what does these errors mean ? what should i do now ? pls help

[nafezrafee]

my config :
ASUS H81M-K Motherboard
Intel Core i5 4590 3.3 ghz
8GB DDR3 RAM Team Elite (single module)
Sapphire R7 260x 2GB DDR5
PSU : 450 watt thermaltake

i was getting random bluescreen errors, while playing games like GTA v, watchdogs,fifa 15.
i decided to check my ram via memtest86. 3 passes already found 2 errors . what should i do now ? i want to know that whether these errors are only ram or mobo ?

[David (PassMark)]

They are likely RAM errors.
You could try the RAM in a different slot. But otherwise swap the RAM stick for a new one and see if the errors go away.

[nafezrafee]

I have tried each slot. Crash, random restarts occuring since i bought this pc. BSOD & RSOD'd occured most. Now memtest86 found 37 errors . pass 2 and pass 4 both found errors in test 9. Pls help . thanks in advance.

[David (PassMark)]

What else can I say?
You tested the RAM, its bad, so replace it.

[nafezrafee]

I did this to another slot but this time pass2 found no error!! Why ? But i tried to play games and still crashes.