Nedal0 :
Temps in excess of 80°C is worse already. The Alienware M17x R4 is known to get quite hot but 80°C is nowhere near right at all.
What is the Specs ? Whats your room Temp during use, What Temp monitoring software are you using ?
On another note, make sure you have all and the latest BIOS updates for your Model as quite a couple of people have had the heat issue for various reasons and a BIOS update has rectified it for majority of them. Others had to remove certain software to fix the issue.
It's about 60°C when idle.
My specs are:
Microsoft Windows 7 Professional 64-bit SP1
CPU
Intel Core i7 3820QM @ 2.70GHz
Ivy Bridge 22nm Technology
RAM
32.0 GB Dual-Channel DDR3 @ 798MHz (11-11-11-28)
Motherboard
Alienware M17xR4 (U3E1)
Graphics
Generic PnP Monitor (1920x1080@60Hz)
AMD Radeon HD 7970M
Intel HD Graphics 4000
Hard Drives
699GB W62SGS7Y (RAID)
Optical Drives
HL-DT-ST DVDRWBD CA40N
Audio
Sound Blaster Recon3Di
It only reaches excess of 80°C.
If this means anything, the side of the laptop with the fan that's going is always warm, but the side of the laptop with the fan that's not going always feels cool.
I'm using Speccy to monitor my temps, and my room temp is usually about 30°C.