IMac 27" (2013) won't work with Axiom Memory

Question

I purchased an iMac earlier this year from MacMall and although I intended to purchase my own memory, I fell victim to their "sweet deals" and opted for them to upgrade the memory. They replaced the stock 8gb memory with a 32gb kit.
I had problems as soon as it arrived and unfortunately delayed contacting them about support for it until I was past the 30 day warranty.
My original issue was that the computer recognized all 32gb but every hour or so it would randomly crash and reboot with no warning. I ran memory tests against the ram and it always came back saying it was working. I took the memory out and found they used the correct memory as far as the label shows and it is low voltage. I looked for solutions online and was unable to solve this issue. I contacted MacMall and of course they said to go to Apple or the manufacturer. I did find some others with the same issue but I figured by best bet was the manufacturer.
I reached out to Axiom and surprisingly their support is great and respond quickly. They immediately said they would ship out replacement memory. Which is great though it was pretty easy to get to this point so I assume they know of the issue. Once I received it I connected the 32gb they shipped out into the 4 banks on my iMac. It would not start up now. This is an even worse issue. I tried to use different slots and then I tried just two memory sticks in the top two slots which worked for the stock memory. No matter what I did it would not start up. I put the original memory back in and it worked fine.
I reached out to them and they sent another set. Itried this set and the same issue. It would not start up. I put my original memory back in and it starts fine and everything is working great.
Now my next steps are to wait for Axiom on another possible solution and to go to the Apple Store to see if they can test a different brand. When I originally spoke to someone at Apple they told me I should have purchased Crucial or Corsair. While I don't disagree I do not want to spend over $300 again for memory.
Anyone else have any ideas? I was thinking that perhaps there is a way to reset hardware with a command when trying to start your computer that is used to troubleshoot some issues but not sure if that could possibly be related here.

Answer 1

Well I went through the processes and wasted a ton of time. I have determined this iMac is just garbage. I ended up working with Axiom and they sent me three sets of memoryt replacements. All of them had the same result where once the RAM was installed, the iMac would not turn on. When I switched back to the original memory I noticed that it wouldn't start the first time and when I swapped memory slots it would work after that.
Axiom finally decided to refund me for the 32gb memory purchase after exhausting all of their support options. At this point, I went to Crucial since when I spoke with Apple support they confirmed that it could be the brand and I should opt for Crucial or a couple of other brands. I went ahead and ordered 16gb of memory from Crucial - I figured I would save some cash for now to test and confirm 16gb works.
I connected the two 8gb sticks they sent and I had the same results as the Axiom memory. I tried swapping to different slots but it refused to turn on with this memory. However, when I reverted back to the original Apple memory it would not start up with the original 8gb. I eventually was able to get the computer to start up but only when I connected a single 4gb stick of the original memory (which is what I am using to type up this post now).
I will try to turn it off again and connect the other original memory so at least I am at a useable 8gb. I am going to reach out to Apple support again and see if I can schedule to bring it in. I am not sure what sort of fix there would be and I looked into any type of firmwares available and possible resets (like PRAM) but I don't believe anything could help this. It is just very strange there could be a hardware issue that works with the original memory but nothing from any other vendors.