Dell XPS m1530 Problem

Hello everyone,

i have a serious heat problem with my notebook, I bought it 1.5 years ago. The problem started after a half year later i bought this notebook. First time i thought it was virus or a trojan so i formatted the system.  However it didnt work. I formatted 3 times but its still the same. I have no problem first 15 minutes after i start the notebook. After 15 minutes the heat of notebook is getting high and make the cpu slower. For example i cannot watch hd movies its really slow. I cant even play simple old game. I play like in a slow motion mod. Heat makes it that slow. I was patient first times but i cant handle anymore so i decided to post this so i can maybe figure out the problem with your help.

My System

Processor - Intel® Core™ 2 Duo Processor T9300 (2.5GHz/800Mhz FSB, 6MB Cache)

System Color and LCD cover Pattern (PRODUCT) RED™

Memory 4GB Shared Dual Channel DDR2 SDRAM at 667MHz (2 Dimms)

LCD Screen & Camera Full Hi Definition(HD), glossy widescreen 15.4 inch LCD(1920x1200) & 2MP Camera

Video Card 256MB NVIDIA® GeForce® 8600M GT

Dell Printer Driver Windows Vista™ Premium

Hard Drive 320GB 5400RPM SATA Hard Drive

Operating System Genuine Windows Vista ® Home Premium Edition SP1

Optical Drive 8X CD/DVD Burner (DVD+/-RW) with double-layer DVD+R write capability

Sound Card Integrated Sound Blaster Audigy HD Software Edition

Wireless Network Card Intel Next-Gen Wireless-N Mini-card

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I hope this information enough to get ideas.

Hoping to hear from you guys.