New CPU installation brings an unintended feature: BSoDs with DRIVER_IRQL_NOT_LESS_OR_EQUAL

Posted on 2006-03-26
Medium Priority
Last Modified: 2007-11-27
I had a new Athlon X2 4800+ installed into a year-old Gigabyte GA-K8NS Ultra-939 this week, and the night I got the computer back, I started seeing BSoDs, seemingly when the computer went under a heavy load.  I did alot of searching on the resultant DRIVER_IRQL_NOT_LESS_OR_EQUAL error, but was unsuccessful at resolving the problem.  Eventually succummbed to the arduous task of re-formatting and re-installing eveything from scratch.  (And before I could even start, my last BSoD sidelined me with a missing hal.dll error that made everything terribly more complicated, but I won't get into that.)  Many, many hours later, after the format, much installing, and finally getting my computer back just the way I like it, I just now received another BSoD (the only active task was AnyDVD/CloneDVD).  It was the same 0xD1 error, but now in ATAPI.SYS instead of the PCIIDEX.SYS I saw before the format.  I downloaded Debugging Tools for Windows to analyze the resultant .DMP file, but I can progress no further.

Can anyone gleen any useful information from the following .DMP analysis?

PS: I've re-seated the memory chips and the GeForce 6800GT AGP card (the system's only card, everything else is onboard), the motherboard's BIOS is the latest and greatest, I've got the newest nVidia drivers, and newest fireware for the Plextor DVD drive, I've completed sufficient iterations of Windows Update, and I've already run memtest without any problems detected.  I think I've done my due diligence, but I'm not sure what other drivers I should be trying to update.

PSS: The full hardware report of my system, courtesy of Everest Home, can be seen here: http://ddubois.bounceme.net/misc/everest_home_report.txt 

Opened log file 'c:\debuglog.txt'
1: kd> .sympath srv*c:\symbols*http://msdl.microsoft.com/download/symbols
Symbol search path is: srv*c:\symbols*http://msdl.microsoft.com/download/symbols
1: kd> .reload;!analyze -v;r;kv;lmnt;.logclose;q
Loading Kernel Symbols
Loading User Symbols
Loading unloaded module list
*                                                                             *
*                        Bugcheck Analysis                                    *
*                                                                             *

An attempt was made to access a pageable (or completely invalid) address at an
interrupt request level (IRQL) that is too high.  This is usually
caused by drivers using improper addresses.
If kernel debugger is available get stack backtrace.
Arg1: 000000ac, memory referenced
Arg2: 00000007, IRQL
Arg3: 00000000, value 0 = read operation, 1 = write operation
Arg4: f74925ed, address which referenced memory

Debugging Details:

READ_ADDRESS:  000000ac


f74925ed ffb6ac000000     push    dword ptr [esi+0xac]




LAST_CONTROL_TRANSFER:  from 80544685 to f74925ed

f7a4bc9c 80544685 86d8ae18 86d03030 01010007 atapi!IdePortInterrupt+0xd
f7a4bc9c f77cdc46 86d8ae18 86d03030 01010007 nt!KiInterruptDispatch+0x45
f7a4bd50 80544d2c 00000000 0000000e 00000000 processr!AcpiC1Idle+0x12
f7a4bd54 00000000 0000000e 00000000 00000000 nt!KiIdleLoop+0x10

STACK_COMMAND:  .bugcheck ; kb

f74925ed ffb6ac000000     push    dword ptr [esi+0xac]


