why does the system often get restarted automaticlly?

To: fedora-list@xxxxxxxxxx
Subject: why does the system often get restarted automaticlly?
From: "yz wang" <wangyz0513@xxxxxxxxx>
Date: Fri, 30 Mar 2007 16:50:21 +0800
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Reply-to: For users of Fedora <fedora-list@xxxxxxxxxx>

Hardware of my computer: Pentium 4 cpu 3.20GHz, RAM 2.00GB, Monitor NVIDIA GeForce FX 5600, two 80GB harddisks, one with windows and one with fc6.

3D desktop is off.

It often crashes or restarts. The latest restarting occurs while only 3 web browsers are open. How can I solve this problem? Thanks!

Follow-Ups:
- Re: why does the system often get restarted automaticlly?
  - From: aragonx
- Re: why does the system often get restarted automaticlly?
  - From: Manuel Arostegui Ramirez
- Re: why does the system often get restarted automaticlly?
  - From: Ed Greshko