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IDProjectCategoryView StatusLast Update
0002007SpeedFanHardware supportpublic2019-02-06 09:58
ReporterNeurostim Assigned Toalfredo  
Status acknowledgedResolutionopen 
Platformx64OSWindowsOS Version7 sp1
Product Version4.47 beta 
Summary0002007: BSOD when Speedfan scan SCSI drivers
DescriptionI have a Raid0 with Intel Rapid Storage Technology Enterprise C600 chipset.
When i launch speedfan and it start scanning scsi devices, Windows crash with a BSOD: IRQ not less or equal STOP 0x00000001D iAstorA.sys

If i launch speedfan with the command parameter /NOSCSISCAN start well.
TagsNo tags attached.
Motherboard ModelAsus Rampage IV Formula
Video Card ModelGeForce 680



2012-06-25 13:17

manager   ~0007004

Does this happen with 4.46 too?


2012-06-25 20:06


debug.nfo (69,962 bytes)


2012-06-25 20:07

reporter   ~0007005

Yes the same bsod with 4.46

I upload the debug.nfo file generated by 4.46


2012-08-03 23:55

reporter   ~0007048

Last edited: 2012-08-03 23:56

I can confirm that I have the same issue as reported in the above bug note, with the mostly the same hardware (RAMPAGE IV EXTREME). The first time it happened, I thought it might have been outdated Intel C600 drivers, so I updated to ones just released a few days ago. Then it happened again, again just as I was starting SpeedFan, so I Googled and came up with this bug note.

I have two full (64 GB) system memory dumps, and matching minidumps if you want them (HUGE downloads since the system has 64 GB of RAM!). My system is also a Win7 Ultimate x64 system, fully patched.

One thing of interest. I have *two* RAID systems in place, and the problem did not happen until I activated the second (data) system.

System 1 is the boot drive, 3 x 500 GB SATA II in RAID-5 for 1 TB total space, on the Intel C600 motherboard SATA interface. SpeedFan (as downloaded 3-4 days ago during the system build) was working on it fine, when this was the only RAID in the system.

Then I activated my hardware RAID, an Areca 1210, for my media server. It is 4 x 2 TB in a single RAID-5 volume of 6 GB. Ever since adding that one in yesterday, running SpeedFan causes the IRQ_NOT_LESS_THAN_OR_EQUAL bug exactly as the previous reporter documented. Oddly, it happens in the iaStorA.sys driver (the Intel onboard motherboard driver), and not in the driver for the Areca (which is a separate driver, but is also StorPort rather than SCSIPort).

I *suspect* that the problem may be due to volumes in excess of 2 TB. I am unsure of this because Neurostim did not state the size of his drives or partitions.... but note that his BOOT drive CANNOT be in excess of 2 TB (which is why *I* have two arrays myself). You may want to question him on the size and configuration of his arrays, and look for an overflow condition related to signed 32 bit integers when inspecting SCSI drive sizes.


2012-08-04 13:57

reporter   ~0007049

Hi ADBjester!

I updated the driver and the bsod appears too.
In the c600 controller, i have plugged 2 x 500GB HD SATA II in RAID-0 for 1TB total space, 1 x 128GB SSD SATA III for system partition, 1 x 2TB HD SATA II and a DVDRW



2012-08-06 21:00

manager   ~0007052

I think this is a driver (Intel) issue. SpeedFan, when accessing SCSI, only makes user-level system calls. A BSOD can then be caused only by a bug in the driver.


2012-10-29 18:45

reporter   ~0007101

FWIW, I might have the same problem - unless I add /noscsiscan running speedfan immediately blue-screens my box. I have a Biostar Ivy Bridge motherboard with the Intel storage controller. I checked windbg and some info is attached below, FWIW; I have two SSD's configured as RAID0, total size about 460GB. Frankly, even if this is a bug in the Intel driver, I'd try to find a workaround - it's a lot harder to rev a motherboard controller compared to changing a little utility program, after all ;). Thanks!