FOLLOWUP_NAME:  MachineOwner

SYMBOL_NAME:  atapi!IdePortInterrupt+d


IMAGE_NAME:  atapi.sys


FAILURE_BUCKET_ID:  0xD1_atapi!IdePortInterrupt+d

BUCKET_ID:  0xD1_atapi!IdePortInterrupt+d

Followup: MachineOwner

eax=86d47630 ebx=f7a4bd50 ecx=00000002 edx=00002894 esi=00000000 edi=86d8ae18
eip=f74925ed esp=f7a4bc94 ebp=f7a4bc9c iopl=0         nv up ei pl zr na po nc
cs=0008  ss=0010  ds=0023  es=0023  fs=0030  gs=0000             efl=00010246
f74925ed ffb6ac000000     push dword ptr [esi+0xac] ds:0023:000000ac=????????
ChildEBP RetAddr  Args to Child              
f7a4bc9c 80544685 86d8ae18 86d03030 01010007 atapi!IdePortInterrupt+0xd (FPO: [Non-Fpo])
f7a4bc9c f77cdc46 86d8ae18 86d03030 01010007 nt!KiInterruptDispatch+0x45 (FPO: [0,2] TrapFrame @ f7a4bcc0)
f7a4bd50 80544d2c 00000000 0000000e 00000000 processr!AcpiC1Idle+0x12 (FPO: [0,2,0])
f7a4bd54 00000000 0000000e 00000000 00000000 nt!KiIdleLoop+0x10 (FPO: [0,0,0])
start    end        module name
804d7000 806e2000   nt       ntkrpamp.exe Tue Mar 01 14:34:38 2005 (42250A1E)
806e2000 80702d00   hal      halmacpi.dll Tue Aug 03 19:59:09 2004 (41107B2D)
b6667000 b6690f00   kmixer   kmixer.sys   Tue Aug 03 20:07:46 2004 (41107D32)
b8ad5000 b8ae5280   Udfs     Udfs.SYS     Tue Aug 03 20:00:27 2004 (41107B7B)
b94c6000 b9506100   HTTP     HTTP.sys     Fri Oct 08 13:48:20 2004 (41672744)
b98c7000 b98eef00   secdrv   secdrv.sys   Tue Aug 31 03:42:55 2004 (4134805F)
b99df000 b9a30300   srv      srv.sys      Mon May 09 14:17:49 2005 (427FFDAD)
b9af1000 b9b00900   Cdfs     Cdfs.SYS     Tue Aug 03 20:14:09 2004 (41107EB1)
b9b49000 b9b75400   mrxdav   mrxdav.sys   Tue Aug 03 20:00:49 2004 (41107B91)
b9c42000 b9c44980   ElbyCDIO ElbyCDIO.sys Thu Apr 21 01:40:36 2005 (42679134)
b9eeb000 b9eff400   wdmaud   wdmaud.sys   Tue Aug 03 20:15:03 2004 (41107EE7)
ba16c000 ba16f280   ndisuio  ndisuio.sys  Tue Aug 03 20:03:10 2004 (41107C1E)
ba1e8000 ba1f6d80   sysaudio sysaudio.sys Tue Aug 03 20:15:54 2004 (41107F1A)
bf800000 bf9c1180   win32k   win32k.sys   Wed Oct 05 14:05:44 2005 (43446A58)
bf9c2000 bf9d3580   dxg      dxg.sys      Tue Aug 03 20:00:51 2004 (41107B93)
bf9d4000 bfd9ce00   nv4_disp nv4_disp.dll Thu Mar 09 14:31:16 2006 (4410C8D4)
f46b7000 f46ce480   dump_atapi dump_atapi.sys Tue Aug 03 19:59:41 2004 (41107B4D)
f46cf000 f46f2000   Fastfat  Fastfat.SYS  Tue Aug 03 20:14:15 2004 (41107EB7)
f4742000 f47abd00   PD016Vid PD016Vid.sys Thu Jun 20 21:36:47 2002 (3D12D78F)
f47ac000 f48666e0   avg7core avg7core.sys Wed Feb 22 14:40:43 2006 (43FD048B)
f4907000 f4975400   mrxsmb   mrxsmb.sys   Tue Jan 18 18:26:50 2005 (41EDE18A)
f499e000 f49c8a00   rdbss    rdbss.sys    Wed Oct 27 15:13:57 2004 (418047D5)
f49c9000 f49ead00   afd      afd.sys      Tue Aug 03 20:14:13 2004 (41107EB5)
