Best way to test RAM for errors

If you are using four pieces of RAM,There could be various ways to check for a possibilities of errors.
I have provided two alternative techniques and a solution for it.

Download Memtest86 and create a bootable CD.

Memtest86 does a fair job. It runs several test patterns through the RAM.

If a piece of RAM passes these tests, swap it with another DIMM and continue your tests.

Remember do not replace the RAM when the system is ON. Turn it Off and then replace the new one otherwise a serious breakdown of  your computer can occur and may harm the system .

repeat this for all the iterations. and be careful while handling RAM stick if your are new to computer hardware repairs or troubleshooting.

An alternative way is Ultra-X’s RAM Stress Test Pro 2, which is a self-booting diagnostic plug-in card.

This card uses a comprehensive set of test patterns to assess your memory, and we’ve found that

it finds bad pieces of RAM that other testers miss.

Keep in mind that it may not actually be a stick of RAM that’s bad.

The problem may in fact be a bad DIMM slot. If all the 4  pieces of RAM pass the test, you may have to rerun them in each individual slot on your motherboard.

Finally, your motherboard’s BIOS usually sets RAM timing by reading the SPD setting on the module.

If the SPDs are set too aggressively (we’ve seen this), it may cause problems.

You should consider going into the BIOS and manually tweaking settings such as your CAS latency to a more conservative setting.

If  you find these troubleshooting difficult or if you are not techie then please don’t mess with the hardware, It’s better to go to a local hardware technician.