MP 7,1 Has anyone had problems closing/locking the latch?

machenryr

macrumors 6502a
Original poster
Jan 25, 2016
535
70
Man. I’m a troubleshooting nightmare. I bought some bad ram from Nemix. Trying to find which module it is I open and install a stick at a time. Suddenly the latch won’t close or lock. Has anyone experienced this? How do you fix it?
 

Snow Tiger

macrumors 6502a
Dec 18, 2019
854
567
Hire a technician ? Not all of us have full tummies at the moment .

Nemix brand memory is about as low as you can go , quality wise .

Transintl has quality MP7,1 memory cheaper than any one else . Cheaper than Apple or OWC .

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Man. I’m a troubleshooting nightmare. I bought some bad ram from Nemix. Trying to find which module it is I open and install a stick at a time. Suddenly the latch won’t close or lock. Has anyone experienced this? How do you fix it?
When you say "latch" did you mean the locking mechanism of the individual memory module or the handle to the MP7,1's housing ?
 

machenryr

macrumors 6502a
Original poster
Jan 25, 2016
535
70
No. The locking mechanism on the top of the MP. The case. It has nothing to do with the ram. I’m at the Mac Store now. I think I see what the problem is but since it’s under Apple Care I think it’s best not to take a pair of pliers and a hammer. Lol.

It’s like the circular catch is soft aluminum. In my anxiousness I must’ve bent it. I don’t know how. I thought I was being pretty careful.
 
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machenryr

macrumors 6502a
Original poster
Jan 25, 2016
535
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Nemix is sending me two new 32gb modules for one that’s bad. I can live with that.
 

Snow Tiger

macrumors 6502a
Dec 18, 2019
854
567
No. The locking mechanism on the top of the MP. The case. It has nothing to do with the ram. I’m at the Mac Store now. I think I see what the problem is but since it’s under Apple Care I think it’s best not to take a pair of pliers and a hammer. Lol.

It’s like the circular catch is soft aluminum. In my anxiousness I must’ve bent it. I don’t know how. I thought I was being pretty careful.
You might consider giving up weightlifting ...

With workstations and servers , it's OK to use gentle force when necessary to open / close , install / remove something . But never really put your full strength into a job . This is especially true of paper thin Dell and Lenovo chassis . I'm surprised the MP7,1's handle is so fragile .
 

flowrider

macrumors 603
Nov 23, 2012
6,034
2,274
Ya know, My NcMP is in transit, But I have been mulling this potential issue for awhile. With my current 5,1 cMP, I can troubleshoot with the access side off. It's not necessary for me to button up the machine each time I need to investigate an issue 1387914497.gif

Lou
 

machenryr

macrumors 6502a
Original poster
Jan 25, 2016
535
70
Ya know, My NcMP is in transit, But I have been mulling this potential issue for awhile. With my current 5,1 cMP, I can troubleshoot with the access side off. It's not necessary for me to button up the machine each time I need to investigate an issue View attachment 892462

Lou
Yes. It's kind of a drag. I thought I'd seen videos of guys with the MP on and the cover off, but maybe not?

All I can say is be patient and careful. Lift it straight up and down and make absolutely sure the little dots are fully lined up before you lift it off or on.
 

bxs

macrumors 65816
Oct 20, 2007
1,105
479
Seattle, WA
Hire a technician ? Not all of us have full tummies at the moment .

Nemix brand memory is about as low as you can go , quality wise .

Transintl has quality MP7,1 memory cheaper than any one else . Cheaper than Apple or OWC .

- - Post merged: - -



When you say "latch" did you mean the locking mechanism of the individual memory module or the handle to the MP7,1's housing ?
I have NEMIX (12x 32GB R-DIMMs) in my MP7,1 16-core and it's running fine without issues. I paid around $1,500 for the 384 GB of RAM early on in Jan 2020, just before prices started to rise everywhere because the vendors saw a chance to make more brass for themselves.

I'll take one of the R-DIMMs out and take images of front & back later on after completing my initial setups as I only received my MP7,1 yesterday.

It's currently under 'torture' testing using Prime95 and the RAM is being pounded on as well as every thing else. No hw/sw issues have arisen so far after running the 'torture' test for close to 24 hrs.

[EDIT] I found an earlier image of one of my NEMIX 32GB R-DIMMs.... see attached. It's not very detailed but it's all I have at this time.
 

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bxs

macrumors 65816
Oct 20, 2007
1,105
479
Seattle, WA
Man. I’m a troubleshooting nightmare. I bought some bad ram from Nemix. Trying to find which module it is I open and install a stick at a time. Suddenly the latch won’t close or lock. Has anyone experienced this? How do you fix it?
My first attempt at replacing the casing gave me some weird issue. I thought I had closed it down correctly, even with handle being return to the 'closed' position. When I tried booting the MP7,1 up it would not boot and the white LED was not coming on. I scratch my head and then discovered the casing was not fully seated even the the handle had be closed. I released the handle and gave it a slight nudge down and this time when the handle was turned the casing sealed down as it should, and I then was able to boot successfully.

I've now had the casing off/on several times since the above experience and I take care the when the handle is turned the casing moves down to close up properly.

What disturbs me is that I was able to rotate the handle with the casing being fully seated. I' now take much more care and attention when closing the case down.
 

Snow Tiger

macrumors 6502a
Dec 18, 2019
854
567
I have NEMIX (12x 32GB R-DIMMs) in my MP7,1 16-core and it's running fine without issues. I paid around $1,500 for the 384 GB of RAM early on in Jan 2020, just before prices started to rise everywhere because the vendors saw a chance to make more brass for themselves.

I'll take one of the R-DIMMs out and take images of front & back later on after completing my initial setups as I only received my MP7,1 yesterday.

It's currently under 'torture' testing using Prime95 and the RAM is being pounded on as well as every thing else. No hw/sw issues have arisen so far after running the 'torture' test for close to 24 hrs.

[EDIT] I found an earlier image of one of my NEMIX 32GB R-DIMMs.... see attached. It's not very detailed but it's all I have at this time.
I can't see the markings on the ICs . If you could take some clear , close ups of the DRAM chips and the register chip ( the one in the center on one side ) I would be able to be in a better position to judge the quality of the module .
 
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