Memtest86 errors on first test.

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TheGreatGlacier

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Jun 7, 2016
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A little while back I upgraded my PC to an i7-6700k, Z170-k and 16GB of DDR4 RAM, but a little after I upgraded I started getting insane blue screens for 8 hours straight and then it stopped and I though I had fixed it, but now it has started again but this time with different errors and I couldn't even boot up my PC and instead of focusing it on being a software issue I looked at my hardware and saw that the power supply I had was only a 500W PSU, and when I went to check how much my system needed it told me I needed a 600-650W psu and so I got one from a friend of mine, and I am now able to boot up my PC, but I was still getting blue screens, way less frequently but then I found this program thing thats run off BIOS to test my RAM and on my first pass I got 2 errors. Now this is my first time using this, is that really bad? or should I try and restart and see if it persists.
 
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kanewolf


It depends on the memory. If you bought a set of DIMMs then you have to return them to the manufacturer as a set. So it depends on how you bought them and if you want to try and get...
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popatim

popatim

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I use memtest overnight on every build I make and if it can't run 10 hrs without an error - the ram gets replaced.
I will tell you right now, clean power helps. I've had customers whose pc's pc pass at my place and fail at theirs. Install a UPS and now they pass too. This happened to my own cousin and he went from BSoD daily to not having one in a year and a half now.
 
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molletts

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Jun 16, 2009
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Pulling together what both Kanewolf and Popatim have said - firstly, if Memtest can't last a night without any errors, there is a fault which may be the RAM but can be caused by electrical noise in the power making the RAM malfunction.

Exactly what power supply do you have (i.e. what make and model is it)? A poor-quality power supply can give dirty power even if your mains is good; a good-quality one should give a stable supply unless your mains is exceptionally dirty. (Many UPSes, for example, put out horrendously-noisy "mains" when they're running on batteries but PCs continue to work just fine. Try running a cheap audio amplifier on a UPS and you'll hear what I mean!)

I doubt that you were short of power with the 500W one while just running Memtest - the graphics card(s) would have been idle and even the CPU wouldn't have been pushed especially hard. The system was probably only using about 100W.
 
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TheGreatGlacier

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Jun 7, 2016
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I'm restarting the test, and if I get the error again should I try and just remove one of the sticks and seeing which one is damaged? or should I just get a new set of sticks.
 
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johnbl

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Nov 4, 2012
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also, sometimes just a faulty power strip can cause power fluctuations. I talked to a person that had problems when his refrigerator motor kicked on.

also, be sure to make certain your BIOS is up to date and has no BIOS overclock.
while you are testing the ram. (you might also check the memory timing settings in the BIOS to see if they are correct)




 
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kanewolf

kanewolf

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It depends on the memory. If you bought a set of DIMMs then you have to return them to the manufacturer as a set. So it depends on how you bought them and if you want to try and get warranty. You will probably want to get a replacement SET either through warranty or purchase. In that case it doesn't really matter if one is good or not. You won't use it.
 
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