Vista HomePremium Rebooting with no error code

My system just started to reboot itself in the last 2weeks and can not seem to find any fault that is going on.

While on the system watching a movie or browsing the web the system just reboots for no reason. No logs were made in event logs or in Reliability Monitor (only shows diruptive shutdown).
I just changed the bios to restart after crash in the power management. Before I had it turned off.
I've cleaned out the system 3weeks ago, as my 3month maintance I usually do, so its not dust.

Can anyone give a clue what could be wrong? Its only a 3 year old system with current drivers and maintained periodically.

It still may be heat and dust.

D/l hwmonitor from www.cpuid.org and she how hot it gets.

What are you computer specs? Parts or model will do.

Welcome to the forum btw.

Gateway Model: LX6810
Operating System Genuine Microsoft® Windows Vista® Home Premium
Processor1 Intel® Core™2 Quad processor (up to 1333 MHz FSB)
Intel Core2 Duo processor (up to 1333 MHz FSB)
Intel Pentium® dual-core processor
Chipset NVIDIA® nForce® 720i (MCP7A-D)
Memory1 Up to 8 GB of DDR2 800 MHz SDRAM (dual-channel support, four DIMM slots)
Hard Drive1 Serial ATA hard disk up to 1 TB1 per 3.5-inch drive (two internal hard drive bays)
Two external, tool-free, swappable, 3.5-inch SATA drive bays with drive carriers.2
(The factory can only pre-populate the internal hard drive bays. The front swappable bays are available for expansion.)
Optical Drive1 Optical drive options:
Blu-ray™ and SuperMulti DVD burner combination drive
Blu-ray reader / SuperMulti DVD burner combination drive
SuperMulti drive with Labelflash™ technology
DVD-ROM drive
Media Card Reader Pop-up 15-in-one card reader with Smart Copy button, supporting:
CompactFlash® (Type I and II)
CF+™ Microdrive
Secure Digital™ (SD) Card
miniSD™ Card
MultiMediaCard (MMC)
MMCplus™
MMCmobile™
Reduced-Size MultiMediaCard (RS-MMC)
xD-Picture Card™
Memory Stick®
Memory Stick PRO™
Memory Stick Duo™
Memory Stick PRO Duo™
SmartMedia™
Media Control Interface Media Control Interface with full Media Center control, featuring:
Menu navigation
Media control
Volume control
Integrated IR Receiver
Expansion Bays Two external 5.25-inch
Two internal 3.5-inch (hard drive bays)
Two external, swappable, 3.5-inch SATA expansion bays with drive carriers
Graphics PCI Express® 2.0 ×16 graphics card support
Discrete card support for NVIDIA® and ATI™ graphic cards
Recommend NVIDIA cards to match NVIDIA chipset
TV Tuner Card1 Hybrid analog (NTSC/PAL/SECAM) and digital (DVB-T or ATSC format) TV tuner card, supporting hardware or software MPEG-2 stream encoding
Audio Optimized 2nd Generation Dolby Home Theater®3 audio enhancement, featuring:
Dolby® Digital
Dolby Pro Logic® IIx
Dolby Natural Bass
Dolby Headphone
Dolby Sound Space Expander
Dolby Digital Live technologies4
Embedded high-definition audio with 7.1-channel surround sound support
Network Support LAN: Gigabit Ethernet
WLAN: IEEE 802.11b/g1 (internal antenna option)
Modem1 56K ITU V.92, Wake-on-Ring ready
Pop-Up Front I/O Ports 15-in-1 media card reader
Two USB 2.0 ports1
Pop-Out Front I/O Ports IEEE 1394 port (6-pin)1
High-definition headphone and microphone jacks
RCA Analog Video/Audio Input Ports1
Other Front Features Smart Backup button
Power button with integrated LED
Rear I/O Ports Four USB 2.0 ports
Two PS/2 ports (keyboard and mouse)
Ethernet (RJ-45) LAN port
Six audio ports
All video (display) ports are on the graphics card
Add-In Card Slots One PCI Express 2.0 ×16
One PCI Express 2.0 ×1
Two PCI 2.0 conventional
Power Supply 500 watt
BIOS AMI PnP BIOS compatible with SMBIOS 2.4
System Compliance PC 2001
Dimensions (W × D × H) 17.7 × 7.5 × 19.0 inches (449 × 191 × 482 mm)
Certification FCC, CE, VCCI

Gateway LCD monitor

Temps too would be great.

CPUID HWMonitor Report
-------------------------------------------------------------------------
Binaries
-------------------------------------------------------------------------
HWMonitor version 1.1.9.0
Monitoring
-------------------------------------------------------------------------
Mainboard Model FMCP7AM (0x000001EB - 0x005FB66D)
LPCIO
-------------------------------------------------------------------------
LPCIO Vendor ITE
LPCIO Model IT8718
LPCIO Vendor ID 0x90
LPCIO Chip ID 0x8718
LPCIO Revision ID 0x7
Config Mode I/O address 0x2E
Config Mode LDN 0x4
Config Mode registers
00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F
00 00 00 00 00 00 00 00 04 00 00 00 00 00 00 00 00
10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
20 87 18 07 01 00 81 D3 3A 42 00 20 00 1C 00 00 00
30 01 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
40 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
50 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
60 0A 10 0A 00 00 00 00 00 00 00 00 00 00 00 00 00
70 00 02 00 00 04 04 00 00 00 00 00 00 00 00 00 00
Register space LPC, base address = 0x0A10

