Windows XP Crash !

Hi ! I recently built a computer from a used motherboard and cpu. The Graphic card is Brand new. Everything else is from my old setup (worked like a charm before the little hardware update).

Here's my setup:

Thermaltake TR2-500W PSU (Brand New)
Athlon 64 3400 + (Newcastle Core) (Used OEM)
Gigabyte GA-K8NE (Used)
2.5 Gig DDR400 PC3200 (1 gig Kingston, 1 gig Samsung, 512 megs Samsung)
Saphire Radeon HD4830 512 Megs (Brand New)
Soundblaster Audigy SE

So here is the problem ! Sometimes, the computer crashes, and automatically reboots. I unchecked the option to auto reboot the computer. Since then,when it happens, I lose the picture and the sound starts stuttering (The computer still runs) and I must press the reset switch to stop it.

I tried looking for high temperatures in the system but none are too High. I ran a stability test for 8 hours. The result was ROCK SOLID ! I tried Warming the CPU but after 1 hour the temperature was not higher than 61 C. I even looped 30 crysis benchmarks test and the system made it thru without any worries (except for low framerate, all the settings were at HIGH).

The problem always happens when I am surfing the net and chatting with friend on Windows live mssenger. But it doesn't happen very often !

I looked in the event viewer but only noticed ATI logs that my brother also gets on his PC (He doesn't have the same bug as I)

Except for that little bug everything works great ! I even got 31 200 points in 3D Mark 03 ! (ran the test thrice and even tried 06 once)

- So i figured the graphic card seems to work great ! (GPU TEMP = 50 at full load)
- Same for the CPU and RAM (I haven't tested RAM with memtest but I had no problem with them before)
- As for the motherboard, physically she looks like she's new and no transistors are rusted or anything.
- Other parts were working well before.

So I looked at one of the Mini Dump I got from the second crash !

It goes like this:


Microsoft (R) Windows Debugger Version 6.11.0001.404 X86
Copyright (c) Microsoft Corporation. All rights reserved.


Loading Dump File [C:\WINDOWS\Minidump\Mini032009-01.dmp]
Mini Kernel Dump File: Only registers and stack trace are available

Symbol search path is: SRV*c:\symbols*http://msdl.microsoft.com/download/symbols
Executable search path is:
Windows XP Kernel Version 2600 (Service Pack 2) UP Free x86 compatible
Product: WinNt, suite: TerminalServer SingleUserTS
Built by: 2600.xpsp_sp2_rtm.040803-2158
Machine Name:
Kernel base = 0x804d7000 PsLoadedModuleList = 0x805531a0
Debug session time: Fri Mar 20 13:01:25.390 2009 (GMT-4)
System Uptime: 0 days 1:33:55.583
Loading Kernel Symbols
...............................................................
..........................................................
Loading User Symbols
Loading unloaded module list
..................
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

Use !analyze -v to get detailed debugging information.

BugCheck 7F, {0, 0, 0, 0}

Unable to load image ati2mtag.sys, Win32 error 0n2
*** WARNING: Unable to verify timestamp for ati2mtag.sys
*** ERROR: Module load completed but symbols could not be loaded for ati2mtag.sys
*** WARNING: Unable to verify timestamp for ati2cqag.dll
*** ERROR: Module load completed but symbols could not be loaded for ati2cqag.dll
Probably caused by : ati2mtag.sys ( ati2mtag+1bda0e )

Followup: MachineOwner
---------

kd> kd> !analyze -v
Numeric expression missing from '> !analyze -v'
kd> !analyze -v
*******************************************************************************
* *
* Bugcheck Analysis *
* *
*******************************************************************************

UNEXPECTED_KERNEL_MODE_TRAP (7f)
This means a trap occurred in kernel mode, and it's a trap of a kind
that the kernel isn't allowed to have/catch (bound trap) or that
is always instant death (double fault). The first number in the
bugcheck params is the number of the trap (8 = double fault, etc)
Consult an Intel x86 family manual to learn more about what these
traps are. Here is a *portion* of those codes:
If kv shows a taskGate
use .tss on the part before the colon, then kv.
Else if kv shows a trapframe
use .trap on that value
Else
.trap on the appropriate frame will show where the trap was taken
(on x86, this will be the ebp that goes with the procedure KiTrap)
Endif
kb will then show the corrected stack.
Arguments:
Arg1: 00000000, EXCEPTION_DIVIDED_BY_ZERO
Arg2: 00000000
Arg3: 00000000
Arg4: 00000000

Debugging Details:
------------------


BUGCHECK_STR: 0x7f_0

TRAP_FRAME: a97ebf30 -- (.trap 0xffffffffa97ebf30)
ErrCode = 00000000
eax=00000000 ebx=a97ec020 ecx=00000000 edx=00000000 esi=a97ebfbc edi=88dc8400
eip=b98cfa0e esp=a97ebfa4 ebp=a97ec008 iopl=0 nv up ei pl zr na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010246
ati2mtag+0x1bda0e:
b98cfa0e f7f1 div eax,ecx
Resetting default scope

