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Windows 7: BSOD on start, Startup Repair: Unknown Bugcheck: Bugcheck 3d

01 Feb 2014   #1
Clonkex

Windows 7 Home Premium x64
 
 
BSOD on start, Startup Repair: Unknown Bugcheck: Bugcheck 3d

We've been getting a BSOD on one of our computers on startup recently. The exact message the BSOD gives varies but often mentions atapi.sys. Having done extensive research we've come to the conclusion that it could be a rootkit or it could be the fact that we have Daemon Tools installed on the computer. The problem is, when the BSODs first started (entirely at random - we'd done no updates and changed nothing, except perhaps to install a game or two, not sure), repeatedly trying to start the computer would eventually make it start (after 4 or 5 attempts) and it would be fine after that, but they've gotten worse and no matter how many times we tried, we've been unable to make it start, safe-mode or otherwise. If only we could get the thing to start up, we could run heaps of rootkit scans.

We'd really rather not do a format and full reinstall, so we're looking for solutions that can be done by hand.

So far, we've tried renaming atapi.sys and copying a fresh (hopefully clean) version from a different computer via Recovery Environment's cmd prompt, but the BSODs still occur. We've tried Startup Repair, but it gives this message:

Code:
Root cause found:

Unknown Bugcheck: Bugcheck 3d. Parameters = 0xfffff88002ffb020, 0x0, 0x0, 0xfffff88000e012b8.

Repair action: System files integrity check and repair
Result: Failed. Error code = 0x490
We have no USB keys plugged in when doing the Startup Repair.

Specs:

Windows 7 Home Premium x64
Intel Core 2 Quad (can't remember the exact model)
4gb Ram
GTX470
MSI MS-7528 Motherboard

We're dual-booting two harddrives. One has Windows XP on it, the other Windows 7. The XP harddrive boots fine, but the 7 drive BSODs every time.

We cannot boot into Windows, safe-mode or otherwise.

Any help would be much appreciated


My System SpecsSystem Spec
.
01 Feb 2014   #2
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Additional information is required.

1. Download this .BAT file to your desktop
download
2. Right-click the .BAT file and then click 'Run as Administrator'
3. Locate the .ZIP file created on your desktop, and upload it here in your next reply.

My System SpecsSystem Spec
01 Feb 2014   #3
Clonkex

Windows 7 Home Premium x64
 
 

Quote:
Additional information is required.

1. Download this .BAT file to your desktop
download
2. Right-click the .BAT file and then click 'Run as Administrator'
3. Locate the .ZIP file created on your desktop, and upload it here in your next reply.
Surely this is pointless without being able to start up the computer? To be clear, we can't run anything on the problem computer that requires Windows to be running.
My System SpecsSystem Spec
.

01 Feb 2014   #4
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

Have you tried a Repair Install?

Repair Install
My System SpecsSystem Spec
01 Feb 2014   #5
Clonkex

Windows 7 Home Premium x64
 
 

Quote:
Have you tried a Repair Install?
No. I was hopeful when I read what it could do, but... have you even read my first post?

Quote   Quote: Originally Posted by Repair Install Instructions
1. Start Windows 7
We cannot start Windows.

I don't mean to be rude, but you have twice asked us to perform tasks that require the computer to be running fine already.
My System SpecsSystem Spec
01 Feb 2014   #6
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

My apologies, I missed the bit about you not being able to boot Windows 7 at all - I see you've made that bold now.

If you can boot in XP, and navigate to the Windows 7 disk/partition, see if you can locate the latest .dmp file in C:\Windows\MiniDump.

If you can, upload it here and I'll take a look....although I'm not sure what we can actually do about it until you can boot Windows 7. The only thing I can suggest is to run a Startup Repair 3 times...this multiple runs will sometimes fix the errors to allow you to boot.

Reference tutorial if you need it:
Startup Repair
My System SpecsSystem Spec
02 Feb 2014   #7
Clonkex

Windows 7 Home Premium x64
 
 

Quote:
My apologies, I missed the bit about you not being able to boot Windows 7 at all
Ok no worries

So basically, we needed (wanted) the PC going now, so we had to resort to formatting and reinstalling. We had had some weird virus-related issues from previously (such as Windows Firewall being permanently disabled and network sharing not working), so we decided it was worth the effort to simply start from scratch.

