BSOD STOP D1 - pci.sys

[IHTurbo]

Hi All,

This problem started in August 2019 and has happened randomly ever since.


- 22x BSOD STOP D1 Errors, ALL in pci.sys.
---
- 4x BSOD D1 Errors in hal.dll.
- Also 8x other misc BSOD Errors, as per below:-
1- BSOD 7e + mrcbt.sys
2- BSOD 3b + ntoskrnl.exe
3- BSOD + msahci.sys
4- BSOD 9f + nvlddmkm.sys
5- BSOD 50 + ntoskrnl.exe
6- BSOD 0a + fltsrv.sys
7- BSOD 7e + mrcbt.sys
8- BSOD 9f + ntoskrnl.exe
---

Only the 22x BSOD STOP D1 in pci.sy are relevant.

I have attached the latest Dump file from earlier today (as a .ZIP), but I can upload many more, if required.
### 012021-20919-01.zip

I have attempted many fixes, after much research, but nothing has worked.

And it shouldn't happen in the this Forum, but just in case; NO, I do NOT want to upgrade to Win10!

I have used Nirsoft's excellent BlueScreenViewer, but it has inly confirmed that the issues seems to be in pci.sys.

I can often trigger the BSOD by running a game; namely Rise of Nations or Age of Mythology.
Also sometimes when the PC has not been Rebvooted for a while, but this is only a perception.
(Usually, I just "Sleep" the PC.)

I also sometimes have the BSOD when doing something graphical, even if not taxing for the system/graphics card, like browsing in Firefox.
And BTW, I have tried 2 different graphics cards, individually, of the same specs.

From research I have done on the internet for this problem, I have collected and tried, the following Steps:-

* # DONE # STEP 1- Update Your PC Device Drivers
*- AMD Chipset Drivers Installed (Latest @ 11/Jan/21)
*- AMD Mobo Drivers Installed
*- Various AMD Mobo Utilities Installed
---
*- Nvidia Drivers Installed - v391.35
---
All Drivers are up-ro-date, except Realtek Audio Driver, which I will do tomorrow, but do not think is really the cause.
---
- Cannot guarantee that pci.sys (offending Driver) was updated by any of the above Drivers.


- P.S. I would love to know WHERE pci.sys lives; a constituent of which Driver or package?
If anyone know what "package" PCI.SYS comes in/with, it would be much appreciated.
AMD Chipset Drivers, or Nvidia Drivers, or Windows Drivers, or with Windows itself?

---

* # DONE # STEP 2- Repair Registry Entries Associated with Applications, SDK/DDK
*- Win7 SDK Downloaded
---
*- Win7 SDK Installed
---
- No KNOWN corrupt Registry Entries.
- Malwarebytes (MBAM) Premium HAS cleaned some apparently infected Registry Entries, but this was
alongside an MBAM AI False Positive, so I am a little sceptical.
- After consulting MBAM Support, the MBAM AI WAS proven to be a
False Positive, on Palm Desktop.
---
* # DONE # STEP 3- Conduct a Full Malware Scan of Your PC
- I use one entire partition (F for ALL of my Downloads, not just a Folder.
ALL Downloads stay on this partition for a MINIMUM of at least 2 weeks,
but it is usually MUCH longer, prior to installing or being
moved to my default Data partitions.
- I run Kaspersky Internet Security (KIS) and run a Quick Scan every week.
I have significantly modified the Quick scan to scan much more than
default.
- KIS auto-Updates itself at least once a day.
- I also run Malwarebytes (MBAM) Premium, with all the Protection settings on,
except for the Ransomware Protection, as it collides with KIS, and
causes crashes.
- MBAM runs a Scan every day, after Updating itself.
- I should also mention that I use Spybot Anti-Beacon paid-for version, for both
Security and Privacy.
- I also run other various Rootkit scanners from time to time.
---
x # NOGO # STEP 4- Utilize Windows System Restore to "Undo" Recent System Changes
### ISSUES EXPERIENCED OVER A LONG PERIOD OF TIME
### SYS RESTORE HAS NEVER WORKED SUCCESSFULLY FOR ME; I PREFER RESTORES.
---
x # NOGO # STEP 5- Uninstall Recently-Installed Program Associated with Applications,
SDK/DDK / Pci.sys
### TRIED TO NO AVAIL, SO REINSTALLED.
### ALSO, NOT APPLICABLE - ISSUES EXPERIENCED OVER A LONG PERIOD OF TIME
---