READ_ADDRESS: GetPointerFromAddress: unable to read from fffff80002eca100
GetUlongFromAddress: unable to read from fffff80002eca1c0
 fffff80802e47728 Nonpaged pool

fffff800`02cbb7e2 488b44cd00 mov rax,qword ptr [rbp+rcx*8]

fffff880`072f2448 fffff800`02c418af : 00000000`00000050 fffff808`02e47728 00000000`00000000 fffff880`072f25b0 : nt!KeBugCheckEx
fffff880`072f2450 fffff800`02c990ee : 00000000`00000000 fffff808`02e47728 00000000`6f496d00 fffff800`02e47700 : nt! ?? ::FNODOBFM::`string'+0x437c1
fffff880`072f25b0 fffff800`02cbb7e2 : fffff880`00000001 fffffa80`00000002 fffff880`072f2600 fffff880`072f2600 : nt!KiPageFault+0x16e
fffff880`072f2740 fffff800`02c35c05 : fffff6fc`40048000 00000000`00009000 00000000`00000000 00000000`00000001 : nt!MiInsertCachedPte+0x82
fffff880`072f2790 fffff880`0160212d : 00000000`00000000 fffff880`072f2b60 00000000`0000000c fffffa80`1a0e0ac0 : nt!MmUnmapIoSpace+0xf5
fffff880`072f27e0 00000000`00000000 : fffff880`072f2b60 00000000`0000000c fffffa80`1a0e0ac0 00000000`00000000 : speedfan+0x212d


2012-12-12 03:52

reporter   ~0007136

I'm having the same issue. Launching SpeedFan with the /NOSCSISCAN parameter has so far allowed me to get the app running without bluescreening.


2013-09-12 13:08

reporter   ~0007283

I have a simmular error. It started that we could not startup the PC with new installed Speedfan, we got imiditaly a bsod with iaStorA.sys. We somehow could manage to get it once started after that somehow went ok, but now we hace random bdods allways with iaStorA.sys.

So my guessing is that SpeedFan is acessing something in the driver that is buggy what the regular win routines and other programms are not doing. Probably S.M.A.R.T. related?


2013-09-12 16:37

reporter   ~0007284

We checked again, we cann 100% recreate this. When we dissable the SCSI Scan with /NOSCSISCAN no crahs wehen we take it out crash. This only hapends once it scans news drives.


2013-09-15 08:50

reporter   ~0007285

Same error here (BSOD IRQ_NOT_LESS_THAN_OR_EQUAL) Using MSDN Windows 8.1 with Intel 12.8 xx drivers installed (F6) at Windows Install on an RAID 0 Array.
Same Issue, Same resolution with the /NOSCSISCAN switch.
BSOD occurs with any Driver version.

See my 2013-09-05 bug reported here.

Issue History

Date Modified Username Field Change
2012-06-25 13:12 Neurostim New Issue
2012-06-25 13:12 Neurostim Status new => assigned
2012-06-25 13:12 Neurostim Assigned To => alfredo
2012-06-25 13:17 alfredo Note Added: 0007004
2012-06-25 13:17 alfredo Status assigned => acknowledged
2012-06-25 20:06 Neurostim File Added: debug.nfo
2012-06-25 20:07 Neurostim Note Added: 0007005
2012-08-03 23:55 ADBjester Note Added: 0007048
2012-08-03 23:56 ADBjester Note Edited: 0007048
2012-08-04 13:57 Neurostim Note Added: 0007049
2012-08-06 21:00 alfredo Note Added: 0007052
2012-10-29 18:45 prcek Note Added: 0007101
2012-12-12 03:52 Roundlay Note Added: 0007136
2013-09-12 13:08 SpeedStep Note Added: 0007283
2013-09-12 16:37 SpeedStep Note Added: 0007284
2013-09-15 08:50 Mikmouse Note Added: 0007285