4 ms·

I have had exactly same issue, though with third party service. They replaced the screen, and when I came home it froze one time, and started beeping 3 times in

by Inviz 6y ago

I have had exactly same issue, though with third party service. They replaced the screen, and when I came home it froze one time, and started beeping 3 times indicating ram problems. Because it was iMac, i had a chance to rearrange RAMs to boot up but it still was freezing up at times. I ran memcheck, found errors, and then figured out which ram planks was faulty. The thing is that the issue started long before that, my Blender app would crash in tens of times a day, and same with Solidworks on windows. So yeah, i recommend running memtest and replacing ram if necessary.

segfaultbuserr 6y ago
I've fixed two MacBooks with "faulty" RAM for family friends, it was a funny experience... The first one just needed a cleanup and some new thermal pastes. But afterwards, when I was test driving the laptop, I found the machine started to crash randomly - the OS was a fresh install. And later, I found whenever I put the laptop on the metal chassis on my PC (it was on the same table), it could trigger a kernel panic. Oh no, did I accidentally shorted something on the motherboard to the chassis? I reopened the machine and reseated the board but it didn't solve the problem. I also tried to reproduce the problem with a multimeter probe, but it didn't work. I got the final breakthrough while searching the web using the laptop while lying on a sofa - whenever my lap kicked the bottom cover, it would crash instantly! The DIMMs came loose. Reseating it fixed the problem - the machine was previously dropped, which also explained the cracked plastic I saw on the battery. Coincidentally, one day later, another family friend (with absolute no relation or knowledge about the former one) sent me a message, showing a MacBook with random screen corruptions. I said "you're out of luck, better to get a replacement from Apple." Later, I was also told that screen corruption was not the only problem - whenever a spot near the keyboard was punched, it would promptly crash! I couldn't stop laughing, "Okay, just send it to me, it's a 5 minute fix..." And yes, the machine was previously dropped by kids. Nowadays, most MacBooks come with soldered RAMs. But if your machine has sockets, make sure to reseat the RAM and swap the slots first before declaring the death of your motherboard or your RAM.
- bzzzt 6y ago
  Seems Apple managed to eliminate a major source of defects by removing the DIMM connectors from the MacBooks.
  - barrkel 6y ago
    Or they couldn't figure out a way to make the slots more reliable (or thinner, I guess), and as a bonus locked in higher memory upgrade prices.
    - diamondo25 6y ago
      It also reduces the amount of space taken up by the connectors and such, and have a better testing suite without manual assembly, that can give false positives.
- dr-detroit 6y ago
  I have not seen one last very long without the battery swelling and mashing the keybiard / threatening to kill the user I sure wish I lived on your planet.

by Inviz 6y ago

segfaultbuserr 6y ago

I've fixed two MacBooks with "faulty" RAM for family friends, it was a funny experience... The first one just needed a cleanup and some new thermal pastes. But afterwards, when I was test driving the laptop, I found the machine started to crash randomly - the OS was a fresh install. And later, I found whenever I put the laptop on the metal chassis on my PC (it was on the same table), it could trigger a kernel panic. Oh no, did I accidentally shorted something on the motherboard to the chassis? I reopened the machine and reseated the board but it didn't solve the problem. I also tried to reproduce the problem with a multimeter probe, but it didn't work. I got the final breakthrough while searching the web using the laptop while lying on a sofa - whenever my lap kicked the bottom cover, it would crash instantly! The DIMMs came loose. Reseating it fixed the problem - the machine was previously dropped, which also explained the cracked plastic I saw on the battery. Coincidentally, one day later, another family friend (with absolute no relation or knowledge about the former one) sent me a message, showing a MacBook with random screen corruptions. I said "you're out of luck, better to get a replacement from Apple." Later, I was also told that screen corruption was not the only problem - whenever a spot near the keyboard was punched, it would promptly crash! I couldn't stop laughing, "Okay, just send it to me, it's a 5 minute fix..." And yes, the machine was previously dropped by kids. Nowadays, most MacBooks come with soldered RAMs. But if your machine has sockets, make sure to reseat the RAM and swap the slots first before declaring the death of your motherboard or your RAM.

bzzzt 6y ago
Seems Apple managed to eliminate a major source of defects by removing the DIMM connectors from the MacBooks.
- barrkel 6y ago
  Or they couldn't figure out a way to make the slots more reliable (or thinner, I guess), and as a bonus locked in higher memory upgrade prices.
  - diamondo25 6y ago
    It also reduces the amount of space taken up by the connectors and such, and have a better testing suite without manual assembly, that can give false positives.
dr-detroit 6y ago
I have not seen one last very long without the battery swelling and mashing the keybiard / threatening to kill the user I sure wish I lived on your planet.