* # DONE # STEP 6- Run Windows System File Checker ("sfc /scannow")
### NO INTEGRITY ISSUES FOUND
### OVER MULTIPLE RUNS, OVER TIME.
---

* # IN-PROG # STEP 7- Install All Available Windows Updates
x+- NO mandatory Windows Updates Available
*- Optional Windows Updates Downloaded
*- Windows 7 Quality Rollups
*- .NET Quality Rollups
### SYSTEMS IS AS UP-TO-DATE AS A WIN7 SYSTEM CAN BE.
---

* # DONE # STEP 8- Check for Hard Drive Corruption ("chkdsk /f")
---
- CHKDSK /f /r ran cleanly on ALL discs, including the system disc.
- So did WD Data Lifeguard.
### I HAVE RUN A CHKDSK /F /R ON ALL MY 6X HDDs/SSDs.
### I ALSO DO THIS ON AN ONGOING BASIS, FOR MAINTENANCE.
---
* # DONE # STEP 9- Test Your Memory (RAM) for Corruption
I have now run the Memory Diagnostic overnight, with multiple Runs and NO fails.
---
x # NOGO # STEP 10- Perform a Clean Installation of Windows
### WIN7 INSTALL ON RYZEN TOO COMPLICATED TO CONSIDER REINSTALL AT THIS TIME.
### ALSO, NEED WIN7 ISO WITH USB 3 DRIVERS STREAMED-IN 1ST & HAVE HAD VARIOUS
### ISSUES WITH ACHIEVEING THIS.
---
### NOT GOING TO HAPPEN - TOO MANY
### ISSUES WITH 1ST WIN7 INSTALL.
---
* # DONE # STEP 11- Download & Run DM Log Collector
- ### DM Log Collector Report = SYS1R6B5-20_01_21_170318_89.zip (1.3 MB).
---
+ # PARTIALLY # STEP 12 - RUN Driver Verifier

- I have attempted to Run Driver Verifier twice, but both times the PC crashed with
BSOD STOP E6.
- E6 = DRIVER_VERIFIER_DMA_VIOLATION
- This Verifier issue & DMA violation certainly suggests a Driver issue.
- This itself, would suggest Driver corruption.
---
--------------------------------------
- Speccy Report URL = http://speccy.piriform.com/results/tr6KifKm2CjZs5yA1FMNG1U
- This Report is pre-update BIOS from F3
- Since updating the BIOS from F3, the CPU Temperature in Specyy has been
consistently showing ~ +60C higher than Gigabyte SIV & the BIOS.
---
- System Manufacturer
### CUSTOM - BUILT MYSELF
- Exact model number (if laptop, check the label on bottom)
### N/A
- OS - Windows 10, 8.1, 8, 7, or Vista?
### WIN7 PRO SP1 X64
### 6.1.7601 SP1 Build 7601
- What was original installed OS on system?
### THIS IS THE ONLY OS TO HAVE BEEEN INSTALLED
- Is the OS an OEM version (came pre-installed on system) or full retail version

(YOU purchased it from retailer)?
### OEM
- Age of the computer (hardware)
### DEC 2019
- Age of OS installation - and whether you have re-installed the OS
### ORIGINAL, NO REINSTALL.
- Laptop or Desktop computer?
### DESKTOP
- CPU
### SEE SPECCY
- Video Card
### SEE SPECCY
If Desktop please also include:
- MotherBoard
- Power Supply - brand & wattage
### Corsair HX850i PSU - 850W
### Gigabyte X470 Aorus Gaming 7 WiFi
PLUS ### SEE SPECCY
---
--------------------------------------
I have successfully managed to update the BIOS from F3 > F31 > F40 > F50 > F60e, which is the latest BIOS.

