BSOD I may have fixed it! so far so good, read what was happening to me.

leffreymays44

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Sep 23, 2014
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Hi I have had the BSOD for a month now and have had maybe 10 BSOD's all with pretty much different errors.

I had minidump logs pointing to
NVLDDMKM which is Nvidia
ntoskrnl.exe+75bc0
dxgmms1.sys

this computeris an HP Pavilion a6655f with a m2n68-la (narra3) motherboard and had the phenom x4 9150e 1.8 ghz processor and this machine had 5gb ram installed from factory
and this machine had the onboard nvidia geoforce 6150se nforce 430 video,

the problems started when i did the upgrades, I did a clean install from vista to windows 7, then I installed 8 gb ram in 4- 2gb sticks, then I installed an evga geoforce 210 graphics card and a pci slot fan and last I installed a pheonm quad core agena am2+ up to 9600+ upto 95 watts

I wanted to upgrade this pc a little just to make it functional, I am also in the planning stages of building my first pc so I wasn't trying to throwe too much money in this dinosaur.

I started having the BSOD after all the installs of the new hardware,
first I ran memtest for 30 hours and had 8 passes clean no errors.
then I pulled the 210 geoforce video card out and uninstalled the drivers and activated the original onboard video and was still getting the blue screens. I sold my old processor so I was unable to put it backin the machine so i left that untouched.

so I ended up reinstalling windows 7 - 3 times and updating all windows updates about 200 of them total and still received a BSOD, for the dxgmms1 at which is direct x 11 installed with latest drivers, so whatever I am pretty ticked by now!

the bottom line is now I decided to remove the 4- unbranded generic ram sticks I bought from china which had hynix chips on it and reinstlled the original ram and I have not had a bSOD since, its still early to tell but I have been running 2 tabs open playing youtube videos full screen hd 1080p and surfing the net and doing other stuff really trying to work this pc and it would have crashed by now i am sure but it is running just fine and no bsod.

so I an guessing it was the ram i bought from china off ebay, although it passed 8 passes on memtest86 idunno how to explain this but atleast my system is stable.

anyone have input on this lets here it.
thx
jeff
 
not likely the RAM, it is more likely that your old BIOS had incorrect primary or secondary default timing settings for the new RAM.
most of the time a BIOS upgrade would fix this but on a old system you would not get the a current BIOS upgrade.

So, you would have to locate and set the primary and secondary timings in your BIOS manually if the BIOS would let your do that.
I have found that the cheaper RAM requires 2 command cycles rather than 1 command cycles that most BIOS set as a default.

Also, sometimes people power off the machine (they should) and put in the new RAM and then boot windows.
Sometimes the BIOS does not detect the hardware change and does not rebuild the database of hardware it collects so it uses the old values of the old RAM.
in this case you want to go to the BIOS and disable and reenable any hardware device on the system. It will force the BIOS to check the hardware and rebuilt the database it uses to configure the settings and sends the info to windows during the boot process.

Or your memory could have been bad. (just can not say for sure)
 

leffreymays44

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Sep 23, 2014
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4,630
I tried to locate a bios upgrade for this pc but cant seem to find one, I have tried both the hp web sight for this pc and the motherboard websight both show no bios upgrade options, I did try just installing one of the new ram sticks in the machine at a time that was 4 - 2gb sticks and rebooted the machine with each stick by itself and the machine booted and ran fine with all.

what I have in th epc now is thre of the new 2gb cheap rams and one of the 2gb old rams sticks for a total of 8 gb and the machine shows 8 and I have not had any blue screens, I don't no what the deal is but I figure if I put that fourth cheap 2gb ram in with the other three it might start acting up again.

but it does seem to be issues with bios and ram settings im sure, but I am not an expert at anything concerning pc's just what makes since at this point.

it's running great now and thats fine with me while I am building a new up to date gaming rig so to speak. I have no answers for the phenomenon!