XP random Bluescreen

I've was working on a PC for a client last week, which supposedly suffered from bluescreens, i could not replicate the problem, but i did my basic maintenance anyway, i assumed maybe i had unknowingly fixed the problem.

After a day of no troubles the client picked it up. After going home, same issue. I told them to detach any other devices, same issue.  

I know have the PC back in my possession, oddly checking the minidumps there is only one, dated yesterday.

I am no expert at minidumps so i figured i'd get tour opinions.

Running windows XP.

==================================================
Dump File         : Mini022011-01.dmp
Crash Time        : 2/20/2011 12:46:05 PM
Bug Check String  : DRIVER_IRQL_NOT_LESS_OR_EQUAL
Bug Check Code    : 0x100000d1
Parameter 1       : 0x00000006
Parameter 2       : 0x00000002
Parameter 3       : 0x00000000
Parameter 4       : 0xf745aec5
Caused By Driver  : iaStor.sys
Caused By Address : iaStor.sys+33ec5
File Description  :
Product Name      :
Company           :
File Version      :
Processor         : 32-bit
Computer Name     :
Full Path         : g:\Mini022011-01.dmp
Processors Count  : 2
Major Version     : 15
Minor Version     : 2600
==================================================
Mini022011-01.dmp
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STS-TechAsked:
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David_HagermanConnect With a Mentor Commented:
iastor.sys is the intel matrix storage manager driver file

Is you client adding an additional external drives on the when they get home?
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arnoldConnect With a Mentor Commented:
Check memory just in case.
While in the bios check power supply output parameters
ie. the 3.3 V should not be too close to the -20% threshold.
If the 3.3 is too low it will trigger a panic and a reboot but not a blue screen.
Check if there is a newer/updated version for the driver.
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STS-TechAuthor Commented:
As far as i know, i had him disconnect all external devices, except mouse and keyboard, he claims just a printer is hooked up.

I'm running memtest now, installed the latest chipset, and dled the intel matrix storage manager driver for when it is done doing the memtest.

I'll report back with results.
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STS-TechAuthor Commented:
So far everything passed, no crashes, client picked it up, he will call back this evening, then i will award points.
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Lionel MMSmall Business IT ConsultantCommented:
I agree with the above, could be bad RAM or the driver. If it continues to happen-hopefully not--I suggest uninstalling the driver and then reinstalling it. Does the system have any additional add-on hard disk drive controllers or just those on the motherboard?
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David_HagermanCommented:
Did you client have the problem again ? If so did he report anything new?
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STS-TechAuthor Commented:
The user decided to not contact me back, so i'm assuming it is fixed, thanks experts!
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