Windows 7: Memtest86+ displaying Operation error?

Trying to help someone out in the Crashes and Debugging forum.Windows 7 - Blue Screen Error. They're trying to run Memtest86+ but they're getting, for want of a better description, a screen error.



They've posted a screenshot here.

The wording behind the hotspot is 12K e820 off.

Can anyone shed any light on this? Its something I've never seen before and a Google search for "Memtest86+ error" gives all the results you would expect, regarding Memtest86+ "error", re: Ram. But nothing about an actual "Memtest86+ error"!

That is just saying memory (12k) at address (e820) is OFF, or wrong. Memtest could not proceed. Have them pull all but one stick and repeat.


Ken J

so my motherboard have 4 ram slots and i have a dual ram set and you say i must shift both of them to the other slots. am i understand correctly_?. or must i shift only one ram to the empty slot_?

Try with only one physical stick only in the first slot.

If the error persists, replace that stick with the other module and try again in the same slot.

If the error still persists, place one stick in the third slot and try again.

If one stick works yet the other dosen't - you have a faulty module of RAM. If neither sticks work, then you have a faulty DIMM slot/mobo.

*Note that when using only one stick - not all DIMM SLOTS will allow the machine to POST (start)

ok thanks a lot now i am going to test each ram and i will report the results. : )

Good luck

hi there. i tried with each of them but i faced with the same problem. the test doesn't start.

i have just tried windows memory diagnostics tools as an advice of Technical service and as a result no error found.

Try with one stick only in the third slot.

Is it possible to manually enter your RAM specs/timings in the BIOS?

If you can, I would. (There should timings on stickers on the RAM modules.)

But as it stands, it sounds like the motherboard may possibly on it's way it out (if it's old) or a dud (if it's new).


I wouldn't put to much faith in the Windows Tool tbh.

1) i have bought this desktop last week : ).

2) yes i tried with the first and the third slots with each RAM.

3) i don't know how to manually enter my RAM specs/timings in the BIOS. but i can try of course

4) the technical service says contrast of what you say. i mean don't put much faith on Memtest86 and windows tool will be more reliable. and the reason of the error of Memtest will be caused by the software which i am using. on the other hand, i used this Memtest86 on different 2 computers and it worked properly.