Mac Pro Side Panel Won't Lock

TSparger

macrumors member
Original poster
Jan 7, 2009
50
0
I just realized that I can open the side panel of my Mac Pro even though the lock lever in the back is in the locked position. Is this normal? I have a refurb unit and am wondering if it is a defect.
 

kornyboy

macrumors 68000
Sep 27, 2004
1,529
0
Knoxville, TN (USA)
Wirelessly posted (iPhone: Mozilla/5.0 (iPhone; U; CPU iPhone OS 2_2 like Mac OS X; en-us) AppleWebKit/525.18.1 (KHTML, like Gecko) Version/3.1.1 Mobile/5G77 Safari/525.20)

That shouldn't happen. It sounds like you are missing the tabs that lock the panel into place.
 

Sesshi

macrumors G3
Jun 3, 2006
8,113
1
One Nation Under Gordon
All four tabs above the HDD bays should be straight when looked at from above, and when you lock the lever back into the closed state with the lid off, you should see them slide to the left in a definite 'hook' arrangement with an orange indication coming into view.

In addition you should be aware that there is an additional push that is required beyond just putting the lid on, until it clicks into place.

Defect Refurb? If you don't find the above probably, who knows. I wouldn't have believed at first that refurb QC is even worse than new given how crap that is, but it seems to be the case in terms of the refurb replacements that we've received.
 

TSparger

macrumors member
Original poster
Jan 7, 2009
50
0
The tabs are there and appear to be straight and I see the orange when I push the lock lever down, but the tabs just don't seem to move laterally enough to catch the slots on the cover. I guess I will just live with it :(
 

gotzero

macrumors 68040
Jan 6, 2007
3,224
0
Mid-Atlantic, US
Do the hooks move the entire distance of their opening when you "close" the lever?

If so, make sure the top of the panel if flush against the rest of the computer before you close. It does require a little push to get in line.

If not, and it bothers you, you could always take it in if you have an accessible Apple Store.
 

Sesshi

macrumors G3
Jun 3, 2006
8,113
1
One Nation Under Gordon
Perhaps if you can post pictures of the tabs and possibly more importantly, the raised 'strip' inside of the lid where the tabs go into - we can help a little more.
 

gb1

macrumors newbie
Mar 25, 2014
1
0
Try This to Fix Mac Pro Side Panel not locking

I have had the same problem for years. I finally solved it. While this may be way too late for you, I'm adding the reply to help others, this is the first thread I found in a search on how to solve this.

I had replaced my DVD drives many years ago. Turns out that you have to give a really hard shove to the sled to seat it properly. If it's not in all the way, the locking mechanism can't slide all the way forward to lock the side panel. Once I got it in right, the side panel locks perfectly.
 

DPUser

macrumors 6502a
Jan 17, 2012
927
228
Rancho Bohemia, California
I have had the same problem for years. I finally solved it. While this may be way too late for you, I'm adding the reply to help others, this is the first thread I found in a search on how to solve this.

I had replaced my DVD drives many years ago. Turns out that you have to give a really hard shove to the sled to seat it properly. If it's not in all the way, the locking mechanism can't slide all the way forward to lock the side panel. Once I got it in right, the side panel locks perfectly.
Thanks for sharing this nice post. :)
 

Macschrauber

macrumors 6502a
Dec 27, 2015
816
315
Germany
I know this is an ancient thread but it happened that I got a Mac Pro with a broken side panel lock mechanism.

Searched the web and the only thing I found was this thread.

Had a hard time taking it apart.

Hardest part was getting the tabs off to get the lever out of the case.

Its rather easy if one sees the mechanism behind those tabs and how to get off the springs, so here some pics for reference:

IMG_3034.JPG IMG_3041.JPG
 

MIKX

macrumors 68000
Dec 16, 2004
1,721
637
Aussie in Japan
Most of this post is a little off topic but if the OP has to get a new side cover he could perhaps do the mods outlined below. :rolleyes:


Tsparger
It might be a 2,1 side cover. . it will fit but won't lock. I use one on my 2009 4,1>5,1 as I drilled a hole in it to insert a ' drive activity LED " from my Samsung 970's PCIe adaptor. I also cut a 5 mm slot towards the rear & at the bottom to allow USB fan cables access for cooling the Northbridge.

This is the cMP 2,1 side cover. I keep it secured with some tape along the top edge.
( I still have the original 2009 side cover )

The pic says Samsung 960 but now there is a 970 EVO installed for Mojave 10.14.6
Behind the external USB 3.0 Dock there is a 5 mm wide slot for Northbridge USB fans cables.

Here in Japan now, outside in my garden, it is 38°C

cMP 4,1>5,1 side cover ON.JPG
 
Last edited:

macguru9999

macrumors 6502
Aug 9, 2006
312
99
I had a 5,1 delivered with a door that would not lock, it turns out it was the door from a G5, the slots are in a different position and wont engage. I swapped the door with a spare one from a 3,1 and it locked fine.
 

saintelmo

macrumors newbie
Mar 22, 2020
1
0
Try This to Fix Mac Pro Side Panel not locking

I have had the same problem for years. I finally solved it. While this may be way too late for you, I'm adding the reply to help others, this is the first thread I found in a search on how to solve this.

I had replaced my DVD drives many years ago. Turns out that you have to give a really hard shove to the sled to seat it properly. If it's not in all the way, the locking mechanism can't slide all the way forward to lock the side panel. Once I got it in right, the side panel locks perfectly.
I had a loose panels for years and didn't know until I moved the computer one day. I couldn't figure it out. Your situation above was exactly the problem I had. Fixed it in 2 seconds. I know your post is years old, but I wanted to say thanks anyway just in case you might see this reply.
 
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