6h doesn't say anything, you need 8 passes at minimum with MemTest86+ & a photo of the result is requested.
I said before in that post (-: that I already did a 6h memtest
That I'm aware there are 3 memory tests, the built-in, memtest86 & memtest86+. With the built-in it is just finishing and waiting, with memtest86 it could go incredibly fast but not memtest86 is not as proper as memtest86+.
Per diagnostics test it differs of the speed for finishing and result, because each test uses a different algorithm for testing.
Please fill in your system specs
Please follow this tutorial
and download the tool. The tool will give you detailed information about your system specs, please fill in your system specs more completely including PSU, cooling and other used stuff like mouse, keyboard, monitor, case, etc.
The PSU, cooling and other stuff are NOT mentioned in the tool.
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