CUSTOMER_CRASH_COUNT: 1

DEFAULT_BUCKET_ID: DRIVER_FAULT

PROCESS_NAME: explorer.exe

LAST_CONTROL_TRANSFER: from 80596567 to 804f8900

STACK_TEXT:
a97ebecc 80596567 0000007f b98cfa0e a97ebfbc nt!KeBugCheck+0x14
a97ebf24 8053d3ef a97ebf30 a97ec008 b98cfa0e nt!Ki386CheckDivideByZeroTrap+0x41
a97ebf24 b98cfa0e a97ebf30 a97ec008 b98cfa0e nt!KiTrap00+0x83
WARNING: Stack unwind information not available. Following frames may be wrong.
a97ec008 b987572d a97ec020 00000027 89bcac50 ati2mtag+0x1bda0e
a97ec030 b9871af0 89bcac50 a97ec060 a97ec0c8 ati2mtag+0x16372d
a97ec050 b971e7e8 89bcac50 a97ec060 00000010 ati2mtag+0x15faf0
a97ec070 b989514f 89bc1350 a97ec088 0000e09c ati2mtag+0xc7e8
a97ec0c8 b98a0872 89be5cd4 0000003f a97ec0dc ati2mtag+0x18314f
a97ec0e8 b98a9e60 88e6872c 0000e09c 00015f90 ati2mtag+0x18e872
a97ec158 b98988cb 88e6872c 88e687dc a97ec170 ati2mtag+0x197e60
a97ec178 b98b694a 88e6872c 88f42740 89ed92d0 ati2mtag+0x1868cb
a97ec19c b98b6c47 88e9e80c a97ec1dc a97ec1e7 ati2mtag+0x1a494a
a97ec1e8 b98b335b 88e9e80c b9903c18 b989c700 ati2mtag+0x1a4c47
a97ec2b0 b98926dd a97ec2c8 a97ec33c 00000000 ati2mtag+0x1a135b
a97ec2e0 b9722caf 89be5cd0 a97ec32c a97ec33c ati2mtag+0x1806dd
a97ec30c b9722d78 00000000 a97ec32c 0000001c ati2mtag+0x10caf
a97ec348 b971c0b4 89bc1350 00000009 00000001 ati2mtag+0x10d78
a97ec364 b971cd37 89bc1350 00000000 e1e0fde0 ati2mtag+0xa0b4
a97ec378 bf092247 89bc1350 89bc1350 a97ec3a0 ati2mtag+0xad37
a97ec37c 89bc1350 89bc1350 a97ec3a0 7fffffff ati2cqag+0x2d247
a97ec380 89bc1350 a97ec3a0 7fffffff e1c00000 0x89bc1350
a97ec384 a97ec3a0 7fffffff e1c00000 e1c007b4 0x89bc1350
a97ec388 7fffffff e1c00000 e1c007b4 00000000 0xa97ec3a0
a97ec3a0 a97ec3ac a97ec50c 00000160 00007e00 0x7fffffff
a97ec3a4 a97ec50c 00000160 00007e00 0c000000 0xa97ec3ac
a97ec3ac 00000000 0c000000 0b37bf80 00000000 0xa97ec50c


STACK_COMMAND: kb

FOLLOWUP_IP:
ati2mtag+1bda0e
b98cfa0e f7f1 div eax,ecx

SYMBOL_STACK_INDEX: 3

SYMBOL_NAME: ati2mtag+1bda0e

FOLLOWUP_NAME: MachineOwner

MODULE_NAME: ati2mtag

IMAGE_NAME: ati2mtag.sys

DEBUG_FLR_IMAGE_TIMESTAMP: 49891f8b

FAILURE_BUCKET_ID: 0x7f_0_ati2mtag+1bda0e

BUCKET_ID: 0x7f_0_ati2mtag+1bda0e

Followup: MachineOwner
---------

kd> lmvm ati2mtag
start end module name
b9712000 b9ab6000 ati2mtag T (no symbols)
Loaded symbol image file: ati2mtag.sys
Image path: ati2mtag.sys
Image name: ati2mtag.sys
Timestamp: Tue Feb 03 23:54:35 2009 (49891F8B)
CheckSum: 00362479
ImageSize: 003A4000
Translations: 0000.04b0 0000.04e4 0409.04b0 0409.04e4
kd> .trap 0xffffffffa97ebf30
ErrCode = 00000000
eax=00000000 ebx=a97ec020 ecx=00000000 edx=00000000 esi=a97ebfbc edi=88dc8400
eip=b98cfa0e esp=a97ebfa4 ebp=a97ec008 iopl=0 nv up ei pl zr na pe nc
cs=0008 ss=0010 ds=0023 es=0023 fs=0030 gs=0000 efl=00010246
ati2mtag+0x1bda0e:
b98cfa0e f7f1 div eax,ecx




I Hope you can help me ! And sorry for the extremely long post !