I need help!

For 2 weeks ago, my computer suddenly shuts down when I'm playing a game. It said that there is something about my BIOS and CPU. After that, it runs super-slow and automatically shuts down after 5-10 mins after I turn it on. I asked someone to fix it and the same problem occured. The difference is that my main was fix because the fixer told me it was burnt and after the shutdown the computer doesn't turn super-slow and doesn't automatically shuts down except when I'm playing games for more than 5-7 mins. I love playing games, so please help me!

My DxDiagnosis

System Information

Time of this report: 8/19/2009, 13:46:48
Machine name: HA
Operating System: Windows XP Professional (5.1, Build 2600) Service Pack 3 (2600.xpsp.080413-2111)
Language: English (Regional Setting: English)
System Manufacturer: Gigabyte Technology Co., Ltd.
System Model: G31M-ES2C
BIOS: Award Modular BIOS v6.00PG
Processor: Intel(R) Pentium(R) 4 CPU 2.80GHz
Memory: 2038MB RAM
Page File: 380MB used, 3550MB available
Windows Dir: C:WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode

DxDiag Notes

DirectX Files Tab: No problems found.
Display Tab 1: No problems found.
Sound Tab 1: No problems found.
Music Tab: No problems found.
Input Tab: No problems found.
Network Tab: No problems found.

DirectX Debug Levels

Direct3D: 0/4 (n/a)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

Display Devices

Card name: Intel(R) G33/G31 Express Chipset Family
Manufacturer: Intel Corporation
Chip type: Intel(R) GMA 3100
DAC type: Internal
Device Key: EnumPCIVEN_8086&DEV_29C2&SUBSYS_D0001458&REV_10
Display Memory: 384.0 MB
Current Mode: 1024 x 768 (32 bit) (75Hz)
Monitor: Plug and Play Monitor
Monitor Max Res: 1600,1200
Driver Name: igxprd32.dll
Driver Version: 6.14.0010.4864 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 8/24/2007 10:22:52, 57344 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
VDD: n/a
Mini VDD: igxpmp32.sys
Mini VDD Date: 8/24/2007 10:22:56, 5776928 bytes
Device Identifier: {D7B78E66-6A82-11CF-E864-0AF0B1C2CB35}
Vendor ID: 0x8086
Device ID: 0x29C2
SubSys ID: 0xD0001458
Revision ID: 0x0010
Revision ID: 0x0010
Video Accel:
Deinterlace Caps: n/a
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Not Available
DDraw Test Result: Not run
D3D7 Test Result: Not run
D3D8 Test Result: Not run
D3D9 Test Result: Not run

Sound Devices
Description: Realtek HD Audio output
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIOFUNC_01&VEN_10EC&DEV_0883&SUBSYS_1458C603&REV_1000
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: RtkHDAud.sys
Driver Version: 5.10.0000.5874 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 6/24/2009 23:07:43, 5095936 bytes
Other Files:
Driver Provider: Realtek Semiconductor Corp.
HW Accel Level: Full
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: Yes, Yes
I3DL2(tm) Listen/Src: Yes, Yes
Sensaura(tm) ZoomFX(tm): No
Registry: OK
Sound Test Result: Not run

Sound Capture Devices

Description: Realtek HD Audio Input
Default Sound Capture: Yes
Default Voice Capture: Yes
Driver Name: RtkHDAud.sys
Driver Version: 5.10.0000.5874 (English)
Driver Attributes: Final Retail
Date and Size: 6/24/2009 23:07:43, 5095936 bytes
Cap Flags: 0x0
Format Flags: 0x0

DirectMusic

DLS Path: C:WINDOWSSYSTEM32driversGM.DLS
DLS Version: 1.00.0016.0002
Acceleration: n/a
Ports: Microsoft Synthesizer, Software (Not Kernel Mode), Output, DLS, Internal, Default Port
Microsoft MIDI Mapper [Emulated], Hardware (Not Kernel Mode), Output, No DLS, Internal
Microsoft GS Wavetable SW Synth [Emulated], Hardware (Not Kernel Mode), Output, No DLS, Internal
Registry: OK
Test Result: Not run

DirectInput Devices

Device Name: Mouse
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a

Device Name: Keyboard
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a

Poll w/ Interrupt: No
Registry: OK

----------------------------
DirectPlay Service Providers
----------------------------
DirectPlay8 Modem Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 Serial Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 IPX Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 TCP/IP Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
Internet TCP/IP Connection For DirectPlay - Registry: OK, File: dpwsockx.dll (5.03.2600.5512)
IPX Connection For DirectPlay - Registry: OK, File: dpwsockx.dll (5.03.2600.5512)
Modem Connection For DirectPlay - Registry: OK, File: dpmodemx.dll (5.03.2600.5512)
Serial Connection For DirectPlay - Registry: OK, File: dpmodemx.dll (5.03.2600.5512)

DirectPlay Voice Wizard Tests: Full Duplex: Not run, Half Duplex: Not run, Mic: Not run
DirectPlay Test Result: Not run
Registry: OK

-------------------
DirectPlay Adapters
-------------------
DirectPlay8 Serial Service Provider: COM1
DirectPlay8 TCP/IP Service Provider: Local Area Connection - IPv4 -

-----------------------
DirectPlay Voice Codecs
-----------------------
Voxware VR12 1.4kbit/s
Voxware SC06 6.4kbit/s
Voxware SC03 3.2kbit/s
MS-PCM 64 kbit/s
MS-ADPCM 32.8 kbit/s
Microsoft GSM 6.10 13 kbit/s
TrueSpeech(TM) 8.6 kbit/s

-------------------------
DirectPlay Lobbyable Apps
-------------------------

------------------------
Disk & DVD/CD-ROM Drives
------------------------
Drive: C:
Free Space: 34.1 GB
Total Space: 40.0 GB
File System: NTFS
Model: SAMSUNG HD161GJ

Drive: E:
Free Space: 110.2 GB
Total Space: 112.6 GB
File System: NTFS
Model: SAMSUNG HD161GJ

Drive: D:
Model: ASUS CRW-5232A4
Driver: c:windowssystem32driverscdrom.sys, 5.01.2600.5512 (English), 4/14/2008 00:10:48, 62976 bytes

--------------
System Devices
--------------
Name: Intel(R) G33/G31 Express Chipset Family
Device ID: PCIVEN_8086&DEV_29C2&SUBSYS_D0001458&REV_103&13C0B0C5&0&10