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Mac Mini 2011-2012 w/ Internal Superdrive : SUCCESS !
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geeji
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PostPosted: Sat Feb 16, 2013 3:19 am    Post subject: Reply with quote

geeji wrote:
justbecause wrote:
the drive shows up in system report..... but it wouldn't accept the cd like the electronic door doesn't suck it in, i tried multiple drives even the one out of my new macbook pro late 2012.... all same issue.... i but the super drive in a usb enclosure works via usb.. leave the dvd loaded put it back in the mini, it reports the drive is empty.... yes i tried both sata ports.... hdd works on both sata ports.. seem like apple disables odd support on the sata ports.... i really dont know how...
At that point, we have identified only those differences (you vs me) between our 2 systems :
1) Mac Mini late 2012 instead or Mid 2011
2) OS X 10.8 or 10.8.2 instead of OS X 10.7
3) Matshita UJ-8A8 or Hitachi-LG GS30N instead of Sony Optiarc AD-5960S

Well, I finally managed to install Mountain Lion 10.8.2 on an external FW disk, boot from it, and then check that a DVD is properly swallowed/ejected by my internal AD-5960S.
See screen capture below.

So that eliminates (mostly) difference (2) above as a probable cause of your difficulties; but for the same reasons as previously discussed, remaining differences (1) and (3) seem equally improbable.
At that point, my recommendation is still to do a clean install of Mountain Lion 10.8.2.
Here is the way I did it (just in case there is a subtle dependency) :
A/ Using a Mac Mini (Late 2009) with internal ODD :
- format an external SATA disk within a FW800 enclosure as a single GUID partition
- install Mountain Lion 10.8.1 (Generic version bought on App Store)
- install Mountain Lion 10.8.2 Update Combo
- install Mountain Lion 10.8.2 Supplemental Update
- eject the HD

B/ Using the hacked Mac Mini (Mid 2011) with internal hacked ODD :
- reboot on the prepared Mountain Lion HD
- check the ODD swallows/ejects DVDs properly.

Note that the only reason I prepared the Mountain Lion disk on an other Mac Mini 2009 is to minimize the unavalaibility time of the (shared) Mac Mini 2011.
If a clean install of Mac OS X does not take care of the problem, we are back to some mechanical issue...

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Not Sure
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PostPosted: Sat Feb 23, 2013 10:08 pm    Post subject: Reply with quote

Hi All!

Anybody else trying this with a Late 2012 Mini?

Found this thread a while ago and because I think the Mac Mini is the most amazing form factor, once Apple put USB3 into the Mini, I finally bought a late 2012 i7 Mini with the idea of putting in a BluRay drive.

Here is what I learned so far:

Try your local Apple authorized service center to get hold of the parts.

This completely surprised me but with the exception of the case (the one on eBay is definitely cheaper), the other bits seemed WAY cheaper directly from my local authorized service center than what I could find on the web.


So I am sitting here with that Mini in bit and pieces all over my desk and I don't seem to be able to put the main board back in.

Story so far:

I have a Panasonic UJ167

I did NOT have to make cut #4 & cut #5 because this drive is flat, nothing sticks out.

Cut #6 I did not make as this thing looks very fragile and it was optional

Made cut #2 but it does NOT seem to be needed on a late 2012 i7 mini

Trying to put the main board in I hit resistance


A PRELIMINARY investigation shows that there a capacitor sitting on the board which ends up with its center about 5 mm under the optical drive at the SATA connector on the opposite side of the ribbon on that connector.

When I put the board on the table together with the drive and its frame it is REALLY hard so see if this capacitor JUST fits while sitting against the optical drive OR if it is JUST a LITTLE bit too tall by like 0.5mm or so.

Also the edge of the optical drive carrier on the opposite/other side of cut #1 the edge of the carrier seems to he 2 mm higher than the optical drive drive.

Anybody have any suggestions/ideas?

Did I do something wrong or does it simply not fit on a late 2012 i7 mini?


Last edited by Not Sure on Sun Feb 24, 2013 10:35 am; edited 1 time in total
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Not Sure
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PostPosted: Sun Feb 24, 2013 10:35 am    Post subject: Reply with quote

I am surprised that justbecause got this to fit because further investigation did reveal that capacitor to be in the way.