f49eb000 f4a0bf00   ipnat    ipnat.sys    Wed Sep 29 12:28:36 2004 (415B3714)
f4a0c000 f4a33c00   netbt    netbt.sys    Tue Aug 03 20:14:36 2004 (41107ECC)
f4a34000 f4a8bd80   tcpip    tcpip.sys    Thu Jan 12 16:28:12 2006 (43C7103C)
f4a8c000 f4a9e400   ipsec    ipsec.sys    Tue Aug 03 20:14:27 2004 (41107EC3)
f6bff000 f6c0f480   nvarm    nvarm.sys    Tue May 25 12:58:00 2004 (40B3CF78)
f6c10000 f6cfb000   nvmcp    nvmcp.sys    Tue May 25 12:58:01 2004 (40B3CF79)
f6cfb000 f6d1e980   portcls  portcls.sys  Tue Aug 03 20:15:47 2004 (41107F13)
f6d1f000 f6d7fb00   nvapu    nvapu.sys    Tue May 25 12:58:02 2004 (40B3CF7A)
f6d80000 f6db3200   update   update.sys   Tue Aug 03 19:58:32 2004 (41107B08)
f6e54000 f6e64e00   psched   psched.sys   Tue Aug 03 20:04:16 2004 (41107C60)
f6e69000 f6e6bf80   mouhid   mouhid.sys   Fri Aug 17 10:47:57 2001 (3B7D82FD)
f6e85000 f6e87580   hidusb   hidusb.sys   Fri Aug 17 11:02:16 2001 (3B7D8658)
f6e8d000 f6ea3680   ndiswan  ndiswan.sys  Tue Aug 03 20:14:30 2004 (41107EC6)
f6ea4000 f6eb7900   parport  parport.sys  Tue Aug 03 19:59:04 2004 (41107B28)
f6ed5000 f6f0fe80   yk51x86  yk51x86.sys  Mon Sep 19 05:33:14 2005 (432EDA3A)
f6f10000 f6f23780   VIDEOPRT VIDEOPRT.SYS Tue Aug 03 20:07:04 2004 (41107D08)
f6f24000 f729f340   nv4_mini nv4_mini.sys Thu Mar 09 14:40:42 2006 (4410CB0A)
f72a0000 f72c2680   ks       ks.sys       Tue Aug 03 20:15:20 2004 (41107EF8)
f72c3000 f72e5e80   USBPORT  USBPORT.SYS  Tue Aug 03 20:08:34 2004 (41107D62)
f72f6000 f72f8900   Dxapi    Dxapi.sys    Fri Aug 17 10:53:19 2001 (3B7D843F)
f732a000 f732dc80   mssmbios mssmbios.sys Tue Aug 03 20:07:47 2004 (41107D33)
f7356000 f7370580   Mup      Mup.sys      Tue Aug 03 20:15:20 2004 (41107EF8)
f7371000 f739da80   NDIS     NDIS.sys     Tue Aug 03 20:14:27 2004 (41107EC3)
f739e000 f742a480   Ntfs     Ntfs.sys     Tue Aug 03 20:15:06 2004 (41107EEA)
f742b000 f7441780   KSecDD   KSecDD.sys   Tue Aug 03 19:59:45 2004 (41107B51)
f7442000 f7453f00   sr       sr.sys       Tue Aug 03 20:06:22 2004 (41107CDE)
f7454000 f7472780   fltmgr   fltmgr.sys   Tue Aug 03 20:01:17 2004 (41107BAD)
f7473000 f748c080   SI3112r  SI3112r.sys  Thu Jan 12 09:56:56 2006 (43C6B488)
f748d000 f74a4480   atapi    atapi.sys    Tue Aug 03 19:59:41 2004 (41107B4D)
f74a5000 f74bc800   SCSIPORT SCSIPORT.SYS Tue Aug 03 19:59:39 2004 (41107B4B)
f74bd000 f74db880   ftdisk   ftdisk.sys   Fri Aug 17 10:52:41 2001 (3B7D8419)
f74dc000 f74eca80   pci      pci.sys      Tue Aug 03 20:07:45 2004 (41107D31)
f74ed000 f751ad80   ACPI     ACPI.sys     Tue Aug 03 20:07:35 2004 (41107D27)
f761c000 f7624c00   isapnp   isapnp.sys   Fri Aug 17 10:58:01 2001 (3B7D8559)
f762c000 f763ae80   ohci1394 ohci1394.sys Tue Aug 03 20:10:05 2004 (41107DBD)
f763c000 f7649000   1394BUS  1394BUS.SYS  Tue Aug 03 20:10:03 2004 (41107DBB)
