do not supply enough voltage to the CPU, you will not be stable, it requires a certain level to stabilize a 45X multiplier and there's no getting around that, but it has to stay cool enough as well!
 
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AdsUK

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May 23, 2014
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Hi Ryan

Thanks for your reply.

What cooler would you recommend for me to change to then please? I guess i should do this before i send it back to the place i brought it from under warranty.

Cheers
 
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4Ryan6

4Ryan6

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What warranty did you actually have from them?

And how long has it been since you actually bought it?

And what did the warranty actually cover?

If you are under any warranty at all don't change a thing until you talk with them regarding these issues.

 
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AdsUK

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May 23, 2014
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Ryan,

The warrenty states;

''Scan 3XS overclocked bundles:
All Scan 3XS overclocked bundles are covered by a 3 year Return to Base warranty. This means that we cover parts and labour for the motherboard, RAM and CPU cooler provided in the bundle during this time.''

I purchased the bundle on 11th August 2011, so runs out in 2 months time.

Cheers
 
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4Ryan6

4Ryan6

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Then Thankfully you are still covered, Make them fix the problem for you, and keep detailed records to back your claim.

That's fantastic News! :)

 
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AdsUK

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Well, have spoke with scan and they say the 3 year warranty only covers faults parts and not their over clocking. So basically ive got to sort it myself.

:(
 
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4Ryan6

4Ryan6

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At least get them to replace the H60 cooler so when it completely fails you don't have to do it yourself!

 
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Y

Y0GI

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The program "HW Monitor" has the ability to log voltages and temperatures as you operate your computer: http://www.cpuid.com/softwares/hwmonitor.html
I would install this program and set it up to log your data, then start FSX and run both while a problem develops. In this way, you can get a better idea of whether your cooling is inadequate, which would prove that the H60 is defective, or the cooling is OK but you now have an unstable OC for other reasons, like not enough Vcore.

Yogi
 
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