How do you upload a small image to this forum?
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mooblie
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PostPosted: Sun Feb 24, 2013 1:06 pm    Post subject: Reply with quote

Re: Image - the forum doesn't host images, you need to upload the image to a website or hosting service, and put its URL between [img] and [/img] tags.
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geeji
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PostPosted: Wed Feb 27, 2013 11:12 pm    Post subject: Reply with quote

Not Sure wrote:
Hi All!

Anybody else trying this with a Late 2012 Mini?

Found this thread a while ago and because I think the Mac Mini is the most amazing form factor, once Apple put USB3 into the Mini, I finally bought a late 2012 i7 Mini with the idea of putting in a BluRay drive.

Did I do something wrong or does it simply not fit on a late 2012 i7 mini


If you look at justbecause previous post, he used a 2012 Mac Mini too, and did not seem to have any mechanical fit issues, although he had an eject/insert problem.
Unfortunately, I do not have a 2012 Mac Mini, nor a UJ167.
The blu-ray UJ167 may be 1mm thicker than a standard Superdrive, which could explain your issue.
Note however that I had to slightly "nudge" the motherboard and the not yet screwed ODD holder before everything goes in nicely.

At that point, if you have ANY kind of 9.5mm Superdrive, I would give it a try in case the UJ167 is the problem.

Otherwise, put the ODD holder + ODD + mainboard OUTSIDE of the case, and see if they fit nicely or not.
That's doing that that I determined, after several iterations, all the cuts I needed.
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PostPosted: Thu Feb 28, 2013 12:11 pm    Post subject: Reply with quote

Hi,

Yes I read he used a 2012 Mac Mini. I did put all the parts on the table and I am 100% sure it does NOT fit in a 2012 i7 Mac Mini.

There are no cuts you can make in the ODD which will fix the problem in this case. You need to cut the optical drive OR move the capacitor.

I have not yet measured the thickness of the UJ167 and I don't have another 9.5mm drive.

I guess I should post a picture. What image hosting service is recommended? Never used such a service before.
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geeji
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PostPosted: Thu Feb 28, 2013 8:09 pm    Post subject: Reply with quote

I am almost 90% sure your problem is the UJ167.
You did not make cut #4 & #5 because in the UJ167 the metal case continues "between the (non) protuding parts".
Without those cuts, an ODD WON'T fit.
Only way to be sure would be to measure the depth of the drive from the slot to the back : with a Superdrive, after cuts #4 & #5, the depth should be at least 5mm less than in your UJ167.
I am sorry, I am not at home presently, and thus cannot give you the corresponding dimensions.

At that point, your choice is either to switch back to a Superdrive, or find a way to carefully make the equivalent of cuts #4 & #5 to your Blu-ray drive near the slot.
And AFAIK, the problem is the same on 2012 and 2011 Mac Mini.

I apologize for encouraging you to try the Blu-ray path, which I could not test myself. They are so few 9.5mm Blu-ray ODD that we cannot even hope for one which would fit better Crying or Very sad
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Not Sure
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PostPosted: Fri Mar 01, 2013 8:01 am    Post subject: Reply with quote

geeji wrote:
I am almost 90% sure your problem is the UJ167.
You did not make cut #4 & #5 because in the UJ167 the metal case continues "between the (non) protuding parts".
Without those cuts, an ODD WON'T fit.
Only way to be sure would be to measure the depth of the drive from the slot to the back : with a Superdrive, after cuts #4 & #5, the depth should be at least 5mm less than in your UJ167.
I am sorry, I am not at home presently, and thus cannot give you the corresponding dimensions.

At that point, your choice is either to switch back to a Superdrive, or find a way to carefully make the equivalent of cuts #4 & #5 to your Blu-ray drive near the slot.
And AFAIK, the problem is the same on 2012 and 2011 Mac Mini.

I apologize for encouraging you to try the Blu-ray path, which I could not test myself. They are so few 9.5mm Blu-ray ODD that we cannot even hope for one which would fit better Crying or Very sad


Thanks for your reply and don't worry trying this is entirely my responsibility.

I looked at your picture again and I am not sure what I am looking at.