f764c000 f7656500   MountMgr MountMgr.sys Tue Aug 03 19:58:29 2004 (41107B05)
f765c000 f7668c80   VolSnap  VolSnap.sys  Tue Aug 03 20:00:14 2004 (41107B6E)
f766c000 f7674e00   disk     disk.sys     Tue Aug 03 19:59:53 2004 (41107B59)
f767c000 f7688200   CLASSPNP CLASSPNP.SYS Tue Aug 03 20:14:26 2004 (41107EC2)
f76ac000 f76ba100   usbhub   usbhub.sys   Tue Aug 03 20:08:40 2004 (41107D68)
f76bc000 f76cab80   drmk     drmk.sys     Tue Aug 03 20:07:54 2004 (41107D3A)
f774c000 f7754700   netbios  netbios.sys  Tue Aug 03 20:03:19 2004 (41107C27)
f775c000 f7764700   wanarp   wanarp.sys   Tue Aug 03 20:04:57 2004 (41107C89)
f776c000 f7774880   Fips     Fips.SYS     Fri Aug 17 15:31:49 2001 (3B7DC585)
f777c000 f7784d80   HIDCLASS HIDCLASS.SYS Tue Aug 03 20:08:18 2004 (41107D52)
f778c000 f7797e00   STREAM   STREAM.SYS   Tue Aug 03 20:07:58 2004 (41107D3E)
f77cc000 f77d4a00   processr processr.sys Tue Aug 03 19:59:14 2004 (41107B32)
f77dc000 f77e7e00   nvax     nvax.sys     Tue May 25 12:58:00 2004 (40B3CF78)
f77ec000 f77f6380   imapi    imapi.sys    Tue Aug 03 20:00:12 2004 (41107B6C)
f77fc000 f7808180   cdrom    cdrom.sys    Tue Aug 03 19:59:52 2004 (41107B58)
f780c000 f781a080   redbook  redbook.sys  Tue Aug 03 19:59:34 2004 (41107B46)
f781c000 f782bd80   serial   serial.sys   Tue Aug 03 20:15:51 2004 (41107F17)
f782c000 f7838e00   i8042prt i8042prt.sys Tue Aug 03 20:14:36 2004 (41107ECC)
f783c000 f7848880   rasl2tp  rasl2tp.sys  Tue Aug 03 20:14:21 2004 (41107EBD)
f784c000 f7856200   raspppoe raspppoe.sys Tue Aug 03 20:05:06 2004 (41107C92)
f785c000 f7867d00   raspptp  raspptp.sys  Tue Aug 03 20:14:26 2004 (41107EC2)
f786c000 f7874900   msgpc    msgpc.sys    Tue Aug 03 20:04:11 2004 (41107C5B)
f787c000 f7885f00   termdd   termdd.sys   Tue Aug 03 19:58:52 2004 (41107B1C)
f788c000 f7895480   NDProxy  NDProxy.SYS  Fri Aug 17 10:55:30 2001 (3B7D84C2)
f789c000 f78a2200   PCIIDEX  PCIIDEX.SYS  Tue Aug 03 19:59:40 2004 (41107B4C)
f78a4000 f78a8900   PartMgr  PartMgr.sys  Fri Aug 17 15:32:23 2001 (3B7DC5A7)
f78ac000 f78b1f00   VClone   VClone.sys   Tue Feb 14 02:45:33 2006 (43F1D0ED)
f7914000 f7918500   watchdog watchdog.sys Tue Aug 03 20:07:32 2004 (41107D24)
f7924000 f7928280   usbohci  usbohci.sys  Tue Aug 03 20:08:34 2004 (41107D62)
f792c000 f7932800   usbehci  usbehci.sys  Tue Aug 03 20:08:34 2004 (41107D62)
f793c000 f7940b00   AnyDVD   AnyDVD.sys   Fri Feb 24 12:04:05 2006 (43FF82D5)
f7944000 f794b000   GEARAspiWDM GEARAspiWDM.sys Tue Feb 01 19:19:49 2005 (420062F5)
f794c000 f794d000   fdc      fdc.sys      unavailable (00000000)
f7954000 f795a000   kbdclass kbdclass.sys Tue Aug 03 19:58:32 2004 (41107B08)
f795c000 f7960880   TDI      TDI.SYS      Tue Aug 03 20:07:47 2004 (41107D33)
f796c000 f7970580   ptilink  ptilink.sys  Fri Aug 17 10:49:53 2001 (3B7D8371)