And yet, I still managed to force a BSOD D1, by running Age of Mythology, which has
always been one of the most likely causative factors.
---
- In the above Steps, a couple of things bother me.

- The System File Checker (SFC) found no issues, over multiple runs and yet pci.sys
seems always to be the issue.
---
--------------------------------------



I could use some help.


Regards,

IHTurbo

 

[wither 2]

For information, the pci.sys file can be found here- C:\Windows\System32\DriverStore\FileRepository\machine.inf_eee87d92

If you want to replace it, you should first set a system restore point.

Would you run msinfo32, save the file and attach it to a post here?

 

[IHTurbo]

Hi Wither 2,
Thanks for the info re: pci.sys, but I meant more, FROM where does it come; Chipset Drivers, Nvidia Drivers, Windows Drivers, etc.
I.E. What is the SOURCE point for the pci.sys file?


Every time I have run System File Checker (SFC), it has not shown any problems, so it doesn't seem like pci.sys is corrupt, unless it is not considered a "system" file.



I have run msinfo32 & have uploaded the report.

 

[torchwood]

Hi IHT,

based purely on the MSinfo report.

The IHTurbo driver appears to be biggest problem, multiple failures.
Are you overclocking?
Please run KB947821, it could shed light on why system restore is failing, and repair it or any other system errors.


https://www.microsoft.com/en-ie/download/details.aspx?id=20858

Notes,
It is NOT advisable to run 2 AV's on any system, likely cause a race condition, ie thier both fighting for the same resource.
PCI these are SYSTEM drivers that allocate resources to any PNP device.
so check your Bus controllers.
any reason why EasyBCD is installed.
Windows Update is running - turn it off.
How have you set up your page file, on C with standard defaults.


Roy

 

[IHTurbo]

Hi torchwood,


Thanks for the response.


By "IHTurbo" Driver, I assume you meant pci.sys.


---

Are you overclocking?
### NO, I AM NOT OVERCLOCKING.

Please run KB947821, it could shed light on why system restore is failing, and repair it or any other system errors.
### I WILL TRY THIS & LET YOU KNOW THE RESULTS.

It is NOT advisable to run 2 AV's on any system, likely cause a race condition, ie thier both fighting for the same resource.
### YES, I AM AWARE OF POTENTIAL ISSUES.
### I ALWAYS INSTALL KIS 1ST & THEN MBAM.
### I HAD TO TURN MBAM'S RANSOMWARE PROTECTION OFF, FOR THE REASONS

### YOU HAVE STATED .
### IN GENERAL, PROVIDING KIS IS INSTALLED, THEY SEEM TO RUN OK TOGETHER.
### I HAVE BEEN RUNNING THIS WAY FOR A NUMBER OF YEARS, W/O ANY MAJOR ISSUES.
### THIS INCLUDED ON MY PREVIOUS SYSTEM H/W (NO BSOD D1'S).

PCI these are SYSTEM drivers that allocate resources to any PNP device.
so check your Bus controllers.
### CHK FOR WHAT, EXACTLY?
### BY SYSTEM DRIVERS, DO YOU MEAN COME WITH WIN7?
### WHERE IS THE SOURCE? HOW CAN I UPDATE IT, SPECIFICALLY, & ONLY IT?

any reason why EasyBCD is installed.
### YES, I WAS SWITCHING FROM A 2.5IN SATA SSD (SM 850 PRO) TO NVME M.2 SSD
### (SM 970 EVO) & THIS REQUIRED BCD UPDATES; EASIER WITH EASYBCD.