Hardware Monitors
-------------------------------------------------------------------------
Hardware monitor ITE IT87
Voltage 0 1.10 Volts [0x45] (CPU VCORE)
Voltage 1 2.98 Volts [0xBA] (VIN1)
Voltage 2 3.36 Volts [0xD2] (+3.3V)
Voltage 4 12.03 Volts [0xBC] (+12V)
Voltage 5 -8.58 Volts [0x86] (-12V)
Voltage 6 -4.48 Volts [0x46] (-5V)
Voltage 7 5.05 Volts [0xBC] (+5V VCCH)
Voltage 8 3.14 Volts [0xC4] (VBAT)
Temperature 0 29°C (84°F) [0x1D] (TMPIN0)
Temperature 1 36°C (96°F) [0x24] (TMPIN1)
Temperature 2 13°C (55°F) [0xD] (TMPIN2)
Fan 0 3184 RPM [0xD4] (FANIN0)
Fan PWM 0 0 pc [0x0] (FANPWM0)
Fan PWM 1 50 pc [0x40] (FANPWM1)
Fan PWM 2 0 pc [0x0] (FANPWM2)
Register space LPC, base address = 0x0A10

Hardware monitor ACPI
Temperature 0 18°C (64°F) [0xB60] (THRM)
Hardware monitor NVIDIA I/O
Temperature 0 75°C (167°F) [0x4B] (TMPIN0)
Hardware monitor NVIDIA NVAPI
Temperature 0 75°C (167°F) [0x4B] (TMPIN0)
Fan PWM 0 50 pc [0x32] (FANPWMIN0)

Processors
-------------------------------------------------------------------------
Number of processors 1
Number of threads 4
APICs
-------------------------------------------------------------------------
Processor 0
-- Core 0
-- Thread 0 0
-- Core 1
-- Thread 0 1
-- Core 2
-- Thread 0 2
-- Core 3
-- Thread 0 3
Processors Information
-------------------------------------------------------------------------
Processor 1 ID = 0
Number of cores 4 (max 4)
Number of threads 4 (max 4)
Name Intel Core 2 Quad Q8200
Codename Yorkfield
Specification Intel(R) Core(TM)2 Quad CPU Q8200 @ 2.33GHz
Package (platform ID) Socket 775 LGA (0x4)
CPUID 6.7.7
Extended CPUID 6.17
Core Stepping M1
Technology 45 nm
TDP Limit 95 Watts
Core Speed 2000.0 MHz
Multiplier x FSB 6.0 x 333.3 MHz
Rated Bus speed 1333.4 MHz
Stock frequency 2333 MHz
Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1, EM64T
L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
L2 cache 2 x 2048 KBytes, 8-way set associative, 64-byte line size
FID/VID Control yes
FID range 6.0x - 7.0x
Max VID 1.163 V


Thread dumps
-------------------------------------------------------------------------
CPU Thread 0
APIC ID 0
Topology Processor ID 0, Core ID 0, Thread ID 0
Type 01008005h
Max CPUID level 0000000Ah
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 1 thread(s)
Cache descriptor Level 1, I, 32 KB, 1 thread(s)
Cache descriptor Level 2, U, 2 MB, 2 thread(s)

CPU Thread 1
APIC ID 1
Topology Processor ID 0, Core ID 1, Thread ID 0
Type 01008005h
Max CPUID level 0000000Ah
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 1 thread(s)
Cache descriptor Level 1, I, 32 KB, 1 thread(s)
Cache descriptor Level 2, U, 2 MB, 2 thread(s)

CPU Thread 2
APIC ID 2
Topology Processor ID 0, Core ID 2, Thread ID 0
Type 01008005h
Max CPUID level 0000000Ah
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 1 thread(s)
Cache descriptor Level 1, I, 32 KB, 1 thread(s)
Cache descriptor Level 2, U, 2 MB, 2 thread(s)

CPU Thread 3
APIC ID 3
Topology Processor ID 0, Core ID 3, Thread ID 0
Type 01008005h
Max CPUID level 0000000Ah
Max CPUID ext. level 80000008h
Cache descriptor Level 1, D, 32 KB, 1 thread(s)
Cache descriptor Level 1, I, 32 KB, 1 thread(s)
Cache descriptor Level 2, U, 2 MB, 2 thread(s)

Storage
-------------------------------------------------------------------------
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x045E, product=0x00DD
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x046D, product=0xC52B
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x04EB, product=0xE030
USB Device USB Human Interface Device, class=0x00, subclass=0x00, vendor=0x0461, product=0x4D16
USB Device eHome Infrared Receiver (USBCIR), class=0x00, subclass=0x00, vendor=0x04EB, product=0xE033
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x046D, product=0x0A0C
USB Device USB Composite Device, class=0x00, subclass=0x00, vendor=0x0BDA, product=0x0152
Graphic APIs
-------------------------------------------------------------------------
API NVIDIA I/O
API NVIDIA NVAPI
Display Adapters
-------------------------------------------------------------------------
Display adapter 0
Name NVIDIA GeForce GT 120
Revision C1
Codename G96
Technology 65 nm
PCI device bus 2 (0x2), device 0 (0x0), function 0 (0x0)
Vendor ID 0x10DE (0x174B)
Model ID 0x0646 (0x9640)

Thanks for that.

Unfortunately its not showing what i'd like to know.

Can you run hwmonitor for a bit then just post the max temperature on the 4 cpu cores and the gpu?