Solved Thought BSODs had been done in, but NO!

[rundwald]

For a while all seemed Ok after I closed thread http://www.sevenforums.com/general-discussion/273474-mouse-pointer-freezes.html
and subsequently updated the BIOS and a number of drivers, using either Dell's or manufactuerea' download sites.
I also, of course, made sure I had Firewall and Antivirus installed.

Trouble seems to have arisen, however, in the last couple of days, as can be seen from the SF zip attached ( and FWIW the Who Crashed me log).

It's driving me mad, so I hope that once more you will help me.

Thank you in anticipation.

 

[Britton30]

Totally un-install Iobit Advanced System Care! You don't need this to gummy up your computer.
Scroll down to [17] Security Software | SingularLabs

You didn't reinstall the above app did you? If soo follow Jacee's advice.

Some hardware tests to run.

Graphics card:
Video Card Stress Test with Furmark

Hard drive(s):
Pick one for your HDD brand or use Seatools.
7 Free Hard Drive Testing Software Tools


RAM (memory):
This will require memtest on a bootable CD or USB stick.
RAM - Test with Memtest86+

 

[rundwald]

Although I had uninstalled ASC, using Jaycee'stoll revealed a couple of stray files.

Furmark, the temp levelled at 68 deg.

WD Data Lifeguard showed nothing on extended test

MemTest, I ran for 5 passes and nothing emerged. Is that enough to deal with 4 sticks @1GB?

Should I bother about USB hub and ports, and is there a way to prove them without a device installed to each?

Unfortunately our house's consumer unit RCD has been tripping out recently. We suspect it might be the freezer.
Might that bring about or exacerbate t the type of problem I am seeing?

 

[Dsprague]

Had a look through your dump files, now humor me here but is your sub hub one that you can unplug? or by usb hub do you simply mean the usb ports on the computer its self?

 

[rundwald]

All the guff that falls under Universal Serial Bus Controllers in Device Manager; nothing unpluggable.

 

[Dsprague]

Try running through this tutorial and see if it sorts things out for you:

http://www.sevenforums.com/tutorials/147369-usb-selective-suspend-turn-off.html

 

[rundwald]

I'll try that, but am not sure how that might help my problem. can you please help me understand?

 

[rundwald]

My confusion about the possible aid from the tutorial remains. Help please.

 

[Dsprague]

Terribly sorry about the late reply have had a bit of a busy week, to answer your question, it is from prior experience with BSODs of this nature. Your dump files consistently point to your USB ports as being the problem, I have seen in the past where selective suspend has relieved such problems.

 

[rundwald]

Thanks for coming back.

Possibly Probably a very silly question, but how to choose ports to suspend?

A rocking horse asks is a USB root hub the same as a port?

Once the culprit had been IDd how would a repair be done?

 

[Dsprague]

Its not a matter of which ones, its a matter of if it is on or if it is off it applies to any usb port on your pc. A hub is typically a device used to expand a single usb port into many usb ports like this: Rosewill RHB-320 Hub - Newegg.com
A usb port is just a single port one usb connection

 

[rundwald]

Since last writing I follwed suggestion re the USB ports ans all seemed well, until theis weekend, when the BSODs occured again. They seem to concern
ntoskrnl.exe (nt+0x75C40) and ntkrnlmp.exe (nt!KeBugCheckEx+0x0). What the bits in brackets mean I have no idea!

I attach the SF zip and some other items in case they may be of use.

I hope you will be willing and able tohelp me again! The chameleon like BSODs are maddening.

 

[rundwald]

Delayed post now done, except that I have a full dump that I uploaded to two hosting sites, and neither sharing link is accepted by this forum's manage attachments facility. Hopefully http://www.**************/?kf1o5zkwr67s9cu will work

 

[Dsprague]

OK Had a look at the new files, it seems these new Blue screens are a whole other breed the stop codes are both 0xFC:

*******************************************************************************
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck FC, {fffff88002bb7c60, 800000004407d963, fffff88002bb7a40, 2}

Probably caused by : memory_corruption

Followup: memory_corruption
---------

It is blaming memory corruption as the problem, these type of BSOD are caused by device drivers, so on that note please enable driver verifier and allow it to crash your computer then post back here with the new dumpfiles once it has:

Driver Verifier

Tip: If you can not boot normally once driver verifier is enabled please boot into safe mode by tapping the F8 key before the windows logo appears and then disabling driver verifier from safe mode.

 

[rundwald]

I get confused about driver verifier. How can I ensure that it actually is running or has completed?
Just before the latest incidents I had it going for 24+ hrs with nothing happening.

I am dense ( must be) but am not sure if you want me to do anything with bit enclosed in code.

 

[Dsprague]

If the problem is infact caused by a Driver, then Driver verifier will nine times out of ten cause the computer to BSOD, If it is not causing a BSOD then it is likely a hardware problem, however this particular BSOD (atleast according to its documentation) is caused by Driver problems.

 

[rundwald]

I'll have another go with it to see if it reveals any more other than what I put in so far.
Trouble seems to be pin pointing the driver at fault.

 

[Britton30]

driver verifier runs until you stop it. The memory corruption could be any memory in the machine, RAM, GPU, or CPU cache.
If you haven't, do this.

RAM (memory):
This will require memtest on a bootable CD or USB stick.
RAM - Test with Memtest86+​

 

[rundwald]

Loaded Verifier this morning, so will now wait and see. Used Memtest quite recently, whilst the earlier problems mentioned in the thread were on go. However will use it again idc.

Found something a little strange whilst looking for unwanted program folders. I have two of Nvidia Corporation.
The onw that has earlier dated contents has fewer folders than the later, but all the earlier dated folder's contemts are in the later. Why that is I don't understand, but might it be a possible cause of some of my troubles?

 

[Dsprague]

It may be contributing to the problem, it is likely that when updating your Nvidia driver(s) the old one(s) was/were not uninstalled prior to installing the new one(s) have a look at this tutorial you may want to think about uninstalling your Nvidia diver(s) then running through this tutorial before installing the latest available version(s):

Drivers - Clean Left over Files after Uninstalling