FFXIV Shuts down

Greetings!

I'm having an issue where, all of a sudden (randomly), FFXIV will shut down, and then my computer will go into the shut down sequence. This doesn't necessarily happen at CPU/GPU taxing moments, but has happened at all different times. Under load my CPU doesn't go above 70-75c so I know it isn't an overheat issue. I've checked event logs and I haven't seen anything out of the ordinary.

I've tried updating my graphics drivers and disabling anything unnecessary in the config and in services with no luck. Thanks for your help!

My system specs:

Windows Vista Home SP2
AMD A8-3850 APU
8GB DDR3 1333 RAM
1.5 Mbps internet connection (Metrocast)

Also:

-=-=-=-=-=-=- System Information -=-=-=-=-=-=-

Operating System Microsoft Windows Vista Home Premium Edition Service Pack 2 64bit (build 6002)
Processor AMD A8-3850 APU with Radeon(tm) HD Graphics
Number of Processors Logical Core Count 4 Physical Core Count 4
BIOS BIOS Date: 07/05/11 23:35:28 Ver: 04.06.05
Language English (Regional Setting: English)
Physical Memory 7668.539MB
Virtual Memory 2047.875MB
Page File 18940.566MB
Storage C:\ Hard Disk Drive Total Disk Space 931.511GB Free Disk Space 818.905GB
DirectX Version DirectX 11
Graphic Device(s) AMD Radeon HD 6550D
+Device \\.\DISPLAY1
+Chip ATI display adapter (0x9640)
+Maker Advanced Micro Devices, Inc.
+Video Memory 493.102 MB
+Shared Video Memory 3578.729 MB
+DAC Type Internal DAC(400MHz)
+Display Mode 1280 x 720 (32 bit) (60Hz)
+Driver aticfx64.dll,aticfx64.dll,aticfx64.dll,aticfx32,aticfx32,aticfx32,atiumd64.dll,atidxx64.dll,atidxx64.dll,atiumdag,atidxx32,atidxx32,atiumdva,atiumd6a.cap,atitmm64.dll
+Driver Version 8.17.0010.1091
+Driver Date 7/28/2011 5:39:14 PM
+Driver Language English
+Vertex Shader 3.0
+Pixel Shader 3.0
+Vertex Texture Supported
Sound Device(s) Realtek HDMI Output (ATI HDMI Audio)
+Device ID {1278B243-4029-45E6-8A72-5892596347A5}
+Device Name RtHDMIVX.sys
+Driver Version 6.00.0001.6358
+Driver Language English
+Driver Date 4/26/2011 11:26:00 AM
Sound Device(s) Digital Output Device (SPDIF) (2- High Definition Audio Device)
+Device ID {02AAFAFD-49D3-4947-A6C0-838961E37097}
+Device Name HdAudio.sys
+Driver Version 6.00.6002.18005
+Driver Language English
+Driver Date 4/11/2009 12:22:02 PM
Input Device(s) {6F1D2B60-D5A0-11CF-BFC7444553540000}
+Name Mouse
+Notes Axis 3 Button 8 Field of View 0
Input Device(s) {6F1D2B61-D5A0-11CF-BFC7444553540000}
+Name Keyboard
+Notes Axis 0 Button 128 Field of View 0
Input Device(s) {5C2F4670-B7C4-11E0-8001444553540000}
+Name GiGa HiD
+Notes Axis 0 Button 0 Field of View 0
Input Device(s) {5C3F9A20-B7C4-11E0-8002444553540000}
+Name GiGa HiD
+Notes Axis 0 Button 1023 Field of View 0
Input Device(s) {5C3FC130-B7C4-11E0-8003444553540000}
+Name GiGa HiD
+Notes Axis 0 Button 3 Field of View 0
Input Device(s) {5C3FC130-B7C4-11E0-8004444553540000}
+Name GiGa HiD
+Notes Axis 0 Button 0 Field of View 0