f7974000 f7978080   raspti   raspti.sys   Fri Aug 17 10:55:32 2001 (3B7D84C4)
f797c000 f7981a00   mouclass mouclass.sys Tue Aug 03 19:58:32 2004 (41107B08)
f79bc000 f79c1000   flpydisk flpydisk.sys Tue Aug 03 19:59:24 2004 (41107B3C)
f79cc000 f79d1200   vga      vga.sys      Tue Aug 03 20:07:06 2004 (41107D0A)
f79d4000 f79d8a80   Msfs     Msfs.SYS     Tue Aug 03 20:00:37 2004 (41107B85)
f79dc000 f79e3880   Npfs     Npfs.SYS     Tue Aug 03 20:00:38 2004 (41107B86)
f79ec000 f79f2c80   avg7rsxp avg7rsxp.sys Wed Feb 22 14:40:37 2006 (43FD0485)
f79f4000 f79fa180   HIDPARSE HIDPARSE.SYS Tue Aug 03 20:08:15 2004 (41107D4F)
f79fc000 f7a03b80   usbccgp  usbccgp.sys  Tue Aug 03 20:08:45 2004 (41107D6D)
f7a04000 f7a09780   pd016cmd pd016cmd.sys Thu Jun 20 21:35:35 2002 (3D12D747)
f7a0c000 f7a12a80   PD016Blk PD016Blk.sys Thu Jun 20 21:20:39 2002 (3D12D3C7)
f7a2c000 f7a2f000   BOOTVID  BOOTVID.dll  Fri Aug 17 10:49:09 2001 (3B7D8345)
f7a30000 f7a32880   SiWinAcc SiWinAcc.sys Mon Nov 01 09:21:31 2004 (41868CBB)
f7ae4000 f7ae6280   rasacd   rasacd.sys   Fri Aug 17 10:55:39 2001 (3B7D84CB)
f7b10000 f7b13c80   serenum  serenum.sys  Tue Aug 03 19:59:06 2004 (41107B2A)
f7b14000 f7b16980   gameenum gameenum.sys Tue Aug 03 20:08:20 2004 (41107D54)
f7b18000 f7b1a580   ndistapi ndistapi.sys Fri Aug 17 10:55:29 2001 (3B7D84C1)
f7b1c000 f7b1db80   kdcom    kdcom.dll    Fri Aug 17 10:49:10 2001 (3B7D8346)
f7b1e000 f7b1f100   WMILIB   WMILIB.SYS   Fri Aug 17 11:07:23 2001 (3B7D878B)
f7b36000 f7b37200   ElbyDelay ElbyDelay.sys Mon Apr 11 22:41:20 2005 (425B89B0)
f7b3c000 f7b3d100   swenum   swenum.sys   Tue Aug 03 19:58:41 2004 (41107B11)
f7b40000 f7b41280   USBD     USBD.SYS     Fri Aug 17 11:02:58 2001 (3B7D8682)
f7b66000 f7b67a80   ParVdm   ParVdm.SYS   Fri Aug 17 10:49:49 2001 (3B7D836D)
f7b70000 f7b71380   avgtdi   avgtdi.sys   Sat Sep 03 14:38:58 2005 (431A4222)
f7b82000 f7b83f00   Fs_Rec   Fs_Rec.SYS   Fri Aug 17 10:49:37 2001 (3B7D8361)
f7b84000 f7b85080   Beep     Beep.SYS     Fri Aug 17 10:47:33 2001 (3B7D82E5)
f7b86000 f7b87080   mnmdd    mnmdd.SYS    Fri Aug 17 10:57:28 2001 (3B7D8538)
f7b88000 f7b89080   RDPCDD   RDPCDD.sys   Fri Aug 17 10:46:56 2001 (3B7D82C0)
f7b8a000 f7b8b0c0   avg7rsw  avg7rsw.sys  Sun Sep 18 14:09:31 2005 (432E01BB)
f7b9e000 f7b9fc00   kerneld  kerneld.wnt  Mon Jul 25 05:31:46 2005 (42E505E2)
f7ba8000 f7ba9100   dump_WMILIB dump_WMILIB.SYS Fri Aug 17 11:07:23 2001 (3B7D878B)
f7be4000 f7be4d00   pciide   pciide.sys   Fri Aug 17 10:51:49 2001 (3B7D83E5)
f7c2a000 f7c2ad00   dxgthk   dxgthk.sys   Fri Aug 17 10:53:12 2001 (3B7D8438)
f7d27000 f7d27c00   audstub  audstub.sys  Fri Aug 17 10:59:40 2001 (3B7D85BC)
f7d66000 f7d66b80   Null     Null.SYS     Fri Aug 17 10:47:39 2001 (3B7D82EB)