The UJ167 is entirely flat at the front end (slot side) and the gap there between the ODD frame and the drive is at most 1mm, if that.

on the back (connector side) the drive is flush with the ODD frame if the drive sticks out of the ODD frame at all, it is not more than 0.5mm


exactly like it looks in step28 here:

http://www.ifixit.com/Guide/Mac+mini+Model+A1347+Optical+Drive+Replacement/3167/4

I do not have a superdrive so I can't measure it. Unfortunately no camera handy either.
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geeji
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PostPosted: Fri Mar 01, 2013 7:28 pm    Post subject: Reply with quote

The plot thickens...
I assume from what you said that you aligned the ODD in the ODD holder using the screws; note that screws fit only on one side, you have to use scotch foam tape on the other (flat half-size triangular part).
Beware that the ODD needs to be as close as possible to the TOP part of the case, and as far away as possible from the mainboard (bottom part), thus the need for thick foam tape.

If the UJ 167 is NOT the problem, difficult on the other hand to incriminate the 2012 version of the mainboard, since justbecause apparently succeeded, at least from a mechanical point of view.

I wont be home for 3 weeks, so I wont be able to give you the precise dimensions of a 9.5mm before then, sorry.
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PostPosted: Sat Mar 09, 2013 12:11 pm    Post subject: Reply with quote

geeji wrote:
The plot thickens...
I assume from what you said that you aligned the ODD in the ODD holder using the screws; note that screws fit only on one side, you have to use scotch foam tape on the other (flat half-size triangular part).
Beware that the ODD needs to be as close as possible to the TOP part of the case, and as far away as possible from the mainboard (bottom part), thus the need for thick foam tape.

If the UJ 167 is NOT the problem, difficult on the other hand to incriminate the 2012 version of the mainboard, since justbecause apparently succeeded, at least from a mechanical point of view.

I wont be home for 3 weeks, so I wont be able to give you the precise dimensions of a 9.5mm before then, sorry.


Yes there was no problem using the screws on the one side to screw the ODD to the ODD frame. There was also no problem to screw that assembly to the housing.

So I fail to see why I should have made those cuts?

I did NOT use the tape you mentioned, I used some folded paper to achieve the same aim. Because the frame screws to the housing there is no place to move for the drive anyway.

It DOES look like the connector pushes the drive from the housing BUT without the connector, the board would not fit either.

There definitely is a capacitor in the way.

I am looking at some other solution to solve this issue...
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geeji
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PostPosted: Tue Mar 12, 2013 7:18 pm    Post subject: Reply with quote

It may help if you could post photos of your ODD+frame+mainboard outside of the case, but zooming on the parts which collide.
When I made my own assembly, the SATA connector was never an issue, so your comment on it "pushing" the drive from the housing (did you mean frame ?) seems curious.
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PostPosted: Tue Mar 19, 2013 2:40 pm    Post subject: Reply with quote

Well, this turns out to be quite an interesting project........

So I removed the capacitor, which was sitting in the way, from the main board.

I don't know how the other person who tried this hack with a late 2012 managed to get everything inside the enclosure without doing this because I am 100% sure this capacitor was sitting in the way.

Funnily enough the mac seemed to work (gray screen with folder "?", as I had the HD removed) even without this capacitor.

That I did not expect.

Nevertheless I soldered a 39u capacitor with long terminals (which I put through some heat shrink tubing) onto the board to replace the original smd capacitor.

This replacement capacitor had a diameter of 4mm.

Now everything fitted into the enclosure.

Next up I tried to insert a disk with a view to install an OS onto an external HD.

No joy the drive would not swallow the DVD.

First I thought this was an alignment issue because it felt like it was a bit too much effort to push the HD in.

So I disassembled the mini and put the stuff together on my desk without the enclosure.

Same problem, drive did not want to swallow the DVD.

So this is NOT an OS issue but a firmware issue.

I took the UJ167 and hooked it up to a PC. It swallowed the disk just fine so the drive is OK.

Because this PC did not have an OS, I now could not eject this disk.

I connected it to the mini expecting it to be spit out. No luck.

The eject button on the keyboard eventually caused the windows OS DVD to be ejected.

So then I figured lets see what happens when there is a mac install disk already inside the drive when I hook it up to the mini.

So I reconnected the UJ167 to the PC, put in a snow leopard installation DVD, disconnected it and connected it to the mini.


Mini tried to boot from DVD but stops with a CPU unsupported error.....


Soooo, it seems that so far the only thing which does not work is the insertion of the HD and that it is a firmware issue.

