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1st time new build - Help Memory BSOD

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August 8, 2011 5:26:22 PM

Hi,

I decided to have a go at building my own PC after searching the net on how to do it, as i was having a few problems with the PC i already had. I wanted to do it as cheaply as possible and only wanted a slight upgrade.

My new build specs are.

Windows 7 Home Premium 64 bit Edition
Intel Core 2 Quad Q8200 (from my old PC) I re-applied AS5 Paste
Standard Cooler Master Heatsink and Fan (from my old PC)
ASUS P5Q SE Motherboard (updated to latest Bios 1005) (Brought 2nd hand from a working PC)
OCZ2G8004GK (2x2GB) (Brought 2nd hand from a working PC)
Nvidia GT 240 (Brought 2nd hand from a working PC) (i've installed latest drivers)
670GB Sata Hard drive (from my old PC) (i formatted the hard drive with Dban before i took apart my old PC)
Lite on DL DVD RW (from my old PC)
Hiper Type M 670w PSU (Brought 2nd hand from a working PC)
Envizage E-6691 Black Silver ATX Gaming PC Tower Case (new from ebay)

Basically i put it all together and started to install Windows 7. I then encountered my 1st problem for some reason it was taking ages to install and kept freezing so took out the OCZ2G8004GK memory and put in 2GB of standard oem samsung memory that was in my old PC, I also had to go into Bios and disable the floppy drive (i found this fix on the net) once i had done this the install took about 20-30 mins to complete.

Once windows had booted up it looked like everthing was working fine so i put the OCZ2G8004GK memory back in and started to install my programs and started downloading windows updates. I didnt encounter any problems while doing this.

I then encountered my 2nd problem which is still my main problem.
Every now and then my PC randomly freezes to a blue screen BSOD referring to memory (it does this with the OCZ2G8004GK memory and the standard samsung memory so i dont think its faulty ram. It mainly does it when im converting video for my ipad and when playing games like assassins creed.
I have searched the net for hours looking for things that it could be. I have tried the ram in different slots and its still the same. I have changed the timings in Bios for the OCZ2G8004GK memory to 5-5-5-18 and tried different voltage from 1.8-2.1 and its still the same.

When i run Prime95 with OCZ2G8004GK memory and the standard samsung memory it says FATAL ERROR: Rounding was 0.5, expected less than 0.4 within about 30-60 seconds.

When i run Prime95 with only 1 single 2GB ram it seems to work ok (only 20 min test) but did say 1 error with the samsung memory.

I have tried running Memtest86 (bootable disk) with OCZ2G8004GK memory and the standard samsung memory but after about 20 seconds the PC just restarts. it then boots Memtest86 again and then restarts again and keeps doing that untill i take the disc out.

If i run Memtest86 with only 1 single 2GB ram it seems to work ok (only 5 min test)

I think it is just a matter of getting my ram stable, but i dont know how.

Please if anybody has any ideas/suggestions to what could be causing my problem they would be greatly appriciated.

Thanks

Andy
August 8, 2011 7:19:36 PM

Looks like you have tried to get the ram stable all ready but try running it at a slower speed and see if that changes things.
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August 8, 2011 7:28:11 PM

Have you any recomendations? 6-6-6-15 maybe? im new to setting timings so im not sure and change from 800 to 677?
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August 9, 2011 1:52:18 PM

I have tried running the ram slower (677) and i still get the same problem.

The BSOD's that i am getting are:

PAGE_FAULT_IN_NONPAGED_AREA

Technical information:

*** STOP: 0x00000050 (0xFFFFF87F9B253E64,0x0000000000000001,0xFFFFF8800FA19DC5,0x0000000000000005)

*** nvlddmkm.sys - Address FFFFF8800FA19DC5 base at FFFFF8800F21D000, DateStamp 4dd73a68

and:

DRIVER_IRQL_NOT_LESS_OR_EQUAL

*** STOP: 0x000000D1 (0xFFFFFA807546F548,0x0000000000000002,0x0000000000000000,0xFFFFF88004636FBC)

*** USBPORT.SYS - Address FFFFF88004636FBC base at FFFFF88004624000, DateStamp 4d8c0c08

Does anybody know what these BSOD codes mean?

Also I Just read on another forum that if your motherboard has bent pins that this can cause BSOD's?