Windows Update is running - turn it off.
### WHY, EXACTLY? I ONLY HAVE IT ON IN CASE MS PUTS OUT AN EMERGENCY W7

### SECURITY BUG.
### UNLIKELY, I KNOW, BUT WHAT HARM?

---

 

[IHTurbo]

torchwood,


I also forgot to add, it is not that "system restore is failing" so much, just that over the years, I have never found it to really work that well, on any O/S, on any H/W. Possibly it is the way I have configured it, but just never had much luck with it.
I still run a System Restore prior (& Post) any major S/W or H/W installs or on an irregular basis.
Just never found the Restore to be that useful. It is why I take lots of different Backups, on a daily Basis.



It has always been the same with Sleeping the PC, until this H/W & O/S combo. I just never had any luck with that, either.

It now works really well & previously (same H/W), I had issues with a cheap Silverstone RAID card I had installed, which definnitely caused the problem.
Sleep worked fine after I pulled the RAID card & Returned it. I now have an Adaptec 8885Q RAID card to be installed. NOT a cheap one!

 

[wither 2]

Above, and here- BSOD STOP D1 - pci.sys in Win7 - Windows Crashes and Blue Screen of Death (BSOD) Help and Support
you mention that this error occurs when running the game. Are you running it from the Clonedrive?

Also, the driver you're using for the GTX 560TI seems to be a Win 10 driver. I also have that card and the GEForce experience reports the latest driver is 365.19. I'm using an earlier version than that because NVIDIA discontinued supporting hardware acceleration in their drivers a couple of years ago for all cards prior to the GTX 600 series

 

[IHTurbo]

wither 2
Yes, you are correct, that entry on Bleeping Computer IS my Post also.
Clever experts in 2 locations are better than 1 & I don't really trust a lot of technical "support" sites, they are a bit "frilly".
Bleeping Computer & SevenForums are 2 of the 3.
I am still sounding out SuperUser.

I am not running Age of Mythology from the Clonedrive.
At the moment, Clonedrive is installed as a placeholder, for future use.
I have had so many & varied tasks to bring the PC up-to-date and to fix various issues, that I haven't got around to config Clonedrive.

Age of Mythology, Rise of Nations & Rise of Legends all have issues. AOM is only a Trial version, so no need for Clonedrive or CD.
I use all of these as a quick brain-fresher, to clear my mind.
Rise of Legends won't even start. It WILL run, but just sits there in Task mgr, in Processes and never actually STARTS.
I have tried it a number of times and left it to run for a loooong time (hours), but it never actually starts.
No error message, just cannot be played, like something is blocking it from running.
Rise of Nations usually dies with an Exception shortly after starting, pretty much every time.
I CAN play F.E.A.R., directly from the CD, but I have to acrtually PLAY it from the CD. As in, Run it from the CD.
Just running the game from disc & expecting it to recognise the FEAR CD & start rarely ever works.

Altough the BSOD D1's are not exclusive to these games, it IS one way to force a D1, more often than not.
Like I have said previously, I HAVE had them when merely browsing the net, which is why I thought visuals were involved.

The driver I am using for the GTX 560TI is verr definitely NOT a Win 10 driver.
The driver I am using came from this file:- 391.35-desktop-win8-win7-64bit-international-whql.exe
I have tagged the driver folder as:- FINAL (v391.35-Win7-x64~560Ti~FINAL).
I can't remember specifically why this is final, but it MAY be because of the removal of hardware acceleration support.
I will have a note on it somewhere & will try to find it.
I get my Nvidia drivers via the non-install tool on the Nvidia UK website.
I randomly check from time to time.

I have issues with a number of games, I guess because they are older.
They DID run on Win7 on my previous H/W though.

Given the problems I had initally getting Win7 running on this H/W, I would REALLY hate to have to try a reinstall.

Any more specific questions, please feel free to ask.

 

[IHTurbo]

FYI, I have successfully managed to update the BIOS from F3 > F31 > F40 > F50 > F60e, which is the latest BIOS.
Also, all Drivers are now up-ro-date.

Does anyone know what "package" PCI.SYS comes in/with?
I have been told it is a System Driver. Does that mean it comes included in Win7 & therefore cannot be updated individually?