Unloaded modules:
b6217000 b6224000   DMusic.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f7b2a000 f7b2c000   splitter.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b9376000 b9384000   swmidi.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b6104000 b6127000   aec.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b6e93000 b6ebd000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b6e93000 b6ebd000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b6e93000 b6ebd000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b7b5f000 b7b89000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b7b5f000 b7b89000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b7e29000 b7e53000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b8aab000 b8ad5000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b9dfe000 b9e28000   kmixer.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f7c59000 f7c5a000   drmkaud.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f771c000 f7729000   DMusic.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
b9ec8000 b9eeb000   aec.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
ba1b8000 ba1c6000   swmidi.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f7b26000 f7b28000   splitter.sys
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f79c4000 f79c9000   Cdaudio.SYS
    Timestamp: unavailable (00000000)
    Checksum:  00000000
f7ae0000 f7ae3000   Sfloppy.SYS
    Timestamp: unavailable (00000000)
    Checksum:  00000000
Closing open log file c:\debuglog.txt
Question by:danieldubois
  • 3
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LVL 57

Expert Comment

ID: 16293142
I did not look at your logs, because I would recommend to check your hardware first:
Is your power supply still strong enough for the new CPU? How many watts and what "combined power" does it have (see what's printed on it)?
Please note that in such a case (p- supply too weak) the pc will report many things when bluescreening, none will be the true error.
LVL 18

Expert Comment

ID: 16293684
my remedies in likelyhood of helping you:

Agree wholeheartedly with McKnife; Replace PSU with on that retails for over $100 us, and weighs at least 10 lbs. 450 watt, 500 watt.  Does it exhaust hot air?  They do not last forever in a power system.

Memory- is it the right speed? It is a year old.  Memory does not go 'bad' unless subjected to shocks, power supply events, peripherial component damage; but sometimes slips from being tolerant to the speed you desire and WILL run stable at lower speeds.  Build a floppy/bootcd with memtest, the one and only from www.memtest86.com.  Replace memory or try at lower speeds.  Read forum postings specific to your memory brand on the net regarding setting the memory extended speed variables very carefully.  It is nolonger the case that the automatic are the best values.

Heat? is the CPU fan doing it.  don't necessaryily trust the OEM fan.

Motherboard choice.  You have mainboard from a company that I rate at one or two clicks above the bottom.  Other opinions there will vary, however since the MB price difference betwen OK and BEST are frequently about 50% I usually opt toward the better boards. Supermicro, Asus, Abit, are on the high end.

Author Comment

ID: 16296845
The power supply is a high-end Ultra X-Connect.  It is 500W.

As stated in the original post, I have run memtest86 a few times.  I've also swapped the two memory chips in and out into varying slots, and have BSoDs with either one, or both, chips.

The CPU fan is blowing, FWIW.  As stated in the original post, none of the BIOS alarms, nor the Everest Home monitoring software, give any indication that the CPU is overheating.  (Im fact, I've never seen it above the 40s.)

There is some indication that my graphics card has a flaw.  Details about that <a href="http://forums.us.dell.com/supportforums/board/message?board.id=dim_monitor&message.id=51752"> issue I have posted on</a> in the dell.com forums.  Could that device cause this problem?


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LVL 18

Expert Comment

ID: 16304097
discconect all your peripherials, and change the video card out for a more basic one.  See if you get more BSOD

Author Comment

ID: 16307986
Yeah, I've been running with an old ATI graphics card for the last 24 hous with no crashes, so that seems to have been the problem.

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