Have had a couple of my VM's crash randomly over the past couple of days. Decided I should run a Memtest, as the issues only cropped up when I had 3-4 of my VM's on, using 20G of my systems 32G ram. With caching, Linux only showed about 300 MB free.

 

Upon memtest, got an absolute ton of red line, failures. I have not run a hardware diagnosis in ages, as I have not needed to. The original method was each stick of RAM, one at a time, in each slot on the motherboard, as the issue could be RAM or the slot itself. Is this still the only(or best) method? Does memtest show me which sticks had the failure when testing all 4 at once? A snapshot of the initial test in process is below. At the 40% complete mark, I had something like 10,000 errors.

 

Any advice will be well received. Looking to get this back up ASAP.

 

mcelog is a common tool for determining which DIMM is involved, but that relies on the BIOS providing good information. I am not sure these are even in unRAID, but if not they can be added.

 

The practice of testing a single DIMM at a time comes from the complexity of getting good info. It is very simple to isolate the faulty component. With more than one DIMM installed, the memory could be interleaved making part determination difficult.

Turns out Memtest seems to run insanely quicker than 6-7 years ago when I last probably tinkered with any of it, haha.

 

I was able to isolate the single stick in a matter of about 20 minutes. Now to run the remaining 3 through a few extended passes for the feel good and process this RMA.

 

Crucial 4x8GB kit is what I had purchased, 2 years ago.

Crucial 4x8GB kit is what I had purchased, 2 years ago.

 

That RAM should come with a Lifetime warranty.

 

LIMITED LIFETIME WARRANTY – CRUCIAL® MEMORY

Micron Consumer Products Group (Micron CPG) warrants to the original end customer ("you") that its Crucial-branded memory products are free from defects in material and workmanship affecting form, fit, and function. Any claim alleging that any product fails to conform to the foregoing warranty may be made only by the customer who purchased such product and only while such customer owns such product. Micron CPG, at its option, will repair, replace, or provide an in-store credit or refund of either the original purchase price or fair market value, whichever is lower, of any product that is determined by Micron CPG to be defective during the warranty period.

 

With respect to Crucial Ballistix® memory products, Micron CPG warrants to the original end customer that its products are free from defects in material and workmanship affecting form, fit, and function. All such products sold will meet the datasheet specifications as found on its web page (www.crucial.com/ballistix). Any claim made alleging that any product fails to conform to the foregoing warranty may be made only by the end customer who purchased such product and only while such customer owns such product. Micron CPG, at its option, will repair, replace, or provide a credit or refund of either the original purchase price or fair market value, whichever is lower, of any product that is determined by Micron CPG to be defective. Some system configurations may not be designed to operate or may not operate at the published Crucial Ballistix memory speed and timing settings. Overclocking, running your system faster than the speed for which it was designed or the published speed, or otherwise modifying your system timing may result in damage to computer components, and Micron CPG disclaims any and all liability for such damage.

Crucial 4x8GB kit is what I had purchased, 2 years ago.

 

That RAM should come with a Lifetime warranty.

 

LIMITED LIFETIME WARRANTY – CRUCIAL® MEMORY

Micron Consumer Products Group (Micron CPG) warrants to the original end customer ("you") that its Crucial-branded memory products are free from defects in material and workmanship affecting form, fit, and function. Any claim alleging that any product fails to conform to the foregoing warranty may be made only by the customer who purchased such product and only while such customer owns such product. Micron CPG, at its option, will repair, replace, or provide an in-store credit or refund of either the original purchase price or fair market value, whichever is lower, of any product that is determined by Micron CPG to be defective during the warranty period.

 

With respect to Crucial Ballistix® memory products, Micron CPG warrants to the original end customer that its products are free from defects in material and workmanship affecting form, fit, and function. All such products sold will meet the datasheet specifications as found on its web page (www.crucial.com/ballistix). Any claim made alleging that any product fails to conform to the foregoing warranty may be made only by the end customer who purchased such product and only while such customer owns such product. Micron CPG, at its option, will repair, replace, or provide a credit or refund of either the original purchase price or fair market value, whichever is lower, of any product that is determined by Micron CPG to be defective. Some system configurations may not be designed to operate or may not operate at the published Crucial Ballistix memory speed and timing settings. Overclocking, running your system faster than the speed for which it was designed or the published speed, or otherwise modifying your system timing may result in damage to computer components, and Micron CPG disclaims any and all liability for such damage.

 

Thanks.

 

Contacted support, rather painless process. Got a confirmation email within a few minutes, with instructions to send the defective stick back. Only thing I don't like is they say to use the original packaging. Yeah okay, I kept that. Chat support told me a bubble wrapped envelope would be fine. A minor annoyance having to contact them to clarify that.