New Apple MacBook Air 2010 Stripped Naked, Receives Low Repairability Score

jmke · 22nd October 2010, 10:40

The new MacBook Air is an exercise of proprietary engineering. While you can easily access everything once you remove the proprietary screws, you can't really replace any component with an off-the-shelf part, unless you source it from Apple or someone involved in Apple-based repair (*cough*). Most components - RAM included - are soldered to the logic board, preventing them from being replaced.

http://www.ifixit.com/Teardown/MacBo...eardown/3745/1

jmke · 22nd October 2010, 10:42

Quote:

The SSD unit appears to be assembled by Toshiba and is model number THNSNC064GMDJ.

complete custom design SSD

Stefan Mileschin · 22nd October 2010, 11:42

That custom made SSD looks like its a pain in the a.. to replace, since it's made only for these Macs.
It is one of the things I dislike about these new Macs

thorgal · 22nd October 2010, 12:16

JMicron controller

jmke · 22nd October 2010, 12:29

Quote:

Originally Posted by Stefan Mileschin

That custom made SSD looks like its a pain in the a.. to replace

cpu, gpu, ssd and memory are not replaceable at all, unless you bring a soldering gun.

Quote:

JMicron controller

where? this is using Toshiba's T6UG1XBG Solid State Drive controller, not JMIcron! http://benchmarkreviews.com/index.ph...1&limitstart=3

Apple SSD bench: http://arstechnica.com/apple/guides/...uestions.ars/2

Quote:

Using X-Bench, we saw the 128GB model—the APPLE SSD TS128C—give the following numbers:

Seq Uncached Write: 134MB/sec (4k blocks)
Seq Uncached Write: 158MB/sec (256k blocks)
Seq Uncached Read: 68.5MB/sec (4k blocks)
Seq Uncached Read: 165.8 MB/sec (256k blocks)

Random Uncached Write: 32.18MB/sec (4k)
Random Uncached Write: 116.5 (256k)
Random Uncached Read: 8.27 (4k)
Random Uncached Read: 108.56 (256k)

Random write of 32Mb/s at 4k is pretty darn impressive in my humble opinion

src: http://www.anandtech.com/bench/SSD/79

thorgal · 22nd October 2010, 12:45

Eh, don't know what's up but this is what I found :

http://www.anandtech.com/show/2968/i...the-125-ssds/6

Read elsewhere that Toshiba uses a custom JMF612 design.

Edit : found it : http://www.bit-tech.net/hardware/sto...buyers-guide/4

jmke · 22nd October 2010, 13:24

might be X-bench HDD test not up to snuff compared to IOMeter;
it doesn't seem to be the "A" version of the JMicron, which is a good thing.

the Benchmark review puts the SSDNOw+ also at the lower range of the performance ranking http://benchmarkreviews.com/index.ph...1&limitstart=7

but in my humble opinion, what's more important than performance?

reliability. I sincerely hope that these Toshiba controllers are up to snuff

22nd October 2010, 10:40	#1
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	New Apple MacBook Air 2010 Stripped Naked, Receives Low Repairability Score The new MacBook Air is an exercise of proprietary engineering. While you can easily access everything once you remove the proprietary screws, you can't really replace any component with an off-the-shelf part, unless you source it from Apple or someone involved in Apple-based repair (cough). Most components - RAM included - are soldered to the logic board, preventing them from being replaced. http://www.ifixit.com/Teardown/MacBo...eardown/3745/1 __________________ Last edited by jmke : 22nd October 2010 at 10:44.

22nd October 2010, 12:16	#4
thorgal [M] Reviewer Join Date: Sep 2005 Posts: 1,887	JMicron controller __________________

22nd October 2010, 12:45	#6
thorgal [M] Reviewer Join Date: Sep 2005 Posts: 1,887	Eh, don't know what's up but this is what I found : http://www.anandtech.com/show/2968/i...the-125-ssds/6 Read elsewhere that Toshiba uses a custom JMF612 design. Edit : found it : http://www.bit-tech.net/hardware/sto...buyers-guide/4 __________________ Last edited by thorgal : 22nd October 2010 at 12:48.

22nd October 2010, 13:24	#7
jmke Madshrimp Join Date: May 2002 Location: 7090/Belgium Posts: 79,021	might be X-bench HDD test not up to snuff compared to IOMeter; it doesn't seem to be the "A" version of the JMicron, which is a good thing. the Benchmark review puts the SSDNOw+ also at the lower range of the performance ranking http://benchmarkreviews.com/index.ph...1&limitstart=7 but in my humble opinion, what's more important than performance? reliability. I sincerely hope that these Toshiba controllers are up to snuff __________________

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22nd October 2010, 11:42	#3
Stefan Mileschin [M] Reviewer Join Date: May 2010 Location: Romania Posts: 148,553	That custom made SSD looks like its a pain in the a.. to replace, since it's made only for these Macs. It is one of the things I dislike about these new Macs