Or, with AMD Chipset Drivers, or Nvidia Drivers, etc?

 

[wither 2]

It is a Windows driver installed and updated by Windows. That was noted in your thread in the other forum.

It doesn't look like the NVIDIA driver you have (as shown in the text file) is for your system as mentioned here- NVIDIA DRIVERS GeForce Game Ready Driver WHQL unless you have a Notebook. Also, the 560 TI is not listed there as supported with this driver. In the text file you provided, it says this- 23.21.13.9135- is the driver you have installed. Best I can find out, this is a Win 10 driver. There is a driver with this designation for Win 7 but it has an earlier date than that shown in the text file and I don't think it's for your card. According to NVIDIA, the latest driver for your card is the 391.35- Official GeForce Drivers | NVIDIA. Since the BSOD you're getting implies a driver issue and you can't start some of your games, I'd uninstall your current driver and install the 391.35 from the NVIDIA site. I don't know where the driver you say you have came from.

As I mentioned above, NVIDIA stopped supporting hardware acceleration for cards earlier than the GTX 600 series several years ago. I think they did that after the 338 driver (I'm going by memory here). In other words I don't think it's available in the 344.75.

 

[IHTurbo]

wither 2

"It is a Windows driver installed and updated by Windows. That was noted in your thread in the other forum."
Yes, I THOUGHT that that's what system driver meant, but I had to clarify for specificity's sake.

Yes, 23.21.13.9135- IS the driver I have installed.
Refer Attachment "$20210124-jan~Graphics_Driver_Dtls.jpg".
If I DO have the driver installed for Win10, that would explain a lot.
However, I thought Install pkgs checked for compatability, O/S, etc?
From where are you picking up on mine being for Win10?
I have checked the .TXT files and some of the .INF files & cannot find a reference to Win10, only "Windows NT".

I downloaded the new driver again, from where I usually do, & will dutifully install it (after removing current), but everything I see in Device Mgr points to all being OK; no yellow "!" marks, etc.
Also, the graphics card is recognised accurately & is listed as the correct card.
For new driver details, SEE "$20210124-jan~Nvidia_Drvr_Dwnld-v391.35-#01.jpg"
& "$20210124-jan~Nvidia_Drvr_Dwnld-v391.35-#02.jpg"

Doing a Compare of the 2 pkgs with Beyond Compare ($20210124-jan~Nvidia_Drvr_COMPARE-Old_vs_New.jpg) shows all the same details.
The file sizes are exactly the same, only the file dates are different.
The file name really says it all, unless Nvidia have made a HUGE stuffup, which has gone unnoticed for 2 YEARS.

I will let you know how the install goes, and the after effects, if any.

- URL = Download Drivers | NVIDIA


Now what exactly will be the effect of NO H/W acceleration?
It seems to me that, for playing games, this is exactly what a graphics card is for, apart from displaying the game in the 1st place, if it doesn't do that then the power of the card is rendered impotent; a 1080T Ti will perform no better than a 560 Ti.

Is that not the case?
Also, I suppose, is it better to have H/W acceleration & old drivers or the latest driver & no H/W acceleration?

I went to the USA URL you mentioned & the details are VERY different compared with the UK site.
The RELEASE HIGHLIGHTS & the ADDITIONAL INFORMATION show completely different information to the same tabs on the UK site.
Also, the 560 is not mentioned at all. All the cards seem to be Notebook-based.

ALL the details above the tabs are exactly the same; Version, Release Date,
Operating System and File Size.
The only detail that is different is the Language: English (UK), instead of
English (US).
This is the main reason I use the UK sites, in all my S/W, if I can.

 

[wither 2]

If you had a 1080Ti, you could have hardware acceleration. As I said, they discontinued it for all cards prior to the GTX 600 series. If you want it for your card, then you would need to use an older driver. I'm using 327.23 but I think you could use the 337.88 and still get the hardware acceleration. By the way, AMD did a similar thing for some of it's cards about the same time as NVIDIA.

