PC intermittent crashing bsod

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alaneglinton

TS Rookie
New to the forum, looking for some help !
I have just bought a 2nd hand PC with AMD64 3500+ CPU on Asus A8N-SLI Deluxe board running XP SP3 and it keeps crashing (about once every 4 or 5 hrs) the power does not appear to switch off.
The whole system reboots each time instantaneously. The PC does not crash any more frequently or faster if it has just crashed.
I gave the PC a good clean out + checked connections etc after I started to see the problem and there was an incredible amount of dust in the Graphics card cooling fan and the Motherboard chipset fan. The chipset fan was very noisy on boot up, but clearing the dust away has rectified this.
Still the PC crashes !
I'm only surfing the net and running Squeezebox, so the PC shouldn't be under any pressure.

I have loaded Probe 2 and I'm seeing...
CPU temp - 42 to 46C
MB temp - 42 to 45C

All voltages + fans seem to happy and running well. One chassis fan (from 2) is not connected.

on stopping auto reboot I get blue screen with IRQL_NOT_LESS_OR_EQUAL and the usual message, trouble shooting tips etc

Info from system log is (summarised)....

Event Type: Error
Event Source: System Error
Event Category: (102)
Event ID: 1003
Date: 27/07/2008
Time: 13:11:36
User: N/A
Computer: EGG_PC
Description:
Error code 1000000a, parameter1 a0dc29ec, parameter2 00000002, parameter3 00000000, parameter4 804f9932.

Crashed again on reboot after C drive error check with additional blue screen message.....
"nvatabus.sys - address BA71CE19 base at BA17A000 Datestamp 428a9013"

Also get this bs error

PAGE_FAULT_IN_NONPAGED_AREA

Event Type: Error
Event Source: System Error
Event Category: (102)
Event ID: 1003
Date: 28/07/2008
Time: 22:15:49
User: N/A
Computer: EGG_PC
Description:
Error code 10000050, parameter1 80dda210, parameter2 00000000, parameter3 805c5c1a, parameter4 00000000.

I have 10 x mindumps but have no idea about redaing or understanding them

Have tried the following : cleaning and reseating everything, deleteing and updating all drivers, memtest, defrag C drive, deleting page/swap file.

Thanks for any suggestions, alan
 

woody1191

TS Rookie
You have these errors 0xA (Twice), 0x50 and 0x7F all can be caused by Hardware failures although Software is another cause as well. Specifically 0x50 can be caused by Memory errors and 1 of the 0xA errors cites Memory Corruption as a possible cause.
How long did you run memtest86 for?
It is best to run Memtest86 for a Minimum of 7 Passes or Overnight.

Check your CPU using Prime95 - http://files.extremeoverclocking.com/file.php?f=103

And try taking your Graphics Card out and then running the computer to see if it is stable.
 
That's probably a memory problem...to isolate the problem, try to swap your RAM with a good one but see to it that it has the same specs with your current memory.
 

nickc

TechSpot Paladin
if u have more than one mem module try taking out all but one and see if it will boot and then stay running.
 

alaneglinton

TS Rookie
hi folks, thanks for the input....

Crashed again today,

Details
Product: Windows Operating System
ID: 1003
Source: System Error
Version: 5.2
Symbolic Name: ER_KRNLCRASH_LOG
Message: Error code %1, parameter1 %2, parameter2 %3, parameter3 %4, parameter4 %5.


Event Type: Error
Event Source: System Error
Event Category: (102)
Event ID: 1003
Date: 30/07/2008
Time: 07:29:56
User: N/A
Computer: EGG_PC
Description:
Error code 0000007f, parameter1 00000000, parameter2 00000000, parameter3 00000000, parameter4 00000000.

Data:
0000: 53 79 73 74 65 6d 20 45 System E
0008: 72 72 6f 72 20 20 45 72 rror Er
0010: 72 6f 72 20 63 6f 64 65 ror code
0018: 20 30 30 30 30 30 30 37 0000007
0020: 66 20 20 50 61 72 61 6d f Param
0028: 65 74 65 72 73 20 30 30 eters 00
0030: 30 30 30 30 30 30 2c 20 000000,
0038: 30 30 30 30 30 30 30 30 00000000
0040: 2c 20 30 30 30 30 30 30 , 000000
0048: 30 30 2c 20 30 30 30 30 00, 0000
0050: 30 30 30 30 0000

to answer questions posted, have run memtest86 for 3 passes - no errors. will run overnite tonite.
PC always bootsup OK although chipset fan squeals for 2 or 3 mins then settles down. The fault occurs only very 4 or 5hrs so its proving slow to change something and then check.
Have swapped my 4 x 500Mb Ram around, awaiting results.
Will try 'stresstest' tomorrow

Anyone make anything of the minidumps ? cheers, alan
 

nickc

TechSpot Paladin
three passes with memtest86 is not enough, u need at least 7 or over night. bad mem. can pass memtest once in a while but if u have any errors u need to replace the memory.
 

alaneglinton

TS Rookie
Memtset x 10 is OK

three passes with memtest86 is not enough, u need at least 7 or over night. bad mem. can pass memtest once in a while but if u have any errors u need to replace the memory.
Hi Nic, ran Memtset86 overnite (10 passes, 8+hrs) no errors and no crash either. Updated BIOS also.
Will start to replace/remove RAM after next crash.
cheers, alan
 

woody1191

TS Rookie
Before removing the RAM try using Prime95 which i linked earlier in the thread, use all three tests and tell us what happens.

Prime95 can test both the CPU and RAM and seems to be a good second test to Memtest86 because it tests different areas of the RAM and sometimes bad RAM can pass Memtest86, Prime95 is less tolerant with any error with these parts and so will find any error in minutes. You only need to run each test for about 10-15 mins max.
 

alaneglinton

TS Rookie
Fixed ?!

:D
Hi folks, I know I'm tempting fate, but......
Looks like the last changes - update bios or maybe less likely, re-seating RAM has done the business ! That coupled with getting rid of the Vidia drivers.
Curiously (coincidence ?) CPU temp and fan speed are better since BIOS update. CPU Temp was typically 42-46C, now 34-38C. Fan Speed 2,200rpm max before, now 3,400rpm.

I though I would be clever and download the latest NVidia mobo drivers after these 2 changes BUT blue screen on boot up every time.
Quickly deleted and back to OK, so this was also clearly a problem.

Replaced the increasingly very noisy (reday to fail) chipset fan with Zalman ZM-NBF47 Northbridge Flower Heatsink (NIGHTMARE of a job !), so now no fan to be noisy ! MB temp now = 42-44C - hopefully not getting any hotter !

May still do the Prime95 test - when I'm feeling brave after a few days with no crash !

Thanks to everyone for all their help, very much appreciated.

alan :lol:
 
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