Sapphire HD4870 Toxic

As we know, Sapphire is one of the best manufacturers of the ATI graphics cards. ATI 4870 GPUs always get very hot under heavy load or overclocking ,but in this edition called Sapphire HD4870 Toxic , you can play you games and keep the temperature down thanks to the cooling system " Vapor X". This edition is an overclocked 4870 GPU which running at 780MHz for its core and 1000MHz 4.0Gbps for memory (1GB DDR5) . In real tests it keeps very close to NVIDIA GTX 280 and sometimes beats it specially at high resolutions.In 3D Mark06 Sapphire HD4870 Toxic got 3689 points at 1920x1200 ,but NVIDIA GTX 280 got 3647 points.In Crysis benchmark the Sapphire HD4870 Toxic got 26.8 points at 1920x1200 resolution ,4x Anti-Aliasing and high quality graphics,but NVIDIA GTX 280 got 38.4. Finally,you can see that Sapphire HD4870 Toxic is an exellent choice as it brings all the power needed for extreme gaming at reasonable price compared to Nvidia GTX 280 which is very expensive and gets hot quickly in addition to the great power required to run it.

How to know that you have a RAM problem

RAMs problems can't be easily specified because many other hardware problems have the same effect on you PC, but if you have a damaged RAM, you will note that the computer give you a blue screen suddenly and this will occur many times specially if you try to open a big application or game that consumes a large space in RAM.
If you have a copy of Linux operating system on a bootable CD or DVD you may find a memory test program or try to get one from the internet and use it to check your PC's RAM. If you find any errors then try to check each RAM alone if you have more than one,but the faulty one can't be repaired in most cases,so it's recommended to buy RAMs that have a long warranty or a live time warranty like Kingston to make sure that you won't pay more money on such hardware that can be easily damaged by heat.

Does your computer restart suddenly?

This problem maybe cause by viruses or an error but if the windows tells you that the computer restarted to de protected from hardware damage or tha there are errors in RAMs you should know that your RAMs are often well and the problem is in a new hardware you have connected to your PC ,but you may say that you didn't connect any new hardware ,then you should make sure that your power supply is working well as it mainly causes this problem.You should also make sure that your DVD/CD ROM is working well as if the mechanical parts of them stopped ,the windows will shut down at once to prevent the damage.