I was using this as a guide in regards to Win 10 drivers- Download NVIDIA NVS 315 Graphics Driver 23.21.13.9135 for Windows 10

As I mentioned, there is a Win 7 option for that driver but the driver is not for the 560.

I don't know what the technical differences are between the US and UK 391 driver but I would think you can use the UK one.

 

[IHTurbo]

Trust Softpedia to get it wrong.
I have never liked nor trusted Softpedia, myself.
The Win10 discrepancy seems like it is not an Nvidia issue, but a Softpedia issue.

What would be the effect of lack of H/W acceleration?
I imagine it would be a drop in performance, but would it be a minor drop or a major drop? Any personal thoughts or observations?

The only reason I have not replaced the card is:"if it ain't broke, don't fix it".
So far I have had no issue with the card playing any game I have tried, at the highest, or close to highest settings.
Having said that, I have pretty much given up on buying new games, as the last 3 I bought, I've only been able to run 1 (Far Cry 4), and that was severely limited by a release-day Bug of epic proportions, making it unplayable in some instances.
The other 2 I haven't been able to get running due to "game management" S/W bugs, which have completely stopped me from running them at all. I hate "game management" S/W; it adds nothing of value to the game for ME and blocks me from playing them.
I had a lot of the same problems with Uplay when it first came out & was required.
So far, the games companies Support have been less than interested, so I gave up on contacting, due to far more important PC considerations.

Any particular reason you use the 327.23 over the 337.88?
Is it just because you haven't given the 337.88 a try yet?

The driver sizes for the UK vs US are the same, but that may not necessarily mean
much.
It does SUGGEST however, that the packages are the same.
All the accompanying info in the 3 tabs is VERY different though, misleading different.
THIS is an Nvidia issue. They should at least be consistent.

As I said previously, "If I DO have the driver installed for Win10, that would explain a lot", but it would now seem that this is definitely not the case, so where can we go from here?
Even thought the H/W was DESIGNED for Win10, surely it is backward-compatible, if there is a suitable Win7 driver for the H/W?
From a programming point of view, I do not really see why Win7 itself should be causing this problem, just because it is on new H/W.

Does anyone know what pci.sys actually DOES?
Torchwood said previously, "PCI these are SYSTEM drivers that allocate resources to any PNP device. so check your Bus controllers."
I ask again, check them for WHAT exactly?
There are no issues listed anywhere in Device Manager, except for a Network Controller, which I believe is the on-mobo Wi-Fi controller, for which there are only Win10 drivers available.
It was not Disabled, just dormant, w/O drivers, so I now have Disabled it, in the hope that this will do some good.

Also, I ran the Win7 System Update Readiness Tool (KB947821) yesterday.
It seemed to run successfully and no error messages were produced.
I could not find a Report of any kind, in the more obvious places.
Is it supposed to create a report? Or only if it finds a problem?


BTW, I never answered the much earlier question re: my Pagefile.
FYI, my pagefile resides on the C: drive, as per normal, which is an M.2 NVME SSD.
I run the pagefile.sys file at its maximum possible size, all the time, of 24,492 MB.
It's initial & maximum size is the same, so Windows never has to play around with it, as I believe this wastes Resources, both in Windows, and in HDD (SSD) access.
As I have a 500 GB SSD, the size of 23.9 GB is not really an issue.

I have attached images of the particulars.

 

[wither 2]

I'm using the 327 driver because I had to reinstall the OS a couple of years ago and the only driver I had downloaded and saved was that one before the reinstall. I previously had the 337 driver installed. I had never installed a driver later than that.

Whether or not hardware acceleration is used (when available) depends on the software application you're using. I'd be getting way out on a limb to discuss it in detail. Needless to say, if the application needs to use it when performing some computation, then the operation would be quicker.

Have you installed the 391 driver yet?

 

[IHTurbo]

Yes, I pretty much thought that that's what the lack of H/W acceleration would mean.

