Acer 4715z heat soon

[!!!joy]

hey guys,i am using acer 4715z laptop and it get heated very soon
1.It has one fan at back side and it is working but perhaps not with much speed
2.do laptop come with two fans ,one for whole computer and other for graphics card
3.My hard disk and ram was getting heated more so i replaced hdd and and added 1gb ram in extra as i was having only 1gb ram in my laptop
4.plz suggest me prices of graphics card
pllz help me i in great trouble ,i thank you in advance

[Maq.H]

There are some main causes that makes your laptop overheat. For example use of your laptop intensively, making the hard disk, the central processing unit (CPU) and video systems operate at high capacity. If you do a lot of game on your laptop, or run many programs at a time such as Photoshop or Dreamweaver, they are causing the CPU to work some overtime. I note in particular my lappy heating when a virus scan is running. So, the harder your computer laptop does, the temperature of your CPU will be high. Also if you keep your PC laptop into a hot, hot room, near a radiator / heater etc. contributes to overheating.

You need to prevent your laptop from all these situations. Try keeping your computer laptop on a cool, hard surface. Keep all vents clear of dirt, lint, dust and fibers. Only connect USB devices when you need to use them. Use energy-saving features of your computer laptop, avoids overheating and also extend the life of the battery.

You can get some more info from these posts:
Acer aspire 5315 overheating issue
Overheating A215-S7437