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Windows 7: STOP 0x101: CLOCK_WATCHDOG_TIMEOUT troubleshtg

13 Feb 2010   #1
Microsoft MVP


Info on the STOP 0x101 error: BSOD Index

Best advice that I've seen about this error (from here: )

Here's another good article:

What you're looking for will be in one of the following categories:

a) BIOS bug
b) a driver whose activity is causing the target processor to lock up
c) a hardware defect (temperature, voltage, dust, RFI, outright borkedness...) ?I wonder about CPU defect also)
- H2SO4
So, check the drivers ( )
Then check the inside of the case (temperature, voltage, dust, etc).
Then run some hardware stress tests
Try this free video stress test:
FurMark Setup:
- If you have more than one GPU, select Multi-GPU during setup
- In the Run mode box, select "Stability Test" and "Log GPU Temperature"
Click "Go" to start the test
- Run the test until the GPU temperature maxes out - or until you start having problems (whichever comes first).
- Click "Quit" to exit
Try this free stress test: Free Software - GIMPS
Prime95 Setup:
- extract the contents of the zip file to a location of your choice
- double click on the executable file
- select "Just stress testing"
- select the "Blend" test. If you've already run MemTest overnight you may want to run the "Small FFTs" test instead.
- "Number of torture test threads to run" should equal the number of CPU's times 2 (if you're using hyperthreading).
The easiest way to figure this out is to go to Task Manager...Performance tab - and see the number of boxes under CPU Usage History
Then run the test for 6 to 24 hours - or until you get errors (whichever comes first).
The Test selection box and the stress.txt file describes what components that the program stresses.
More Video Stress Tests:
1. Thanks to VirGnarus for finding this video memory test:
Alternate download link (w/o registration) located here:
2. Two other video stress tests (may be more stressful than FurMark):
NOTE: I have had reports that some ISP's will block this website
Video Memory stress Test -
Artifact Locator -
Sorry, but I don't read the language that this website is made in.
3. Another interesting test that came to my attention:
USE AT YOUR OWN RISK - the program doesn't have a whole bunch of safety features to protect you from yourself!
Then try replacing parts.
Then look up the versions of your BIOS to see what changes were done.

Recently it was found (here: ) that a wipe and reinstall of Windows fixed a STOP 0x101 problem. I'd have to recommend at least running SFC.EXE /SCANNOW on any PC that has this problem (simply because it's too easy easy to do and it may fix things). Thanks to writhziden for pointing this out!

My System SpecsSystem Spec
15 Feb 2010   #2
Capt.Jack Sparrow

Windows 7 Ultimate - 64-bit | Windows 8 Pro - 64-bit

Great info John ...!!! Thank You !!
My System SpecsSystem Spec
17 Feb 2010   #3

Win 8 Release candidate 8400

A tough one to diagnose
My System SpecsSystem Spec

01 May 2011   #4

Windows 7 Ultimate 64bit

On every forum where I have seen this solved, it was done by either finding & turning off a bad core in BIOS or with a some software program, OR by getting an RMA on the CPU/Processor, or just buying a new CPU/Processor. The full error message tells you a secondary processor (dual, triple, quad core) caused the error. My AMD 955 BE worked fine on windows XP x32 (32 bit), but soon as I upgraded that very same computer to Windows 7 X64 (64 bit) system, this BSOD started. The same one every time it does it. Sometimes it will run for a day or two, other times will get this error multiple times in one day. Just depends on whether that bad CPU CORE gets hit in its weak spot or not. I have already ordered a Phenom II X4. Just after buying this defective Phenom 9600 BE, I started seeing all kinds of posts with problems with it. Too bad the posts were not there for me to see before I bought it. AMD seems to be the worst, but Intel dual & 4 core etc., can have this same problem. If you are under warranty, get yours replaced. If not, then start saving up your money for a replacement. The replacement I ordered has nothing but glowing reviews this time & has been out for quite a long time so it should be safe.
My System SpecsSystem Spec
08 Jul 2011   #5

Windows 7 Home Premium 64bit.

I was directed here from here:

So I'm assuming I have this problem. First off, I have a new system, so dust isn't an issue. I've looked at temperatures, and they seem okay, but what temps should I be aiming at roughly? When I check the BIOS, my CPU is at about 35 degrees. I run the case fans at full speed, and I have no GPU (right now), but I've still had BSOD without it.

Here's some other stuff from my Bios, not sure what is/isn't necessary, so here's the lot:

CPU Core Voltage - 1.176v
CPU Load Line Calibration - Level 5
IGPU Voltage +0mV
DRAM - 1.500v
PCH Voltage - 1.059v
CPU PLL Voltage - 1.832v
VTT Voltage - 1.051v
VCCSA Voltage - 0.925
VCore +1.176
+12.00v - +12.355v
+5/00v - +5.016v
+3.30 - +3.392v
CPU Temp - 35
MB Temp - 27

Any idea on if these temps/voltages are right? and if so, how would I proceed to 'check' my drivers?

Thanks for any help!
My System SpecsSystem Spec
10 Jul 2011   #6

Windows 7 Ultimate 64bit

Replaced AMD 4 core cpu. Error 101 BSOD now gone. CPU was under warranty. AMD did an RMA. They checked it at their end & found it defective. They sent a new one.

My System SpecsSystem Spec
25 Mar 2012   #7

windows 7 ultimate 64 bit

hi, i was also directed here, i have a new pc, and each time im playing a game, it goes to blue screen after 1 to like 15 minutes of playing.
error 0x00000101

motherboard m5a97evo
video sapphire 7770 1gb
corsair 800w
16gb ram 1600
amd fx 8150 core
wd 2tb hard drive caviar black
all inside a coolermaster 690 II advance
My System SpecsSystem Spec
26 Mar 2012   #8
Vir Gnarus

Microsoft Community Contributor Award Recipient

Windows 7 64-bit

I usually don't find interest in backseat moderating, but please don't post your issue multiple times, especially as a reply to a thread that's designed as an article to educate, and not as a means to service people's needs. If you fragment your case like this then it makes it very difficult for you and those wishing to assist you, and it also clutters the forums unnecessarily.

I know you were directed here, but the intent was to give you steps with information to help you find the cause of the crashes, as well as to provide information for us. It's not a thread to request assistance in. Make sure to mention any updates or any new information in the original thread you made.
My System SpecsSystem Spec


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