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Apple Computing Products:
macOS - Desktop Hardware
Problem Finally Solved... Bad RAM
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<blockquote data-quote="morerice" data-source="post: 1639100" data-attributes="member: 341632"><p>I am the original poster of this thread. And I have an interesting follow up update to my bad RAM problems. </p><p></p><p>After I isolated the one bad RAM chip in my computer (as I reported in the first post of this thread), everything ran great for several weeks on the remaining 3 4Gb RAM chips. And I was extremely happy to have my computer not crashing at all... </p><p></p><p>And then one day last week, after weeks of not a single crash, a random crash out of nowhere. I rebooted and continued working. But the next day another random crash happened. This time I was unable to reboot from my internal hard drive. I couldn't even get the Recovery option to show up. So I booted from an external backup. The backup drive ran fine for a few hours, and during this time I ran TechTool and tested my RAM. Sure enough, the existing RAM repeatedly failed the tests.</p><p></p><p>Next, I began working to fix my internal hard drive, and then another crash. When I tried to reboot, neither the internal or external drives were bootable. I figured the bad RAM was corrupting data on my hard drives and rendering them unbootable.</p><p></p><p>At this point I decided to replace ALL the old RAM with brand new RAM from Crucial (ordered through Amazon, 2 8Gb kits for 16 Gb total at $65 each or $130 total). It took me some time to get my 3rd backup copied back onto my internal SSD. But now my computer is now back up and running perfectly. I have done a number of RAM tests and all have passed perfectly.</p><p></p><p>I can't quite figure out why my original RAM started failing after over 6 years of working great. I'm keeping my fingers crossed the new RAM will run without problems.</p></blockquote><p></p>
[QUOTE="morerice, post: 1639100, member: 341632"] I am the original poster of this thread. And I have an interesting follow up update to my bad RAM problems. After I isolated the one bad RAM chip in my computer (as I reported in the first post of this thread), everything ran great for several weeks on the remaining 3 4Gb RAM chips. And I was extremely happy to have my computer not crashing at all... And then one day last week, after weeks of not a single crash, a random crash out of nowhere. I rebooted and continued working. But the next day another random crash happened. This time I was unable to reboot from my internal hard drive. I couldn't even get the Recovery option to show up. So I booted from an external backup. The backup drive ran fine for a few hours, and during this time I ran TechTool and tested my RAM. Sure enough, the existing RAM repeatedly failed the tests. Next, I began working to fix my internal hard drive, and then another crash. When I tried to reboot, neither the internal or external drives were bootable. I figured the bad RAM was corrupting data on my hard drives and rendering them unbootable. At this point I decided to replace ALL the old RAM with brand new RAM from Crucial (ordered through Amazon, 2 8Gb kits for 16 Gb total at $65 each or $130 total). It took me some time to get my 3rd backup copied back onto my internal SSD. But now my computer is now back up and running perfectly. I have done a number of RAM tests and all have passed perfectly. I can't quite figure out why my original RAM started failing after over 6 years of working great. I'm keeping my fingers crossed the new RAM will run without problems. [/QUOTE]
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Apple Computing Products:
macOS - Desktop Hardware
Problem Finally Solved... Bad RAM
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