No, I have not installed the new driver yet.
This is because, now that we have determined that I have the correct Win7 Driver, it also turns out it IS the v391.35!
The Driver version number from Device Mgr properties should have dropped the clue for me:- 23.21.13.9135.
The file pkg I installed the current driver from is dated 23/Aug/18, & as stated previously the file is EXACTLY the same size as the new driver, which leads me to suspect that they are one & the exact same driver.
I think that is why I listed it as "FINAL", as I don't think the 560 Ti is included at all in newer Driver pkgs.


This afternoon I have been reading a lot about KB976264; the Win7 Application Compatibility Update.
This seems to be exactly the sort of Update I need, as it is specifically for fixing compatibility issues with legacy programs of all sorts, including games.
I remember trying to install it a while ago & having an error, but I cannot remember what. At the time, I thought the pkg might be corrupted.
I am having a lot of trouble finding a download for this KB, I could not even find it on the Microsoft Update Catalog, so may have to try with my original pkg I had the error with.
I am hoping that installing this KB may light the way.
It is certainly one thing worth trying.

 

[wither 2]

That update was necessary to be installed before installing SP1- windows 7 update “KB976264″ this update does not apply to - Microsoft Community
Maybe Torchwood can expand on it.

 

[IHTurbo]

I had already read many of this type of error, but none were answered as succinctly as the one you pointed out.
I get it now; no expansion necessary.
Unfortunately, it does mean it won't help my situation.

 

[wither 2]

I really can't help until you try the 391.35 directly from NVIDIA. I don't know how we've determined that you have the correct driver. Doesn't hurt to try it. If it doesn't help, then you can always install a different one. Of course, we will be back to the drawing boards on your problem.

 

[IHTurbo]

Fair enough, as you say, it cannot hurt.

As far as determining I have the correct Driver, it comes from the following:-
- Downloading the latest driver gives the same driver package details
- In Downloading the latest driver, I determined that it was DEFINITELY for Win7x64.
- Both driver pkgs are EXACTLY the same size.
The odds of 2 different driver pkgs, 2-3 years apart, having the same pkg size is astronomical.
- The Driver version number from Device Mgr properties = 23.21.13.9135.
- The last 5 characters tally with the 391.35 driver version, as in "3.9135".
- I have noticed previously that this is how the driver version number is specified in the actual driver properties' details.

Anyway, I WILL try it, to-be-sure, to-be-sure.


Yesterday I did a lot of research on Win7 Application Compatibility Update Packages and came across a few things of interest, such as:-
- KB976264 (Win7 Appln Compat Updt Pkg)
- KB2385678 (Security Updt for Win7)
- KB2670838 (Win7 Platform Update)

I tried to install all of these & received messages that they were already installed or they were "not applicable to your Computer".

Along with the above, I also discovered:-
- KB3020369 (Win7 April 2015 Servicing Stack Update)
- KB3125574 (Win7 SP1 Rollup Updt [SP2]).
KB3020369 is a Prerequisite for KB3125574, along with a couple of other KB's, which I will have to check are already installed, or download them.

KB3125574 (Win7 SP1 Convenience Rollup Update) is often unofficially called "SP2", hence the "[SP2]". Microsoft doies not like the SP2 moniker though and denies all.

I am hoping one of the above may help stabilise the system, if they are not already installed.
Either way, it is worth checking, to ensure the system is Update up-to-date.


I also found the Windows Assessment and Deployment Kit (Windows ADK), which contains the Application Compatibility Toolkit (ACT).
Long term, this toolkit may help me diagnose outstanding program incompatibility issues.

 

[IHTurbo]

Yesterday, after uninstalling the old Driver all the Nvidia S/W, I installed the newly-download Nvidia v391.35 Driver & S/W.

I also confirmed that my Mobo (Gigabyte Aorus X470 Gaming 7 Wi-Fi) is a Revision 1.0 and not a Revision 1.1.
I was wondering that I had possibly installed the BIOS &/or drivers for the wrong revision.
This is now definitely NOT the case.

Over the weekend, I will perform some testing and attempt to initiate a BSOD D1 again.