My motherboard (socket 775) did have about 3-4 very slight bent pins on the right hand side of the chip (1st 3 lines). I very gently put them back into place, you can see that the pins were once bent but they do look like they have aligned quite well. Could this be causing my BSOD's as i thought if the pins didn't have a good connection the motherboard wouldn't work at all?
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August 9, 2011 1:57:56 PM

That bsod error "nvlddmkm.sys" isn't a ram problem. It's your graphic card.
Check the card for convex caps


Normal cap: that small one on the right, notice the flat surface.
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August 9, 2011 2:06:01 PM

Bent pins on your cpu socket could cause all sorts of problems including what you are complaining about. And your pc can certainly function with damaged or broken pins but sooner or later you would start to notice problems. One thing you can try regarding your memory settings is to set the bios to its default settings and set any memory configuration options to auto & then see if the bsods still occur.
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August 9, 2011 2:29:42 PM

lp231 said:
That bsod error "nvlddmkm.sys" isn't a ram problem. It's your graphic card.
Check the card for convex caps
]http://img718.imageshack.us/img718/1057/dsc0066jqm.jpg

Normal cap: that small one on the right, notice the flat surface.


Hi sorry the link to the image isnt working what do you mean by "convex caps" i have no idea how to check those?

Could you please explain, a little more

Thankyou for helping
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August 9, 2011 2:32:29 PM

finn281175 said:
Bent pins on your cpu socket could cause all sorts of problems including what you are complaining about. And your pc can certainly function with damaged or broken pins but sooner or later you would start to notice problems. One thing you can try regarding your memory settings is to set the bios to its default settings and set any memory configuration options to auto & then see if the bsods still occur.


None of the pins are broken and they were only very slightly bent. They got caught on a bit of cloth wen i was wiping away a bit of thermal paste from a previous user.

I put the pins back in place as good as i could and now you can only just about tell that they have been moved.

Could this still cause graphic BSOD's?
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August 9, 2011 3:49:03 PM

So after browsing the net for another couple of hours, i have found this "fix" for my BSOD:

*** nvlddmkm.sys - Address FFFFF8800FA19DC5 base at FFFFF8800F21D000, DateStamp 4dd73a68

Basically the default timeout that windows waits for the GPU to respond is 2 seconds. If it doesn't respond in that time windows thinks it's hung and resets the graphics stack which is probably part of what makes the program hang and die to the desktop/BSOD. There is a reg hack method to increase it to 5 seconds which might be enough to let the program figure out what's going on and recover and carry on.

To do this i need to increase TDR-Timeout-value to 5 seconds(max possible) from hidden defaultvalue 2sec

Start 'regedit'
go to:HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Con trol\GraphicsDrivers
rightclick 'new' .. dword .. enter name: "TdrDelay" ..doubleklick.. enter hex-value: "00000005"

Does this sound like a good fix? i cannot try it untill 11pm tonight as i am now at work.

Or could this simply be a driver issue with the GT 240 (i have downloaded and installed the most recent driver though)
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August 9, 2011 4:00:42 PM

acoopermufc said:
Hi sorry the link to the image isnt working what do you mean by "convex caps" i have no idea how to check those?

Could you please explain, a little more

Thankyou for helping


The image is working, but if it doesn't then...
Think of it like those instant popcorn pans you get at the market. Before cooking on the stove, the surface is flat.
Then after a while the surface will start to expand until it can't hold it anymore and popcorn files out.
Same with a capacitor, a good one will have a flat surface, bad ones don't.

Can you see the image below? If so, the small one on the bottom right is a good cap. Notice the flat surface.


You may also want to check the video car to see they are any dust that may block air flow. Use a brush to clean it out
if necessary.
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August 9, 2011 4:12:53 PM

I think the image is being blocked (im at work on works PC) so i'll have a look when i get back home. Thanks for your help
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August 18, 2011 10:05:55 AM

After hours of searching the net, and testing loads of different "fixes" i have found one way of getting my PC stable.

Basically 4GB wont run in dual channel mode.

I have changed my ram to KVR800D2N5​2G (2x2GB) as this ram is recommended by my motherboard (P5Q SE).

I tried it in dual channel and was having the same problems (Random BSODs)

So i tried the same KVR800D2N5​2G (2x2GB) in single channel and i haven't had a problem since?

I have run Prime95 for over 3 hours with no problems, where as with dual channel i would get a BSOD within 5 minutes. And i can now play games without crashes.

I would really like to run in dual channel mode and if anybody could help me with this i would really apreciate it.

Thanks

Andy
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August 20, 2011 5:09:46 PM

Did you try raising the voltage on the ram a little bit for dual channel? (0.2volts over specified is usually safe.)
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August 21, 2011 10:27:05 AM

Yes I have tried raising the voltage and I still get bsods in dual channel mode.
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!