I can't escape the feeling apple did this on purpose...
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geeji
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PostPosted: Wed Mar 20, 2013 11:35 pm    Post subject: Reply with quote

@Not Sure : I am really sorry that after investing so much energy in that project, you still have a problem, which seems identical to the one blocking justbecause.
I have verified that it is not a Mountain Lion 10.8.2 issue on my Mac Mini 2011 (see one of my previous post), so it is either a Mac Mini 2012 firmware issue as you surmise, or a 10.8.2 issue since the Mac Mini 2012 seems to have been originally delivered with a special purpose advanced version of 10.8.2 (which had no need to support any internal ODD).
At that point, my only suggestion would be to install a generic version of 10.8.3 on an external FW/USB disk, boot from it with the ODD internally connected and see if it solves the problem.
Unfortunately, if it is a firmware issue, we are stomped unless using some hackintosk EFI solution provides a workaround.

I am really disappointed that what worked perfectly for me on the Mac Mini 2011 did not survive the next Mac Mini revision : I doubt Apple did it on purpose (for close to a year I was, AFAIK, the only one with this hack), but some overzealous tester may have found it would be a good idea to scratch the few lines of firmware for the ODD which were obviously "useless" on Mac Mini 2012...

PS : the fact that the Mac Mini 2012 refused to boot from a Snow Leopard DVD IS normal, since as a rule new hardware boots at the minimum from the OS with which it was originally shipped, which is Mountain Lion here.
Creating a DVD Install Disk from a Mountain Lion 10.8.3 full download would be an interesting test.


Last edited by geeji on Tue Apr 09, 2013 1:04 am; edited 1 time in total
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ultrix
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PostPosted: Wed Apr 03, 2013 7:51 pm    Post subject: Reply with quote

I got mine to work on a 2012 mini with a UJ267. Here are the details...

First off, I ended up breaking of the capacitor that has been mentioned when trying to reassemble the mini. Thankfully, it peeled the cap leads off the motherboard so I was easily able to solder the cap in a different spot that wouldn't interfere with the ODD.

A picture can be seen here: http://imgur.com/pUOYhwH

With respect to the optical drive, I had the same issues of the drive not wanting to swallow the disc. Not sure what could be wrong: the ODD, ODD cable, sata connector due to broken cap - I ended up getting a Slimline SATA to SATA converter. When connecting the ODD to the mini using the hard drive cable and the slimline converter, the drive swallowed the disc!

Referencing the slimline pinouts here: http://bit.ly/12h2WM8

Using a multimeter I was able to determine that when using the HDD cable with slimline adapter pin 4 (manufacturing diagnostic) was not connected to the mac mini header. When using the apple optical drive cable, the diagnostic pin was connected. After reading the spec and finding this pin is optional, I simply decided to remove it from the apple cable.

Using an xacto knife, I removed a 1/4" wide slice down the side of the slimline end of the apple odd cable, and using needle nose pliers yanked out the pin. Unfortunately, I didn't take pics, but the portion of the connector I removed is highlighted in green on this picture: http://imgur.com/LxKNNac

After removing the pin, the ODD would swallow drives. I booted the mini off both a rEFIt cd and a windows 7 cd. I am running windows 7 on it and installed off the cd. Blurays and everything seems to work just fine.
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geeji
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PostPosted: Thu Apr 04, 2013 12:42 am    Post subject: Reply with quote

Well, congratulations ultrix, you are likely the first one on the planet with a functional Mac Mini 2012 + internal Blu-ray burner !!! Very Happy Very Happy Very Happy

I understand you run only native Windows, booting directly from it, so the DVD non-swallowing issue seems definitely to be some hardware or firmware issue, not an OS X one.
I am curious how you came to suspect that the ODD might work with a slimline adapter when it would not when connected directly : educated guess or damn lucky ?

Also, why did you need to boot from a rEFIT cd, since any Mac can natively boot from a properly installed Boot Camp Windows partition ? You did not want to bother with OS X at all ?

I am also curious to understand why justbecause did not seem to have any problem with a prominent capacitor, when both you and Not Sure did (both with UJx67 ODD). May be different Mac Mini motherboards with different sizes of capacitors ? Or UJx67 Blu-ray drives slightly bigger than slim Superdrives ?
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