The really weird thing is - it's doing it again. It started out just fine. All going well, installed graphics drivers, Chrome, restarted several times as necessary. Then installed a few optional updates, including those related to the Microsoft mouse we use, and restarted again (it told us to). BIOS screen, Windows Logo, BSOD. BIOS screen, Windows Logo, desktop.

As a bit of extra information, we've had two hard drives in that PC for some time - one with Win7, the other with XP. Both ~350GB. Too small. So just last week we bought a brand new 1TB Seagate drive to replace the Win7 drive (XP was rarely used). To save time, we decided to simply clone the entire 350GB drive to the 1TB drive and merge the partitions (knowing full well cloning copies over any and all errors in the data). This worked a charm - except that it still got the BSODs. We now assumed it was not a failing drive and that it was corrupted/virus'd data and this is where we did the full format.

That's one reason it's so weird that we're still getting the rotten BSODs. It's a brand new hard drive with a brand new installation of Windows. We now assume it's a hardware issue (obviously). We managed to stop the most recent BSOD long enough to see the error (Disable Restart On Error or whatever it's called) and it once again referenced atapi.sys with an actual error of DRIVER_IRQL_NOT_LESS_OR_EQUAL.

We realised we still had the old 350GB Win7 drive plugged in. It was second in the boot order, with the new 1TB drive first, so we can't see how that could have affected it, but we removed it entirely from the boot list. It then started up first go, but that may well have been a fluke as we only started up once. We're about to restart a few more times to test and report back. If it BSODs again we'll try physically unplugging the old drive. Good tip about running Startup Repair three times - will do if necessary
My System SpecsSystem Spec
03 Feb 2014   #8
Clonkex

Windows 7 Home Premium x64
 
 

Ok, so the successful boot after changing the boot order was definitely a fluke (as expected). It has, since, gotten even worse and been crashing even more, sometimes just hard resetting with no BSOD (as far as we can see).

When we bought the CPUs (the Core 2 Duos that were in them were just too slow) that now inhabit these two near-identical PCs, we got them second-hand. I got a Q9550 for mine and my brother (the other half of the "we") got a Q9505. Both Core 2 Quads, only mine's an earlier version and has a 12MB L2 cache over my brother's 6MB.

I'm a bit obsessive about fixing computers, so despite the fact that we were intending on taking the computer to an excellent local repair shop tomorrow, I just couldn't stop thinking about it. I decided that even though it would take an age, I would try to run Startup Repair three times from the Windows 7 disk. The disk booted and began loading its version of Windows, but crashed exactly as when booting from the hard drive. I unplugged everything but the disk drive and tried again. I was pretty sure at this point that it was not software-related, but when it crashed again I became utterly convinced that it was hardware.

When we bought the CPUs, we both checked carefully on the MSI website for the CPU support chart - yup, both versions of the CPU were supported. Clearly, however, we didn't check carefully enough, because there's actually two versions of our motherboard. The FSB-1600 version and the original (FSB-1333). Despite both CPUs being rated for 1333, only mine was actually listed as supported on the MSI website (if only we'd read more carefully!).

So this got me thinking. I decided that I'd just try turning down the speed of the CPU, and did so in the BIOS by turned the FSB ratio from 8.5 (2.83GHz) to 6 (2GHz). Behold, it starts.

So I tell my brother and the first thing we do is take off the cooling fan and reapply heat goo. Unfortunately, as expected, this made no difference. But we did discover that it also starts fine with the FSB ratio set down just one notch (from 8.5 to 8).

We now CAN boot into Windows

What could this be? Is it a dying motherboard or a dying CPU? It doesn't appear to be running hot: 44C according to CPUID's HW Monitor.
My System SpecsSystem Spec
03 Feb 2014   #9
Golden
Microsoft MVP

Windows 7 Ult. x64
 
 

I've asked Steve to stop by here and offer some suggestions.
My System SpecsSystem Spec
03 Feb 2014   #10
Clonkex

Windows 7 Home Premium x64
 
 

Quote:
I've asked Steve to stop by here and offer some suggestions.
Thanks
My System SpecsSystem Spec
Reply

 BSOD on start, Startup Repair: Unknown Bugcheck: Bugcheck 3d




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