-=-=-=-=-=-=- Application Information -=-=-=-=-=-=-

AMD:CCC-AEMCapturingWindow
PCs/NPCs Disappearing - Google Chrome

-=-=-=-=-=-=- Install Information -=-=-=-=-=-=-

AIM 7
AMD VISION Engine Control Center
Adobe Flash Player 10 Plugin
Adobe Flash Player 11 ActiveX
Adobe Reader X (10.1.0)
Amazon MP3 Downloader 1.0.12
And Yet It Moves
Apple Application Support
Apple Software Update
Application Profiles
Atom Zombie Smasher
Auslogics Disk Defrag
Braid
CCC Help English
Catalyst Control Center - Branding
Catalyst Control Center Graphics Previews Common
Catalyst Control Center InstallProxy
Cogs
ControlCenter
Crayon Physics Deluxe
DAEMON Tools Lite
Definition update for Microsoft Office 2010 (KB982726)
Download Updater (AOL LLC)
FINAL FANTASY XIV
FlashGet 3.7
Game Booster
Google Gmail Notifier
Hammerfight
Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595)
Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484)
HydraVision
ImgBurn
It Belongs in an Ancient Ruin Version 1.1
Java Auto Updater
Java(TM) 6 Update 26
Machinarium
Microsoft .NET Framework 1.1
Microsoft .NET Framework 1.1 Security Update (KB2416447)
Microsoft Access 2010
Microsoft Office Access 2010
Microsoft Office Access MUI (English) 2010
Microsoft Office Access Setup Metadata MUI (English) 2010
Microsoft Office Proof (English) 2010
Microsoft Office Proof (French) 2010
Microsoft Office Proof (Spanish) 2010
Microsoft Office Proofing (English) 2010
Microsoft Office Shared MUI (English) 2010
Microsoft Office Shared Setup Metadata MUI (English) 2010
Microsoft Silverlight
Microsoft Visual C++ 2005 Redistributable
Microsoft Visual C++ 2008 Redistributable - x86 9.0.21022
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.17
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.4148
Microsoft Visual C++ 2008 Redistributable - x86 9.0.30729.6161
OpenAL
Osmos
QuickTime
Realtek Ethernet Controller Driver
Realtek HDMI Audio Driver for ATI
Revenge of the Titans
Seagate*DiscWizard
Security Update for Microsoft .NET Framework 3.5 SP1 (KB2416473)
Security Update for Microsoft Office 2010 (KB2289078)
Security Update for Microsoft Office 2010 (KB2289161)
Sid Meier's Civilization 4 Complete
Sid Meier's Civilization IV Colonization
Star Trek Online
StarCraft
Steam
Steel Storm: Burning Retribution
Super-Charger
System Requirements Lab CYRI
The Sims Complete Collection
Tom Clancy's H.A.W.X
Update for Microsoft .NET Framework 3.5 SP1 (KB963707)
Update for Microsoft Office 2010 (KB2202188)
Update for Microsoft Office 2010 (KB2494150)
Update for Microsoft Office 2010 (KB2523113)
VVVVVV
Visual Studio 2008 x64 Redistributables
Vuze
Watchtower Library 2010 - English
World of Tanks v.0.6.5

-=-=-=-=-=-=- Proccess Information -=-=-=-=-=-=-

C:\Program Files (x86)\AVG\AVG10\Identity Protection\agent\bin\avgidsmonitor.exe 00000CE8
C:\Program Files (x86)\AVG\AVG10\avgtray.exe 00000998
C:\Program Files (x86)\Common Files\Seagate\Schedule2\schedhlp.exe 00000770
C:\Program Files (x86)\DAEMON Tools Lite\DTLite.exe 00000BC8
C:\Program Files (x86)\Google\Gmail Notifier\gnotify.exe 00000980
C:\Program Files (x86)\Seagate\DiscWizard\DiscWizardMonitor.exe 00000470
C:\Program Files (x86)\Seagate\DiscWizard\TimounterMonitor.exe 00000394
C:\Program Files (x86)\SquareEnix\FINAL FANTASY XIV\ffxivconfig.exe 0000042C
C:\Program Files (x86)\iTunes\iTunesHelper.exe 00000AA0
C:\Users\Robbie\AppData\Local\Google\Chrome\Application\chrome.exe 00000270
C:\Windows\SysWOW64\rundll32.exe 00000CF0
C:\Windows\diskediag.exe 00000994

Try checking your Event viewer to get application crash/bug check logs. That may help people in determining what is the issue.

This is an example

Quote:

"The computer has rebooted from a bugcheck. The bugcheck was: 0x0000001e (0xffffffffc0000005, 0xfffff8000308fc5b, 0x0000000000000000, 0xffffffffffffffff). A dump was saved in: C:\Windows\MEMORY.DMP. Report Id: 082611-32417-01."

If the game has crashed, then it will be listed under "errors" and then error code 1000.

I looked under event viewer and FFXIV has never had an issue where it crashed. I'm wondering what's causing this then? I checked all my power settings and everything is at max, and sleep mode is disabled everywhere.

FWIW, I am getting this in the Event Viewer:
The process C:\Windows\system32\winlogon.exe (ROBBIE-PC) has initiated the power off of computer ROBBIE-PC on behalf of user Robbie-PC\Robbie for the following reason: No title for this reason could be found
Reason Code: 0x500ff
Shutdown Type: power off

I've been searching Google for fixes but am only finding mountains of people with the same issue. It is unrelated to FFXIV it seems, other than the fact that it only happens when I play FFXIV lol. I thought it may be an overheating issue but I have run stress tests and it doesn't do it. I am very confused.

A 0x500ff shutdown isn't just an issue. It can be anything. From a broken power button, over a virus to a broken power supply. Could also be a program that shuts down the system due to inactivity (in case you play with gamepad this can happen).