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Apple Computing Products:
macOS - Notebook Hardware
Affordable SSD replacement for 2015 Macbook Air 13" - Please help me verify this option will work?
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<blockquote data-quote="MacInWin" data-source="post: 1823251" data-attributes="member: 396914"><p>I'll take your thoughts in the same order:</p><p></p><p>1. The USB itself may be fine, but something in your system is not the same as those other machines and is causing the installation to fail. Until/unless we find that difference, changing SSDs won't make any difference. Just refresh me, have you used Disk Utility from the booted USB stick to erase/format the internal SSD? I wonder if it is some incompatibility in the present format and what the installer is expecting. You won't see that if you boot from the USB and just try to read the internal because in that case it's not critical, but installing Mojave forces the SSD to be converted to APFS format, and that may well be what is failing.</p><p></p><p>2. No. That's not how SSDs work. There are no mechanical parts, just memory chips that work or don't. About the only "intermittent" nature might be heat, but you drove the chips hard playing back a video with no ill effects, so I don't think heat is an issue. And if the software controlling them finds a bad set of locations, it automatically disables them permanently and activates a back up set left unused for just that purpose. That swap takes place silently so you don't even know it happened. You said you could play hours of video from the SSD, which pretty much eliminates any "threshold" being hit. Every SSD I've ever heard of failing died/dead/gone with no warning. Yours allows you to read from it except when trying to boot from it. That fact alone tells me pretty strongly that it's not the SSD.</p><p></p><p>3. Not likely, again because any power fluctuation in power to the interface should have manifested during the video playback test. And if it were to be a power issue, that will make the new SSD fail in exactly the same way, so that's not a solution for you in any case.</p><p></p><p>4. OK, that's a bummer.</p><p></p><p>5. Have you actually tried to get OWC to ship and been denied? According to the OWC website:I added the emphasis. That indicates at least some international delivery. If you are at an APO/FPO address, I think they ship there, too. In any event, you'd be better paying the Apple price and getting something KNOWN to work rather than cobbling something dodgy together in a circumstance already dicey.</p><p></p><p>But it's your money and your machine. You need to do what you feel is best for you. If you replace the SSD and that solves the issue, that's great! Good luck sorting it out.</p></blockquote><p></p>
[QUOTE="MacInWin, post: 1823251, member: 396914"] I'll take your thoughts in the same order: 1. The USB itself may be fine, but something in your system is not the same as those other machines and is causing the installation to fail. Until/unless we find that difference, changing SSDs won't make any difference. Just refresh me, have you used Disk Utility from the booted USB stick to erase/format the internal SSD? I wonder if it is some incompatibility in the present format and what the installer is expecting. You won't see that if you boot from the USB and just try to read the internal because in that case it's not critical, but installing Mojave forces the SSD to be converted to APFS format, and that may well be what is failing. 2. No. That's not how SSDs work. There are no mechanical parts, just memory chips that work or don't. About the only "intermittent" nature might be heat, but you drove the chips hard playing back a video with no ill effects, so I don't think heat is an issue. And if the software controlling them finds a bad set of locations, it automatically disables them permanently and activates a back up set left unused for just that purpose. That swap takes place silently so you don't even know it happened. You said you could play hours of video from the SSD, which pretty much eliminates any "threshold" being hit. Every SSD I've ever heard of failing died/dead/gone with no warning. Yours allows you to read from it except when trying to boot from it. That fact alone tells me pretty strongly that it's not the SSD. 3. Not likely, again because any power fluctuation in power to the interface should have manifested during the video playback test. And if it were to be a power issue, that will make the new SSD fail in exactly the same way, so that's not a solution for you in any case. 4. OK, that's a bummer. 5. Have you actually tried to get OWC to ship and been denied? According to the OWC website:I added the emphasis. That indicates at least some international delivery. If you are at an APO/FPO address, I think they ship there, too. In any event, you'd be better paying the Apple price and getting something KNOWN to work rather than cobbling something dodgy together in a circumstance already dicey. But it's your money and your machine. You need to do what you feel is best for you. If you replace the SSD and that solves the issue, that's great! Good luck sorting it out. [/QUOTE]
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Apple Computing Products:
macOS - Notebook Hardware
Affordable SSD replacement for 2015 Macbook Air 13" - Please help me verify this option will work?
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